| 冻融预处理对山楂热风干燥特性的影响 |
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| 引用本文： | 郭婷,吴燕,陈益能,段振华,陈振林,蔡文,邓春丽.冻融预处理对山楂热风干燥特性的影响[J].食品与机械,2020(4):68-71,82. |
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| 作者姓名： | 郭婷 吴燕 陈益能 段振华 陈振林 蔡文 邓春丽 |
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| 作者单位： | 贺州学院食品与生物工程学院,广西 贺州 542899 ；贺州学院食品科学与工程技术研究院,广西 贺州 542899;湖南农业大学信息科学技术学院,湖南 长沙 410128 |
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| 基金项目： | 广西自然科学基金青年基金项目(编号:2017GXNSFBA198174)；贺州市科学研究与技术开发计划项目(编号:贺科攻1908016) |
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| 摘 要： | 研究了不同冻融次数和温度条件下大果山楂的热风干燥特性和水分有效扩散系数。结果表明:冻融预处理对大果山楂的干燥特性有显著影响,随着冻融次数的增加,干燥时间缩短,干燥速率有所提高;冻融大果山楂在不同干燥温度下的干燥过程可采用Logarithmic模型进行描述;冻融大果山楂在不同干燥条件下的有效水分扩散系数(Deff)随着冻融次数的增加而变大。
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| 关 键 词： | 山楂 冻融 干燥特性 预处理 热风干燥 |
Effects of freeze-thaw pretreatment on the characteristics of hot-air drying in Malus domeri (Bois) chev. |
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| GUO Ting,WU Yan,CHEN Yi-neng,DUAN Zhen-hu,CHEN Zhen-lin,CAI Wen,DENG Chun-li.Effects of freeze-thaw pretreatment on the characteristics of hot-air drying in Malus domeri (Bois) chev.[J].Food and Machinery,2020(4):68-71,82. |
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| Authors: | GUO Ting WU Yan CHEN Yi-neng DUAN Zhen-hu CHEN Zhen-lin CAI Wen DENG Chun-li |
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| Abstract: | The effects of freeze-thaw processing on the characteristics of hot-air drying and the coefficients of moisture diffusion in Malus domeri (Bois) chev were investigated. The results showed that the freeze-thaw pre-treatments had significant effects on drying characteristics. It was found that freeze-thaw pre-treatments could significantly shorten the drying period and increasing the drying rate. Logarithmic model provided better simulation of drying curves for freeze-thaw M. domeri (Bois) chev. at different drying conditions. The results indicated that Deff increased with the increasing of times of freeze-thaw. |
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