食品科学 ›› 2006, Vol. 27 ›› Issue (11): 289-293.

• 工艺技术 • 上一篇    下一篇

绿芦笋真空冷冻干燥工艺研究

 王明空,  何俊萍,  王伟, 孙萍萍, 王晓莉   

  1. 河北农业大学食品科技学院
  • 出版日期:2006-11-15 发布日期:2011-11-28

tudy on Vacuum Freeze-drying Technology of Green Asparagus

 WANG  Ming-Kong,   He-Jun-Ping,   Wang-Wei, SUN  Ping-Ping, WANG  Xiao-Li   

  1. College of Food Science and Technology,Agricultural University of Hebei,Baoding 071001,China
  • Online:2006-11-15 Published:2011-11-28

摘要:  本研究以新鲜绿芦笋为对象,对其真空冷冻干燥过程的预冻工艺和干燥工艺进行了系统的研究。通过两因素对比试验和L9(34)正交试验,确定了预冻工艺参数为:预冻温度-20℃,预冻时间4h;干燥工艺参数为:工作压力55Pa,升华温度55℃,解析温度65℃。

关键词: 绿芦笋, 真空冷冻干燥, 工艺

Abstract:  The paper investigated the technological conditions of prefreezing and vacuum freeze-drying for preserving the green asparagus. Through two factors contrast design,it was sured that the optimum conditions of prefreezing are being freezed 4h at -20℃. The L9(34) orthogonal design showed that the optimum conditions of freeze-drying are: pressure 55Pa,temperature of sublimation 55℃ and temperature of resolution 65℃.

Key words: green asparagus, vacuum freeze-drying, technology