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- Title
水热法主要提取因素对光皮木瓜多糖结构的影响 .
- Authors
葛含静
- Abstract
Objective To optimize the hydrothermal extraction conditions of Chaenomeles sinensis polysaccharides, analyze the composition and structure of insoluble polysaccharides. Methods The polysaccharides in Chaenomeles sinensis were extracted from the samples by hydrothermal, then filtered, rinsed and concentrated to obtain the insoluble polysaccharides, the alcohol-precipitated polysaccharides and the alcohol-soluble polysaccharides, respectively. The composition and the structure of the insoluble polysaccharides were analyzed by Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), and X-ray diffraction (XRD). Results The optimum conditions for polysaccharides extracting were 150 ℃/45 min and the ratio of material to liquid was 1:10 (g/mL). Temperature had a great influence on the extraction effect of hydrothermal method. Properly increasing the temperature, extending the extraction time and reducing the material-to-liquid ratio are beneficial to the extraction of polysaccharides. Furthermore, high temperature could promote the dissolution of hemicellulose, but could not degrade lignin and xylan, and the insoluble polysaccharides extracted at different temperatures had the similar structures. The hydrothermal extraction of papaya polysaccharide did not change the functional groups of the polysaccharide, but only changed the chemical composition of the polysaccharide. Conclusion This study can provide experimental basis for the study of structure and function of Chaenomeles sinensis polysaccharide.
- Publication
Journal of Food Safety & Quality, 2021, Vol 12, Issue 6, p2394
- ISSN
2095-0381
- Publication type
Article