| 红枣冻干预冻工艺优化研究 |
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| 引用本文： | 卢翠英,高续春,代宏哲,樊君.红枣冻干预冻工艺优化研究[J].当代化工,2010,39(3):233-236. |
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| 作者姓名： | 卢翠英 高续春 代宏哲 樊君 |
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| 作者单位： | 榆林学院化学系,陕西,榆林,719000;榆林学院化学系,陕西,榆林,719000;西北大学化工学院,陕西,西安,710069;西北大学化工学院,陕西,西安,710069 |
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| 摘 要： | 采用电阻法测量了红枣的共晶点温度,其值为-32℃。在实验室冻干机上分别进行了单因素和正交实验,研究了冻结速度、枣片厚度、冻结温度和冻结时间对红枣预冻结的影响情况,得到了红枣冻干过程的冻结工艺最优参数为：冻结速度-1.0℃/min,枣片厚度8 mm,冻结温度-38℃,冻结时间210 min。
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| 关 键 词： | 红枣 冷冻干燥 共晶点温度 |
Study on Optimization of Vacuum-freeze and Pre-freezing of Zizyphus jujube |
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| LU Cui-ying,GAO Xv-chun,DAI Hong-zhe,FAN Jun.Study on Optimization of Vacuum-freeze and Pre-freezing of Zizyphus jujube[J].Contemporary Chemical Industry,2010,39(3):233-236. |
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| Authors: | LU Cui-ying GAO Xv-chun DAI Hong-zhe FAN Jun |
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| Affiliation: | 1.Department of Chemistry,Yulin College,Shanxi Yvlin 719000,China;2.Department of chemical engineering,Northwest University,Shanxi Xi＇an 710069,China) |
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| Abstract: | A set of experiments designed by the single factor test and the orthogonal test were carried out on a lab scale vacuum-freeze dryer.Effects of freezing rate,thickness of jujube tablets,freezing temperature and freezing time on pre-freezing of Zizyphus jujube were discussed,the best process conditions were gained as follows：freez-ing rate-1.0 ℃/min,sample thickness 8 mm,pre-freezing temperature-38 ℃,freezing time 210 min. |
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| Keywords: | Jujube Dates freeze-drying eutectic temperature |
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