明胶与海藻酸钠的相互作用及其应用

The Interaction between Gelatin and Sodium Alginate and Applications

研究了不同浓度明胶、海藻酸钠混合溶胶粘度变化 ,以及不同 pH值和不同离子浓度对体系粘度变化的影响 ,结果表明 ,明胶与海藻酸钠主要的交互作用力为二成分间静电引力。在此基础上 ,对仿生鱼翅的生产工艺和配方进行了初步研究。综合粗蛋白含量、硬度、拉伸强度和透明度等结果得出 :8%明胶、2 %海藻酸钠在纺丝原液 pH为 6 0时 ,制备的仿生鱼翅效果最佳。

The change of viscosity on mixed gel system of different concentrations gelatin and sodium alginate and the effect on system viscosity with change of pH value or ionic strength were studied in this thesis .The result indicated that major interactions of the gel system is electrostatic. According these results, the author put forward a preliminary studied program of preparing imitative shark fins. Combining the results of crude protein, hardness, tensile and transparency etc., the puerility of imitative shark fins with pH 6.0, 8%(w/w) gelatin, 2% sodium alginate was the best.