食品科学 ›› 2008, Vol. 29 ›› Issue (4): 435-438.

• 包装贮运 • 上一篇    下一篇

改性壳聚糖的研究及其在金秋梨保鲜中的应用(英文)

 王明力, 陶希芹, 沈丹, 陈汝财   

  1. 发酵工程与生物制药贵州省重点实验室; 发酵工程与生物制药贵州省重点实验室; 绿色农药与农业生物工程教育部重点实验室;
  • 出版日期:2008-04-15 发布日期:2011-08-24

Study on Chitosan Modified and Its Application in Fresh-keeping of Jinqiu Pear

 WANG  Ming-Li, TAO  Xi-Qin, SHEN  Dan, CHEN  Ru-Cai   

  1. 1.Guizhou Provincial Key Laboratory of Fermentation Engineering and Biological Pharmacy; 2.Key Laboratory of Green Pesticide and Agricultural Biological Engineering, Ministry of Education
  • Online:2008-04-15 Published:2011-08-24

摘要: 采用纳米SiOx对壳聚糖进行改性得到复合涂膜,考察水蒸汽透过率、氧气透过率及抑菌性等指标。用改性后的壳聚糖对果蔬涂膜保鲜,并测试室温下的VC含量、保鲜时间和好果率。结果表明:壳聚糖纳米SiOx复合膜(CTS-SiOx)与壳聚糖单膜(CTS)相比,其水蒸气透过率下降35%、氧气透过率下降21%,复合涂膜抗菌效果明显,室温下果蔬保鲜时间得到明显延长,其中金秋梨由20d延长至60d,好果率为80%。

关键词: 纳米SiOx, 壳聚糖, 改性, 复合涂膜

Abstract: As the chitosan was modified with nano-SiOx, nano-SiOx / chitosan composite film was obtained. Water/oxygen permeability and antibacterial activity were investigated. Fresh-keeping ability of the chitosan films was evaluated by measuring contant of ascorbic acid, good fruits rate and storage life of Jinqiu pear at room temperature; The results showed: the water permeability and oxygen permeability decreased by 35% and 21% respectively, and the composite film has obvious antibacterial activity, and the shelf life of Jinqiu pear was prolonged from 20 to 60 days, and the good fruits rate percent was 80% after 60 days.

Key words: nano-SiOx, chitosan, modification, composite films