| 纳米ZnO/PVC保鲜膜抑菌性能及应用研究 |
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| 引用本文： | 李喜宏,李伟丽,张培培,张兴亮,刘丽杰.纳米ZnO/PVC保鲜膜抑菌性能及应用研究[J].包装工程,2009,30(10). |
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| 作者姓名： | 李喜宏 李伟丽 张培培 张兴亮 刘丽杰 |
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| 作者单位： | 天津科技大学,天津,300457;天津科技大学,天津,300457;天津科技大学,天津,300457;天津科技大学,天津,300457;天津科技大学,天津,300457 |
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| 基金项目： | 国家“十一五”支撑计划项目(2006BAD22B12) |
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| 摘 要： | 研究了钠米ZnO/PVC膜对大肠杆菌和金黄色葡萄球菌的体外抑菌作用及对苹果切片防腐保鲜效果,以及纳米ZnO含量、溶液pH值、培养条件(无光和光照)等对纳米膜抑菌能力的影响。结果表明:添加纳米ZnO/PVC膜的菌悬液,光照振荡培养4h,大肠杆菌菌落总数减少大半;纳米膜中ZnO粒子含量越高,抑菌效果越好,且该膜对金黄色葡萄球菌的抑制作用高于大肠杆菌;纳米ZnO/PVC膜在不同酸碱度环境中抑菌性能稳定;纳米ZnO/PVC包装可以延缓苹果切片的褐变、腐烂,保持生理品质,常温贮藏3d,果实总酚含量高于对照组。
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| 关 键 词： | 纳米ZnO PVC膜 抑菌性能 包装 应用 |
Bactericidal Property and Application of Nano-ZnO Coated PVC Fresh-keeping Packaging Film |
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| LI Xi-hong,LI Wei-li,ZHANG Pei-pei,ZHANG Xing-liang,LIU Li-jie.Bactericidal Property and Application of Nano-ZnO Coated PVC Fresh-keeping Packaging Film[J].Packaging Engineering,2009,30(10). |
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| Authors: | LI Xi-hong LI Wei-li ZHANG Pei-pei ZHANG Xing-liang LIU Li-jie |
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| Affiliation: | LI Xi-hong,LI Wei-li,ZHANG Pei-pei,ZHANG Xing-liang,LIU Li-jie(Tianjin University of Science & Technology,Tianjin 300457,China) |
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| Abstract: | The antibacterial activity of nano-ZnO coated PVC film against E.coli and S.aureus in vitro and its preservative effect on apple slice was investigated.The influence factors including the content of nano-ZnO,solution pH value,the outside cultivation conditions were tested to clarify the antimicrobial ability of the nano-ZnO film.The results showed that the cells of E.coli suspension in the surface with nano-ZnO coated PVC film were found to decrease more than a half after 4h under light;the higher content o... |
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| Keywords: | nano-ZnO PVC film antibacterial property packaging application |
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