Purification, chemical modification and immunostimulating activity of polysaccharides from Tremella aurantialba fruit bodies
文献类型: 外文期刊
第一作者: Du, Xiu-ju
作者: Du, Xiu-ju;Zhang, Jing-song;Yang, Yan;Tang, Qing-jiu;Jia, Wei;Du, Xiu-ju;Pan, Ying-jie
作者机构:
关键词: Tremella aurantialba;Purification;Polysaccharide;Sulfation;Immunostimulating activity
期刊名称:JOURNAL OF ZHEJIANG UNIVERSITY-SCIENCE B ( 影响因子:3.066; 五年影响因子:3.057 )
ISSN: 1673-1581
年卷期: 2010 年 11 卷 6 期
页码:
收录情况: SCI
摘要: Ultrafiltration and a series of chromatographic steps were used to isolate and purify polysaccharides from Tremella aurantialba fruit bodies. Three crude fractions (TAP50w, TAP10-50w, and TAP1-10w), five semi-purified fractions (TAPA-TAPE), and one purified fraction (TAPA1) were obtained. A sulfated derivative of TAPA1 (TAPA1-s) was prepared by chemical modification. The immunostimulating activity of the polysaccharide fractions in vitro was determined using the mouse spleen lymphocyte proliferation assay. Of the three crude fractions tested, cell proliferation rates were increased most by TAP50w. Furthermore, TAPA1-s was markedly more stimulatory than TAPA1, indicating that sulfonation was an effective way to enhance the immunostimulating activity of polysaccharide.
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