Physical properties and antioxidant activity of an active film from chitosan incorporated with green tea extract

被引：914

作者：

Siripatrawan, Ubonrat ^{[1
]}

Harte, Bruce R. ^{[2
]}

机构：

[1] Chulalongkorn Univ, Fac Sci, Dept Food Technol, Bangkok 10330, Thailand

[2] Michigan State Univ, Sch Packaging, E Lansing, MI 48824 USA

来源：

FOOD HYDROCOLLOIDS | 2010年 / 24卷 / 08期

关键词：

Active packaging; Chitosan film; Green tea polyphenols; Film properties; Antioxidant activity; NATURAL ANTIOXIDANTS; SHELF-LIFE; QUALITY; LEAVES; GELATIN; STORAGE; OILS;

D O I：

10.1016/j.foodhyd.2010.04.003

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

An active film from chitosan incorporated with aqueous green tea extract (GTE) was developed. The effects of GTE concentrations including 2, 5, 10 and 20% (w/v) of green tea in the film-forming solution on the film properties were determined by measuring physical properties, total polyphenolic content and antioxidant activity of the active films. Fourier Transform Infrared (FTIR) spectrometry was carried out to observe the potential modifications of the chitosan films when incorporated with GTE. The results suggested that incorporation of GTE into chitosan films improved mechanical and water vapor barrier properties and enhanced polyphenolic content and antioxidant activity of the films. Changes in the FTIR spectra of the chitosan films were observed when GTE was incorporated, suggesting some interactions occurred between chitosan and the polyphenols from GTE. This study showed the benefits of incorporation of GTE into chitosan films and the potential for using the developed film as an active packaging. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：770 / 775

页数：6

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