| 水蛭冷冻干燥过程优化及最佳工艺条件的确立 |
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| 引用本文： | 韩志,谢晶.水蛭冷冻干燥过程优化及最佳工艺条件的确立[J].安徽农业科学,2008,36(31). |
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| 作者姓名： | 韩志 谢晶 |
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| 作者单位： | 上海海洋大学食品学院,上海,200090 |
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| 基金项目： | 国家高技术研究发展计划(863计划)
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上海市重点学科建设项目
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| 摘 要： | 目的]为水蛭的深加工提供可靠依据。方法]以宽水蛭(Hirudo breviformis)为试验材料,在试验用冷冻干燥机上对其进行干燥,选择加工水蛭的最佳工艺参数。结果]结果表明,最佳工艺参数为:冻结时间5.2 h、冻结终点温度-27℃、冷阱温度-70~-45℃、真空度4~30 Pa、水蛭冻干最终温度30℃、含水量低于5%、干燥时间16.0 h时,冻干产品的含水量为2.19%。真空冷冻干燥的水蛭保持了原有的色泽和形状。结论]该方法可有效抑制热敏物质的变质,为水蛭的深加工提供可靠依据。
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| 关 键 词： | 水蛭 冷冻干燥 工艺 过程优化 |
Establishing of Optimal Technique for Freeze-drying Processing of Hirudo breviformis |
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| Abstract: | Objective] The study aimed to provide credible basis for deeply processing of Hirudo breviformis.Method]With Hirudo breviformis in 2 years old as experiment materials,Hirudo breviformis were dried in vacuum freeze-drying equipment to establish the optimum technics parameter.Result]The results indicated that water content of freeze-drying product was 2.19% under the optimum technics parameters which were freezing time of 5.2 h,terminal freezing temperature of-27 ℃,cryotrap temperature of-70——45 ℃,pressure of drying room of 4-30 Pa,freeze-drying terminal temperature of Hirudo breviformis of 30 ℃,water content less than 5%,and freeze-drying time of 16.0 h.The freeze-drying Hirudo breviformis in vacuum kept the inherent color and shape.Conclusion]This method can effectively control the deteroprate of substances which are sensitive to heat.At the same time,it will provide reliable theoretical evidences for further development of Hirudo breviformis. |
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| Keywords: | Hirudo breviformis Freeze-drying Technique Optimization of process |
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