Systematic evaluation on the physicochemical characteristics of a series polysaccharides extracted from different edible lilies by ultrasound and subcritical water
文献类型: 外文期刊
作者: Zihan Song;Yanli Zhang;Yulin Luo;Yongrui Ti;Weizhen Wang;Yuqian Ban;Yuchao Tang;Yuqing Hou;Leifeng Xu;Jun Ming;Panpan Yang
作者机构:
关键词: lily;physicochemical properties;polysaccharides;subcritical water;ultrasonic-assisted extraction
期刊名称: Frontiers in Nutrition
ISSN: 2296-861X
年卷期: 2022 年 9.0 卷
页码:
收录情况: SCIE(2022版)
摘要: A series polysaccharide samples extracted from three edible lilies (Lilium davidii var. willmottiae, Lilium brownii var. viridulum, and Lilium lancifolium) by subcritical water and ultrasound-assisted extraction were systematically compared. The results showed that extraction method was a more important factor than lily species. Subcritical water extracted lily polysaccharides (S-LP) with higher yield, molecular weight, neutral glucose and uronic acid content as well as apparent viscosity. Ultrasound-assisted extracted lily polysaccharides (U-LP) with higher reducing sugars and protein content. Moreover, due to the degradation of glycosidic bonds, ultrasonic extraction was easier to obtain lower molecular weight polysaccharides. In addition, the extraction method significantly affected the monosaccharide proportion of polysaccharides, but had no effect on type. Glucose was the main component in S-LP, and glucose and mannose were the main components in U-LP. The micromorphology of different polysaccharide samples was similar, and the scanning electron microscope (SEM) images showed regular/irregular particle clusters with different particle sizes. Overall, the relationships between extraction methods, lily species and polysaccharide properties were preliminarily elucidated, providing a reference for the targeted extraction of specific lily polysaccharides (LP).
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