丙酸钙改性聚乙烯醇包装薄膜性能研究  

Study on properties of calcium propionate modified polyvinyl alcohol packaging films

作　　者：蒋硕[1] 杨福馨[1] 张燕[1] 黄志英 欧丽娟[1] 杨辉[1] 

机构地区：[1]上海海洋大学食品学院,上海201306

出　　处：《食品工业科技》2015年第2期308-312,共5页Science and Technology of Food Industry

基　　金：国家高技术研究发展863计划基金资助(2012AA0992301);上海市科委工程中心建设资助(11D22280300);上海高校一流学科建设项目资助

摘　　要：研究经（0~2.5g/100m L）丙酸钙改性后的聚乙烯醇包装薄膜的各项包装性能和抗菌性能,结果发现,丙酸钙与聚乙烯醇薄膜相容性好,有良好的耐热性,丙酸钙的添加增加了薄膜的抗拉强度,降低了薄膜的断裂伸长率,影响了其光学性能,增加了薄膜的水蒸气透过系数、溶胀率和溶解率,提高了薄膜的热封温度。添加量为2.5g/100m L的丙酸钙改性薄膜对蜡样芽孢杆菌、大肠杆菌、米曲霉菌产生了一定的抑菌效果。经丙酸钙改性后的聚乙烯醇薄膜有良好的包装性能和一定的抑菌性,可以作为一种新型的食品内包装材料。Different concentrations（0~2.5g/100 m L） calcium propionate were adding on polyvinyl alcohol（PVA） to prepare the calcium propionate modified polyvinyl alcohol packaging films.The results showed that calcium propionate had a good compatibility with the polyvinyl alcohol films,and the films had a good heat resistance.Calcium propionate increased the tensile strength,water vapor permeation coefficient,swelling ratio and dissolution rate of the films;reduced the breaking elongation of the films and affected the optical properties,the sealing temperature of the films.Concentration of 2.5g/100 m L calcium propionate modified film produced a certain inhibitory effect on Bacillus cereus,E. coli,Aspergillus oryzae. Calcium propionate modified polyvinyl alcohol films had a good packaging performance and some antibacterial properties,could be used as a novel food packaging material.

关 键 词：食品包装 薄膜 聚乙烯醇 丙酸钙 

分 类 号：TS206[轻工技术与工程—食品科学]