共查询到19条相似文献,搜索用时 406 毫秒
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用准静态压缩试验,对影响板栗破壳力的不同因素——加载方向、板栗大小、加载速率、板栗含水率以及板栗的几何形状进行了分析。结果表明,影响板栗破壳力的主要因素为板栗含水率、板栗大小以及加载方向;在沿Y方向施加载荷时最省力;由单因素试验得出了板栗大小和破壳力之间、板栗含水率与破壳力之间的函数关系式;由多因素试验得出了板栗大小、含水率以及加载速率和破壳力之间的函数关系式。 相似文献
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板栗破壳力学特性的影响因素研究 总被引:1,自引:0,他引:1
用准静态压缩实验,对影响板栗破壳力的不同因素:加载方向、大小、加载速率、含水率以及板栗的几何形状进行了分析.结果表明,影响板栗破壳力的主要因素为板栗含水率、板栗大小以及加载方向;影响板栗破壳效果的主要因素有含水率、加载速率;在沿Y方向施加载荷时最省力;得出了板栗大小和破壳力之间的函数关系式及含水率与破壳力之间的函数关系式. 相似文献
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气体射流冲击板栗破壳技术与开口即食板栗加工试验研究 总被引:1,自引:0,他引:1
板栗食用和药用价值都很高,面对板栗生产的快速发展,必须大力推进板栗深加工。制约板栗深加工的因素很多,脱壳去衣是其中一个主要技术难题。本文利用自行设计研制的气体射流冲击设备,很好地解决了板栗破壳取仁的技术难题,为生产各种板栗深加工产品提供了必要的前提条件。另一方面,利用该设备生产的开口即食板栗较易剥壳,方便卫生,经充氮包装可延长保存期,常年供应。 相似文献
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以延缓鲜切荸荠在贮藏过程中的褐变并延长其货架期为目的,研究了贮藏温度为4 ℃时,乙醇浸泡及热处理对鲜切荸荠色差、褐变度、总酚含量、苯丙氨酸解氨酶、多酚氧化酶和过氧化物酶等指标的影响。结果表明,几种处理延缓鲜切荸荠褐变效果为:联合处理>乙醇处理>热处理。与对照组相比,乙醇处理中PAL和POD的活性较低,热处理及联合处理组可以降低酚类物质含量。因此,乙醇可能通过抑制PAL和POD活性来延缓荸荠褐变,而热处理及联合处理可能通过降低总酚含量和抑制PAL活性、PPO活性延缓荸荠褐变。 相似文献
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Maria CBM De Vasconcelos Richard N Bennett Eduardo AS Rosa Jorge V Ferreira‐Cardoso 《Journal of the science of food and agriculture》2010,90(10):1578-1589
Chestnut fruits are highly regarded and widely consumed throughout Europe, America and Asia. Various commercial forms are available, e.g. fresh and industrially processed. There have been various reviews on the composition of chestnut fruits but there has not been a comprehensive review of the different health benefits that this fruit can provide. This review is focused on the composition and associated health effects of European fresh chestnut (Castanea sativa Mill.) fruits and their home‐processed and industrial products, e.g. boiled, roasted, frozen, and ‘marron glacées’. We also expand the knowledge of chestnut uses by presenting data for other chestnut materials that have potential applications as new foods, as sources of antioxidants, and as sources of other useful bioactives. There is considerable literature data on nutrients in fresh chestnut fruits but less information on bioactive non‐nutrients such as phenolics. Chestnuts are mostly consumed as processed forms, and the different types of processing clearly affect the nutrient and non‐nutrient composition of the fruits. The benefits that this fruit can provide for human and animal health are numerous, but it is clear that improvements can be made for both production and quality of chestnut products, e.g. genetic selection and optimizing industrial processing. Copyright © 2010 Society of Chemical Industry 相似文献
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