食品科学 ›› 2004, Vol. 25 ›› Issue (8): 94-97.

• 工艺技术 • 上一篇    下一篇

猕猴桃果浆真空冷冻干燥工艺优化研究

 李忠宏, 杨公明   

  1. 西北农林科技大学食品科学与工程学院
  • 出版日期:2004-08-15 发布日期:2011-10-24

Optimization on Freeze-Drying of Kiwifruit Pulp

 LI  Zhong-Hong, YANG  Gong-Ming   

  1. College of Food Science and Engineering, Northwest Sci-tech Univ. of Agri. and For.
  • Online:2004-08-15 Published:2011-10-24

摘要: 以猕猴桃果浆冻干过程中VC、叶绿素损失率和冻干时间为指标,对真空冷冻干燥过程进行优化,得到的最佳工艺参数为:物料解吸时的表面最高温度48℃,升华初始干燥仓压力26Pa,装料厚度7mm。最佳工艺条件下,VC、叶绿素的损失率预报值分别为6%和38%,冻干时间为18h。

关键词: 猕猴桃, 真空冷冻干燥, 工艺优化, VC, 叶绿素

Abstract: The optimal processing data of kiwifruit were derived based on the loss ratios of VC and chlorophyll and freeze-drying time. They were: the highest temperature of the pulp surface 48℃, air pressure of the chamber 26Pa and thickness of pulp7mm. Under these conditions, the loss ratios of VC and chlorophyll were about 6% and 38%, respectively freeze-drying time wasabout 18h.

Key words: kiwifruit, freeze-drying, optimal processing, VC, chlorophyll