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。
[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.
出处
《安徽农业科学》
CAS
北大核心
2008年第31期13849-13850,13853,共3页
Journal of Anhui Agricultural Sciences
基金
国家863重点项目"加工水产品质量与安全控制技术"(2007AA091806)
上海市重点学科建设项目资助(T1102)
关键词
水蛭
冷冻干燥
工艺
过程优化
Hirudo breviformis
Freeze-drying
Technique
Optimization of process
