高酰基结冷胶凝胶特性的研究

Research on Properties of High-Acyl Gellan Gum

DOI：10.3969/j.issn.1673-1689.2012.08.010

中文关键词: 高酰基结冷胶 凝胶 流变特性 凝胶机理

英文关键词: high-acyl gellan gum gel rheological properties gelling mechanism

基金项目:上海市农业成果转化项目(09dz1912500);上海市重点学科建设项目(S30503)

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中文摘要:

研究了高酰基结冷胶溶液的凝胶特性并对其凝胶机理进行了分析,通过对高酰基结冷胶在不同浓度、温度、pH值和Ca2+盐条件下流变特性和凝胶强度的实验研究,结果表明:胶体浓度、温度、游离的二价阳离子含量以及pH值的差异都会对高酰基结冷胶的粘度和凝胶强度产生影响。对高酰基结冷胶作用力的初步考察结果表明:疏水作用、氢键作用、静电作用在形成凝胶的过程中均起关键作用,疏水作用影响最大。

英文摘要:

The rheological and gelling strength of high-acyl gellan gum at different concentration,temperature,pH and different calcium were carefully investigated in this manuscript.studied.High-acyl gellan gum was to investigate the gelling properties and gelling mechanism.The results showed that the different concentration,temperature,pH and calcium can affect the viscosity and gelatin strength of high-acyl gellan gum.Hydrogen bond,electrostatic force and hydrophobic interaction are the vital factors to the formation of high-acyl gellan gum,among them,it was believed that hydrophobic interaction play most importance.

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