荷兰黄瓜外部水分迁移模型及实验研究
详细信息Model and experiment of external moisture transfer of Dutch cucumber
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摘要: 综合单向扩散、双膜理论以及有效膜模型等原理,提出了荷兰黄瓜在贮藏前期的外部水分迁移传质模型——类单向扩散过程,通过实验导出了荷兰黄瓜在恒温恒湿条件下水分迁移时的有效膜厚度△x,避免了理论分析过程中存在的有效膜厚度难以确定等问题,为预测果蔬前期水分损失提供了一个新的思路。Abstract: Based on one-way diffusion, double membrane theory and effective membrane model, the external moisture transfer models of Dutch cucumber in the beginning of storage was built, which was called analogous diffusion in one-way direction. Then the effective film thickness was derived through experiment on water evaporation strength of Dutch cucumber under the condition of constant temperature and humidity, which avoided problem that it was difficult to determine thickness of effective film during analyzing its moisture transfer process, and provided a new thought for forecasting the water loss of fruits and vegetables in the beginning of storage.
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[1] 丁建武, 兰盛, 张华昌.减少粮食产后损失对确保我国粮食安全的重要性[J].粮食储藏, 2005 (2) :49-50. [2] 刘兴华, 寇莉.果菜瓜贮藏保鲜[M].北京:中国农业出版社, 2000:14-21. [3] 王艳红.新鲜果蔬低温贮藏失水机理研究[D].天津:天津商业大学, 2010. [4] Araya Ahromrit, Prabhat K Nema.Heat and mass transfer in deep-frying of pumpkin, sweet potato and taro[J].Journal of Food Science and Technology, 2010, 47 (6) :632-637.
[5] 苗玉涛, 邹同华, 黄健.单体球形果蔬压差预冷过程的简化数学模型及其实验验证[J].食品研究与开发, 2006, 27 (2) :164-167. [6] Raval AH, Solanki SC, Rajvir Yadav.A simplified heat transfer model for predicting temperature change inside food package kept in cold room[J].Journal of Food Science and Technology, 2011, 48 (5) :62-67.
[7] 金仁喜, 淮秀兰.多孔介质高强度传热传质的理论研究[J].工程热物理学报, 2005, 26:152-154. [8] 金听祥, 张海川, 李改莲, 等.熟肉真空冷却过程中水分迁移理论分析和实验[J].农业工程学报, 2008, 24 (8) :309-312. [9] 赵芳, 陈振乾, 施明恒.胡萝卜超声波预干燥热湿耦合迁移过程的数值模拟[J].农业工程学报, 2010, 26 (11) :349-354. [10] 夏文水.食品工艺学[M].北京:中国轻工业出版社, 2007:32-43. [11] 夏雅君.工程传质学[M].北京:机械工业出版社, 1985:107-135. [12] 杨世铭, 陶文铨.传热学[M].北京:高等教育出版社, 2006:540-550.
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