Preparation, Antibacterial, and Antioxidant Activities of Silver/Chitosan Composites

被引：47

作者：

Chen, Qunchao ^{[1
]}

Jiang, Hengjun ^{[1
]}

Ye, Hailv ^{[1
]}

Li, Jianrong ^{[2
]}

Huang, Jianying ^{[1
]}

机构：

[1] Zhejiang Gongshang Univ, Coll Food Sci & Biotechnol, Key Lab Fruits & Vegetables Postharvest & Proc Te, Hangzhou 310018, Peoples R China

[2] Bohai Univ, Coll Chem Chem Engn & Food Safety, Jinzhou 121003, Peoples R China

来源：

JOURNAL OF CARBOHYDRATE CHEMISTRY | 2014年 / 33卷 / 06期

基金：

美国国家科学基金会;

关键词：

Antibacterial activity; Antioxidant activity; Chitosan; Silver; Hybrid materials; NANOCOMPOSITE FILMS; CHITOSAN; SILVER; NANOPARTICLES; DERIVATIVES; CHITIN;

D O I：

10.1080/07328303.2014.931962

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Hybrid silver/chitosan composites were prepared and transmission electron microscopy (TEM) exhibited that silver nanoparticles were embedded in chitosan. The antibacterial activities of these composites were screened against Escherichia coli, Salmonella choleraesuis, Staphylococcus aureus, and Bacillus subtilis, which were much higher than that of chitosan. The TEM images of the treated bacteria showed that silver nanoparticles adhered to the bacterial cell surface and entered the interior of the cell, assuming that silver nanoparticles released from silver/chitosan composites could efficiently destroy the cell integrity of bacteria. Moreover, the composites exhibited higher antioxidant activity than chitosan based on the assessment of 2,2-diphenyl-1-picrylhydrazyl and hydroxyl radical scavenging and reducing power.

引用

页码：298 / 312

页数：15

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