香兰素对大豆分离蛋白膜抗菌作用的影响  

Effects of Vanillin on Antimicrobial Activity of Soy Protein Isolated Film

作　　者：陈默[1] 胡长鹰[2] 王志伟[1] 吴希阳[2] 王平利[2] 

机构地区：[1]江南大学,无锡214122 [2]暨南大学,广州510632

出　　处：《包装工程》2008年第10期83-85,共3页Packaging Engineering

基　　金：广东省自然科学基金项目(07005952);珠海市科技计划项目(PB200510B)

摘　　要：对香兰素和香兰素添加到大豆分离蛋白膜后的抑菌效果进行研究。实验表明:香兰素有抑制大肠杆菌和金黄色葡萄球菌的作用。香兰素对受试菌的半数最低抑菌浓度(MIC50)分别是1500、2100mg/L。在抑菌率和抑菌圈实验中,香兰素-大豆分离蛋白膜表现出一定的抑菌活性,MIC50分别是2500、3000mg/L,其略低于游离状态香兰素的活性。Soy protein isolate （SPI） films were prepared with vanillin and their antimicrobial activity was studied. The result indicated that vanillin has certain antimicrobial effect against escherichia coli and staphylococcus aureus, MICs50 were 0.15% and 0.21%. The test of antimicrobial rate and zones of inhibition suggested that antimicrobial activity of vanilla was expressed in SPI based film, the MICs50 were 0. 25% and 0.30%, the activity was lower than vanilla itself.

关 键 词：大豆分离蛋白 大豆分离蛋白膜 香兰素 抑菌活性 

分 类 号：TB43[一般工业技术] TB487