共查询到19条相似文献,搜索用时 109 毫秒
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果蔬在贮藏期间,由于乙烯的催熟作用、呼吸酶的氧化作用,导致其品质下降,贮藏期缩短。本文通过在油桃的保鲜过程中,对油桃散发出的乙烯进行光催化氧化降解处理,光催化和负离子综合作用抑制油桃果肉的褐变,研究该技术在冷藏条件下对油桃的保鲜效果。结果表明,光催化技术和负离子技术相结合,可以抑制油桃的腐败,有效延长油桃的贮藏时间。 相似文献
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猕猴桃原产于我国,果实以营养丰富,风味佳美,皮薄汁多,功效特异被誉为果中珍品。但称为“水果之王”的猕猴桃具有生理后熟期,保鲜贮藏十分困难。人们称它“七天软,十天烂,半月以后坏一半”。因此,研究猕猴佻的保鲜贮藏技术,可使猕猴桃的资源优势变为商品优势,使其产生显著的社会经济效益。一、影响猕猴桃贮藏保鲜的因素影响猕猴桃贮藏保鲜的因素包括:品种及其适时采收,贮藏的温、湿度,乙烯含量,环境 相似文献
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分析了果蔬品发生酶褐变、成熟和氧化的机理,简述了近年来物理和化学两种果蔬品保鲜方法,同时介绍了现有功能纸的种类。从制备方法角度概述了果蔬保鲜功能纸的研究现状,综述了纤维素改性法、浆内添加法和表面涂布法。浆内添加乙烯吸附剂、乙烯氧化剂、表面涂布植物精油、乙烯抑制剂制备的果蔬保鲜纸保鲜效果优良。使用绿色环保的果蔬保鲜纸是未来的发展方向,对研究出成本低、耐折度好、透气性高、重量轻的果蔬保鲜纸具有一定参考价值。 相似文献
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Mayra Bataller Venta Sandra Santa Cruz Broche Irán Fernández Torres Mario García Pérez Eliet Veliz Lorenzo Yalexmi Ramos Rodriguez 《臭氧:科学与工程》2010,32(5):361-371
Ozone is an effective alternative for the postharvest treatment of fruits and vegetables. The purpose of this study was to evaluate the ozone application in gaseous or aqueous phases for postharvest disinfection of tomatoes (Lycopersicon esculentum Mill) cultivar FA-180. Fruits harvested at the breaker stage were exposed to ozone concentrations of 25 and 45 mg m?3 for 2 h per day during 16 days, at non-controlled temperature and relative humidity. Exposure to ozone during storage extends the shelf-life of tomatoes, besides preserving its sensory attributes. Mature tomatoes, inoculated with Escherichia coli ATCC 25922, were washed with ozonated water containing 0.5 to 1.0 mg L?1 during 15 to 30 min. To achieve an adequate disinfection, 1 mg L?1 and 15 min are recommended. The disinfection with ozonated water was effective. 相似文献
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果蔬化学保鲜方法的研究 总被引:3,自引:0,他引:3
用桔皮提取物橙皮甙为主要原料制备了天然果蔬护色保鲜剂 CP- F。对果蔬的保鲜实验表明 ,CP- F对果蔬具有保鲜、护色双重效果 ,与自然放置对比 ,贮存期限大为提高 ,且能较好的保存果蔬的营养成分。 相似文献
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R. Pandiselvam S. Sunoj M. R. Manikantan Anjineyulu Kothakota K. B. Hebbar 《臭氧:科学与工程》2017,39(2):115-126
Ozone is activated oxygen and it is referred to as a triatomic form of oxygen. It is a natural agent and has a broad antimicrobial property, which together with an oxidation potential, make it an attractive option for the food industry. This article focuses on the use of ozone for preservation of vegetables, fruits and fruit juices, and highlights the inactivation mechanism of microorganisms. The application of ozone in grain storage and the quality of ozone treated grains is discussed, along with the reaction kinetics of ozone in grains. 相似文献
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以作物论,果树和蔬菜为全球最大的农药市场。介绍了2013年全球果树和蔬菜中葡萄、马铃薯、柑橘、梨果等的市场情况。 相似文献
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Hakan Karaca 《臭氧:科学与工程》2010,32(2):122-129
The use of ozone for postharvest sanitation and decay control of fruits, vegetables and their products during handling, processing and storage has been investigated for commercial applications. Due to their significant contribution to world trade and human nutrition, citrus fruits are thought to be important commodities. Decay can be observed in these products because of microbial activity and ethylene accumulation throughout storage. Residues of pesticides and other compounds in citrus fruit and food-borne illness outbreaks caused by consumption of contaminated citrus juice are important health issues. In this study, the possible uses of ozone in citrus industry for all these problems, and efficacy, benefits and/or detrimental effects of these applications are discussed. 相似文献
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依据NY/T761.3-2004《蔬菜和水果中有机磷、有机氯、拟除虫菊酯和氨基甲酸类农药多残留检测方法》对蔬菜和水果中甲萘威残留量的测量不确定度进行分析和评定,分析了影响测量标准不确定度结果的各个因素,比较其对总测量不确定度的相对贡献。分析结果表明,该测量过程所产生的测量不确定度主要来源于液相色谱仪引入的标样溶液和样品溶液色谱峰面积测量不确定度,其次是甲萘威标准工作溶液和样品制备过程中引入的测量不确定度。 相似文献