摘要
以马铃薯淀粉、普鲁兰多糖、明胶为成膜物质,甘油为增塑剂,阿魏酸为交联剂,采用流延法制备马铃薯淀粉基复合膜,研究了阿魏酸含量对复合膜物理机械性能的影响。结果表明:阿魏酸能够改善复合膜的机械性能和阻湿性能,减小复合膜的水溶性,但会显著降低复合膜的透光率,且使复合膜的颜色发黄。其中,添加1%阿魏酸的复合膜性能较好,其抗拉强度为14.33MPa,断裂伸长率为9.36%,水蒸气透过率为4.52g.mm.m^(-2).d^(-1).kPa^(-1),水溶性为28.46%,透光率为77.37%。
Potato starch-based composite films were obtained by casting using potato starch, pullulan, gelatin as film-forming material, glycerol as plasticizer,ferulic acid as cross-linking agent.The effect of the contents of ferulic acid on physical and mechanical properties of composite films were investigated.The results showed that ferulic acid improved the mechanical properties and moisture barrier properties of the composite films, reduced the water-solubility of the composite films. However, it reduced the light transmission rate of the composite films significantly,and made the color of the composite films yellow.The properties of composite films containing 1% ferulic acid were better, the tensile strength was 14.33MPa, elongation at break was 9.36%, water vapor permeability was 4.52g·mm·m^-2·d^-1·kPa^-1, water- solubility was 28.46%, light transmission rate was 77.37%.
出处
《食品工业科技》
CAS
CSCD
北大核心
2013年第7期82-85,共4页
Science and Technology of Food Industry
基金
中央高校基本科研业务费专项资金(JUSRP21115)
江南大学青年基金(2007LQN18)
中国包装总公司科技计划项目[2008]114号
