食品工业科技2012，Vol.33Issue(10)：257-259,3.
不同干燥方法对栀子黄色素品质的影响
Effect of different drying techniques on the properties of Gardenia yellow pigment
摘要
Abstract
Spray drying,freeze drying and low-temperature vacuum drying were selected for the dehydration of Gardenia yellow pigment solutions.Through the comparison of the qualities and microcosmic morphology of Gardenia yellow pigment powder,it was found that the products＇ moisture content,color value and color difference dealt with spray drying,freeze drying and low-temperature vacuum drying were 2.89%,5.13% and 5.94%,82.3,88.5 and 87.9,81.79,73.63 and 73.88.SEM showed that the spray-dried powder had a uniform microscopic form of concave spherical.Meanwhile,the powder dried by low-temperature vacuum drying and freeze drying were in various shapes and irregular.Finally the energy consumption of three different drying methods were computed,spray drying got the lowest energy consumption and followed by low-temperature vacuum drying and freeze drying.In consideration of product quality and economic efficiency,low-temperature vacuum drying was suitable for drying of natural pigments.关键词
栀子黄色素/干燥/色价/色差/能耗Key words
Gardenia yellow pigment/drying/color value/color difference/energy consumption分类
轻工纺织引用本文复制引用
刘伟,黄立新,张彩虹,谢普军..不同干燥方法对栀子黄色素品质的影响[J].食品工业科技,2012,33(10):257-259,3.基金项目
国家863项目 （）
国家林业局重点科研项目 （）
中国林科院林业新技术研究所基本科研业务费专项基金 （）
