摘要
采用大豆蛋白、明胶为主要涂膜基质,添加TiO2、甘油为涂膜辅料,通过戊二醛溶液交联方式制备大豆蛋白基明胶复合涂膜剂对鸡蛋涂膜保鲜。结果表明,涂膜组与对照组相比,贮藏3周后对照组的鸡蛋失重率为6.31%,涂膜组失重率为4.16%(P<0.05),对照组鸡蛋哈氏单位为44.87,涂膜组为71.78,远远高于对照组,对照组的蛋清p H值从8.4上升9.59,涂膜组的蛋清pH值仅从8.4上升8.84。贮藏5周时对照组蛋黄指数为0.03,涂膜组蛋黄指数为0.24,贮藏6周后涂膜组总菌数约为800 cfu/g,低于对照组在贮藏2周时的总菌数水平。
Soy protein and gelatin were used as the main material in egg preservative coating, and adding TiOe and glycerin by solution crosslinking with glutaraldehyde. The results showed that after 3 weeks storage,the weight loss in coated eggs was 4.16% （P〈0.05）,while 6.31% in uncoated eggs,HU was 44.87 （71.78 in uncoated eggs）,far higher than control group. And pH of coated egg white rose from 8.4 to 8.84, while that of uncoated was from 8.4 to 9.59. After 5 weeks storage,the yolk index of coated group was 0.03 （0.24 in control group）. The total bacteria number of coated group was 800 cfu/g after 6 weeks storage,and lower than the control group during 2 weeks storage.
出处
《中国家禽》
北大核心
2015年第18期32-36,共5页
China Poultry
基金
国家自然科学基金面上项目(31271961)
国家自然科学基金青年项目(31101386)
东北农业大学博士启动基金(2012RCB02)
东北农业大学研究生科技创新基金(yjscx14067)
黑龙江省高校科技成果产业化前期研发培育项目(1253CGZH26)
