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静电喷雾法制备微胶囊化乳酸菌及其储存稳定性的研究

冯琼 李保国 刘畅 张灼阳 郭晓奎

食品与发酵工业2009,Vol.35Issue(9):54-57,4.
食品与发酵工业2009,Vol.35Issue(9):54-57,4.

静电喷雾法制备微胶囊化乳酸菌及其储存稳定性的研究

Preparation of Microencapsulated Lactobacilli by Electrostatic Spray and It's Storage Stability

冯琼 1李保国 1刘畅 2张灼阳 2郭晓奎2

作者信息

  • 1. 上海理工大学食品与生物技术研究所,上海,200093
  • 2. 上海交通大学医学院,病原生物学教研室,上海,200025
  • 折叠

摘要

Abstract

Lactobacilli were adsorbed in microporous starch and then encapsulated by the mixture of alginate-sodium and glutin with the method of electrostatic spray. The results showed that the viability of microencapsulated lactobacilli was the highest when absorbed with 6% microporous starch. The encapsulation efficiency reached 85. 88% at the ratio of the core volume to the wall volume being 1: 3. After treated by artificial gastric juice for 2 h,the viability of microencapsulated lactobacilli was 2 log more than that of control group. As microencapsulated lactobacilli were treated by artificial intestinal juice for 40 minutes,the microencapsulated lactobacilli was completely released. During the four weeks the milk drink with microencapsulated lactobacilli were stored in 4℃ refrigerator,the number of alive lactobacilli decreased a little,whereas for those without encapsulated lactobacilli and on the market,the number declined about 2 log. The conclusion is that microencapsulated lactobacilli has better storage stability.

关键词

乳酸菌/微胶囊/静电喷雾/微孔淀粉/储存稳定性

Key words

lactobacillus/microcapsule/electrostatic spray/microporous starch/storage stability

分类

轻工纺织

引用本文复制引用

冯琼,李保国,刘畅,张灼阳,郭晓奎..静电喷雾法制备微胶囊化乳酸菌及其储存稳定性的研究[J].食品与发酵工业,2009,35(9):54-57,4.

基金项目

上海市教委科研创新重点项目(09ZZ159)和上海市重点学科项目(S30503)资助. (09ZZ159)

食品与发酵工业

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