载Nisin壳聚糖淀粉复合膜的研制及抑菌效果评价  

Preparation and bacteriostasis performance evaluation of chitosan and starch compound film loading Nisin

作　　者：李迪[1,2] 孙庆申[1,2] 于艳梅[1,2] 韩德权[1,2] 杜易阳[1,2] 张颍[1] 王美青[1] 王汝[1] 张雅琼[1] 侯丽娟[1] 

机构地区：[1]黑龙江大学生命科学学院微生物黑龙江省高校重点实验室,哈尔滨150080 [2]黑龙江大学农业微生物技术教育部工程研究中心,哈尔滨150500

出　　处：《黑龙江大学自然科学学报》2012年第6期811-816,共6页Journal of Natural Science of Heilongjiang University

基　　金：国家自然科学基金资助项目(31000773);黑龙江大学杰出青年科学基金资助项目(201105);黑龙江大学第十届学生学术科技创新项目(121426)

摘　　要：以壳聚糖和淀粉为主要成膜材料,通过向其中添加乳酸链球菌素(Nisin)制备可食性抗菌薄膜,并对膜的结构和抗菌性能进行了评价。载Nisin的壳聚糖淀粉复合膜表面及截面的扫描电镜结果显示,Nisin与膜液有一定的相容性,但是Nisin的添加不同程度地降低了壳聚糖淀粉膜的抗拉强度。载Nisin壳聚糖淀粉膜对细菌中的大肠杆菌和金黄色葡萄球菌均有不同程度的抑制作用。该研究为开发安全、可降解的食品保鲜材料提供一定的理论基础。The Nisin-loaded edible fihns with antibacterial features were prepared using chitosan and starch as film- formers. The structural features and bacterial-static capabilities of the films were characterized and evaluated. The scanning electrical microsopy （SEM） results showed that there were some compatibilities in the Nisin-loaded chi- tosan/starch compound films. However, the tensile strength of the Nisin-loaded films was lower than that of the blank fihns. The Nisin-loaded chitosan/starch fihns showed bacterial-static effects against both Escherichia coli and Staphylococcus areus. This study provides a theoretical basis for developing safe, biodegradable materials used for food refreshing.

关 键 词：壳聚糖 淀粉 乳酸链球菌素 抑菌 

分 类 号：TS201.2[轻工技术与工程—食品科学]