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通过浊度分析表明:糊化活化淀粉的耐酸性、耐盐性,比可溶性淀粉好。通过凝胶色谱测定结果表明:糊化活化淀粉分离良好,产品相对分子质量分布较为均一,其相对分子质量为7238.70。纳米粒度分析仪测定表明:可溶性淀粉的粒径较小,随着温度的升高粒径均有变大的趋势。糊化活化淀粉的粒径均较大,且随温度的升高粒径先增大,当增加到较高的温度时,淀粉分子链断裂而使得粒径有所减少。SF-Ⅱ是SFT与明胶的反应产物,其分子粒径更大。且可溶性淀粉的粒径分布较宽,糊化活化淀粉及SF-Ⅱ的分子粒径分布较窄。FT-IR谱图表明了在SFS中羧基的存在,SFT中羰基的存在以及SF-Ⅱ中糊化活化淀粉与明胶产生了有效的结合,并同时存在一定数量的羧基和羰基。用β-环糊精糊化活化来模拟可溶性淀粉糊化活化后,SFS的~(13)CNMR图谱表明了在SFS中有大量的羧基存在。
Turbidity analysis showed that: gelatinized activated starch acid resistance, salt tolerance, better than soluble starch. The results of gel permeation chromatography showed that gelatinized activated starch was well separated and the molecular weight distribution of the product was more homogeneous with the relative molecular mass of 7238.70. The results of nano-particle size analyzer showed that the particle size of soluble starch was small, and the particle size tended to increase with the increase of temperature. The particle size of gelatinized activated starch is larger, and the particle size first increases with temperature, when the temperature is increased, the starch molecular chain is broken and the particle size is reduced. SF-Ⅱ is a reaction product of SFT and gelatin, and its molecular diameter is larger. And the soluble starch particle size distribution is wide, gelatinized activated starch and SF-Ⅱ molecular size distribution is narrower. FT-IR spectra showed the presence of carboxyl groups in SFS, the presence of carbonyl groups in SFT, and the gelatinization of starch in SF-II with gelatin, and the presence of a certain amount of carboxyl and carbonyl groups. After the gelatinization activation of soluble starch was simulated by gelatinization and activation of β-cyclodextrin, the ~ (13) CNMR of SFS showed that a large amount of carboxyl groups existed in SFS.