食品科学 ›› 2005, Vol. 26 ›› Issue (7): 231-234.

• 包装贮运 • 上一篇    下一篇

湿冷贮藏对冬枣软化水解酶活性影响的研究

 刘晓军, 刘晓娜, 邹东云, 王群   

  1. 农业部规划设计研究院,中国农业大学食品科学与营养工程学院
  • 出版日期:2005-07-15 发布日期:2011-09-19

Study on the Change of Softening Hydrolytic Enzyme Activity of Winter-jujube during Humidicool Storage

 LIU  Xiao-Jun, LIU  Xiao-Na, ZOU  Dong-Yun, WANG  Qun   

  1. 1.Academy of Planning and Designing of the Ministry of Agricultural; 2.College of FoodScience and Nutritional Engineering, China Agricultural University
  • Online:2005-07-15 Published:2011-09-19

摘要: 软化是冬枣贮藏中存在的主要问题之一,研究了湿冷贮藏对冬枣不溶性果胶含量和果胶甲酯酶(PME)活性、可溶性果胶含量和多聚半乳糖醛酸酶(PG)活性、纤维素含量和纤维素酶(Cx-cellulases)活性、淀粉含量和淀粉酶活性的影响。结果表明:湿冷贮藏可以延缓冬枣不溶性果胶含量、淀粉含量、PG活性的下降速度,降低可溶性果胶含量、PME活性、Cx-cellulases活性、淀粉酶活性的上升速度,而纤维素含量则表现为先慢后快的增长规律。

关键词: 软化, 冬枣, 湿冷贮藏, 保鲜技术, 酶活性

Abstract: Softening was one of the main problems in the storage of winter-jujube. In the humidicool storage, the insoluble pectincontent and pectinmethylesterases (PME) activity, soluble pectin content and polygalactouronase (PG) activity, cellulosecontent and Cx-cellulases activity, starch content and amylase activity of half-red Winter-jujube(Ziziphus jujuba Mill) wereassayed. Results showed that the humidicool storage could retard the decreasing rate of insoluble pectin content, starch contentand PG activity of Winter-jujube, inhibit the increasing of soluble pectin content, PME activity, Cx-cellulases activity andamylase activity, and accelerate late accumulation of cellulose content.

Key words: softening, winter-jujube, humidicool storage, keeping fresh technology, enzyme activity