摘要
以大豆分离蛋白为主要原料,在一定条件下与增塑剂、还原剂等发生共价交联反应,通过单因素实验和正交实验对成膜配方、成膜条件的研究及微观结构分析,制备出可以降解,并具有一定机械强度的复合蛋白薄膜,可部分替代塑料用于食品包装领域,减少环境污染。研究结果表明,采用亚克力材质板槽制膜,60℃干燥时间2h;成膜配方是大豆分离蛋白浓度4.0%,增塑剂2.0%,还原剂0.1%;抗拉强度可达61.892N,透H2O性16.204mg/(cm2.d),透O2性0.313mg/(cm2.d),透CO2性2.899mg/(cm2.d)。
Soy protein isolate, as the main raw material, occured covalent cross-linking reaction with plasticizer, reducing agent under certain conditions. The filming formula, filming conditions, microstructure analysis were determined through single-factor experiment and orthogonal test.The compound protein film was prepared with degradation, some mechanical strength. It is a kind of green packaging materials of development prospects.The results showed that acrylic materials mold plate groove was used to film at temperature of 60% for 2h and the optimum filming conditions were that soy protein isolate 4.0%, plasticizer 2.0%, reducing agent 0.1%, tensile strength 61.892N, water permeability 16.204mg/（ cm2 · d）, oxygen permeability 0.313mg/（ cm2 · d ）, carbondioxide permeability 2.899 mg/（ cm2 · d）.
出处
《食品工业科技》
CAS
CSCD
北大核心
2010年第2期295-299,共5页
Science and Technology of Food Industry
基金
黑龙江省科技攻关计划(国际合作)项目资助(WB07A01)
哈尔滨市科技创新人才研究专项资金项目(2007RFQXN015)
关键词
大豆分离蛋白
薄膜
性能
制备
soy protein isolate
film
properties
preparation
