多糖对鲢鱼皮胶原蛋白膜性能的影响
详细信息Effect of polysaccharide on the property of silver carp (Hypophthalmichthys molitrix) skin collagen film
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摘要: 以鲢鱼皮胶原蛋白和不同多糖为原料制备胶原蛋白-多糖共混膜,通过测定膜的抗拉强度、断裂伸长率、水蒸气透过率、透光率、水溶性等指标,研究多糖对胶原蛋白膜性能的影响。结果表明,壳聚糖/胶原蛋白共混膜的综合性能最佳,当胶原蛋白和壳聚糖的比例为3∶1时,共混膜的力学性能最佳,此时膜的抗拉强度为35.47MPa、断裂伸长率为25.87%,水蒸气透过率、透光率、水溶性较单一胶原蛋白膜有明显的改善。红外光谱、X射线衍射和扫描电镜对其结构进行表征表明,共混膜中胶原蛋白和壳聚糖具有良好的相容性,两者之间存在相互作用。Abstract: Silver carp skin collagen/polysaccharide blend films were prepared by solvent-casting method with silver carp skin collagen and polysaccharide. Tensile strength (TS) , percentage elongation at break (EAB) , water vapor permeability (WVP) , light transmittance and water solubility were determined. The result showed that collagen/chitosan blend film had the best property, and the optimal ratio of collagen and chitosan for preparation blend film was 3∶1 (w/w) . At this time, the mechanical property of the blend film was the best, TS was 35.47MPa, EAB was 25.87%. The WVP, light transmittance and water solubility of the blend film were improved. FTIR-ATR, X-RD and SEM analysis revealed that there were strong interactions and good compatibility between collagen and chitosan.
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