食品科学 ›› 2018, Vol. 39 ›› Issue (7): 243-248.doi: 10.7506/spkx1002-6630-201807036

• 包装贮运 • 上一篇    下一篇

鲢鱼皮明胶-海藻酸钠复合膜的制备与性能

郭开红1,2,张蕾蕾1,2,吴晓翠3,熊善柏1,2,胡筱波1,2,*   

  1. 1.华中农业大学食品科学技术学院,湖北 武汉 430070;2.华中农业大学食品科学技术学院,教育部环境食品学重点实验室,湖北 武汉 430070;3.湖北省兽药监察所,湖北 武汉 430070
  • 出版日期:2018-04-15 发布日期:2018-04-17
  • 基金资助:
    中央高校基本科研业务费专项资金项目(2662016py092);湖北省自然科学基金项目(2013CFB196);国家现代农业(大宗淡水鱼类)产业技术体系建设专项(CARS-45-27)

Preparation and Properties of Silver Carp Skin Gelatin-Sodium Alginate Composite Films

GUO Kaihong1,2, ZHANG Leilei1,2, WU Xiaocui3, XIONG Shanbai1,2, HU Xiaobo1,2,*   

  1. 1. College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; 2. Key Laboratory of Environment Correlative Dietology, Ministry of Education, College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; 3. Institute of Veterinary Drug Supervision of Hubei Province, Wuhan 430070, China
  • Online:2018-04-15 Published:2018-04-17

摘要: 鲢鱼皮明胶膜因具有安全性高和来源丰富等优点受到广泛关注。然而鲢鱼皮明胶膜的力学性能和阻隔性能 较差,若作为食品包装膜将会受到限制。为了改善鲢鱼皮明胶膜的性能,将海藻酸钠与鲢鱼皮明胶共混制成复合 膜。结果发现,制成的复合膜外观透亮,有阻隔紫外线和油脂的性质;当添加体积分数为20%的海藻酸钠时,复合 膜的水溶性和水蒸气透过率达到最小,抗拉强度达到最大。说明复合膜的阻隔性能和力学性能都优于鲢鱼皮明胶 膜。对膜的傅里叶变换红外光谱图和X射线衍射图进行分析,表明鲢鱼皮明胶和海藻酸钠存在较强的相互作用,这 可能是复合膜性能发生变化的主要原因。

关键词: 鲢鱼皮明胶, 海藻酸钠, 复合膜, 相互作用

Abstract: Silver carp skin gelatin film has aroused wide attention due to its unique advantages including high safety and easy availability. However, the application of pure silver carp skin gelatin film in the food packaging industry is hampered due to its poor mechanical and barrier properties. In order to improve the properties of the film, the fish skin gelatin and sodium alginate were mixed to obtain composite films. The results showed that the composite films had a translucent appearance and could provide a shield against ultraviolet light and oil. The composite films with 20% sodium alginate had minimum water solubility and water vapor permeability and maximum tensile strength, suggesting that barrier properties and mechanical properties of the composite films were better than those of pure fish skin gelatin film. Fourier transform infrared (FT-IR) spectra and X ray diffraction results revealed a strong interaction between fish skin gelatin and sodium alginate, which may be the major cause of changes in the properties of the composite films.

Key words: silver carp skin gelatin, sodium alginate, composite film, interaction

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