Population varieties can meet the needs of organic farming as they are composed of diverse genotypes and have nutritional and sensory characteristics of interest. Their intra-specific genetic variability helps to adap...Population varieties can meet the needs of organic farming as they are composed of diverse genotypes and have nutritional and sensory characteristics of interest. Their intra-specific genetic variability helps to adapt to the diversity of soil and climate conditions, management practices and needs. Moreover, an integrated organic bread sector has emerged willing to use more wheat populations. To explore sensory and nutritional potential of bread wheat populations, hedonic tests, sensory profile and nutritional analyses were implemented on eight wheat population varieties and one modern variety. Hedonic tests revealed consensus among consumer when ranking according to specific sensory characteristics and showed preferences for red wheat breads. Descriptive sensory test showed significant differences between genotypes on 6 out of 11 descriptors and confirmed the sensory specificity of red wheat accessions. Nutritional analyses showed differences especially on minerals content. Sensory differences between breads from different genotypes can be perceived both by trained and untrained panels as suggested by results. Moreover, red accessions showed specific sensory characteristics which are well-perceived by the two panels. Breeding effort should be maintained for high diverse genotypes with improved sensory and nutritional qualities adapted to organic farming conditions. Indicators like kernel colour should be sought to help integrate such criteria.展开更多
Flat breads are very popular especially in those parts of the world where bread constitutes a major source of dietary protein and calories. There are several forms of flat bread, and the variation is mainly in terms o...Flat breads are very popular especially in those parts of the world where bread constitutes a major source of dietary protein and calories. There are several forms of flat bread, and the variation is mainly in terms of ingredient, technology, and quality. Several modifications in the formulations have been made in the recent past in order to improve the quality and delicacy of these food products. With urbanization and industrialization, the demand for ready to eat and easy to carry products resembling flat bread in appearance, but having desirable qualities of bread offers one exciting possibility to this effect. In India, wheat is one of the daily staples, consumed in the form of different flat breads such as Chapati, Parotha, Phulka, Puri and Tandoori Roti. Different wheat varieties have been used for the production of flat breads. In recent years, many researchers have tried to improve ingredient level, baking properties, organoleptic characteristics, nutritional value and extension of the shelf life of flat bread. They are usually produced from a simple recipe consisting of flour, salt and water in varying proportions, however, sometimes the manufactures also use optional ingredients like yeast fat, skim milk powder and certain additives like emulsifiers, hydrocolloids, enzymes and preservatives for quality improvement and shelf life enhancement.展开更多
Adding different percentages 1%, 3% and 5% of fenugreek flour depending on maize flour base to gluten free bread recipe for making tanoor bread was used to improve the tanoor bread quality, in term of sensory properti...Adding different percentages 1%, 3% and 5% of fenugreek flour depending on maize flour base to gluten free bread recipe for making tanoor bread was used to improve the tanoor bread quality, in term of sensory properties like volume, crust, color, symmetry, bake uniformity, texture, grain, aroma and taste. Also some rheological properties like gelatinization temperature and maximum viscosity of dough with bread keeping quality were used. The aim of this work is to produce suitable bread with maintaining the bread quality by selecting the suitable percentage to produce gluten free bread for people who suffering from celiac diseases and its contribution to health benefits. Significant differences were observed by using 5% of fenugreek flour in term of gelatinization temperature, maximum viscosity, breed keeping quality and volume. While using 1% of fenugreek flour significantly improved symmetry value, bread texture, crumb color, aroma and taste.展开更多
The aim of this study was to optimize composite breads of wheat and whole millet flour by the use of natural improvers. Three types of local malted cereals were used as natural improvers. The millet flour was fermente...The aim of this study was to optimize composite breads of wheat and whole millet flour by the use of natural improvers. Three types of local malted cereals were used as natural improvers. The millet flour was fermented with EPSs producing LAB strain prior to use. The technological characteristics of the composite flours were determined using an alveograph. The physico-chemical and nutritional characteristics of the composite breads were determined using standard methods and their sensory profiles were evaluated by a panel of 35 consumers. The alveograph results showed an increase in dough resistance, deformation and a decrease in extensibility and elasticity with the level of incorporation of millet flour. From the results of physico-chemical analyses of composite breads, no significant difference (p > 0.05) was observed in the use of the three types of local cereal malts except for the incorporation of 50% of the millet flour. The control sample presented the lowest acidity and dry matter value, the highest water content and pH value. No significant difference (p > 0.05) was observed in the use of the three types of cereal malts for the macronutrient contents of the composite bread samples. However, differences were observed according to the levels of incorporation. Macronutrients results showed an increase in protein content (11.17% ± 0.28% - 14.01% ± 0.10%/DM);crude fat content (1.86% ± 0.05% - 2.48% ± 0.20%/DM) and a decrease in carbohydrates content (85.36% ± 0.54% - 81.06% ± 0.36%/ DM). Regarding the content of mineral elements, significant differences (p < 0.05) were observed in the use of the three types of cereal malts for the incorporation of 15% (Mg and Fe content), 30% (Fe, Zn and K) and 50% (content of Zn, K, Na and Mg) of millet flour. The free amino acid profile revealed three essential amino acids such as valine, isoleucine and lysine. Breads incorporated with 30% of whole millet flour were the most appreciated by consumers.展开更多
Bread is still the most important food in Polish households. Staropolski and Pytlowy are two typical Polish breads, prepared with wheat and rye flour. The aim of this study was to examine the occurrence of volatile co...Bread is still the most important food in Polish households. Staropolski and Pytlowy are two typical Polish breads, prepared with wheat and rye flour. The aim of this study was to examine the occurrence of volatile contaminants such as furan and its derivatives, and present a volatile profile of the most common furan derivatives in the described products. To measure concentration of chemical compounds such as furan and furan derivatives, fast and effective solid-phase micro-extraction/gas chromatography/mass spectrometry (SPME/GC/MS) methods were adapted. This study showed the differences in furan occurrence between Pytlowy and Staropolski, however, the greater differences were observed between different times and temperatures of baking rather than between the bread types. Clearly, the higher concentrations were found in products prepared during the longest baking time period of 50 min, and temperatures of 230 ℃ and 240 ℃. The highest furan level was detected in Staropolski 28.89 ± 1.16/μg/kg, baked for 50 min at 230 ℃ in bread crust. The volatile fraction of bread crust was composed of 5-9 furan derivatives while crumb layer contained only furan-2-pentyl. It was concluded that furan is present in almost each type of bread and percentage of furan derivatives in all volatile fractions ranged from 0.5 % to 60.6% in crust of examined bars.展开更多
Bread wheat(Triticum aestivum)is a staple food crop worldwide.The genetic dissection of important nutrient traits is essential for the biofortification of wheat to meet the nutritional needs of the world's growing...Bread wheat(Triticum aestivum)is a staple food crop worldwide.The genetic dissection of important nutrient traits is essential for the biofortification of wheat to meet the nutritional needs of the world's growing population.Here,45,298 single-nucleotide polymorphisms(SNPs)from 55K chip arrays were used to genotype a panel of 768 wheat cultivars,and a total of 154 quantitative trait loci(QTLs)were detected for eight traits under three environments by genome-wide association study(GWAS).Three QTLs(qMn-3B.1,qFe-3B.4,and qSe-3B.1/qFe-3B.6)detected repeatedly under different environments or traits were subjected to subsequent analyses based on linkage disequilibrium decay and the P-values of significant SNPs.Significant SNPs in the three QTL regions formed six haplotypes for qMn-3B.1,three haplotypes for qFe-3B.4,and three haplotypes for qSe-3B.1/qFe-3B.6.Phenotypic analysis revealed significant differences among haplotypes.These results indicated that the concentrations of several nutrient elements have been modified during the domestication of landraces to modern wheat.Based on the QTL regions,we identified 15 high-confidence genes,eight of which were stably expressed in different tissues and/or developmental stages.TraesCS3B02G046100 in qMn-3B.1 and TraesCS3B02G199500 in qSe-3B.1/qFe-3B.6 were both inferred to interact with metal ions according to the Gene Ontology(GO)analysis.TraesCS3B02G199000,which belongs to qSe-3B.1/qFe-3B.6,was determined to be a member of the WRKY gene family.Overall,this study provides several reliable QTLs that may significantly affect the concentrations of nutrient elements in wheat grain,and this information will facilitate the breeding of wheat cultivars with improved grain properties.展开更多
BACKGROUND Nutrition recommendations in patients with type 2 diabetes mellitus(T2DM)are to consume rye or integral bread instead of white bread.A positive effect on glucoregulation has been achieved by enriching food ...BACKGROUND Nutrition recommendations in patients with type 2 diabetes mellitus(T2DM)are to consume rye or integral bread instead of white bread.A positive effect on glucoregulation has been achieved by enriching food with various biologically active substances of herbal origin,so we formulated an herbal mixture that can be used as a supplement for a special type of bread(STB)to achieve better effects on postprandial glucose and insulin levels in patients with T2DM.AIM To compare organoleptic characteristics and effects of two types of bread on postprandial glucose and insulin levels in T2DM patients.METHODS This trial included 97 patients with T2DM.A parallel group of 16 healthy subjects was also investigated.All participants were given 50 g of rye bread and the same amount of a STB with an herbal mixture on 2 consecutive days.Postprandial blood glucose and insulin levels were compared at the 30^(th),60^(th),90^(th) and 120th min.A questionnaire was used for subjective estimation of the organoleptic and satiety features of the two types of bread.RESULTS Compared to patients who consumed rye bread,significantly lower postprandial blood glucose and insulin concentrations were found in T2DM patients who consumed STB.No relevant differences were found among the healthy subjects.Subjectively estimated organoleptic and satiety characteristics are better for STB than for rye bread.CONCLUSION STB have better effects than rye bread on postprandial glucoregulation in T2DM patients.Subjectively estimated organoleptic and satiety characteristics are better for STB than for rye bread.Therefore,STB can be recommended for nutrition in T2DM patients.展开更多
Objective:Seawater leakage in Al-Jabal Al-Akhdar East Libya's coastal areas is one of the most biggest obstacles to farmers obtaining a highly productive crop.As a result,the experiment was conducted in a laborato...Objective:Seawater leakage in Al-Jabal Al-Akhdar East Libya's coastal areas is one of the most biggest obstacles to farmers obtaining a highly productive crop.As a result,the experiment was conducted in a laboratory to find out the impact of irrigation with seawater on the salt tolerance of Acsad Bread wheat genotypes.Method:Ten genotypes(1398,1492,1514,1522,1524,1536,1538,1544,1550,and 1562),obtained from the Arab Center for the Studies of Arid Zones and Dry Lands Acsad,were used in the study,10 seeds of each genotype with three repetitions were germinated under four seawater concentrations(10,20,30 and 40%).Results:The results showed that there were highly significant(P≤0.05)differences in the genotypes’response to all salinity concentrations,Which led to decreasing germination percentage,delaying the average germination time,and decreasing radical/plumule length and seedling fresh/dry weight compared with a control.As noted genotypes(1524,1522 and 1514)were able to germinate in all concentrations of seawater,and gave the best average for all the studied traits.Also,the study indicated that a concentration of seawater of 40%was the most toxic for all wheat genotypes.The results of this study categorize the wheat genotypes into tolerant genotypes(1524,1522 and 1514),moderate tolerant(1492,1536),and sensitive(1398,1538,1544,1550 and 1562).Conclusion:The results concluded that the possibility of wheat crops agriculture into tolerant in Libyan coastal locations in which seawater concentration did not exceed 30%.展开更多
Staling is an important issue that Chinese steamed bread(CSB)may encounter during storage,which significantly affects their taste,flavor,and nutritional value.The monitoring technology for rapid aging is particularly ...Staling is an important issue that Chinese steamed bread(CSB)may encounter during storage,which significantly affects their taste,flavor,and nutritional value.The monitoring technology for rapid aging is particularly important to effectively control the aging process of CSB,reduce quality deterioration,and promote the industrial production of CSB.Raman spectroscopy has been widely used in the study of food structure and properties due to its non-destructive and high-sensitivity characteristics,particularly demonstrating unique advantages in the analysis of starch structure.This study explored the possibility of analyzing the staling of CSB using Raman spectroscopy based on hardness and moisture content.Analysis of the correlation between the hardness of CSB and the full width at half maximum(FWHM)at 480 cm^(−1)during storage was conducted,and a significant positive correlation between them was found,with R^(2)above 0.8.Besides,nine characteristic peaks of CSB samples related to starch were selected for analysis.As the moisture content of CSB decreased,the peak intensities and areas of showed an upward trend during storage,with the best correlation coefficient above 0.8 revealed by linear regression analysis.Therefore,Raman spectra could be used as a potential method for the fast prediction of CSB staling.展开更多
This study makes it possible to establish baking flours of nutritional quality and technologically acceptable following the increase in their rheological parameters due to the insertion of gluten flour. The composite ...This study makes it possible to establish baking flours of nutritional quality and technologically acceptable following the increase in their rheological parameters due to the insertion of gluten flour. The composite flours were obtained using the Philips mixer type (model HR2811). The nutritional qualities of the formulated flours were determined by the Kjeldahl, AOAC 985-29, UV-VIS spectrophotometry (DR 5000;HACH and LANGE, France) and Soxhlet gravimetric methods. The compounds obtained are respectively: Protein, carbohydrate, lipid, micronutrient and vitamin contents. Monitoring the analysis of functional properties (water and oil absorption capacity) as well as baking value.展开更多
Chestnut is a high nutritional value food that has been widely used as a tonic in traditional Chinese medicine.As an emerging functional food ingredient,Chinese chestnuts are rich in a range of bioactive nutrients suc...Chestnut is a high nutritional value food that has been widely used as a tonic in traditional Chinese medicine.As an emerging functional food ingredient,Chinese chestnuts are rich in a range of bioactive nutrients such as starch,dietary fiber,fat,protein,trace metal element and vitamins A,B,C,D and other nutrients.In our study,Chinese chestnut powder(CCP)were added into bread formulation at 2%-6%levels(based on flour weight)to produce fresh bread with enhanced anti-staling characteristics and starch digestion inhibitory ability.The texture properties,retrogradation enthalpy,water distribution,and estimated glycemic index(eGI)of wheat bread containing CCP as a functional additive were also investigated.The results showed that incorporation of CCP apparently affected bread texture,resulting in increased hardness,as well as decreased the specific volume of wheat bread.These influences were generally proportional to the amount of CCP used.It was found that adding too much CCP resulted in a dark red color,showing increased significantly higher total color difference(ΔE)and L values.Conversely,addition of CCP significantly reduced starch digestion rate and digestion extent in bread,and the reduction degree was positively related to the amount of CCP applied.The greatest reduction in eGI value from 79.40(control)to 75.02(6%CPP bread)was observed.Meanwhile,the content of resistant starch of 6%CPP bread was about 1.36 times higher than that of control bread.CCP also reduced crumb water loss and drove the water shift from the bound to the mobile state after stored for 7 days.The retrogradation enthalpy analyses further confirmed that CCP inhibited starch retrogradation and recrystallization.These results suggested that Chinese chestnut powder could be incorporated into fresh bread to provide health functions,such as lowering potential glycaemic response and improving anti-staling characteristics of bread.展开更多
The authors regret to report some missing information in the authorship and associated changes of the paper.On page 1512,the author information reads:“Caiyun Liu a,Wei Guo a,Yang Wang b,Bisheng Fu a,Jaroslav Dolezel ...The authors regret to report some missing information in the authorship and associated changes of the paper.On page 1512,the author information reads:“Caiyun Liu a,Wei Guo a,Yang Wang b,Bisheng Fu a,Jaroslav Dolezel c,Ying Liu a,Wenling Zhai a,Mahmoud Said c,d,István Molnár c,d,e,Katerina Holušovác,Ruiqi Zhang b,*,Jizhong Wu a,f,g,*”.It should be changed to“Caiyun Liu a,1,Wei Guo a,1,Yang Wang b,Bisheng Fu a,Jaroslav Dolezel c,Ying Liu a,Wenling Zhai a,Mahmoud Said c,d,István Molnár c,d,e,Katerina Holušovác,Ruiqi Zhang b,*,Jizhong Wu a,f,g,*”.On page 1512 in the footnote,the following sentence should be added below the corresponding authors’information:1 These authors contributed equally to this work.The correction has been updated above.The authors would like to apologize for any inconvenience caused.展开更多
The issue of plastic pollution has attracted widespread social attention.Gelatin is valued as a degradable bio-based material,especially as an edible active packaging material.However,the commonly used solution-castin...The issue of plastic pollution has attracted widespread social attention.Gelatin is valued as a degradable bio-based material,especially as an edible active packaging material.However,the commonly used solution-casting filmforming technology limits the mass production of gelatin films.In order to improve the production efficiency and enhance the commercial value of gelatin films,in this study,fish gelatin(FG)particles were successfully blended with essential oils(EOs)to prepare active films by melt extrusion technique,a common method for commercial plastics,and applied to bread preservation.FG and EOs showed good compatibility with each other.The elongation at break was enhanced in all samples of films containing EOs.The addition of EOs weakened the oxygen barrier properties of the FG films.The gelatin films containing clove EO showed the highest DPPH radical scavenging rate of 39.38%.The films containing oregano EO showed the highest antibacterial activity,with 98.84%and 99.86% against S.aureus and E.coli,respectively.The bread preservation results showed a slower microbial growth rate in the samples preserved by the active films.The bread samples preserved in commercial PE film showed mold on day 3,and the bread samples preserved in active gelatin film showed mold visible to the naked eye by day 7.This study demonstrates the potential of gelatin-based activated films for commercial application in baked goods preservation.展开更多
Germination,a powerful biofortification technique,holds immense potential in bolstering the micronutrient profile of essential staple grains,thereby paving the way for optimal nutritional enhancement.The primary goal ...Germination,a powerful biofortification technique,holds immense potential in bolstering the micronutrient profile of essential staple grains,thereby paving the way for optimal nutritional enhancement.The primary goal of this study was to improve the technological functionality of germinated wheat flour by incorporating pentosanase(Pn)and glucose oxidase(Gox)enzymes,with particular emphasis on the evolutionary changes in its components.The inclusion of Gox did not produce any substantial impact on the volumetric characteristics of the steamed bread.The incorporation of Pn and Gox has been seen to enhance the overall excellence of steamed bread by optimizing loaf volume and textural characteristics while also improving the thermal stability of the dough.The existence of two endothermic peaks could be attributed to bound water or alterations in the granules within the starch crystallization region.Adding Pn and Gox reduced and increased the formation and stability time of the dough,respectively.A certain ratio was employed to assess alternations in the crystallinity of starch granules over a limited range.After steaming,a significant decrease in IR1047/1022 was observed,indicating that the elevated temperature partially disrupted the internal starch crystal structure,leading to a gelatinization reaction with water.The ratio of tensile resistance(R)and elongation(E)of dough increased significantly compared to the control.The results obtained from this study indicate that the simultaneous inclusion of enzymes(Pn+Gox)holds significant promise for expanding the technological functionality of germinated wheat flour dough and improving the quality attributes of steamed bread.展开更多
The effect of incorporation of defatted flour from seeds of sweet orange on wheat flour bread quality was investigated.Seeds were removed from the fruits of sweet orange,sun dried,milled and defatted with ethanol.The ...The effect of incorporation of defatted flour from seeds of sweet orange on wheat flour bread quality was investigated.Seeds were removed from the fruits of sweet orange,sun dried,milled and defatted with ethanol.The defatted orange seed flour was incorporated into wheat flour at 5,10,and 15%.The chemical composition and physicochemical properties of the composite flours were assessed.The composite flours were used to prepare breads and the nutrients composition,antioxidant,physical and sensory qualities of the breads were determined.The water absorption,oil absorption,emulsifying and swelling capacities increased while foaming capacity and bulk density decreased with the addition of the defatted seed flour in the blends.The addition of defatted seed flour increased significantly(P<0.05)the ash(1.98%–3.05%),crude fiber(1.26%–2.98%)and carbohydrate(47.78%–55.90%)contents but decreased the moisture(23.59%–20.37%),crude fat(12.43%–8.98%)and protein(12.96%–8.72%)contents of the breads.The calcium,sodium,iron and zinc contents improved but phosphorus and potassium levels decreased with the incorporation of the defatted seed flour.The phenols,flavonoids,alkaloids,saponins,and carotenoids contents varied from 85.03–18.59 mg/100g,3.11–7.83 mg/100g,7.30–12.06 mg/100g,1.87–2.06 mg/100g,and 5.46–15.84 mg/100g,respectively.The loaf volume,specific volume and oven spring of breads decreased while loaf weight increased with the incorporation of defatted flour.The antioxidant activities of breads containing 15%defatted seed flour increased over that the 100%wheat bread.The ratings for the sensory attributes decreased with the addition of defatted seed flour in the breads.However,the ratings for the sensory qualities of breads containing 5 and 10%defatted seed flours did not differ significantly(P<0.05)from those of the 100%wheat bread.It is concluded that defatted flour from seeds of sweet orange fruits could be used to substitute 10%wheat flour in bread without adversely affecting the qualities of the breads.展开更多
In this study, 13 strong-gluten wheat varieties screened by the Key Project of Modern Agricultural Industry Technology System "Study on Industrial Technology for Strong-gluten Wheat from Lime Concretion Black Soil Ar...In this study, 13 strong-gluten wheat varieties screened by the Key Project of Modern Agricultural Industry Technology System "Study on Industrial Technology for Strong-gluten Wheat from Lime Concretion Black Soil Area in the Huanghuai Wheat Region" were used as experimental materials to investigate their bread-making quality, noodle-making quality and other related characteristics. The results showed that more than half of the wheat varieties had better bread-making quality; the bread made from wheat with longer dough mixing time than 3.0 min had better texture, lighter color, and better taste. All these 13 strong-gluten wheat varieties showed good noodle-making quality in color, appearance, smoothness and taste; the differences between varieties were mainly found in palatability and viscoelasticity. Jimai 20, Xinong 979, Zhengmai 7698, Ji'nan 17 and Zhengmai 9023 exhibited excellent bread-making quality; Zhengmai 366, Jimai 20 and Xinong 979 displayed excellent noodle-making quality. Fresh dough sheets made from Zhengmai 366, Jimai 20 and Xinong 979 exhibited slight color variation within 24 h and high peak starch paste viscosity; dry and cooked noodles made from Zhengmai 366, Jimai 20 and Xinong 979 had good quality.展开更多
Have you ever,at any onetime,had the feeling that life isbad,real bad,and you wish youwere in another situation?Youfind life make things difficult foryou,work sucks,life sucks,everything seems to go wrong...Read the f...Have you ever,at any onetime,had the feeling that life isbad,real bad,and you wish youwere in another situation?Youfind life make things difficult foryou,work sucks,life sucks,everything seems to go wrong...Read the following story...it may change your views aboutlife:展开更多
文摘Population varieties can meet the needs of organic farming as they are composed of diverse genotypes and have nutritional and sensory characteristics of interest. Their intra-specific genetic variability helps to adapt to the diversity of soil and climate conditions, management practices and needs. Moreover, an integrated organic bread sector has emerged willing to use more wheat populations. To explore sensory and nutritional potential of bread wheat populations, hedonic tests, sensory profile and nutritional analyses were implemented on eight wheat population varieties and one modern variety. Hedonic tests revealed consensus among consumer when ranking according to specific sensory characteristics and showed preferences for red wheat breads. Descriptive sensory test showed significant differences between genotypes on 6 out of 11 descriptors and confirmed the sensory specificity of red wheat accessions. Nutritional analyses showed differences especially on minerals content. Sensory differences between breads from different genotypes can be perceived both by trained and untrained panels as suggested by results. Moreover, red accessions showed specific sensory characteristics which are well-perceived by the two panels. Breeding effort should be maintained for high diverse genotypes with improved sensory and nutritional qualities adapted to organic farming conditions. Indicators like kernel colour should be sought to help integrate such criteria.
文摘Flat breads are very popular especially in those parts of the world where bread constitutes a major source of dietary protein and calories. There are several forms of flat bread, and the variation is mainly in terms of ingredient, technology, and quality. Several modifications in the formulations have been made in the recent past in order to improve the quality and delicacy of these food products. With urbanization and industrialization, the demand for ready to eat and easy to carry products resembling flat bread in appearance, but having desirable qualities of bread offers one exciting possibility to this effect. In India, wheat is one of the daily staples, consumed in the form of different flat breads such as Chapati, Parotha, Phulka, Puri and Tandoori Roti. Different wheat varieties have been used for the production of flat breads. In recent years, many researchers have tried to improve ingredient level, baking properties, organoleptic characteristics, nutritional value and extension of the shelf life of flat bread. They are usually produced from a simple recipe consisting of flour, salt and water in varying proportions, however, sometimes the manufactures also use optional ingredients like yeast fat, skim milk powder and certain additives like emulsifiers, hydrocolloids, enzymes and preservatives for quality improvement and shelf life enhancement.
文摘Adding different percentages 1%, 3% and 5% of fenugreek flour depending on maize flour base to gluten free bread recipe for making tanoor bread was used to improve the tanoor bread quality, in term of sensory properties like volume, crust, color, symmetry, bake uniformity, texture, grain, aroma and taste. Also some rheological properties like gelatinization temperature and maximum viscosity of dough with bread keeping quality were used. The aim of this work is to produce suitable bread with maintaining the bread quality by selecting the suitable percentage to produce gluten free bread for people who suffering from celiac diseases and its contribution to health benefits. Significant differences were observed by using 5% of fenugreek flour in term of gelatinization temperature, maximum viscosity, breed keeping quality and volume. While using 1% of fenugreek flour significantly improved symmetry value, bread texture, crumb color, aroma and taste.
文摘The aim of this study was to optimize composite breads of wheat and whole millet flour by the use of natural improvers. Three types of local malted cereals were used as natural improvers. The millet flour was fermented with EPSs producing LAB strain prior to use. The technological characteristics of the composite flours were determined using an alveograph. The physico-chemical and nutritional characteristics of the composite breads were determined using standard methods and their sensory profiles were evaluated by a panel of 35 consumers. The alveograph results showed an increase in dough resistance, deformation and a decrease in extensibility and elasticity with the level of incorporation of millet flour. From the results of physico-chemical analyses of composite breads, no significant difference (p > 0.05) was observed in the use of the three types of local cereal malts except for the incorporation of 50% of the millet flour. The control sample presented the lowest acidity and dry matter value, the highest water content and pH value. No significant difference (p > 0.05) was observed in the use of the three types of cereal malts for the macronutrient contents of the composite bread samples. However, differences were observed according to the levels of incorporation. Macronutrients results showed an increase in protein content (11.17% ± 0.28% - 14.01% ± 0.10%/DM);crude fat content (1.86% ± 0.05% - 2.48% ± 0.20%/DM) and a decrease in carbohydrates content (85.36% ± 0.54% - 81.06% ± 0.36%/ DM). Regarding the content of mineral elements, significant differences (p < 0.05) were observed in the use of the three types of cereal malts for the incorporation of 15% (Mg and Fe content), 30% (Fe, Zn and K) and 50% (content of Zn, K, Na and Mg) of millet flour. The free amino acid profile revealed three essential amino acids such as valine, isoleucine and lysine. Breads incorporated with 30% of whole millet flour were the most appreciated by consumers.
文摘Bread is still the most important food in Polish households. Staropolski and Pytlowy are two typical Polish breads, prepared with wheat and rye flour. The aim of this study was to examine the occurrence of volatile contaminants such as furan and its derivatives, and present a volatile profile of the most common furan derivatives in the described products. To measure concentration of chemical compounds such as furan and furan derivatives, fast and effective solid-phase micro-extraction/gas chromatography/mass spectrometry (SPME/GC/MS) methods were adapted. This study showed the differences in furan occurrence between Pytlowy and Staropolski, however, the greater differences were observed between different times and temperatures of baking rather than between the bread types. Clearly, the higher concentrations were found in products prepared during the longest baking time period of 50 min, and temperatures of 230 ℃ and 240 ℃. The highest furan level was detected in Staropolski 28.89 ± 1.16/μg/kg, baked for 50 min at 230 ℃ in bread crust. The volatile fraction of bread crust was composed of 5-9 furan derivatives while crumb layer contained only furan-2-pentyl. It was concluded that furan is present in almost each type of bread and percentage of furan derivatives in all volatile fractions ranged from 0.5 % to 60.6% in crust of examined bars.
基金This work was supported by grants from the Natural Science Foundation of Shandong Province,China(ZR2020MC096,ZR2021ZD31,and ZR2020MC151)the Agricultural Variety Improvement Project of Shandong Province,China(2021LZGC013 and 2022LZGC002).
文摘Bread wheat(Triticum aestivum)is a staple food crop worldwide.The genetic dissection of important nutrient traits is essential for the biofortification of wheat to meet the nutritional needs of the world's growing population.Here,45,298 single-nucleotide polymorphisms(SNPs)from 55K chip arrays were used to genotype a panel of 768 wheat cultivars,and a total of 154 quantitative trait loci(QTLs)were detected for eight traits under three environments by genome-wide association study(GWAS).Three QTLs(qMn-3B.1,qFe-3B.4,and qSe-3B.1/qFe-3B.6)detected repeatedly under different environments or traits were subjected to subsequent analyses based on linkage disequilibrium decay and the P-values of significant SNPs.Significant SNPs in the three QTL regions formed six haplotypes for qMn-3B.1,three haplotypes for qFe-3B.4,and three haplotypes for qSe-3B.1/qFe-3B.6.Phenotypic analysis revealed significant differences among haplotypes.These results indicated that the concentrations of several nutrient elements have been modified during the domestication of landraces to modern wheat.Based on the QTL regions,we identified 15 high-confidence genes,eight of which were stably expressed in different tissues and/or developmental stages.TraesCS3B02G046100 in qMn-3B.1 and TraesCS3B02G199500 in qSe-3B.1/qFe-3B.6 were both inferred to interact with metal ions according to the Gene Ontology(GO)analysis.TraesCS3B02G199000,which belongs to qSe-3B.1/qFe-3B.6,was determined to be a member of the WRKY gene family.Overall,this study provides several reliable QTLs that may significantly affect the concentrations of nutrient elements in wheat grain,and this information will facilitate the breeding of wheat cultivars with improved grain properties.
文摘BACKGROUND Nutrition recommendations in patients with type 2 diabetes mellitus(T2DM)are to consume rye or integral bread instead of white bread.A positive effect on glucoregulation has been achieved by enriching food with various biologically active substances of herbal origin,so we formulated an herbal mixture that can be used as a supplement for a special type of bread(STB)to achieve better effects on postprandial glucose and insulin levels in patients with T2DM.AIM To compare organoleptic characteristics and effects of two types of bread on postprandial glucose and insulin levels in T2DM patients.METHODS This trial included 97 patients with T2DM.A parallel group of 16 healthy subjects was also investigated.All participants were given 50 g of rye bread and the same amount of a STB with an herbal mixture on 2 consecutive days.Postprandial blood glucose and insulin levels were compared at the 30^(th),60^(th),90^(th) and 120th min.A questionnaire was used for subjective estimation of the organoleptic and satiety features of the two types of bread.RESULTS Compared to patients who consumed rye bread,significantly lower postprandial blood glucose and insulin concentrations were found in T2DM patients who consumed STB.No relevant differences were found among the healthy subjects.Subjectively estimated organoleptic and satiety characteristics are better for STB than for rye bread.CONCLUSION STB have better effects than rye bread on postprandial glucoregulation in T2DM patients.Subjectively estimated organoleptic and satiety characteristics are better for STB than for rye bread.Therefore,STB can be recommended for nutrition in T2DM patients.
文摘Objective:Seawater leakage in Al-Jabal Al-Akhdar East Libya's coastal areas is one of the most biggest obstacles to farmers obtaining a highly productive crop.As a result,the experiment was conducted in a laboratory to find out the impact of irrigation with seawater on the salt tolerance of Acsad Bread wheat genotypes.Method:Ten genotypes(1398,1492,1514,1522,1524,1536,1538,1544,1550,and 1562),obtained from the Arab Center for the Studies of Arid Zones and Dry Lands Acsad,were used in the study,10 seeds of each genotype with three repetitions were germinated under four seawater concentrations(10,20,30 and 40%).Results:The results showed that there were highly significant(P≤0.05)differences in the genotypes’response to all salinity concentrations,Which led to decreasing germination percentage,delaying the average germination time,and decreasing radical/plumule length and seedling fresh/dry weight compared with a control.As noted genotypes(1524,1522 and 1514)were able to germinate in all concentrations of seawater,and gave the best average for all the studied traits.Also,the study indicated that a concentration of seawater of 40%was the most toxic for all wheat genotypes.The results of this study categorize the wheat genotypes into tolerant genotypes(1524,1522 and 1514),moderate tolerant(1492,1536),and sensitive(1398,1538,1544,1550 and 1562).Conclusion:The results concluded that the possibility of wheat crops agriculture into tolerant in Libyan coastal locations in which seawater concentration did not exceed 30%.
基金the support from Scientific Research Project of Wuhan Polytechnic University(532100308).
文摘Staling is an important issue that Chinese steamed bread(CSB)may encounter during storage,which significantly affects their taste,flavor,and nutritional value.The monitoring technology for rapid aging is particularly important to effectively control the aging process of CSB,reduce quality deterioration,and promote the industrial production of CSB.Raman spectroscopy has been widely used in the study of food structure and properties due to its non-destructive and high-sensitivity characteristics,particularly demonstrating unique advantages in the analysis of starch structure.This study explored the possibility of analyzing the staling of CSB using Raman spectroscopy based on hardness and moisture content.Analysis of the correlation between the hardness of CSB and the full width at half maximum(FWHM)at 480 cm^(−1)during storage was conducted,and a significant positive correlation between them was found,with R^(2)above 0.8.Besides,nine characteristic peaks of CSB samples related to starch were selected for analysis.As the moisture content of CSB decreased,the peak intensities and areas of showed an upward trend during storage,with the best correlation coefficient above 0.8 revealed by linear regression analysis.Therefore,Raman spectra could be used as a potential method for the fast prediction of CSB staling.
文摘This study makes it possible to establish baking flours of nutritional quality and technologically acceptable following the increase in their rheological parameters due to the insertion of gluten flour. The composite flours were obtained using the Philips mixer type (model HR2811). The nutritional qualities of the formulated flours were determined by the Kjeldahl, AOAC 985-29, UV-VIS spectrophotometry (DR 5000;HACH and LANGE, France) and Soxhlet gravimetric methods. The compounds obtained are respectively: Protein, carbohydrate, lipid, micronutrient and vitamin contents. Monitoring the analysis of functional properties (water and oil absorption capacity) as well as baking value.
基金This research has been financially supported by National Key R&D Program of China(2019YFD1002300)Open Project Program of Grain,Oil and Food Engineering Technology Research Center of the State Grain and Reserves Administration/Key Laboratory of Henan Province,Henan University of Technology(GO202216)+1 种基金Doctor Foundation of Henan University of Technology(2019BS057)Cultivation Programme for Young Backbone Teachers in Henan University of Technology for financial support(21420187).
文摘Chestnut is a high nutritional value food that has been widely used as a tonic in traditional Chinese medicine.As an emerging functional food ingredient,Chinese chestnuts are rich in a range of bioactive nutrients such as starch,dietary fiber,fat,protein,trace metal element and vitamins A,B,C,D and other nutrients.In our study,Chinese chestnut powder(CCP)were added into bread formulation at 2%-6%levels(based on flour weight)to produce fresh bread with enhanced anti-staling characteristics and starch digestion inhibitory ability.The texture properties,retrogradation enthalpy,water distribution,and estimated glycemic index(eGI)of wheat bread containing CCP as a functional additive were also investigated.The results showed that incorporation of CCP apparently affected bread texture,resulting in increased hardness,as well as decreased the specific volume of wheat bread.These influences were generally proportional to the amount of CCP used.It was found that adding too much CCP resulted in a dark red color,showing increased significantly higher total color difference(ΔE)and L values.Conversely,addition of CCP significantly reduced starch digestion rate and digestion extent in bread,and the reduction degree was positively related to the amount of CCP applied.The greatest reduction in eGI value from 79.40(control)to 75.02(6%CPP bread)was observed.Meanwhile,the content of resistant starch of 6%CPP bread was about 1.36 times higher than that of control bread.CCP also reduced crumb water loss and drove the water shift from the bound to the mobile state after stored for 7 days.The retrogradation enthalpy analyses further confirmed that CCP inhibited starch retrogradation and recrystallization.These results suggested that Chinese chestnut powder could be incorporated into fresh bread to provide health functions,such as lowering potential glycaemic response and improving anti-staling characteristics of bread.
文摘The authors regret to report some missing information in the authorship and associated changes of the paper.On page 1512,the author information reads:“Caiyun Liu a,Wei Guo a,Yang Wang b,Bisheng Fu a,Jaroslav Dolezel c,Ying Liu a,Wenling Zhai a,Mahmoud Said c,d,István Molnár c,d,e,Katerina Holušovác,Ruiqi Zhang b,*,Jizhong Wu a,f,g,*”.It should be changed to“Caiyun Liu a,1,Wei Guo a,1,Yang Wang b,Bisheng Fu a,Jaroslav Dolezel c,Ying Liu a,Wenling Zhai a,Mahmoud Said c,d,István Molnár c,d,e,Katerina Holušovác,Ruiqi Zhang b,*,Jizhong Wu a,f,g,*”.On page 1512 in the footnote,the following sentence should be added below the corresponding authors’information:1 These authors contributed equally to this work.The correction has been updated above.The authors would like to apologize for any inconvenience caused.
基金supported by the Program of Shanghai Tobacco Group Open Fund (20210105).
文摘The issue of plastic pollution has attracted widespread social attention.Gelatin is valued as a degradable bio-based material,especially as an edible active packaging material.However,the commonly used solution-casting filmforming technology limits the mass production of gelatin films.In order to improve the production efficiency and enhance the commercial value of gelatin films,in this study,fish gelatin(FG)particles were successfully blended with essential oils(EOs)to prepare active films by melt extrusion technique,a common method for commercial plastics,and applied to bread preservation.FG and EOs showed good compatibility with each other.The elongation at break was enhanced in all samples of films containing EOs.The addition of EOs weakened the oxygen barrier properties of the FG films.The gelatin films containing clove EO showed the highest DPPH radical scavenging rate of 39.38%.The films containing oregano EO showed the highest antibacterial activity,with 98.84%and 99.86% against S.aureus and E.coli,respectively.The bread preservation results showed a slower microbial growth rate in the samples preserved by the active films.The bread samples preserved in commercial PE film showed mold on day 3,and the bread samples preserved in active gelatin film showed mold visible to the naked eye by day 7.This study demonstrates the potential of gelatin-based activated films for commercial application in baked goods preservation.
基金supported by the Young Elite Scientists Sponsorship Program by CAST(2022QNRC001)National Key Research and Development Plan Project(2022YFD2301401)+4 种基金Outstanding Youth Science Fund Project of Natural Science Foundation of Jiangsu Province(BK20211576)the Central Government Guides Local Funds(ZYYD2023A13)Key Technology Research and Development Program of Hainan Province(ZDYF2022XDNY233)the China Postdoctoral Science Foundation(2018 M630564)a project funded by the Priority Academic Program Development(PAPD)of Jiangsu Higher Education Institutions.
文摘Germination,a powerful biofortification technique,holds immense potential in bolstering the micronutrient profile of essential staple grains,thereby paving the way for optimal nutritional enhancement.The primary goal of this study was to improve the technological functionality of germinated wheat flour by incorporating pentosanase(Pn)and glucose oxidase(Gox)enzymes,with particular emphasis on the evolutionary changes in its components.The inclusion of Gox did not produce any substantial impact on the volumetric characteristics of the steamed bread.The incorporation of Pn and Gox has been seen to enhance the overall excellence of steamed bread by optimizing loaf volume and textural characteristics while also improving the thermal stability of the dough.The existence of two endothermic peaks could be attributed to bound water or alterations in the granules within the starch crystallization region.Adding Pn and Gox reduced and increased the formation and stability time of the dough,respectively.A certain ratio was employed to assess alternations in the crystallinity of starch granules over a limited range.After steaming,a significant decrease in IR1047/1022 was observed,indicating that the elevated temperature partially disrupted the internal starch crystal structure,leading to a gelatinization reaction with water.The ratio of tensile resistance(R)and elongation(E)of dough increased significantly compared to the control.The results obtained from this study indicate that the simultaneous inclusion of enzymes(Pn+Gox)holds significant promise for expanding the technological functionality of germinated wheat flour dough and improving the quality attributes of steamed bread.
文摘The effect of incorporation of defatted flour from seeds of sweet orange on wheat flour bread quality was investigated.Seeds were removed from the fruits of sweet orange,sun dried,milled and defatted with ethanol.The defatted orange seed flour was incorporated into wheat flour at 5,10,and 15%.The chemical composition and physicochemical properties of the composite flours were assessed.The composite flours were used to prepare breads and the nutrients composition,antioxidant,physical and sensory qualities of the breads were determined.The water absorption,oil absorption,emulsifying and swelling capacities increased while foaming capacity and bulk density decreased with the addition of the defatted seed flour in the blends.The addition of defatted seed flour increased significantly(P<0.05)the ash(1.98%–3.05%),crude fiber(1.26%–2.98%)and carbohydrate(47.78%–55.90%)contents but decreased the moisture(23.59%–20.37%),crude fat(12.43%–8.98%)and protein(12.96%–8.72%)contents of the breads.The calcium,sodium,iron and zinc contents improved but phosphorus and potassium levels decreased with the incorporation of the defatted seed flour.The phenols,flavonoids,alkaloids,saponins,and carotenoids contents varied from 85.03–18.59 mg/100g,3.11–7.83 mg/100g,7.30–12.06 mg/100g,1.87–2.06 mg/100g,and 5.46–15.84 mg/100g,respectively.The loaf volume,specific volume and oven spring of breads decreased while loaf weight increased with the incorporation of defatted flour.The antioxidant activities of breads containing 15%defatted seed flour increased over that the 100%wheat bread.The ratings for the sensory attributes decreased with the addition of defatted seed flour in the breads.However,the ratings for the sensory qualities of breads containing 5 and 10%defatted seed flours did not differ significantly(P<0.05)from those of the 100%wheat bread.It is concluded that defatted flour from seeds of sweet orange fruits could be used to substitute 10%wheat flour in bread without adversely affecting the qualities of the breads.
基金Supported by Earmarked Fund for Modern Agro-industry Technology Research System(CARS-03)Special Fund for Seed Industry Construction from Taishan Scholar FoundationNational Science and Technology Major Project for Genetic Improvement of Crop Quality~~
文摘In this study, 13 strong-gluten wheat varieties screened by the Key Project of Modern Agricultural Industry Technology System "Study on Industrial Technology for Strong-gluten Wheat from Lime Concretion Black Soil Area in the Huanghuai Wheat Region" were used as experimental materials to investigate their bread-making quality, noodle-making quality and other related characteristics. The results showed that more than half of the wheat varieties had better bread-making quality; the bread made from wheat with longer dough mixing time than 3.0 min had better texture, lighter color, and better taste. All these 13 strong-gluten wheat varieties showed good noodle-making quality in color, appearance, smoothness and taste; the differences between varieties were mainly found in palatability and viscoelasticity. Jimai 20, Xinong 979, Zhengmai 7698, Ji'nan 17 and Zhengmai 9023 exhibited excellent bread-making quality; Zhengmai 366, Jimai 20 and Xinong 979 displayed excellent noodle-making quality. Fresh dough sheets made from Zhengmai 366, Jimai 20 and Xinong 979 exhibited slight color variation within 24 h and high peak starch paste viscosity; dry and cooked noodles made from Zhengmai 366, Jimai 20 and Xinong 979 had good quality.
文摘Have you ever,at any onetime,had the feeling that life isbad,real bad,and you wish youwere in another situation?Youfind life make things difficult foryou,work sucks,life sucks,everything seems to go wrong...Read the following story...it may change your views aboutlife: