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当前位置: 首页 > 文章 > 可食性狭鳕鱼皮明胶-褐藻胶复合膜的性质与结构表征 食品工业科技 2009 (10) 275-278
Position: Home > Articles > Property and structure of the edible walleye pollock(Theragra chalcogramma) skin gelatin/alginate composite films Science and Technology of Food Industry 2009 (10) 275-278

可食性狭鳕鱼皮明胶-褐藻胶复合膜的性质与结构表征

作  者：
陈丽;李八方;赵雪;张朝辉;庄永亮;闫鸣艳
单  位：
中国海洋大学食品科学与工程学院
关键词：
鱼皮明胶;褐藻胶;复合膜;相容性
摘  要：
采用狭鳕鱼皮明胶与褐藻胶共混法制备可食性复合膜,以改善鱼皮明胶膜的性能。结果表明:狭鳕鱼皮明胶具有很好的成膜性,但是其力学性能和热稳定性较低,阻水性差。褐藻胶与鱼皮明胶混合后,二者相容性较好,复合膜的透光率达80%以上,力学性能增大,添加60%褐藻胶后,膜的抗拉强度和伸长率分别提高67.4%和112.6%,热变性温度提高8℃,水溶性和吸湿性都显著降低,说明复合膜的力学性能、热稳定性和阻水性都明显优于两种单一膜。红外光谱、X射线衍射和扫描电镜对其结构进行表征,表明两者通过化学结合生成了新的大分子化合物,得到稳定的复合膜。
译  名：
Property and structure of the edible walleye pollock(Theragra chalcogramma) skin gelatin/alginate composite films
作  者：
CHEN Li,LI Ba-fang,ZHAO Xue,ZHANG Zhao-hui,ZHUANG Yong-liang,YAN Ming-yan(College of Food Science and Engineering,Ocean University of China,Qingdao 266003,China)
关键词：
fish gelatin;alginate;composite films;compatibility
摘  要：
The walleye pollock(Theragra chalcogramma) and alginate were mixed to make edible composite films,it improved the properties of the fish gelatin films. Fish gelatin had good filmogenic property,but its mechanical property and thermal stability were both lower,water resistance were worse. Fish gelatin was miscible with alginate and the gelatin/alginate composite films which had excellent optical transmittance(higher than 80%). The mechanical properties of film were increased,the addition of 60% alginate increased the tensible strength and elongation at break to 67.4% and 112.6%. The thermal denaturation temperature of gelatin/alginate composite films was 8℃ higher than fish gelatin film. The water solubility and hygroscopicity were evidently decreased. The results suggested that fish gelatin/ alginate composite films exhibited better mechanical property,thermal stability and water resistance than fish gelatin film. FTIR,X-ray and SEM analysis revealed that alginate effectively interacted with fish gelatin to form a new macromolecule,and fish gelatin/ alginate composite films had stable structure.

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