仿生纳米复合膜透CO_2性能及应用研究  

Research of the CO_2 Permeability and Application of the Bionic-chitosan Nanometer Composite Membrane

作　　者：袁志[1] 胡敏[1] 陈万明[1] 娄阳[1] 

机构地区：[1]贵州工业职业技术学院化学与材料工程学院,贵州贵阳550008

出　　处：《广东化工》2014年第18期76-78,82,共4页Guangdong Chemical Industry

基　　金：贵州省贵州工业职业技术学院项目"仿生保鲜膜在果蔬表面微环境中的信号分子诱导应用机理研究"[2014ZK02];国家自然科学基金项目"纳米SiOX对壳聚糖涂膜性能影响及果蔬保鲜机理的研究;"[Z101027]

摘　　要：优化仿生纳米复合膜透CO2性,并将其应用于草莓保鲜实验。结果表明,仿生纳米复合膜最佳配方为:壳聚糖含量2 g,纳米SiO2含量0.07 g,冰乙酸含量1.4 mL,且透CO2量达到最低为0.0909 g/d;优化膜处理的草莓低温4℃下贮藏11天后,腐烂指数比空白组降低了23.9%。这证明,优化膜处理可有效延长草莓低温下的贮藏保鲜时间。The bionic-chitosan nanometer composite membrane was optimized about CO2 permeability, and the optimized composite membrane was applied in fresh-keeping strawberries. The results shows that the best formula of the bionic-chitosan nanometer composite membrane is 2 g for chitosan content, 0.07 g for nano-TiO2, content, 1.4 mL for glacial acetic acid content, and the CO2 coefficient of optimized membrane permeability is 0.0909 g/d. Strawberries of coating the optimized membrane were stored up eleven days at low temperature 4 ℃, decay index of strawberries of coating optimized membrane than decay index of strawberries of uncoated membrane is decreased 23.9 %.The result prove that the storage period of strawberries were prolonged at low temperature by coating optimized membrane.

关 键 词：纳米SIO2 仿生纳米复合膜 草莓 保鲜 

分 类 号：TS202.3[轻工技术与工程—食品科学]