4.7 Article

Effect of starch aldehyde-catechin conjugates on the structural, physical and antioxidant properties of quaternary ammonium chitosan/polyvinyl alcohol films

期刊

FOOD HYDROCOLLOIDS
卷 124, 期 -, 页码 -

出版社

ELSEVIER SCI LTD
DOI: 10.1016/j.foodhyd.2021.107279

关键词

Active packaging; Catechin conjugate; Films; Polyvinyl alcohol; Quaternary ammonium chitosan

资金

  1. National Natural Science Foundation of China [31571788]

向作者/读者索取更多资源

The stability of catechin in active packaging films was improved by conjugating catechin with starch aldehyde. The resulting starch aldehyde-catechin conjugates enhanced the physical and antioxidant properties of the films. These films showed great potential in peanut oil packaging by effectively reducing peroxide values and thiobarbituric acid reactive substance levels.
The application of catechin in active packaging films is restricted by the low stability of catechin. In this study, the stability of catechin was elevated by conjugating catechin with starch aldehyde. The obtained starch aldehyde-catechin conjugates were added into quaternary ammonium chitosan (QAC)/polyvinyl alcohol (PVA) blend to prepare active packaging films. The structural, physical and antioxidant properties of QAC/PVA films containing starch aldehyde-catechin conjugates were determined. Results showed starch aldehyde-catechin conjugates formed hydrogen bonding with QAC/PVA film matrices and changed the uniformity of films. After starch aldehyde-catechin conjugates were added into films, the water vapor permeability, tensile strength and elongation at break of films were increased by 2.51%-16.03%, 11.73%-20.15% and 0.78%-12.15%, respectively; whereas the oxygen permeability of films was reduced by 6.67%-53.33%. Starch aldehyde-catechin conjugates increased the 2,2-diphenyl-1-picrylhydrazyl and 2,2 '-azino-bis-(3-ethylbenzothiazoline-6-sulfonic acid) radical scavenging efficiencies of films by 852.3%-995.5% and 599.5%-669.3%, respectively. The developed films were used to package peanut oil at 37 degrees C for 28 days. As compared with oil packaged in QAC/ PVA film, oil packaged in QAC/PVA films containing starch aldehyde-catechin conjugates showed significantly lower peroxide values and thiobarbituric acid reactive substance levels. Results suggested QAC/PVA films containing starch aldehyde-catechin conjugates had a good potential in peanut oil packaging.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据