3种淡水鱼鳞明胶成膜性的比较

Comparison on filming properties of three fresh water fish scale gelatins

以水蒸气渗透率(WVP)、透明度、溶解度和透油率等性质为评价指标,研究淡水鱼(草鱼、鳙鱼、鲫鱼)鱼鳞明胶的成膜性能,研究其对哺乳动物皮(猪皮、牛皮)明胶膜的可替代性。结果表明:3种淡水鱼鱼鳞明胶膜的WVP均低于哺乳动物明胶膜,其中鲫鱼鱼鳞明胶膜的WVP最低;鱼鳞明胶膜的溶解度、透光度和透油率高于哺乳动物明胶膜,其中草鱼鱼鳞明胶膜的溶解度和透油率最高,鳙鱼鱼鳞明胶膜有最高的透光度但是透油率最低,鲫鱼鱼鳞明胶膜的溶解度、透光度最低。红外结果表明,不同明胶膜的结构相似,甘油的特征吸收峰表明甘油和哺乳动物明胶膜发生更多的交联。

Water vapor permeability （WVP） , transparency, solubility, oil permeability of film properties from fresh fish scales gelatin （grass carp, bighead carp, crucian carp） were studied in order to find out the possibility of mammalian skin gelatin film （pork skin, bovine skin） replacement. The result showed that fresh fish scales gelatin films had lower WVP than mammalian gelatin films, and crueian carp gelatin films exhibited lowest WVP. However, fish scale gelatin films showed higher solubility, transparency and oil permeability than mammalian gelatin films, and grass carp scales gelatin films showed highest solubility and oil permeability; bighead carp scales gelatin films exhibi- ted highest transparency but lowest oil permeability; crucian carp gelatin films had lowest solubility and transparency. FTIR spectra showed that the structure of films were similar, glycerol characteristic absorption peak showed more in- teractions between glycerol and mammalian films than with fish scale films.