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Rice Drying,Storage and Processing:Effects of Post-Harvest Operations on Grain Quality 被引量:10
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作者 Amanda MÜLLER Marcela Trojahn NUNES +6 位作者 Vanessa MALDANER Paulo Carteri CORADI Rosana Santos de MORAES Samuel MARTENS Andressa Fernandes LEAL Vladison Fogliato PEREIRA Cristielle König MARIN 《Rice science》 SCIE CSCD 2022年第1期16-30,共15页
Various post-harvest processes of rice are commonly employed,especially during the off-season,to ensure its consumption feasibility,which often affect the grain quality.Different forms of drying,storage and processing... Various post-harvest processes of rice are commonly employed,especially during the off-season,to ensure its consumption feasibility,which often affect the grain quality.Different forms of drying,storage and processing of rice are evaluated to identify their effects on grain quality.Microwave drying has emerged as an alternative to the widely-used intermittent-drying and fixed-bed-dryer methods of drying paddy rice.Control of drying-air temperatures(between 40℃ and 60℃)according to the rice variety can improve quality,especially for exotic varieties.Keeping stored grain in hygroscopic balance,with water content between 11%to 15%,at temperatures between 16℃ and 20℃ and with intergranular relative humidity near 60%,allows 12 months of storage in a controlled environment without significant deterioration.Other innovations,notably the application of artificial refrigeration to grain stored in bulk in vertical cylindrical silos and the use of impermeable packaging for storage,ensure the conservation of grain mass.The different stages and equipments used to obtain polished,brown and parboiled rice result in significant changes in the nutritional value of rice because of the removal of the outermost layers of the grains.Polishing reduces the nutritional value and physical homogeneity of rice.Brown rice retains more bioactive compounds and nutrients because it does not lose the outer layer of the grains in the polishing processes.Parboiled rice,although less nutritious than brown rice,has better grain integrity and milling yield and less loss of nutrients than white rice. 展开更多
关键词 agricultural engineering post-harvest rice engineering quality in rice pre-processing rice process industry
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Difference in corn kernel moisture content between pre-and post-harvest 被引量:3
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作者 LI Lu-lu MING Bo +5 位作者 XUE Jun GAO Shang WANG Ke-ru XIE Rui-zhi HOU Peng LI Shao-kun 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2021年第7期1775-1782,共8页
The harvest method of shelling corn(Zea mays L.)kernels in the field decreases labor costs associated with transporting,drying and threshing the crop.However,it was previously found that the kernel moisture content in... The harvest method of shelling corn(Zea mays L.)kernels in the field decreases labor costs associated with transporting,drying and threshing the crop.However,it was previously found that the kernel moisture content increased after field harvest,which decreased the value of corn kernels.To identify the reasons underlying the increase,we conducted a multiyear and-area trial in the Huang-Huai-Hai Plain,China and performed a staged-harvest test at several phases of kernel dry-down.The test investigated a range of parameters such as the kernel moisture content pre-and post-harvest,the kernel breakage rate,the amount of impurities,and the moisture content of various other plant tissues.An analysis of 411 pairs of pre-and post-harvest samples found that kernel moisture content after harvest was 2.2%higher than that before harvest.In the staged-harvest test,however,a significant increase was only observed when the kernel moisture content before harvest was higher than 23.9%.The increase in post-harvest kernel moisture content was positively associated with the pre-harvest kernel moisture content,breakage rate and impurity rate.Typically,at harvest time in this region,there is a significant fraction of immature crops with a high moisture content,resulting in kernels that are prone to breakage or impurities that ultimately lead to increases in water content after harvest.Therefore,we suggest using hybrids that quickly wither late in the growing stage.Additionally,farmers should delay harvest in order to minimize the pre-harvest kernel moisture content and thus reduce breakages and impurities,thereby improving the quality of kernels after harvest and the efficiency of corn kernel farming in China. 展开更多
关键词 kernel moisture content pre-harvest and post-harvest CORN
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Cannabis Indoor Growing Conditions, Management Practices, and Post-Harvest Treatment: A Review
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作者 Dan Jin Shengxi Jin Jie Chen 《American Journal of Plant Sciences》 2019年第6期925-946,共22页
Cannabis has attracted a new wave of research attention as an herbal medicine. To deliver compliant, uniform, and safe cannabis medicine, growers should optimize growing environments on a site-specific basis. Consider... Cannabis has attracted a new wave of research attention as an herbal medicine. To deliver compliant, uniform, and safe cannabis medicine, growers should optimize growing environments on a site-specific basis. Considering that environmental factors are interconnected, changes in a factor prompts adjustment of other factors. This paper reviews existing work that considers indoor growing conditions (light, temperature, CO2 concentration, humidity, growing media, and nutrient supply), management practices (irrigation, fertilization, pruning & training, and harvest timing), and post-harvest treatment (drying and storage) for cannabis indoor production. 展开更多
关键词 CANNABIS Environmental Factors GROWING Conditions post-harvest TREATMENT INDOOR CULTIVATION Agrology Agricultural Science
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Farmers’ Practices for the Orchard’s Maintenance and Post-Harvest Treatment of Cocoa in Infiltrated Classified and Unclassified Zone of Méagui (South-West, Côte d’Ivoire)
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作者 Trazié Kevin Guessan-Bi Kouadio Dagobert Kra +2 位作者 Koffi Éric Kwadjo Konan Lucien Kouame Mamadou Doumbia 《Health》 2023年第3期275-295,共21页
An important part of Ivorian cocoa production comes from infiltrated classified forests. The objective of this study is to investigate orchard maintenance and post-harvest cocoa treatment practices used by cocoa farme... An important part of Ivorian cocoa production comes from infiltrated classified forests. The objective of this study is to investigate orchard maintenance and post-harvest cocoa treatment practices used by cocoa farmers in infiltrated classified and unclassified areas of Méagui. To do this, 110 producers in two localities of the said zone were individually interviewed from February to April 2022, using a declarative questionnaire. It was found that cocoa orchards in the zone are aging. Nearly 68.55% of producers were heirs and 58.33% of those interviewed were under 46 years of age, with an average age of 43 years. Nearly 84.55% of the producers surveyed mainly use chemical insecticides to control the pests of greatest concern in these localities. Regarding the frequency of insecticide treatments, 11.82% of producers make 1 to 2 applications a year, 29.09% make 3 to 5 applications a year, and 43.64% make at least 6 applications a year. The active substances of the most used products belong to 99% of the Neonicotinoid and Pyrethroid families. Regarding cocoa harvesting and post-harvest operations, 93.64% of the producers carry out a single harvest/month;all do the shelling with mini machetes. Beans are fermented mainly in black plastic tarpaulins or in bags, for a period of 3 to 5 days (65.45%). Drying is done almost entirely (91.82%) on the black plastic tarp. This study shows that cocoa farmers in the areas surveyed do not respect the recommendations issued on phytosanitary practices and post-harvest treatment of cocoa. This non-compliance with the standards of good practices prescribed is particularly more accentuated in the locality located in infiltrated classified zone. It would, therefore, be judicious to revise or redefine the phytosanitary recommendations and carry out sensitization and training-follow-up programs for producers in this important cocoa production area of C?te d’Ivoire. 展开更多
关键词 Cocoa Farmers’ Practices Orchards Maintenance post-harvest Treatment Méagui
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Influence of Harvest Periods on Cassava (Manihot esculenta Crantz) Agronomic Traits and Physiological Response to Post-Harvest Physiological Deterioration
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作者 Astride Stéphanie Mouafi Djabou Herman Pascal Kounty Ewane +4 位作者 Victor Jos Evina Eyamo Franklin Tounkam Ketchiemo Priscila Gonzales Figueiredo Nicolas Niemenak Libert Brice Tonfack 《American Journal of Plant Sciences》 CAS 2023年第1期89-103,共15页
Cassava (Manihot esculenta Crantz) is the third largest source of calories in tropical countries and the sixth most important food crop in the World. However, the short shelf life of its storage roots after harvest du... Cassava (Manihot esculenta Crantz) is the third largest source of calories in tropical countries and the sixth most important food crop in the World. However, the short shelf life of its storage roots after harvest due to a rapid post-harvest physiological deterioration (PPD) makes the roots to be considered as a risky product to market. The objectives of this work were to investigate the influence of two harvest periods on cassava agronomic parameters and their physiological response to PPD. Three cassava cultivars 96/1414, I070593 and LMR were selected for the experiment and harvested at 10 and 12 months after planting (MAP). The response to PPD was assessed during storage at 0, 3, 8 and 15 days after harvest (DAH). Total proteins content, soluble sugars and starch, total polyphenols compounds, polyphenoloxidase and peroxidase activities were recorded during storage. Results showed large variation among the parameters at the two harvest periods across the cultivars. High number of tubers was recorded in all the cultivars at 12 MAP and a significant increase in storage roots length was observed in 96/1414 and LMR from 10 MAP to 12 MAP (25 ± 5.1 to 41.3 ± 5.9 and 22.6 ± 3.3 to 27.9 ± 4.8) respectively. A reduction of about 49% of tubers weight was observed in I070593 from 10 to 12 MAP while an increase of about 36% and 11% were recorded in LMR and 96/1414 respectively. Tubers from I070593 showed less susceptibility to PPD when harvested at 10 MAP compared to those from LMR and 96/1414 where less susceptibility to PPD were recorded at 12 MAP. An increase in soluble sugars content, total proteins content and peroxidase activity subsequently to a decrease in starch content were recorded during storage from 8 to 15 days after harvest especially at 10 MAP in I070593 and at 12 MAP in LMR and 96/1414. High content of total phenolic compounds and less activity of polyphenol oxidase were correlated to PPD susceptibility. This work opens a new insight issue of the consideration of the appropriate harvest time of the cultivars as a tool to better control the onset of postharvest physiological deterioration. 展开更多
关键词 Manihot esculenta Harvest Period post-harvest Deterioration Agronomic and Biochemical Parameters
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Effect of Post-Harvest Handling and Ripening Methods on Quality and Shelf-Life of Banana
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作者 Berhane Mezenghea Abraham Brhan Khiar Saleh Daniel Zeru Zelelew 《American Journal of Plant Sciences》 2022年第2期175-192,共18页
Banana (Musa spp.) is a highly perishable fruit that requires special handling. In Eritrea, post-harvest handling practices are characterized to be poor and as a result, poor fruit quality and high post-harvest loss a... Banana (Musa spp.) is a highly perishable fruit that requires special handling. In Eritrea, post-harvest handling practices are characterized to be poor and as a result, poor fruit quality and high post-harvest loss are common. Thus, the purpose of this study was to evaluate the effect of different post-harvest handling and ripening methods on quality and shelf-life of banana. A Complete Randomized Design (CRD) was used for evaluating a combination of two levels of post-harvest handling and four ripening methods in a factorial combination conducted in the laboratory of Horticulture at Hamelmalo Agricultural College. Peel colour change, physiological weight loss, pulp to peel ratio, total soluble solids (TSS), pulp pH, ripening period and shelf life were parameters studied. The results showed fruits treated with ripened tomato showed improved characteristics in all parameters compared to those treated with smoke from kerosene burning or mixed with moringa leaf. Similarly, fruits brought directly from the farm were better than those collected from the ripening room after passing the conventional post-harvest handling. Based on the results of this study, it can be concluded that ripening of banana with the help of tomato improves fruit quality and shelf life. Thus, it can be a safe and better alternative to smoking from kerosene burning. While moringa leaf has no potential as an alternative. 展开更多
关键词 post-harvest Handling BANANA RIPENING QUALITY Shelf Life
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Identification of Post-Harvest Operations Related to the Contamination of <i>Arachis hypogaea</i>L. (Groundnut) by Mycotoxins in the Province of Mayo Kebbi Ouest in the Republic of Chad
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作者 Serferbe Signaboubo Mbakop Nya Christelle Gapili Naoura 《Agricultural Sciences》 2021年第4期406-413,共8页
Good practice in post-harvest operations depends on the contamination of groundnuts (<em>Arachis hypogaea</em>) by mycotoxins. The objective of this study is to identify farmers’ practices that pose a ris... Good practice in post-harvest operations depends on the contamination of groundnuts (<em>Arachis hypogaea</em>) by mycotoxins. The objective of this study is to identify farmers’ practices that pose a risk to the post-harvest preservation of the fruits of <em>Arachis hypogaea</em> in the province of Mayo Kebbi Ouest. Data collection was carried out using a farmer survey sheet based on a questionnaire on drying and storage techniques and losses related to groundnut harvesting. The study revealed that the fruits of<em> Arachis hypogaea </em>are dried on the fields and stored in shells or pods in polyethylene bags. The latter can be kept for up to 6 months in the shop (44%), in the attic (25.3%), in living quarters (18.7%) and both in the attic and in houses (12%). The level of post-harvest losses is due on the one hand to post-harvest diseases (60%) and the presence of insects on the crops (32%) and on the other hand to the germination of seeds (8%) after the harvest due to heavy rains. This loss on a scale of 2% to 10% is 74.7% and 10% to 50% is 25.3%. Drying and storage techniques in these localities represent a risk of mycotoxin contamination of groundnuts. Raising farmers’ awareness of harvest management techniques to preserve the sanitary quality of groundnuts would be important. 展开更多
关键词 Arachis hypogaea post-harvest Technique Drying Storage MYCOTOXIN
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Influence of Post-Harvest Storage Technologies on Weight and Rate Losses and Sensory Profile of Cola Nuts (<i>Cola nitida</i>) Produced in Côte d’Ivoire
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作者 Jean-Marc N’Guessan Elisée Yapi Kouakoua +1 位作者 Nestor Kouakou Kouassi Georges N’Guessan Amani 《Open Journal of Applied Sciences》 2018年第9期371-380,共10页
The conservation of cola nuts (Cola nitida) poses a real problem in C&ocirc;te d’Ivoire because of the post-harvest losses. The objective of this study was to evaluate the impact of post-harvest technologies on o... The conservation of cola nuts (Cola nitida) poses a real problem in C&ocirc;te d’Ivoire because of the post-harvest losses. The objective of this study was to evaluate the impact of post-harvest technologies on organoleptic and physical properties of cola nut during storage. A biopesticide, glucose syrup and biopesticide + glucose syrup were applied to fresh cola nuts before conditioning and kept at 28&deg;C for 6 weeks. Physicochemical and sensory analyses were performed to check the quality of the nuts during storage. The results showed that the biopesticide keep cola nuts better than the others methods with only 11.66% ± 3.04% and 13.66% ± 3.95% of loss rates for white and red cola nuts respectively. Cola nuts treated with bio-pesticide retain significantly their freshness with 62.00% ± 1.15% of moisture for white nuts and 64.00% ± 2.00% of moisture for red nuts compared to those treated with glucose syrup and bio-pesticide + glucose syrup (56.66% ± 1.15%). Cola nuts treated with biopesticide have a better acceptability compared to those subjected to others treatments. The use of biopesticide for the storage of cola nuts minimizes the losses and maintains the quality whatever the type of cola. 展开更多
关键词 COLA nitida STORAGE post-harvest LOSSES BIOPESTICIDE Glucose Syrup Quality
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Farmers’ Practices for the Orchard’s Maintenance and Post-Harvest Treatment of Cocoa in Infiltrated Classified and Unclassified Zone of Méagui (South-West, Côte d’Ivoire)
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作者 Trazié Kevin Guessan-Bi Kouadio Dagobert Kra +2 位作者 Koffi Éric Kwadjo Konan Lucien Kouame Mamadou Doumbia 《Journal of Agricultural Chemistry and Environment》 2023年第3期275-295,共21页
An important part of Ivorian cocoa production comes from infiltrated classified forests. The objective of this study is to investigate orchard maintenance and post-harvest cocoa treatment practices used by cocoa farme... An important part of Ivorian cocoa production comes from infiltrated classified forests. The objective of this study is to investigate orchard maintenance and post-harvest cocoa treatment practices used by cocoa farmers in infiltrated classified and unclassified areas of Méagui. To do this, 110 producers in two localities of the said zone were individually interviewed from February to April 2022, using a declarative questionnaire. It was found that cocoa orchards in the zone are aging. Nearly 68.55% of producers were heirs and 58.33% of those interviewed were under 46 years of age, with an average age of 43 years. Nearly 84.55% of the producers surveyed mainly use chemical insecticides to control the pests of greatest concern in these localities. Regarding the frequency of insecticide treatments, 11.82% of producers make 1 to 2 applications a year, 29.09% make 3 to 5 applications a year, and 43.64% make at least 6 applications a year. The active substances of the most used products belong to 99% of the Neonicotinoid and Pyrethroid families. Regarding cocoa harvesting and post-harvest operations, 93.64% of the producers carry out a single harvest/month;all do the shelling with mini machetes. Beans are fermented mainly in black plastic tarpaulins or in bags, for a period of 3 to 5 days (65.45%). Drying is done almost entirely (91.82%) on the black plastic tarp. This study shows that cocoa farmers in the areas surveyed do not respect the recommendations issued on phytosanitary practices and post-harvest treatment of cocoa. This non-compliance with the standards of good practices prescribed is particularly more accentuated in the locality located in infiltrated classified zone. It would, therefore, be judicious to revise or redefine the phytosanitary recommendations and carry out sensitization and training-follow-up programs for producers in this important cocoa production area of C?te d’Ivoire. 展开更多
关键词 Cocoa Farmers’ Practices Orchards Maintenance post-harvest Treatment Méagui
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Microbial Biocontrol of Post-harvest Fungal Rot in Apples:Current State of the Science
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作者 EL Alami Nabila EL Attari Soufiyan 《Journal of Botanical Research》 2020年第4期31-58,共28页
Our study consists of a careful literature review carried out with the aim of better understanding the models developed in the field of biocontrol of postharvest fungal rot in apples(PHFRA)over the past two decades.It... Our study consists of a careful literature review carried out with the aim of better understanding the models developed in the field of biocontrol of postharvest fungal rot in apples(PHFRA)over the past two decades.It aims,more specifically,to shed light on the progress made by examining the products developed,their nature,their target pathogens,their effectiveness,theirs modes of action and the stage of their development.The post-harvest biocontrol of apples has made remarkable progress during the last twenty years of research.Several products(yeasts,bacteria,filamentous fungi and actinomycetes)have been selected.Some,are already marketed,others are at different stages of development.However,several points limit the optimal use of microbial antagonists in the bio-management of post-harvest apple rots as an alternative to chemicals.It is,in fact,still necessary to develop appropriate formulations of these microbial biocontrol agents,to better study their mechanisms of action,to test them under commercial conditions and against a broad spectrum of pathogens and hosts.However,although sometimes considered less effective than chemical treatments,biocontrol products based on microorganisms have major advantages for an application in an integrated post-harvest apple protection strategy. 展开更多
关键词 Microbial antagonists Fungi rots post-harvest Apple BIOCONTROL
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Does fishing venture matter for reducing post-harvest loss?Empirical evidence from Bangladesh
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作者 Md.Rasheduzzaman Md.Masudul Haque Prodhan +1 位作者 Md.Salauddin Palash Md.Akhtaruzzaman Khan 《Aquaculture and Fisheries》 CSCD 2024年第4期696-705,共10页
The study was conducted to estimate the post-harvest loss(PHL)of inland capture fisheries in Bangladesh based on the fishing venture i.e.,sole proprietorship,partnership and cooperatives using Questionnaire Loss Asses... The study was conducted to estimate the post-harvest loss(PHL)of inland capture fisheries in Bangladesh based on the fishing venture i.e.,sole proprietorship,partnership and cooperatives using Questionnaire Loss Assessment Method(QLAM).A total of 1339 fishermen were selected using stratified random sampling where 792,485,and 62 were involved in the sole proprietorship,partnership,and cooperatives types of fishing venture respectively.The data were collected from thirty-nine districts across six divisions through the direct interview method covering 92 fish species.The results indicated that Ashar(June-July)to Agrahayon(November-December)was the peak fishing period for every fishing venture.The study revealed that the high volumes of fishes were caught from haor for partnership and cooperatives while river was for sole proprietorship.The study accounted lower PHL for cooperatives than that of sole proprietorship and partnership and found significance differences among them from Tukey’s pairwise test.The estimated PHL was higher for Puti(Puntius chola)in sole proprietorship and partnership whereas Tengra(Gagata cenia)in cooperatives venture.The study suggests to expand the cooperatives fishing ventures widely in Bangladesh where the predominant factors(i.e.,longer harvesting duration,delaying in marketing the fishes and temperature,excess supply,and etc.)of causing PHL in this venture should be taken under consideration. 展开更多
关键词 post-harvest loss Inland capture fisheries Fishing venture Physical loss Market loss BANGLADESH
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Integration of Metabolomics and Subcellular Organelle Expression Microarray to Increase Understanding the Organic Acid Changes in Post-harvest Citrus Fruit 被引量:15
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作者 Xiaohua Sun Andan Zhu +9 位作者 Shuzhen Liu Ling Sheng Qiaoli Ma Li Zhang Elsayed Mohamed Elsayed Nishawy Yunliu Zeng Juan Xu Zhaocheng Ma Yunjiang Cheng Xiuxin Deng 《Journal of Integrative Plant Biology》 SCIE CAS CSCD 2013年第11期1038-1053,共16页
Citric acid plays an important role in fresh fruit flavor and its adaptability to post-harvest storage conditions. In order to explore organic acid regulatory mechanisms in post-harvest citrus fruit, systematic biolog... Citric acid plays an important role in fresh fruit flavor and its adaptability to post-harvest storage conditions. In order to explore organic acid regulatory mechanisms in post-harvest citrus fruit, systematic biological analyses were conducted on stored Hirado Buntan Pummelo (HBP; Citrus grandis) fruits. High- performance capillary electrophoresis, subcellular organelle expression microarray, real-time quantitative reverse transcription polymerase chain reaction, gas chromatography mass spectrometry (GC-MS), and conventional physiological and biochemical analyses were undertaken. The results showed that the concentration of organic acids in HBP underwent a regular fluctuation. GC-MS-based metabolic profiling indicated that succinic acid, ~,-aminobutyric acid (GABA), and glutamine contents increased, but 2- oxoglutaric acid content declined, which further confirmed that the GABA shunt may have some regulatory roles in organic acid catabolism processes. In addition, the concentration of organic acids was significantly correlated with senescence-related physiological processes, such as hydrogen peroxide content as well as superoxide dismutase and peroxidase activities, which showed that organic acids could be regarded as important parameters for measuring citrus fruit post-harvest senescence processes. 展开更多
关键词 CITRUS gene expression METABOLITE organic acids post-harvest storage.
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The Or Gene Enhances Carotenoid Accumulation and Stability During Post-Harvest Storage of Potato Tubers 被引量:10
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作者 Li Li Yong Yang +8 位作者 Qiang Xu Katherine Owsiany Ralf Welsch Chureeporn Chitchumroonchokchai Shan Lu Joyce Van Eck Xiu-Xin Deng Mark Failla Theodore W. Thannhauser 《Molecular Plant》 SCIE CAS CSCD 2012年第2期339-352,共14页
Provitamin A carotenoids in staple crops are not very stable during storage and their loss compromises nutritional quality. To elucidate the fundamental mechanisms underlying carotenoid accumulation and stability, we ... Provitamin A carotenoids in staple crops are not very stable during storage and their loss compromises nutritional quality. To elucidate the fundamental mechanisms underlying carotenoid accumulation and stability, we investigated transgenic potato tubers that expressed the cauliflower Orange (Or) gene. We found that the Or transgene not only promoted retention of 13-carotene level, but also continuously stimulated its accumulation during 5 months of cold storage. In contrast, no increased levels of carotenoids were observed in the tubers of vector-only controls or a yellow- flesh variety during the same period of storage. The increased carotenoid accumulation was found to be associated with the formation of lipoprotein-carotenoid sequestering structures, as well as with the enhanced abundance of phytoene synthase, a key enzyme in the carotenoid biosynthetic pathway. Furthermore, the provitamin A carotenoids stored were shown to be stable during simulated digestion and accessible for uptake by human intestinal absorptive cells. Proteomic analysis identified three major functional groups of proteins (i.e. heat shock proteins, glutathione-S-transferases, and carbohydrate metabolic proteins) that are potentially important in the Or-regulated carotenoid accumulation. Our results show that regulation of carotenoid sequestration capacity is an important mechanism by which carotenoid stability is regulated. Our findings suggest that induction of a proper sink structure formation in staple crops may provide the crops with a unique ability to promote and/or stabilize provitamin A accumulation during plant growth and post-harvest storage. 展开更多
关键词 Carotenoids CHROMOPLASTS Or gene potato provitamin A loss staple crops post-harvest storage.
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Challenges in the microbiological food safety of fresh produce:Limitations of post-harvest washing and the need for alternative interventions 被引量:1
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作者 Kayla Murray Fan Wu +2 位作者 John Shi Sophia Jun Xue Keith Warriner 《Food Quality and Safety》 SCIE 2017年第4期289-301,共13页
Fresh produce(processed fruit and vegetables)continues to be the main source of foodborne illness outbreaks implicating pathogens such as Escherichia coli O157:H7,Salmonella,Listeria monocytogenes and human parasites(... Fresh produce(processed fruit and vegetables)continues to be the main source of foodborne illness outbreaks implicating pathogens such as Escherichia coli O157:H7,Salmonella,Listeria monocytogenes and human parasites(e.g.hepatitis A,Cyclospora).Previously,outbreaks were primarily limited to leafy greens,tomatoes,and cantaloupes,but more recently there has been a trend of more diverse produce types(e.g.cucumbers and papayas)being implicated.Although on-farm good agriculture practices(GAP)contribute to preventing pathogens entering the fresh produce chain,it cannot be relied upon completely due to the open nature of farming.As a consequence,there is an identified need for interventions that can remove field-acquired contamination,especially given fresh produce is eaten raw.In the following review,an overview of foodborne illness outbreaks linked to contaminated fresh produce will be described along with potential sources of contamination.Post-harvest washing that was once considered decontamination is now viewed as a high-risk cross-contamination point.The challenges in monitoring the post-harvest wash process will be discussed along with processing factors that need to be considered.A range of alternative,or supplemental,non-aqueous interventions will be described including irradiation,ultraviolet light,high hydrostatic pressure,gas phase(ozone and chlorine dioxide),and hydroxyl radicals generated through advanced oxidative process or gas plasma.All have been proved to be effective at pathogen control on the laboratory scale and are poised to enter commercial application.The current status of these alternative interventions along with challenges of integrating into commercial practice will be described. 展开更多
关键词 Fresh produce Escherichia coli O157:H7 Salmonella LISTERIA Iirradiation Ozone Chlorine dioxide Advanced oxidative process post-harvest WASHING Leafy greens Fruit Vegetable
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Assessment of post-harvest fish losses Croaker Pseudotolithus elongatus,(Bowdich,1825),Catfish Arius heudeloti,(Valenciennes,1840)and Shrimp Nematopalaemon hastatus(Aurivillius,1898)in Ondo State,Nigeria 被引量:1
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作者 Olusumbo Adeolu Adelaja Roslina Binti Kamaruddin Lee Wen Chiat 《Aquaculture and Fisheries》 2018年第5期209-216,共8页
The study assess post-harvest fish losses among three(3)dominant marine fish species along coastal areas of Ondo State,Nigeria.Simple random sampling was used to select 100 fishermen from 5 viable fishing communities ... The study assess post-harvest fish losses among three(3)dominant marine fish species along coastal areas of Ondo State,Nigeria.Simple random sampling was used to select 100 fishermen from 5 viable fishing communities along coastal areas of Ondo State while questionnaire was used for data collection.Descriptive statistics shows that small-scale fishing is dominated by males with mean age of 39 years.The fishermen incurred average post-harvest fish losses of 8.15%for croaker,7.76%for catfish and 7.57%for shrimp respectively.Causes of post-harvest fish losses in the study area includes lengthy duration of fishing cycle,poor handling practices,lack of covering facilities,failure to use ice,lack of storage facilities and lack of good means of transportation.Regression model revealed a statistical significant relationship(P<0.05)with age,educational level,fishing experience,duration of fishing cycle,storage and transportation facilities against percentage fish losses(Croaker:Pseudotolithus elongatus,Catfish:Arius heudeloti and Shrimp:Nematopalaemon hastatus).In order to ensure food security,post-harvest fish losses needs to be reduced to the barest minimum.Government should provide adequate infrastructural facilities to the small-scale fisheries sector in order to improve their standard of living and increase their income level. 展开更多
关键词 post-harvest fish losses Small-scale fishermen Food security Livelihood Fish species
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Pre-harvest and post-harvest application of benzothiadiazole for controlling anthracnose and extending shelf life of harvested banana
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作者 Li Xueping Shi Jingying +7 位作者 Zhu Xiaoyang Wang Jinghua Yuan Zhenxin Luo Jun Liu Tongxin Wang Rong Rao Shen Chen Weixin 《International Journal of Agricultural and Biological Engineering》 SCIE EI CAS 2013年第4期76-83,共8页
Anthracnose,caused by the fungus Colletotrichum musae,is a serious latent post-harvest disease of banana,which results in major economic losses during transportation and storage.Benzo-thiadiazole-7-carbothioic acid S-... Anthracnose,caused by the fungus Colletotrichum musae,is a serious latent post-harvest disease of banana,which results in major economic losses during transportation and storage.Benzo-thiadiazole-7-carbothioic acid S-methyl ester(BTH),a functional analogue of the plant endogenous hormone-like compound salicylic acid(SA),has been known to possess resistant effects on some diseases caused by fungi.The aim of present study was to select an appropriate BTH concentration and an appropriate stage of banana ripening for its application in controlling anthracnose and extending shelf life of harvested banana fruit.Different concentrations of BTH(50,100,200 and 300μg/mL)were applied at different stages of banana fruit ripening,including one week,two weeks and one month before harvest.The results suggest that while the concentrations of BTH ranging from 50μg/mL to 200μg/mL in both pre-harvest and post-harvest application,this could control anthracnose of harvested banana fruit,the appropriate concentration of BTH in both pre-harvest and post-harvest treatment was 100μg/mL and the best time of BTH treatment was two weeks before harvest.Examination of quality parameters including peel color and firmness indicated that 100μg/mL BTH treatment delayed banana fruit ripening at room temperature. 展开更多
关键词 banana fruit shelf life RIPENING post-harvest preservation BTH treatment ANTHRACNOSE peel color FIRMNESS
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Image processing methods to evaluate tomato and zucchini damage in post-harvest stages
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作者 José Antonio Alvarez-Bermejo Cynthia Giagnocavo +3 位作者 Li Ming Encarnación Castillo Morales Diego P.Morales Santos Yang Xinting 《International Journal of Agricultural and Biological Engineering》 SCIE EI CAS 2017年第5期126-133,共8页
Through the supply chain,the quality or quality change of the products can generate important losses.The quality control in some steps is made manually that supposes a high level of subjectivity,controlling the qualit... Through the supply chain,the quality or quality change of the products can generate important losses.The quality control in some steps is made manually that supposes a high level of subjectivity,controlling the quality and its evolution using automatic systems can suppose a reduction of the losses.Testing some automatic image analysis techniques in the case of tomatoes and zucchini is the main objective of this study.Two steps in the supply chain are considered,the feeding of the raw products into the handling chain(because low quality generates a reduction of the chain productivity)and the cool storage of the processed products(as the value at the market is reduced).It was proposed to analyze the incoming products at the head the processing line using CCD cameras to detect low quality and/or dirty products(corresponding to specific farmers/suppliers,it should be asked to improve to maintain the productivity of the line).The second stage is analyzing the evolution of the products along the cool chain(storage and transport),the use of an App developed to be use under Android was proposed to substitute the“visual”evaluation used in practice.The algorithms used,including stages of pre-treatment,segmentation,analysis and presentation of the results take account of the short time available and the limited capacity of the batteries.High performance techniques were applied to the homography stage to discard some of the images,resulting in better performance.Also threads and renderscript kernels were created to parallelize the methods used on the resulting images being able to inspect faster the products.The proposed method achieves success rates comparable to,and improving,the expert inspection. 展开更多
关键词 image processing color space smartphone efficient stitching HOMOGRAPHY controlled supervision artificial vision embedded parallel processing injury assessment TRACEABILITY post-harvest control feature detection
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Decentralized solar-powered cooling systems for fresh fruit and vegetables to reduce post-harvest losses in developing regions:a review
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作者 Waseem Amjad Anjum Munir +4 位作者 Fatima Akram Aditya Parmar Marcelo Precoppe Furqan Asghar Faisal Mahmood 《Clean Energy》 EI CSCD 2023年第3期635-653,共19页
The availability of on-farm storage and processing is a critical challenge facing small farmers,which hinders agricultural productivity.Thirty per cent of the food produced globally is lost after harvest,with the prop... The availability of on-farm storage and processing is a critical challenge facing small farmers,which hinders agricultural productivity.Thirty per cent of the food produced globally is lost after harvest,with the proportion being exceptionally high in low-and middle-income countries due to a lack of on-farm handling and storage facilities.Conventional cold-storage solutions have not taken off at the smallholder level,mainly due to a lack of availability and access to reliable grid electricity.Therefore,off-grid decentralized solar-powered cold-storage units can play a vital role in preserving the produce at production sites and enhancing livelihood and rural development with a minimal carbon footprint.To maintain low temperatures at every step of the agricultural value chain,known as the‘cold chain’,several technology vendors aim to improve the shelf life and user benefit.Small-scale farmers,which account for two-thirds of all food losses,are another group they focus on.This study examines the existing situation,importance and potential opportunities of decentralized cold-storage systems for fresh fruit and vegetables.In addition to economic,social,technological and environmental limitations,this study examines the triumphs and challenges of incorporating solar-energy-powered cold storage into developing communities.Although the private sector,NGOs and some government agencies are working to promote decentralized cold-storage facilities,relatively little has been done so far to have a significant influence on post-harvest losses and food security.There are still knowledge gaps on decentralized cold-storage facilities.The primary operational constraint is the economic situation of end users and the lack of financing alternatives for smallholder farmers. 展开更多
关键词 post-harvest losses solar energy on-farm cold storage GHG emission
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粮食产后服务体系建设的国际经验与启示 被引量:2
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作者 李天祥 朱晶 《世界农业》 CSSCI 2024年第4期50-60,共11页
减少粮食损耗是实现可持续发展和保障粮食安全的重要途径,粮食产后服务体系建设是减少粮食损耗的关键环节。本文在分析中国粮食产后服务发展现状与问题的基础上,梳理了美国、加拿大、日本三个典型国家在发展粮食产后服务方面的一些经验... 减少粮食损耗是实现可持续发展和保障粮食安全的重要途径,粮食产后服务体系建设是减少粮食损耗的关键环节。本文在分析中国粮食产后服务发展现状与问题的基础上,梳理了美国、加拿大、日本三个典型国家在发展粮食产后服务方面的一些经验和做法,并结合中国实际情况,探讨了其对中国粮食产后服务体系建设启示和镜鉴。研究结果表明,粮食产业链全商业化运作是美国和加拿大建设完备粮食产后服务体系的基石,先进的全产业链节粮减损技术及政府、企业与农户的合作协调机制是其粮食产后服务体系运行的关键;日本则在引进先进技术的同时,构建了政府、农协、农户三方合力建设的层次分明、规范运作的粮食产后服务体系,有效保障了农民种粮收益。本文据此进一步提出了完善中国粮食产后服务体系建设的对策思路。 展开更多
关键词 粮食产后服务 产后损失 粮食安全 体系建设
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上海桃产业信息现状与发展趋势
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作者 周慧娟 苏明申 +5 位作者 杜纪红 李雄伟 张夏南 张明昊 周讯 叶正文 《上海农业学报》 2024年第5期107-114,共8页
为推动上海桃产业高质量可持续发展,在分析产业布局、品种结构、经营主体概况、成本结构、采后仓储、市场动态等产业信息的基础上,阐述了上海桃全产业链生产中存在的问题,如与市场空缺期配套的高品质品种选育有待完善,省力化、智慧化配... 为推动上海桃产业高质量可持续发展,在分析产业布局、品种结构、经营主体概况、成本结构、采后仓储、市场动态等产业信息的基础上,阐述了上海桃全产业链生产中存在的问题,如与市场空缺期配套的高品质品种选育有待完善,省力化、智慧化配套管理技术和病虫害防治技术有待提升,产业链延伸关键技术、分等分级、贮运保鲜技术和品牌建设有待加强等。进而有针对性地提出调优品种结构,推广省力化、智慧化配套管理模式,推进产业链延伸的关键技术,以及提高经济附加值等发展建议。 展开更多
关键词 产业信息 市场动态 采后仓储 发展建议
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