不同包装薄膜中食品风味物质吸附扩散的研究  

Study on Adsorption and Diffusion of Food Flavor Substances in Different Packaging Films

作　　者：孙彬青[1,2] 卢立新[1] SUN Bin-qing;LU Li-xin(Department of Packaging Engineering,Jiangnan University,Wuxi 214122,China;Department of Packaging Engineering,Tianjin University of Science and Technology,Tianjin 300222,China)

机构地区：[1]江南大学包装工程系,江苏无锡214122 [2]天津科技大学包装工程系,天津300222

出　　处：《塑料工业》2019年第11期98-101,133,共5页China Plastics Industry

基　　金：国家自然科学基金项目(31101376);天津市自然科学基金项目(18JCTPJC57400)

摘　　要：利用双面薄膜吸附法,研究了D-柠檬烯、月桂烯、己酸乙酯、2-壬酮、芳樟醇等五种食品风味物质在低密度聚乙烯(LDPE)薄膜、双向拉伸聚丙烯(BOPP)薄膜、流延聚丙烯(CPP)薄膜和聚乙烯(PE)黑白膜四种不同包装薄膜中的吸附扩散性能,并基于Fick第二定律的数学模型进一步分析了风味物质在不同包装薄膜中的扩散系数。结果表明,D-柠檬烯等风味物质在LDPE膜、BOPP膜、CPP膜和PE黑白膜中的扩散均符合Fick第二定律扩散规律;四种薄膜材料中,PE黑白膜对五种风味物质均具有最大的平衡吸附量和扩散系数。The adsorption and diffusion of five flavor organic molecules(D-limonene,myrcene,ethyl hexanoate,2-nonanone and linalool)were studied in four different packaging materials of low density polyethylene(LDPE),biaxially oriented polypropylene(BOPP),casting polypropylene(CPP)and polyethylene(PE)black-and-white membranes by two-sided immersion experiment.Based on Fick s second law,the diffusion coefficients of flavor substances in different packaging films were further analyzed.The results show that the diffusion of five flavor substances in LDPE,BOPP,CPP and PE black-and-white films conforms to Fick s second law.Among the four film materials,PE black-and-white membrane has the largest equilibrium adsorption amount and diffusion coefficient for all five flavor substances.

关 键 词：食品包装 风味物质 包装薄膜 吸附 扩散 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业]