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Formulation of Infant Flours Based on Fonio Enriched with Bambara Groundnut Anacardium (Cashew) and African Locust Bean Fruit Pulp
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作者 Lawrence Roselynn Kra KouaKou Pierre Martial Thierry Akely +1 位作者 Albarin Grodji Gbogouri Françoise Kouame 《Agricultural Sciences》 2024年第9期1071-1088,共18页
Infant malnutrition is a significant issue in Côte d’Ivoire, and this study aims to address it by formulating infant flours using local ingredients. Fermentation, germination, and malting methods were used to en... Infant malnutrition is a significant issue in Côte d’Ivoire, and this study aims to address it by formulating infant flours using local ingredients. Fermentation, germination, and malting methods were used to enhance the quality of six formulated flours, all based on Fonio and supplemented with Bambara groundnut, African locust bean fruit pulp, and cashew kernels. Results showed that Fonio had the highest carbohydrate content, while Bambara groundnut and Cashew kernels were rich in protein and lipid content. African locust bean fruit pulp was rich in fiber and Vitamin C, with a high β-carotene value. The cashew kernel had the highest energy value. Regarding mineral composition, African locust bean fruit pulp had the highest potassium content, while Bambara groundnut and African locust bean fruit pulp were rich in sodium. Cashew kernel and Fonio had higher iron and calcium content. Bambara groundnut had a higher zinc content, while cashew kernel had a higher magnesium content. The formulated flours made from fermented Fonio grains and enriched with Bambara groundnut, African locust bean fruit pulp, and cashew kernel had varying protein, fiber, carbohydrate, ash, and fat contents. The flour formulated with sprouted Fonio and enriched with the same ingredients had higher protein content and energy value than the other fermented seed-based flours. The mixed flours produced with fermented seeds and the flour produced from sprouted seeds met international standards. Overall, these findings offer valuable insights into the nutritional composition of the formulated flours and their potential to combat infant malnutrition in Côte d’Ivoire. 展开更多
关键词 Infant Flours FORMULATION Fonio Groundnut African Locust Bean fruit pulp
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Reducing Effect of Parkia biglobosa (Jacq.) R. Br. ex G. Don Fruit Pulp on Food Intake in Healthy NMRI Mice
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作者 Emmanuel Zongo Benjamin Kouliga Koama +10 位作者 Yaya Gnanou Sami Eric Kam Christian Ouedraogo Mathieu Nitiema Eliasse Zongo Hadidjatou Belem Dramane Paré Windmi Kagambèga Ollo Da Georges Anicet Ouedraogo Roland Nâg-Tiero Meda 《Pharmacology & Pharmacy》 2024年第10期327-346,共20页
Obesity is a chronic condition characterised by excess body fat that leads to increased body weight. One of the most effective ways to treat obesity is to use appetite suppressants to reduce food intake. This study ai... Obesity is a chronic condition characterised by excess body fat that leads to increased body weight. One of the most effective ways to treat obesity is to use appetite suppressants to reduce food intake. This study aimed to evaluate in vivo reduction of food intake and weight gain caused by Parkia biglobosa (Pb) fruit pulp. Twenty-four healthy NMRI mice divided into four groups were used for the experiment. Group 1, considered the negative control, received distilled water. Groups 2, 3, and 4 were administered daily with 100, 250 and 500 mg/kg body weight of Pb fruit pulp powder suspension, respectively. The reduction in food intake was assessed in two phases: acute food intake for one day (24 h) and long-term food intake for seven weeks. Nutrient parameters and phenolic compounds in Pb fruit pulp were quantified. The results showed that Pb fruit pulp had a significant effect on reducing acute food intake. At a dose of 250 mg/kg, Pb had the best activity in reducing acute food intake, with an overall reduction rate of approximately 47.98% ± 1.17% compared to the control. Repeated daily administration inhibited food intake with all three doses for 13 days compared to control. Food intake was significantly decreased for up to 31 days by taking a 100 mg/kg dose of Pb (p = 0.0174). Weight gain was significantly lower (p = 0.0003) in mice treated with 100 mg/kg Pb than in controls at the end of 7 weeks. According to the nutritional composition study, Pb fruit pulp contains an abundance of total carbohydrates (68.81% ± 0.32%) and crude fiber (14.35% ± 0.21%). This study demonstrated that Pb fruit pulp effectively reduces food intake in healthy mice. Pb pulp’s richness in crude fiber and phenolic compounds makes it a potential aid in managing obesity. 展开更多
关键词 Appetite-Suppressant Food Intake Parkia biglobosa fruit pulp
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Effect of incorporation of raphia palm fruit pulp powder on the physicochemical, functional and sensory properties of biscuits 被引量:1
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作者 Tatiana Munghang Tata Thierry Noumo-Ngangmou Aba Richard Ejoh 《Food and Health》 2023年第1期6-10,共5页
Background:Raphia fruit pulp is a good source of phytochemicals and some micronutrients and is locally consumed as a snack.The aim of this study was to valorize raphia pulp in biscuits production by partially substitu... Background:Raphia fruit pulp is a good source of phytochemicals and some micronutrients and is locally consumed as a snack.The aim of this study was to valorize raphia pulp in biscuits production by partially substituting wheat flour in different proportions with flour obtained from the pulp of the raphia fruit.Methods:Ripe raphia(Raphia hookeri)fruits were purchased from local farms,thoroughly washed and the pulps extracted using a stainless-steel knife.These pulps were dried at 60℃for 12 h and grounded into flour.Wheat flour was substituted with the raphia pulp flour(RF)in five different proportions(10,20,30,35,and 40%).The functional properties and nutrient profile of the raphia flour and the biscuits obtained from these composite flours were evaluated.Sensory evaluation of the biscuits was also carried out using a nine-point hedonic scale.Results:The RF has a high-water absorption capacity WAC(680%)and oil absorption capacity OAC(560%)favoring its use in pastry processes.The RF is rich in polyphenols 435.0±20(μg/100g),saponins(155±5 mg/100g)and potassium(922±20 mg/100g).The incorporation of the RF in biscuits significantly affect the chemical composition.The total polyphenols increased from 182±10μg/100g in the sample containing 10%of RF to 342±17μg/100g in the sample containing 40%of RF.Fibers increased from 8.75±0.03 mg/100g in the sample with 10%of RF to 10.08±0.27 mg/100g in the 40%substituted biscuit.Saponins increased from 69.9±0.01 mg/100g in the sample with 10%of RF to 90.22±0.01 mg/100g in the sample with 40%RF and potassium increased from 434.2±10 mg/100g in the sample with 10%of RF to 647.6±5 mg/100g in the sample with 40%of RF.Biscuit samples made with composite flour containing 20%of RF was the most accepted.Conclusion:RF can be used as a raw material to replace 20%of wheat flour in biscuit formulations and improve its nutritional and sensory properties. 展开更多
关键词 composite flour Raphia palm fruit pulp BISCUITS PHYTOCHEMICALS ACCEPTABILITY
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An effective method and its modifications for isolation of high-quality total RNA from fruit pulps 被引量:1
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作者 JIA Hai-feng ZHU Xiao-qin JIN Xiao-lei SHEN Yuan-yue 《Journal of Agricultural Science and Technology》 2008年第1期58-62,共5页
An effective method for isolation of total RNA from pulps of mainly deciduous fruit trees was discussed in this paper. Here we shown that total RNA was successfully isolated from pulps of apple, peach and strawberry, ... An effective method for isolation of total RNA from pulps of mainly deciduous fruit trees was discussed in this paper. Here we shown that total RNA was successfully isolated from pulps of apple, peach and strawberry, but not grape berry via the effective CTAB method modified by ZENG, et al. However, total RNA was isolated from grape berry according to ZENG's protocols with a modification including 16% of β-Mercatoethanol and 3% of PVP in extraction buffer, 1/3 (V/V) of 5mol/L potassium acetate (KAC PH4.8) in supernatant. The detection of the isolated total RNA above using ultraviolet spectrophoto-metry, electrophoresis, reverse transcription and RT-PCR shown that the CTAB and its modifications is a preferred method for isolation of high-quality total RNA from fruit pulps. 展开更多
关键词 fruit fruit pulps total RNA CTAB method
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Effects of Wet Superfine Grinding on Polyphenols and Antioxidant Activities of Whole Fruit Pulp of Navel Orange
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作者 PAN Lang HU Xiao +3 位作者 DING Sheng-hua LIANG Zeng-enni CHANG Xia SHAN Yang 《Agricultural Science & Technology》 CAS 2019年第4期13-19,共7页
The navel orange were cleaned and pulverized by a wet superfine grinding and a broken wall cooking machine,then the navel orange whole fruit pulp were obtained by wet superfine grinding once,wet superfine grinding twi... The navel orange were cleaned and pulverized by a wet superfine grinding and a broken wall cooking machine,then the navel orange whole fruit pulp were obtained by wet superfine grinding once,wet superfine grinding twice,and broken wall cooking machine processing.The particle size distribution,free polyphenols,bound polyphenols and antioxidant activity of whole fruit pulp prepared by the three kinds of pulverization methods were discussed.The results showed that the particle size distribution of the whole fruit pulp by wet superfine grinding was more concentrated compared with the broken-wall cooking machine processing,and the total phenols dissolution rate of the navel orange whole pulp was increased by 6.9%,and the total flavonoid dissolution rate was increased by 13.5%.The results also suggested that wet superfine grinding twice could improve 1,1-diphenyl-2-picrylhydrazyl(DPPH)free radical scavenging activity of polyphenols in the whole fruit pulp,wet superfine grinding once and wet superfine grinding twice also could obviously enhance the reducing power and iron reduction ability of polyphenols in the whole fruit pulp.In conclusion,wet superfine grinding could increase both the polyphenol content and antioxidant activity of navel orange whole fruit pulp,it can be used as a pretreatment processing method for preparing navel orange whole fruit pulp. 展开更多
关键词 Navel orange Superfine grinding POLYPHENOLS Antioxidant activities Whole fruit pulp
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Nutritional and Sensory Evaluation of Novel Ice Cream Products Formulated From Kunu-Zaki Fortified with Fruit Pulp
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作者 Ogo Ogo Bai Emmanuella +1 位作者 Efiong Esienanwan Enenche Daniel 《Food and Nutrition Sciences》 2021年第5期439-451,共13页
Consumption of ice cream produced from dairy products has been reportedly associated with health hazards. To circumvent this, this study was undertaken to formulate plant-based ice cream using kunu-zaki and soymilk (a... Consumption of ice cream produced from dairy products has been reportedly associated with health hazards. To circumvent this, this study was undertaken to formulate plant-based ice cream using kunu-zaki and soymilk (as substi<span style="font-family:Verdana;">tutes for dairy milk) fortified with mango, banana and avocado. Standard</span><span style="font-family:Verdana;"> method for the preparation of ice cream was modified to formulate three variants of kunu-zaki ice cream designated as B (40% kunu-zaki, 40% banana pulp and 20% </span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;">s</span></span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;">oymilk);C (40% </span></span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;">k</span></span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;">unu-</span></span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;">z</span></span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;">aki, 40% mango pulp and 20% soymilk);D (40% kunu-</span></span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;">z</span></span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;">aki, 40% </span></span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;">a</span></span></span><span><span><span style="font-family:;" "=""><span style="font-family:Verdana;">vocado pulp and 20% soymilk), while control </span><span style="font-family:Verdana;">sample A was commercial dairy-based ice cream. Analyses of proximate, </span><span style="font-family:Verdana;">min</span><span style="font-family:Verdana;">eral and vitamin compositions were carried out on the samples following</span><span style="font-family:Verdana;"> stan</span><span style="font-family:Verdana;">dard procedures. The results showed lower fat content in all the formulated</span><span style="font-family:Verdana;"> ice cream samples, which ranged from 0.60 - 0.96 g/100g compared to the con</span><span style="font-family:Verdana;">trol sample with fat content of 8.15 g/100g. Similarly, the formulated ice </span><span style="font-family:Verdana;">cream samples have significant protein content with sample D recording the highest value of 3.67 g/100g compared to control sample. Samples B and C </span><span><span style="font-family:Verdana;">contained higher vitamin C, vitamin B</span><sub><span style="font-family:Verdana;">6</span></sub><span style="font-family:Verdana;">, calcium and sodium content in</span></span><span style="font-family:Verdana;"> comparison to sample A. Sensory evaluation showed that samples B and sample C were the </span><span style="font-family:Verdana;">most acceptable ice cream variants in comparison to the control sample.</span><span style="font-family:Verdana;"> These </span><span style="font-family:Verdana;">findings lend credence to the strategy of value addition for providing heal</span><span style="font-family:Verdana;">thier food alternatives while contributing to the reduction in post-harvest losses of fruits utilized as fortificants.</span></span></span></span> 展开更多
关键词 Kunu-Zaki Ice Cream Value Addition SOYMILK Nutritional Value fruit pulp
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基于超高压技术的响应面优化猕猴桃果肉饮料
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作者 卢亚婷 高欣羽 +1 位作者 王凌云 罗仓学 《安徽农业科学》 CAS 2024年第9期135-138,169,共5页
研究超高压处理条件下的猕猴桃果肉饮料配比,以强化分层率为指标,通过单因素试验和响应面法对配比进行优化,结果表明:猕猴桃原浆添加量47%,蔗糖添加量12%,增稠剂添加量0.14%。在超高压技术处理后,产品的强化分层率达到47%。对优化后的... 研究超高压处理条件下的猕猴桃果肉饮料配比,以强化分层率为指标,通过单因素试验和响应面法对配比进行优化,结果表明:猕猴桃原浆添加量47%,蔗糖添加量12%,增稠剂添加量0.14%。在超高压技术处理后,产品的强化分层率达到47%。对优化后的产品测定色泽和粒径,结果显示L为38,产品色泽明亮;ΔE均小于2,产品色泽均一;颗粒的体积平均粒径D[4,3]为214μm,稳定性好。 展开更多
关键词 超高压处理 猕猴桃 果肉饮料 响应面优化 稳定性
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钙果复合果浆的功能成分及其减肥降脂作用
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作者 宫红伟 张惠玲 +3 位作者 江冠宇 孟芳 潘思弋 田晓菊 《中国食品学报》 EI CAS CSCD 北大核心 2024年第4期32-42,共11页
目的:枸杞、沙棘和钙果是我国北方特有的食药同源食物,为了深层次开发3种果实的营养成分,以钙果原浆(纯度100%)、沙棘原浆(纯度100%)、枸杞原浆(纯度100%)3种原料,按照体积比2∶1.5∶1调配混合,制成一款酸甜可口的钙果复合果浆,探究其... 目的:枸杞、沙棘和钙果是我国北方特有的食药同源食物,为了深层次开发3种果实的营养成分,以钙果原浆(纯度100%)、沙棘原浆(纯度100%)、枸杞原浆(纯度100%)3种原料,按照体积比2∶1.5∶1调配混合,制成一款酸甜可口的钙果复合果浆,探究其功能成分及减肥作用。方法:采用电感耦合等离子体质谱法测定复合果浆的微量元素,采用高相液相色谱法测定维生素和类胡萝卜素,液相色谱-质谱联用法测定多酚类化合物和有机酸类化合物。建立肥胖小鼠模型,探究复合果浆对肥胖小鼠的减肥作用。结果表明,复合果浆富含多种功能成分,其中,钙含量为(73.671±4.918)μg/L,维生素B_(2)含量为(503.333±2.054)ng/mg,芦丁含量为(8.345±0.091)μg/mL。与模型组相比,剂量组经复合果浆干预后,小鼠体质量明显下降,甘油三酯含量显著降低(P<0.05)。结论:复合果浆对肥胖小鼠具有显著改善作用,本研究为钙果复合果浆的营养保健作用提供了数据支撑,并为预防肥胖提供了一种新的营养干预方法。 展开更多
关键词 钙果 复合果浆 功能成分 肥胖 减肥作用
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旱地元帅系苹果果肉质地发绵与果实品质及酶活性相关性研究
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作者 徐紫兆 刘小勇 +2 位作者 任静 张帆 陈佰鸿 《甘肃农业大学学报》 CAS CSCD 北大核心 2024年第4期121-129,共9页
【目的】探究苹果果实发绵与品质、酶活性变化的相关关系具有重要意义。【方法】以元帅系品种天汪1号为试材,测定分析其果实不同发育期品质、酶活性变化以及与果肉发绵的相关性,探明影响果肉发绵的关键酶和品质指标。【结果】随着果实... 【目的】探究苹果果实发绵与品质、酶活性变化的相关关系具有重要意义。【方法】以元帅系品种天汪1号为试材,测定分析其果实不同发育期品质、酶活性变化以及与果肉发绵的相关性,探明影响果肉发绵的关键酶和品质指标。【结果】随着果实成熟度的增加,果肉硬度、含水量、可滴定酸含量显著降低,而可溶性糖含量显著增加;可溶性固形物、VC含量呈先升后降的变化特征。果实中丙二醛(MDA)、多聚半乳糖醛酸酶(PG)、淀粉酶(AM)活性随果实发育进程呈“升-降-升”变化,β-半乳糖苷酶(β-Gal)和纤维素酶(Cx)呈“升-降”趋势,而果胶甲酯酶(PME)显著上升。苹果果实冷藏(4℃)条件下,随贮藏期延长,果实可溶性糖含量显著增高;而水分、可溶性固形物、可滴定酸、VC含量均显著下降,果肉硬度冷藏60 d后显著下降。果实中PG、AM、PME活性随贮藏期显著上升,而Cx活性显著下降,MDA和β-Gal活性变化不大。果实硬度和水分与PME、PG和AM均表现为极显著负相关,与β-Gal为极显著或显著负相关,MDA为显著负相关,而与Cx呈极显著或显著正相关。影响果实硬度、含水量的酶活性排序分别为:PME>AM>PG>Cx>β-Gal>MDA与AM>PME>PG>Cx>β-Gal>MDA。果肉硬度和水分均与可溶性糖呈极显著负相关,而与VC、可滴定酸呈极显著或显著正相关。【结论】综合分析认为,影响元帅系苹果果实发绵的关键酶为PME、PG和AM;影响果实发绵的品质指标除果肉硬度和水分外,VC、可溶性糖和可滴定酸也影响果实发绵的程度。 展开更多
关键词 果肉发绵 酶活性 果实品质 花牛苹果
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百香果中农药残留及膳食摄入风险评估
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作者 林青 梁晓涵 +2 位作者 王丹 杨兹伟 伍立锋 《中国药业》 2024年第3期80-84,共5页
目的评估百香果中农药残留及膳食摄入风险。方法采用超高效液相色谱串联质谱法和气相色谱串联质谱法测定6个地区采样百香果整果、果皮和果肉中的农药残留量,比较不同农药的残留分布差异。采用目标风险系数(THQ)评估单一农药残留的膳食... 目的评估百香果中农药残留及膳食摄入风险。方法采用超高效液相色谱串联质谱法和气相色谱串联质谱法测定6个地区采样百香果整果、果皮和果肉中的农药残留量,比较不同农药的残留分布差异。采用目标风险系数(THQ)评估单一农药残留的膳食摄入风险,采用危害指数(HI)评价农药多残留联合暴露风险。结果共检出农药37种,其中杀虫剂19种,杀菌剂15种,杀螨剂2种,植物生长调节剂1种。整果、果皮和果肉样品中农药检出率分别为83.78%,94.59%,62.16%,分别检出残留农药33种、35种、23种。单一农药残留的THQ值均小于1,农药多残留联合暴露风险的HI值为0.8847。结论6个地区的百香果中均存在农药残留,但总体风险较低,百香果的慢性膳食摄入风险较小,暴露人群无明显健康风险。 展开更多
关键词 百香果 果肉 果皮 整果 农药残留 膳食摄入风险
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青梅酒发酵关键技术研究
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作者 殷小燕 杨高明 《食品安全导刊》 2024年第21期176-178,182,共4页
本文针对青梅酒发酵过程中存在的果肉与酒液分离效率低、糖化不完全、杂菌污染和风味物质损失等关键技术问题,提出了优化果肉破碎与压榨工艺、采用高效复合糖化酶、加强无菌操作流程控制以及优选风味代谢工程菌株等一系列解决方案。通... 本文针对青梅酒发酵过程中存在的果肉与酒液分离效率低、糖化不完全、杂菌污染和风味物质损失等关键技术问题,提出了优化果肉破碎与压榨工艺、采用高效复合糖化酶、加强无菌操作流程控制以及优选风味代谢工程菌株等一系列解决方案。通过生物技术与工程优化手段的集成创新,提升青梅酒发酵过程的转化率、纯度与风味品质,为推进青梅酒产业的健康可持续发展奠定坚实基础。 展开更多
关键词 青梅酒 发酵 果肉分离
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Development of Value Added Dahi by Incorporating Cereal and Fruits
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《Journal of Food Science and Engineering》 2011年第5期379-385,共7页
A study was conducted for the development of value added dahi by incorporating fruit pulps, cereal flour and whey proteins concentrate (WHC) to increase the nutritional and sensory quality. Value added dahi (VAD) ... A study was conducted for the development of value added dahi by incorporating fruit pulps, cereal flour and whey proteins concentrate (WHC) to increase the nutritional and sensory quality. Value added dahi (VAD) was prepared by using skim milk, oat flour and WPC. VAD with 1% oat flour, 1% whey protein concentrate was found to be highly acceptable by sensory evaluation and curd tension study. Statistically there was a highly significant difference (P 〈 0.05) between skim milk dahi (control) and VAD VAD scored highest sensory score for all the sensory parameters studied. Curd tension found to be markedly increased in value added dahi with increased firmness of the product. Value added stirred dahi was prepared with oat flour, whey protein concentrate, papaya, fig pulps and sugar with different combination in order to assess the suitable level of addition with maximum acceptability. Value added stirred dahi (VADl) with 1% oat flour, 1% WPC, 5% papaya pulp, 4% sugar combination was found to be acceptable among the other combinations. Storage studies evaluated by sensory score revealed that the value added dahi can be stored up to 7 days at 5 ^(2. A significant increase in acidity and decrease in pH were noticed in the VAD1 during the storage period but within the permissible limit. Statistical analysis revealed no significance difference (P 〉 0.05) in total count and yeast and mould count between VAD0 (control) and VADl during storage 5 ~C. Total yield of value added dahi increased along with cost of production due to increased cost of ingredients (fruits and whey protein concentrate) used for value addition. 展开更多
关键词 Skim milk oat flour whey protein concentrate fruit pulp curd tension.
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带皮咖啡果肉发酵型果酒酿造工艺研究
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作者 杨正宏 段炳意 《食品安全导刊》 2024年第2期158-162,共5页
本研究以带皮咖啡果肉为原料酿造果酒,通过单因素试验,确定果酒酿造的最佳工艺。结果表明,最佳前处理工艺参数为果胶酶添加量0.05%,酶解温度40℃,酶解时间4.0 h;最佳发酵工艺参数是BV818酵母添加量0.50%,初始糖度23%,发酵温度25℃,发酵... 本研究以带皮咖啡果肉为原料酿造果酒,通过单因素试验,确定果酒酿造的最佳工艺。结果表明,最佳前处理工艺参数为果胶酶添加量0.05%,酶解温度40℃,酶解时间4.0 h;最佳发酵工艺参数是BV818酵母添加量0.50%,初始糖度23%,发酵温度25℃,发酵时间6 d或7 d。 展开更多
关键词 带皮咖啡果肉 酶解 发酵 果酒
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Secondary Metabolites and Antioxidant Activity of Different Parts of the Baobab Fruit (<i>Adansonia digitata</i>L.)
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作者 Edouard Mbarick Ndiaye Y. El Idrissi Yousra +4 位作者 Sow Alioune Nicolas Cyrille Ayessou Hicham Harhar Mady Cisse Mohamed Tabyaoui 《Food and Nutrition Sciences》 2021年第7期732-741,共10页
The objective of this study was to determine the polyphenol, flavonoid and tannin content and the antioxidant power of methanolic extracts from the different parts of the Senegalese baobab fruit. Phytochemical screeni... The objective of this study was to determine the polyphenol, flavonoid and tannin content and the antioxidant power of methanolic extracts from the different parts of the Senegalese baobab fruit. Phytochemical screening revealed the presence of saponosides, tannins, alkaloids, sterols, flavonoids, coumarins and total sugars in all extracts from the fruit parts. </span><span style="font-family:""><span style="font-family:Verdana;">The total polyphe</span><span style="font-family:Verdana;">nol content was determined by the folin-ciocalteu method. This method is based on the quantification of the total concentration of hydroxyl groups present in the extract. In an alkaline medium, the reagent of folin-ciocalteu, oxidizes the phenols to ion phenolates and partially reduces its hetero-polyacids</span><span style="font-family:Verdana;">, hence the formation of a blue complex. The absorbance is read at 765 nm against</span><span style="font-family:Verdana;"> a control. The Flavonoids vere determined using </span><span style="font-family:Verdana;">aluminum trichloride and sodium hydroxide. Aluminum trichloride forms a yellow complex with flavonoids and sodium hydroxyde forms a pink complex absorbing in the visible range at 510 nm.</span></span><span style="font-family:""> </span><span style="font-family:Verdana;">The alternative colorimetric method based on reactions with vanillin in an acidic medium made it possible to determine the tannin content. Absorbances were measured at 500 nm.</span><span style="font-family:Verdana;"> The results show that the methanolic extracts of the fibers and shell have very high polyphenol, flavonoid and tannin contents. In fact, the polyphenol contents of the fiber (159.00 ± 0.93 μg EAG/mg extract) and shell (155.39 ± 0.89 μg EAG/mg extract) were much higher than those of the pulp (27.21 ± 0.26 μg EAG/mg extract) and seeds (18.36 ± 0.07 μg EAG/mg extract). In addition, the flavonoid contents of the fibers (97.64 ± 0.40 μg EQ/mg) and of the shell (86.18 ± 0.46 μg EQ/mg) were higher than those of the seeds (12.82 ± 0.04 μg EQ/mg) and pulp (5.66 ± 0.18 μg EQ/mg). The tannin contents of the fibers (256.65 ± 1.45 μg EC/mg) and of the shell (196.05 ± 25 μg EC/mg) are higher than those of the pulp (103.09 ± 0.62 μg EC/mg extract) and seeds (1.09 ± 0.04 μg EC/mg extract). The antioxidant activity of extracts from different parts of the baobab fruit has Also been achieved using two different methods (DPPH and FRAP). The trapping capacity of the DPPH radical is very advantageous for the fibers (IC50 = 2.27 μg/mL) and the shell (IC50 = 1.52 μg/mL). The FRAP test has shown that the extracts from the shell (18.47 μg/mL) and fibers (20.00 μg/mL) have a greater iron reduction capacity than that of the standard ascorbic acid (45.64 μg/mL). 展开更多
关键词 Adansonia digitata L. fruit pulp SEEDS Shell
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A Novel Method of Fruit Raw Material Reprocessing
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作者 Alexander A. Emelyanov Konstantin A. Emelyanov 《Engineering(科研)》 2010年第12期962-968,共7页
We introduced a method of deep resources-economy reprocessing of fruit raw material. Based on the raw material fractionation at decreased temperatures the method results in the production of bioactive food stuffs, whi... We introduced a method of deep resources-economy reprocessing of fruit raw material. Based on the raw material fractionation at decreased temperatures the method results in the production of bioactive food stuffs, which are dry juice and refuse and natural water. The method includes the production of directly extracted juice and pulp refuse, juice evaporation in vacuum with the production of concentrate and natural water, and air drying the concentrate and the refuse. The method is realized for garden strawberry and cucurbit pulp. The mass concentration of solid in the fractions of cucurbit pulp is defined and the specific weight of the fractions are defined. It is shown that the solid of the cucurbit pulp is uniformly allocated between the fractions and amounts 34% for the dry juice, 31% for the dry refuse, and 35% for the natural water. Food and biological values of the cucurbit pulp fractions are determined. It is determined that the cucurbit includes silicium, nickel, and chromium. Silicium is contained only in dry fractions;nickel is present everywhere;chromium is discovered only in the natural water. Food and biological values of the cucurbit pulp are defined and their allocation between the fractions is determined. Separate components concentrations of the solid considerably differ between the fractions. Thus, two thirds of pulp protein is concentrated in the dry juice and a third is concentrated in the refuse. The natural water contains up to 90% of fat and sugar, from a half to two thirds of B-group vitamins, and the bulk of the mineral substances (K, Na, Ca, Mg, S, Co, Cu, Ni, Cr, and Zn), which concentration composes from 73% for potassium up to 100% for chromium. 展开更多
关键词 fruit Raw Material Vacuum Evaporation Air Drying Bioactive FRACTIONS DRY JUICE DRY pulp REFUSE Nature fruit Water
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杀菌温度对百香果果浆品质的影响 被引量:2
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作者 陆苗苗 姜启兴 +3 位作者 于沛沛 高沛 杨方 夏文水 《食品与生物技术学报》 CAS CSCD 北大核心 2023年第7期84-94,共11页
为研究在相同杀菌强度(F=3.0 min)下,温度对百香果果浆品质的影响,利用不同杀菌温度(88、92、95、108℃)对果浆进行杀菌处理,分析了其理化成分、色泽和游离氨基酸的变化情况,并利用快速气相色谱-电子鼻及气相色谱-质谱联用(gas chromato... 为研究在相同杀菌强度(F=3.0 min)下,温度对百香果果浆品质的影响,利用不同杀菌温度(88、92、95、108℃)对果浆进行杀菌处理,分析了其理化成分、色泽和游离氨基酸的变化情况,并利用快速气相色谱-电子鼻及气相色谱-质谱联用(gas chromatography-mass spectrometry,GC-MS)技术进行风味分析。结果表明,所有杀菌后样品的总酸质量浓度(以柠檬酸质量计)与原始样品(original sample,OS)相比均无显著差异(P>0.05);与OS组相比,经108℃处理的果浆中还原糖质量浓度显著减少(P<0.05),但总糖、总类胡萝卜素质量浓度均无显著差异(P>0.05),维生素C保留率也最高(74.93%)。风味分析表明,经108℃处理的样品含有和OS组相同种类的关键性风味物质,分别为丁酸乙酯、己酸乙酯、乙酸乙酯、辛酸乙酯和β-二氢紫罗兰酮,在气味上与OS组具有更强的相似性。经92℃处理的样品有最高的游离氨基酸综合评分以及较高的维生素C保留率(62.23%)。综上所述,当F=3.0 min时,108℃是保持百香果营养成分和感官品质的最佳杀菌温度,仅就100℃以下杀菌工艺而言,92℃杀菌的效果较好。 展开更多
关键词 百香果 果浆 杀菌强度 杀菌温度
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柱层析法提取刺玫果肉活性成分及其体外活性 被引量:2
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作者 崔遥 钟方丽 +1 位作者 王晓林 赵晗乐 《食品研究与开发》 CAS 北大核心 2023年第6期117-124,共8页
探究柱层析循环联合法提取刺玫果肉中目标成分(多糖、总黄酮、总皂苷)的工艺条件及其体外活性。以提取液中目标成分的含量为指标,通过对乙醇体积分数、吸涨体积、浸泡平衡时间、超声时间的考察确定最佳提取工艺。测定刺玫果肉目标成分... 探究柱层析循环联合法提取刺玫果肉中目标成分(多糖、总黄酮、总皂苷)的工艺条件及其体外活性。以提取液中目标成分的含量为指标,通过对乙醇体积分数、吸涨体积、浸泡平衡时间、超声时间的考察确定最佳提取工艺。测定刺玫果肉目标成分的提取物对α-葡萄糖苷酶的抑制率及对亚硝酸盐的清除率。结果表明,在最佳提取条件下,刺玫果肉目标成分的提取率均在90%以上;分离后,干浸膏中多糖、总黄酮、总皂苷的含量分别为428.5、484.5、122.5 mg/g。纯化后,干浸膏中多糖、总黄酮、总皂苷的含量分别为804.1、772.7、396.4 mg/g。刺玫果肉目标成分的提取物抑制α-葡萄糖苷酶活性的能力均强于阳性对照阿卡波糖,表明其具有显著的体外降糖作用;刺玫果肉目标成分的提取物清除亚硝酸盐的IC_(50)值均高于阳性对照维生素C,表明其具有较弱的亚硝酸盐清除活性。柱层析循环联合法可以同时提取多糖、总黄酮、总皂苷,且提取效率较高,为刺玫果产品的开发提供依据。 展开更多
关键词 刺玫果肉 柱层析循环联合法 多糖 总黄酮 总皂苷 体外活性
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不同前处理方式对冻干蓝莓粉品质特性的影响 被引量:3
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作者 许文静 陈昌琳 +3 位作者 邓莎 何贵萍 李硕 吕远平 《食品工业科技》 CAS 北大核心 2023年第6期89-95,共7页
为探究不同前处理方式(破皮、打浆、过滤)对蓝莓粉品质影响,利用真空冷冻干燥技术制备蓝莓粉,测定其物理特性、活性成分及抗氧化能力,并用傅里叶红外光谱法分析其主要基团。结果显示:经过不同前处理方式制备的蓝莓粉,其物理特性及抗氧... 为探究不同前处理方式(破皮、打浆、过滤)对蓝莓粉品质影响,利用真空冷冻干燥技术制备蓝莓粉,测定其物理特性、活性成分及抗氧化能力,并用傅里叶红外光谱法分析其主要基团。结果显示:经过不同前处理方式制备的蓝莓粉,其物理特性及抗氧化能力均有不同。通过红外光谱分析,三种蓝莓粉的主要基团无明显变化。整果粉分散性好、总酚(5.48 mg/g)和花青素(0.69 mg/g)含量最高、抗氧化能力最强;果浆粉(PP)水分含量最低(5.47%),溶解性最高(71.38%);果汁粉(JP)平均粒径最小(98.62μm),玻璃化转变温度最高(43.71℃)。整果粉(WP)溶解性较低,但抗氧化能力最强,可用作生产营养强化剂;果浆粉(PP)和果汁粉(JP)具有较好的物理特性,溶解性高,除了直接食用外,还可以进行压片加工或作为原料进一步加工固体饮料。三种蓝莓粉各有优势,可根据实际情况进行选择开发。 展开更多
关键词 蓝莓 果粉 打浆 真空冷冻干燥 抗氧化能力
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黑皮冬瓜果实生长及糖类物质变化规律
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作者 焦加斌 李金隆 +5 位作者 常静静 李静 陈潇 宋钊 何裕志 张白鸽 《中国农学通报》 2023年第13期42-51,共10页
明确冬瓜果实外观形态和糖类物质的变化特点,为冬瓜的优质高产栽培提供理论依据。以大型黑皮冬瓜‘铁柱二号’为供试品种,分别于幼果期、初果期、果实膨大期和成熟期,观测果实的外观形态、果肉细胞结构、糖类物质含量、α-半乳糖苷酶等... 明确冬瓜果实外观形态和糖类物质的变化特点,为冬瓜的优质高产栽培提供理论依据。以大型黑皮冬瓜‘铁柱二号’为供试品种,分别于幼果期、初果期、果实膨大期和成熟期,观测果实的外观形态、果肉细胞结构、糖类物质含量、α-半乳糖苷酶等酶活性的动态变化。冬瓜果实发育过程中,前期(花后前15 d)以细胞分裂为主,后期以细胞膨大为主。果实横纵径随生育期变化呈“S”型曲线,上、中、下部位的横纵径生长存在空间差异。在果实膨大期,中部横径显著小于上部和下部,与此时细胞体积大小密切相关。成熟期果实内主要的糖类物质是果糖和葡萄糖,分别占可溶性总糖的51%和48%。随着果实的生长发育,可溶性总糖浓度持续增加,中性转化酶、蔗糖磷酸合成酶、蔗糖合成酶分解方向的活性也逐渐升高,而可溶性酸性转化酶、细胞壁不溶性转化酶和α-半乳糖苷酶的活性不断降低。全生育期蔗糖分解酶的总活性均大于蔗糖合成酶的总活性。花后20~25 d是冬瓜中部横径生长的关键时期,花后25~35 d是糖类物质积累的关键时期,为提高冬瓜的果形品质和经济价值,在种植过程中,要注意提早供肥、加强管理,建议花后35 d左右及时采收。 展开更多
关键词 黑皮冬瓜 果实生长 果肉细胞 可溶性糖 酶活
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冻干百香果茉莉绿茶块的工艺研究 被引量:1
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作者 郑佳俐 王莉 林小晖 《吉林农业科技学院学报》 2023年第4期5-9,18,共6页
以百香果浆、茉莉绿茶汤为主要原料,研制冻干百香果茉莉绿茶块。通过Box-Benhnken响应面法,对冻干百香果茉莉绿茶块配方进行研究与优化。结果表明:最佳配方参数为茉莉绿茶汤51 g、百香果浆27 g、白砂糖27 g。在该参数下冻干百香果茉莉... 以百香果浆、茉莉绿茶汤为主要原料,研制冻干百香果茉莉绿茶块。通过Box-Benhnken响应面法,对冻干百香果茉莉绿茶块配方进行研究与优化。结果表明:最佳配方参数为茉莉绿茶汤51 g、百香果浆27 g、白砂糖27 g。在该参数下冻干百香果茉莉绿茶块的感官评分为86.02,与预测值的相对误差为0.26%,表明该模型可靠,具有较高实用性。 展开更多
关键词 茉莉绿茶汤 百香果浆 冻干 响应面法
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