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首页> 外文会议>International Conference on Textile Engineering and Materials >Chemical Structure and Rheological Properties of Tara Polysaccharide Gum
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Chemical Structure and Rheological Properties of Tara Polysaccharide Gum

机译：塔拉多糖胶的化学结构和流变性能

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摘要

Tara gum is a natural hydrocolloid obtained by a mechanical process from the endosperm of tara tree seeds. In this study, chemical composition and structure of tara polysaccharide gum were characterized by Fourier transform infrared spectroscopy (FT-IR) and gas chromatograph-mass spectrometer (GC-MS). Its rheological properties were also discussed. The results showed that tara gum had typical characteristics of plant polysaccharides, which was mainly consisted of galactose and mannose (mass ratio of galactose/mannose was 4.2:1), as well as a small amount of arabinose, glucose and xylose. The viscosity of tara gum solution increased with the increase of its concentration. The tara gum solution demonstrated a higher viscosity at the shear rate lower than 80 Hz, but a higher elasticity at the shear rate higher than 80 Hz.
机译：塔拉胶是通过来自塔拉树籽的胚乳的机械过程获得的天然水胶体。在该研究中，通过傅里叶变换红外光谱（FT-IR）和气相色谱谱仪（GC-MS）的化学成分和结构的特征在于突出的多糖胶。还讨论了其流变性质。结果表明，塔拉胶具有典型的植物多糖特征，主要由半乳糖和甘露糖（半乳糖/甘露糖的质量比为4.2：1），以及少量的阿拉伯糖，葡萄糖和木糖。塔拉胶溶液的粘度随其浓度的增加而增加。塔拉胶溶液在低于80Hz的剪切速率下表现出较高的粘度，但在高于80Hz的剪切速率下的弹性更高。

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