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Logistics Demand Forecast of Fresh Food E-Commerce Based on Bi-LSTM Model 被引量:1
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作者 Shifeng Ni Yan Peng Zijian Liu 《Journal of Computer and Communications》 2022年第9期51-65,共15页
Fresh products have the characteristics of perishable, small batch and high frequency. Therefore, for fresh food e-commerce enterprises, market demand forecasting is particularly important. This paper takes the sales ... Fresh products have the characteristics of perishable, small batch and high frequency. Therefore, for fresh food e-commerce enterprises, market demand forecasting is particularly important. This paper takes the sales data of a fresh food e-commerce enterprise as the logistics demand, analyzes the influence of time and meteorological factors on the demand, extracts the characteristic factors with greater influence, and proposes a logistics demand forecast scheme of fresh food e-commerce based on the Bi-LSTM model. The scheme is compared with other schemes based on the BP neural network and LSTM neural network models. The experimental results show that the Bi-LSTM model has good prediction performance on the problem of logistics demand prediction. This facilitates further research on some supply chain issues, such as business decision-making, inventory control, and logistics capacity planning. 展开更多
关键词 Data Analysis Bi-LSTM fresh food e-commerce Logistics Demand Forecast
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Paths for Upgrade and Transformation of E-commerce of China's Fresh Agricultural Products Based on Whole Industry Supply Chain 被引量:8
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作者 Tianqi ZHANG 《Asian Agricultural Research》 2017年第8期1-4,共4页
China's e-commerce market scale of fresh agricultural products has reached 1000 billion yuan,and the prospect is bright.However,in the face of such problems as quality control,storage and distribution,and consumpt... China's e-commerce market scale of fresh agricultural products has reached 1000 billion yuan,and the prospect is bright.However,in the face of such problems as quality control,storage and distribution,and consumption habits,the fresh product e-commerce has great difficulty in development.Internet generates large data,and data are the resources and the core of the Internet and the foundation for survival and development of Internet.This paper analyzed the current situation of the development of fresh agricultural products,and discussed the plight of fresh product e-commerce in scale,profit,non-standard,and network environment.On the basis of the whole industry supply chain,it came up with paths for upgrade and transformation of the fresh product e-commerce with the big data as the core in the context of Internet environment. 展开更多
关键词 Internet fresh agricultural products e-commerce Big data
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Analysis on the Change of Consumption Cognition and Demand and Its Influence on Entrepreneurial Business Model —— Taking Fresh Products E-commerce Platform as an Example
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作者 LIANG Qianru WEN Feng 《外文科技期刊数据库(文摘版)经济管理》 2021年第10期160-164,共9页
Through literature research and questionnaire survey, this paper studies consumers' cognition of fresh food platforms and its impact on consumer spending under the current background, focusing on the impact of con... Through literature research and questionnaire survey, this paper studies consumers' cognition of fresh food platforms and its impact on consumer spending under the current background, focusing on the impact of consumers' perception of reliability and risk of fresh food platforms on their consumer spending, and the moderating effect of loyalty among them. The results show that consumers' perception of platform reliability positively affects consumer spending, and loyalty negatively moderates the positive relationship between reliability and consumer spending, which indicates that with the increase of loyalty, the positive impact of reliability on consumer spending will decrease. Consumer perception of platform risk negatively affects consumer spending, but loyalty is not significant in moderating perceived risk and consumer spending. 展开更多
关键词 reliability perception risk perception LOYALTY fresh food platform
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Financing Decisions Analysis of E-commerce Supply Chain Finance for Fresh Agricultural Products in China
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作者 Ning Xian 《Journal of Finance Research》 2021年第2期1-5,共5页
The supply chain finance(SCF)solutions are becoming increasingly diversified with the continuous perfection of the economic system.However,financing for small and medium sized enterprises(SMEs)is still a difficult iss... The supply chain finance(SCF)solutions are becoming increasingly diversified with the continuous perfection of the economic system.However,financing for small and medium sized enterprises(SMEs)is still a difficult issue waiting to be solved by enterprises and the government in China.SCF solutions based on e-commerce platforms have developed rapidly in China that provide an alternative for SMEs when few studies have been conducted on e-commerce SCF solutions which focus on fresh agricultural products.Therefore,this research focuses on the SCF solutions applicable to e-commerce enterprises of fresh agricultural products. 展开更多
关键词 e-commerce supply chain finance SCF solutions SMEs supply chain financing decision analysis Supply chain management fresh agricultural products
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Food Handler's Perception of Fresh Cut Products
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作者 Manuela Barros Ada Rocha 《Journal of Agricultural Science and Technology(B)》 2012年第4期482-486,共5页
The use of Fresh Cut Products (FCP) allows food service units to offer a greater variety of menus, reducing costs and minimizing cross contamination. Few food units in Portugal are adopting FCP, since these products... The use of Fresh Cut Products (FCP) allows food service units to offer a greater variety of menus, reducing costs and minimizing cross contamination. Few food units in Portugal are adopting FCP, since these products are viewed as being more expensiveand are regarded as less natural and easily perishable.The present study aims to identify and analyze the level of awareness of food service operators in respect to FCP. Approximately 90% of food handlers referred the use of FCP at their workplace, pointing as the main advantages for using them the less time spent on preparation (58.6%), the variety (55.9%) and the convenience (55.9%). Reasons for not using them were doubtful origin (91.7%), price (66.7%) and being a possible threat to their jobs (58.3%). In spite of recognizing the advantages of using FCP, most of food handlers (77.2%) prefer traditional products. Traditional products were preferred by food handlers with lower educational level, working at schools and performing functions of kitchen helper. FCP were chosen by younger food handlers, with higher educational level. It seems necessary to promote a demystification of this category of products near food service managers and employees, explaining the best way and advantages of using FCP at institutional food services in terms of safety, cost and quality. 展开更多
关键词 fresh cut products food services food handlers perception.
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Fresh Food Catering for Hong Kong Could Be Bought in China's Mainland
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作者 Lily Wang 《China's Foreign Trade》 2015年第5期34-,共1页
An old Chinese saying goes like 'food is the paramount necessity of the people'.Food safety is always the key element.At the conference of Annual Fresh Food Tender for Hong Kong (2016),Xiaoqun He,deputy dire... An old Chinese saying goes like 'food is the paramount necessity of the people'.Food safety is always the key element.At the conference of Annual Fresh Food Tender for Hong Kong (2016),Xiaoqun He,deputy director of registration department of CNCA(Certification and Accreditation Administration of the People’s 展开更多
关键词 fresh food Catering for Hong Kong Could Be Bought in China's Mainland
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食品供应链零售流通中蔬菜微生物安全管理的国际经验与启示
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作者 成黎 《中国食品安全》 2026年第1期119-125,共7页
后疫情时期,公众健康意识提升推动生鲜蔬菜消费持续增长,因微生物风险引发的健康问题及蔬菜损耗,成为亟待解决的难题。当前,我国在零售流通环节的微生物管控存在不足,面临零售模式多样、冷链管理不善及法规技术滞后等挑战。本文聚焦食... 后疫情时期,公众健康意识提升推动生鲜蔬菜消费持续增长,因微生物风险引发的健康问题及蔬菜损耗,成为亟待解决的难题。当前,我国在零售流通环节的微生物管控存在不足,面临零售模式多样、冷链管理不善及法规技术滞后等挑战。本文聚焦食品供应链后端蔬菜的微生物风险控制,系统梳理美国、欧盟和日本的控制经验,提出开发精准风险评估预警技术以提升零售环节微生物安全管理能力,探索物联网(IoT)、区块链等技术创新应用推动冷链管理智能化,为我国生鲜蔬菜微生物控制管理提供新思路与理论支撑,助力我国食品供应链的高质量发展。 展开更多
关键词 生鲜蔬菜 微生物安全控制 食品供应链 零售流通 国际经验
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基于紫玉米芯衍生的花青素复合纤维素双功能气凝胶的制备及其应用
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作者 仲若凡 王文亮 +4 位作者 郝佳琪 郑昕怡 程进宝 段秀凤 李新平 《陕西科技大学学报》 北大核心 2026年第1期7-14,共8页
本研究通过提取紫玉米芯中的纤维素和花青素,结合肉桂精油@β-环糊精包合物,构建具有pH响应显色与抗菌保鲜的双功能气凝胶.研究发现气凝胶的三维多孔网络结构赋予其优异力学性能,压缩应力达5.9 MPa(应变90%).相较于对照组纤维素膜材料,... 本研究通过提取紫玉米芯中的纤维素和花青素,结合肉桂精油@β-环糊精包合物,构建具有pH响应显色与抗菌保鲜的双功能气凝胶.研究发现气凝胶的三维多孔网络结构赋予其优异力学性能,压缩应力达5.9 MPa(应变90%).相较于对照组纤维素膜材料,双功能气凝胶的pH响应速率更快,其稳态色差值约为纤维素膜材料的1.25倍.负载肉桂精油@β-环糊精包合物气凝胶的DPPH自由基清除率衰减速率(12.48%/60 h)显著优于游离精油体系(28.25%/60 h),缓释效率提升55%.应用实验表明,双功能气凝胶对虾的新鲜度监测具有更显著的响应性及保鲜作用.本研究为从农业废弃物中获取海鲜食品新鲜度监测和保鲜材料提供了理论依据. 展开更多
关键词 紫玉米芯 新鲜度监测 食品保鲜 功能性包装材料
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智能指示标签在生鲜食品包装中的应用研究进展
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作者 丁茜 王藜衡 《包装学报》 2026年第1期13-22,29,共11页
智能指示标签作为智能包装系统的重要组成部分,能够实时监测、感应、记录生鲜食品在流通过程中所发生的物理、化学和生物变化,已成为当前保障食品安全、减少食品损耗的重要手段之一。智能指示标签既可以直接监测生鲜食品的代谢产物(如... 智能指示标签作为智能包装系统的重要组成部分,能够实时监测、感应、记录生鲜食品在流通过程中所发生的物理、化学和生物变化,已成为当前保障食品安全、减少食品损耗的重要手段之一。智能指示标签既可以直接监测生鲜食品的代谢产物(如二氧化碳、乙烯等),也能间接从生鲜食品外部环境状态(如氧气、温度等)反映其新鲜度和安全性。其中,直接因素智能指示标签主要分为新鲜度指示型和成熟度指示型,而间接因素智能指示标签主要分为温度指示型和泄漏指示型。在此基础上,通过与射频识别(RFID)等信息技术相结合,智能指示标签还能实现生鲜食品品质信息的远程传输和可视化,从而有利于我国食品安全的全链条监管。 展开更多
关键词 智能包装技术 指示标签 生鲜食品 信息技术 食品安全
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基于遗传算法的生鲜食品配送中心选址研究
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作者 崔睿玲 《西安交通工程学院学术研究》 2026年第1期43-48,共6页
本文主要针对生鲜食品配送中心的选址模型构建进行研究,通过对生鲜进行需求量预测,得到生鲜食品未来的需求量,结合生鲜食品的特性,假设生鲜的新鲜度只与配送距离相关,构建总物流成本最小的配送中心选址模型。基于选址模型对遗传算法进... 本文主要针对生鲜食品配送中心的选址模型构建进行研究,通过对生鲜进行需求量预测,得到生鲜食品未来的需求量,结合生鲜食品的特性,假设生鲜的新鲜度只与配送距离相关,构建总物流成本最小的配送中心选址模型。基于选址模型对遗传算法进行设计,并应用遗传算法对模型进行求解研究。最后,通过对S公司进行实地调研,利用构建的生鲜食品配送中心选址模型,为S公司拟建的配送中心进行选址分析。将S公司的需求量预测结果和其他影响因素进行综合分析确定备选点,通过遗传算法对选址模型进行求解,得到物流总成本最小的最优选址结果。 展开更多
关键词 遗传算法 生鲜食品 配送中心 选址
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Urban Consumer Attitudes to Fresh Produce Safety in China
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作者 Brian J. Revell 《Journal of Food Science and Engineering》 2016年第1期1-10,共10页
The objective of this study was to explain the determinants of the fresh vegetables purchase decision by Chinese urban consumers in Beijing including awareness and attitudes to food safety, and their willingness to p... The objective of this study was to explain the determinants of the fresh vegetables purchase decision by Chinese urban consumers in Beijing including awareness and attitudes to food safety, and their willingness to pay (WTP) more for specific safety characteristics when buying fresh vegetables. The research rationale arises out of a history of food safety scares and scandals in China, and a national government response to promote quality assurance and safety through labelling. The primary hypothesis was that an understanding of food safety systems and product labelling, and trust in supply chain integrity would be key determinants in consumer willingness to purchase and pay more for safety assured vegetables. Based on a questionnaire survey of consumers in Beijing, the analysis found that the major factors underlying the purchase decision of fresh vegetables were product freshness, convenience and competitive price rather than assured product labelling. The decisions whether to purchase assurance-labelled vegetables and WTP more for chemical residue-free product were analysed by binomial and ordinal multinomial logit modelling respectively. It revealed a WTP moreof between 20% and 40%. Monthly household income was a key determinant of both quality assured product and WTP, together with degree of concern over residues, trust in retailer and assurance labels and place of purchase. The results suggest much still remains to be done to build trust though rigorous monitoring and enforcement of food safety standards to improve supply chain integrity and consumer confidence. 展开更多
关键词 food safety fresh produce consumer preferences China logit modelling WTP
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DDT and Its Metabolites in Fresh Water Fish Samples
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作者 Md. Amjad Hossain Mohammad Shoeb Nilufar Nahar 《Journal of Food Science and Engineering》 2016年第6期344-350,共7页
Twenty two fresh water fish samples namely Puntius sarana (Shawrputi), Cyprinus carpio (Karp), Oreochromis niloticos (Telapia), Channa punctatus (Taki), Wallogonia attu (Boal), Eutropiichthys vacha (Bacha)... Twenty two fresh water fish samples namely Puntius sarana (Shawrputi), Cyprinus carpio (Karp), Oreochromis niloticos (Telapia), Channa punctatus (Taki), Wallogonia attu (Boal), Eutropiichthys vacha (Bacha), Macrognathus aculiatus (Baim), Ailia coila (Kajoli), Mystus cavasisus(Gulsa), Ompok pabda (Pabdha), Corica soborna (Kachki), Mystus vittatus (Tengra), Glossogobius giuris (Baila), Macrobrachium malcolmsli (Chingri), Amblypharyngodon microlepis (Mola), Anabas testudineus (Koi), Macrognathus aculiatus (Baim), Channa striatus (Shole), Heteropnueste fossilis (Shing), Puntius sophore (Small Puti) and Pseudambassis ranga (Telapia) were collected from two rivers and one cultured fish pond. The samples were extracted by QuEChERS method, cleaned up with conc. H2SO4 treatment and cleaned extracts were analyzed by GC-ECD. Small size cultured rui fish sample which did show detectable amount of DDT and its metabohtes was used for the recovery experiments. Percent recovery was found to be in the range of 70%-113%. Amount of total DDTs were found to be 54.34, 48.81, 62.09, 54.72,78.81, 60.07, 47.0, 42.7, 26.31, 10.36, 25.32, 12.96, 20.10, 12.78, 17.65, and 4.71, 8.58, 11.3 and 19.01 ng/g in gulsa, pabhda, baila, bacha, baim, small purl, tengra, chanda, kachki, boal, taki, chingri, mola, shole, shing, koi, swarpurl, karp and telapia fish samples, respectively. However, the residual amounts of DDTs in all the fish samples were below maximum residue limit (MRL of DDTs in fish 5.0 mg/kg) according to Codex Alimentarius Commission. The ratios of 4,4'-DDT/DDTs were in the range of 0.03-0.44 which indicated that exposure to DDT is not due to recent use. 展开更多
关键词 OCPS BIOMAGNIFICATION gas chromatography fresh water fish and food chain.
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黄瓜新品种‘绿春3号’
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作者 张作标 许春梅 +9 位作者 柳景兰 高嫱 杨述 刘思宇 贾云鹤 赵丹 胡凯凤 孟雪娇 李金龙 张雪岩 《园艺学报》 北大核心 2025年第S2期157-158,共2页
‘绿春3号’是以黄瓜自交系10047为母本、自交系123为父本杂交而成的华南型黄瓜新品种。植株长势中等,果实圆筒形,瓜长18.00 cm,果皮黄绿色,果肉绿色,口感甜嫩,适合鲜食,商品瓜率93%以上。适应性强,耐受最低温度3°C,适合东三省及... ‘绿春3号’是以黄瓜自交系10047为母本、自交系123为父本杂交而成的华南型黄瓜新品种。植株长势中等,果实圆筒形,瓜长18.00 cm,果皮黄绿色,果肉绿色,口感甜嫩,适合鲜食,商品瓜率93%以上。适应性强,耐受最低温度3°C,适合东三省及内蒙古自治区保护地栽培。早春大棚种植产量为80 t·hm^(-2)。 展开更多
关键词 黄瓜 鲜食 品种
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基于冷链物联网时间-温度的冷鲜肉供应链优化研究
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作者 谢如鹤 孟祥超 +3 位作者 邹毅峰 刘广海 廖晶 瑭杰 《制冷学报》 北大核心 2025年第3期123-129,共7页
随着冷链物联网技术的发展,实时温度监控和数据共享已成为提升冷鲜肉供应链管理效率的重要手段。通过提出一种基于冷链物联网的时间-温度协调优化策略来提升冷鲜肉供应链的运营效率。基于预测微生物学和系统可靠性理论,研究了时间和温... 随着冷链物联网技术的发展,实时温度监控和数据共享已成为提升冷鲜肉供应链管理效率的重要手段。通过提出一种基于冷链物联网的时间-温度协调优化策略来提升冷鲜肉供应链的运营效率。基于预测微生物学和系统可靠性理论,研究了时间和温度对冷鲜肉品质变化的影响,构建了冷鲜肉的品质变化模型和冷鲜肉供应链的能耗模型,并以冷鲜鸡供应链为案例进行分析。研究表明:冷鲜肉供应链中存在一个最佳的新鲜度水平,能够使供应链效益达到最大化;当某一环节的新鲜度偏离该最佳新鲜度水平,可通过后续环节调整时间和温度,实现供应链效益的最大化。 展开更多
关键词 冷链物流 生鲜食品供应链 鲜度 时间-温度 易腐货物
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基于主题挖掘与情感分析的生鲜电商平台用户购后评论研究 被引量:3
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作者 王胜源 里清泉 《辽宁工程技术大学学报(社会科学版)》 2025年第2期130-137,共8页
用户购后评论是评估平台服务质量以及用户满意度的重要依据。以京东生鲜电商平台为例,运用Python软件获取客户评论作为研究数据,通过构建LDA主题模型识别消费者购后评论的6个核心主题,采用情感分析法判断各主题的情感倾向,筛选出消极评... 用户购后评论是评估平台服务质量以及用户满意度的重要依据。以京东生鲜电商平台为例,运用Python软件获取客户评论作为研究数据,通过构建LDA主题模型识别消费者购后评论的6个核心主题,采用情感分析法判断各主题的情感倾向,筛选出消极评论占比较大的主题并进行分析。研究表明:生鲜电商用户购后评论的核心主题为“性价比”“售后”“客服”“物流”“口感”“质量”,其中消极评论占比较大的主题为“性价比”“售后”“客服”,在此基础上从加强质量监督、优化价格策略、完善售后服务等方面提出改进建议。研究结论为生鲜电商平台提高服务质量、优化用户体验提供参考。 展开更多
关键词 生鲜电商 购后评论 主题挖掘 情感分析 用户体验
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生鲜电商质量安全管控机制——基于京东生鲜的案例研究
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作者 陈红华 张磊 向南 《管理评论》 北大核心 2025年第12期277-288,共12页
在高质量发展背景下,生鲜电商如何有效进行质量安全管控以提高产品质量和相关各方主体收益备受关注。以京东生鲜为例,采用“动因—行动过程—影响”的逻辑轴线,探究了生鲜电商企业在不同发展阶段实现有效管控的动态过程,揭示了生鲜电商... 在高质量发展背景下,生鲜电商如何有效进行质量安全管控以提高产品质量和相关各方主体收益备受关注。以京东生鲜为例,采用“动因—行动过程—影响”的逻辑轴线,探究了生鲜电商企业在不同发展阶段实现有效管控的动态过程,揭示了生鲜电商质量安全管控机制。研究发现:①生鲜电商质量安全管控主要经过探索建设期、深化管理期、能力沉淀期三个阶段,呈现“质量保证—质量改进—质量创新”的发展趋势;②生鲜电商通过“设计管控流程—明确质量标准—增强信号传递”这一动态过程,构建了全链路质量安全管控体系;③生鲜电商质量安全管控机制是通过质量干预、信号传递和适度管控影响上下游主体行为,降低不合格产品进入市场风险,激励生产商提高产品质量,促进产品优质优价,实现供应链网络均衡,提高交易效率。本研究不仅丰富和拓展了供应链质量管理理论在平台治理中的应用,也为生鲜电商企业质量安全管控提供实践启示。 展开更多
关键词 生鲜电商 质量安全 供应链质量管理 管控机制
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我国鲜湿粉条加工工艺、食品添加剂和防腐保鲜剂的应用研究进展
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作者 胡生海 李梅 +2 位作者 田甲春 葛霞 张凤 《食品安全质量检测学报》 2025年第14期245-250,共6页
鲜湿粉条作为近年来食品加工业发展的新兴产品,因其更具食用方便性和新鲜性,越来越受消费者的青睐。本文综述了我国鲜湿粉条的生产加工工艺、食品添加剂(明矾替代物)和防腐保鲜剂的研究与应用现状,加工工艺涵盖原料筛选(以红薯、马铃薯... 鲜湿粉条作为近年来食品加工业发展的新兴产品,因其更具食用方便性和新鲜性,越来越受消费者的青睐。本文综述了我国鲜湿粉条的生产加工工艺、食品添加剂(明矾替代物)和防腐保鲜剂的研究与应用现状,加工工艺涵盖原料筛选(以红薯、马铃薯淀粉为主)、打芡、和面、成型、老化、切分、包装及杀菌等核心步骤;食品添加剂以多糖类、磷酸盐类、蛋白质等作为品质改良剂;防腐保鲜剂研究聚焦于化学(山梨酸钾、柠檬酸等)和生物防腐剂(乳酸链球菌素、纳他霉素等)的应用以及复配技术。并针对当前鲜湿粉条生产中存在的防腐剂限量标准缺失、传统工艺高耗能及绿色保鲜技术不足的问题,提出未来需聚焦天然保鲜剂增效、智能包装及清洁化生产的建议,为我国鲜湿粉条的发展提出更高要求,提升市场竞争力,满足消费者对高品质食品的需求。 展开更多
关键词 鲜湿粉条 加工工艺 食品添加剂 防腐保鲜剂
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文山烟后套作鲜食作物对土壤性状及上部烟叶品质的影响
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作者 殷红慧 刘权猜 +5 位作者 胡棕棂 李鹏飞 涂译然 赵腾基 王影 杨其庆 《湖南农业科学》 2025年第11期25-30,共6页
为筛选适宜文山核心烟区种植的烟后套作鲜食作物,研究以单作烤烟为对照(CK),系统比较了套作鲜食玉米(T_(1))、大豆(T_(2))和豌豆(T_(3))对植烟土壤理化性质、酶活性、微生物区系及烟叶产质量的影响。结果表明:(1)与CK相比,T_(1)~T_(3)... 为筛选适宜文山核心烟区种植的烟后套作鲜食作物,研究以单作烤烟为对照(CK),系统比较了套作鲜食玉米(T_(1))、大豆(T_(2))和豌豆(T_(3))对植烟土壤理化性质、酶活性、微生物区系及烟叶产质量的影响。结果表明:(1)与CK相比,T_(1)~T_(3)均提高了根际土壤pH值与有机质含量,其中,T_(3)的有机质增幅达39.8%,T_(2)的碱解氮含量较CK显著增长21.4%,T_(1)~T_(3)均显著降低了土壤水溶性氯含量;(2)T_(1)~T_(3)均提高了土壤的过氧化氢酶、蔗糖酶、脲酶和硝酸还原酶活性,并增加了土壤中细菌、真菌和放线菌的数量;(3)T_(1)~T_(3)均提升了烟叶的经济性状,其中T_(2)的产量与产值最高;(4)T_(1)~T_(3)均提高了上部烟叶总糖、还原糖、钾含量、糖碱比和钾氯比,其中各套作处理的糖碱比达到或接近优质烟叶标准范围(8~10),且仅T_(2)的钾氯比>4,燃烧性最优;(5)外观质量评价总分排序依次为T_(2)>T_(3)>T_(1)>CK,各套作处理的残伤均低于CK。综上,烟后套作3种鲜食作物均能有效改良土壤性状并提高烟叶产量和品质。综合来看,套作大豆(T_(2))的效果最优,适宜应用于文山核心烟区“烤烟+N”模式。 展开更多
关键词 烤烟 套作 微生物区系 鲜食作物 文山
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数字电商下乡如何变革生鲜供应链?——宏观背景分析与两种路径比较
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作者 董筱丹 周彦邦 +1 位作者 傅雷 陈炫霖 《中国农业大学学报(社会科学版)》 北大核心 2025年第6期26-44,共19页
数字电商下乡通过重构传统生鲜供应链,对推动农业数字化转型和乡村振兴具有显著作用。本文结合宏观经济背景与微观案例,剖析数字电商下乡的行动激励、约束困境与路径选择。研究发现:第一,过剩资本溢出、脱贫攻坚基建投资与城市地租成本... 数字电商下乡通过重构传统生鲜供应链,对推动农业数字化转型和乡村振兴具有显著作用。本文结合宏观经济背景与微观案例,剖析数字电商下乡的行动激励、约束困境与路径选择。研究发现:第一,过剩资本溢出、脱贫攻坚基建投资与城市地租成本提升共同构成数字电商下乡的核心激励,但传统农业分散性、要素外部定价、交易成本畸高与市场结构性过剩等约束制约其深入生产端;第二,数字电商企业通过“中间商替代”与“中间体整合”两类差异化路径介入生鲜供应链,前者以局部纵向一体化优化流通效率,后者依托中间性组织实现生产端整合与区域品牌共建;第三,两类路径在缩短流通链条、提升标准化水平等方面成效显著,但分别面临风险转嫁矛盾与运营资产过重等潜在问题。现阶段,数字技术需进一步与多项乡村建设改革深入结合,才能利用好新质生产力要素,探索高质量发展道路。 展开更多
关键词 数字电商 生鲜供应链 中间性组织
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花色苷基智能包装膜在食品保鲜中的应用进展 被引量:1
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作者 孙莹 李沛钊 +4 位作者 刘申 郭兴 卢冰琳 江连洲 刘树萍 《食品工业科技》 北大核心 2025年第8期402-410,共9页
近年来,由于花色苷具有特殊化学性质,使得大量学者在花色苷基智能包装膜的功能性质以及食品新鲜度监测和保鲜中展开了研究。花色苷是黄酮类化合物,具有良好的抗氧化性和抗菌性。特殊的化学性质使其颜色根据环境酸碱度的变化做出相应的... 近年来,由于花色苷具有特殊化学性质,使得大量学者在花色苷基智能包装膜的功能性质以及食品新鲜度监测和保鲜中展开了研究。花色苷是黄酮类化合物,具有良好的抗氧化性和抗菌性。特殊的化学性质使其颜色根据环境酸碱度的变化做出相应的改变。使用花色苷基智能包装膜不仅可以有效延长食品的保质期、监测食品的新鲜度,并且花色苷也是一种功能性添加剂,可以改善包装薄膜的物理和功能特性。本文对花色苷基智能包装膜进行综述,先通过论述花色苷的化学性质来说明其变色原理,再从花色苷的来源差异、提取方式以及花色苷基智能包装膜成膜基质的选择进行论述,对花色苷基智能包装膜的构建进行了梳理,最后总结了花色苷基智能包装膜在食品保鲜中的应用,以期为花色苷基智能包装膜的未来研究和新产品开发提供理论依据。 展开更多
关键词 智能包装膜 花色苷 新鲜度监测 食品保鲜
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