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| 黄瓜真空冷冻干燥工艺参数优化 | |
| 引用本文： | 郭树国,王丽艳,李成华. 黄瓜真空冷冻干燥工艺参数优化[J]. 食品研究与开发, 2012, 33(1): 232-234 |
| 作者姓名： | 郭树国 王丽艳 李成华 |
| 作者单位： | 1. 沈阳化工大学机械工程学院,辽宁沈阳110142;沈阳农业大学工程学院,辽宁沈阳110161 2. 沈阳化工大学机械工程学院,辽宁沈阳,110142 3. 沈阳农业大学工程学院,辽宁沈阳,110161 |
| 摘 要： | 为了确定真空冷冻干燥的工艺参数,采用电阻法测量黄瓜真空冷冻干燥的物料共晶点,并应用正交试验,以冻干品干燥速率标进行评定考察冻干效果,优化真空冷冻干燥工艺参数。结果表明:黄瓜真空冷冻干燥物料的共晶点温度为-24.0℃,加热温度为50℃、物料厚度为4 mm、干燥室压力为60 Pa,应用该优化的技术工艺可达到最大干燥速率。 |
| 关 键 词： | 真空冷冻干燥 优化 干燥速率 |
Optimization on Technological Parameters of Vacuum Freeze-drying |
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| GUO Shu-guo , WANG Li-yan , LI Cheng-hua. Optimization on Technological Parameters of Vacuum Freeze-drying[J]. Food Research and Developent, 2012, 33(1): 232-234 | |
| Authors: | GUO Shu-guo WANG Li-yan LI Cheng-hua |
| Affiliation: | 1.The College of Engineering,Shenyang University of Chemical Technology,Shenyang 110142,Liaoning,China; 2.The College of Engineering,Shenyang Agricultural University,Shenyang 110161,Liaoning,China) |
| Abstract: | In order to confirm the optimum technological parameter in vacuum freeze-drying of cucumber,experiments were conducted with cucumber.The eutectic point of cucumber was determined by electrical resistance method in the vacuum freeze-drying.The technologies of the vacuum freeze-drying of cucumber were optimized with the orthogonal experiments,and according to evaluating the effects of the velocity of vacuum freeze-drying indexes in the process.The results showed that the eutectic point of cucumber were-24 ℃ in the vacuum freeze-drying.The optimized combination of factors is heating temperature 50 ℃,material thickness 4 mm,pressure of drying house 60 Pa.With the optimal technology,the velocity of vacuum freeze-drying could be saved as far as possible. |
| Keywords: | vacuum freeze drying optimization velocity of vacuum freeze-drying |
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