An acidic polysaccharide with xylose branches from Porphyra yezoensis

IOCAS-IR > 实验海洋生物学重点实验室

	An acidic polysaccharide with xylose branches from Porphyra yezoensis
	Zhang, WY ; Chen, H; Wang, SJ; Xia, ZH ; Fei, XG ; Tan, RX
	2001-02-01
发表期刊	CHINESE SCIENCE BULLETIN
ISSN	1001-6538
卷号	46 期号:3 页码:207-210
文章类型	Article
摘要	An acidic polysaccharide (PY3) was isolated from the hot water extract of the red algae Porphyra yezoensis by successive column chromatographies over DEAE-cellulose and Sephadex G-200. PY3 with an average molecular weight of 1.8x10(5) was demonstrated to be composed of galactose (Gal), 3,6-anhydrogalactose (3,6-AnGal), 6-OSO3-galactose (6-OSO3-Gal) and xylose (Xyl) in an approximate molar ratio of 25 : 15, 10, 1. In view of Smith degradation and methylation and on the basis of spectral evidence including those of IR, GC, GC-MS, and H-1 and C-13 NMR, the most probable repeating unit of PY3 could be proposed as [(1-->3)beta -D-Gal(1 --> 4)alpha -L-3,6-AnGal](3)-[(1 --> 3)beta -D-Gal(1 --> 4)alpha -L-6-OSO3-Gal](2) with a xylose moiety at the C-6 of one of every twenty-five beta -D-Gal residues. To our knowledge, PY3 was shown to be the first porphyran possessing occasional xylose branches.; An acidic polysaccharide (PY3) was isolated from the hot water extract of the red algae Porphyra yezoensis by successive column chromatographies over DEAE-cellulose and Sephadex G-200. PY3 with an average molecular weight of 1.8x10(5) was demonstrated to be composed of galactose (Gal), 3,6-anhydrogalactose (3,6-AnGal), 6-OSO3-galactose (6-OSO3-Gal) and xylose (Xyl) in an approximate molar ratio of 25 : 15, 10, 1. In view of Smith degradation and methylation and on the basis of spectral evidence including those of IR, GC, GC-MS, and H-1 and C-13 NMR, the most probable repeating unit of PY3 could be proposed as [(1-->3)beta -D-Gal(1 --> 4)alpha -L-3,6-AnGal](3)-[(1 --> 3)beta -D-Gal(1 --> 4)alpha -L-6-OSO3-Gal](2) with a xylose moiety at the C-6 of one of every twenty-five beta -D-Gal residues. To our knowledge, PY3 was shown to be the first porphyran possessing occasional xylose branches.
关键词	Porphyra Yezoensis Acidic Polysaccharide Structure Elucidation
学科领域	Multidisciplinary Sciences
收录类别	SCI
语种	英语
WOS记录号	WOS:000167179800009
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/3334
专题	实验海洋生物学重点实验室
作者单位	1.Nanjing Univ, Sch Life Sci, State Key Lab Pharmaceut Biotechnol, Inst Funct Biomol, Nanjing 210093, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Expt Marine Biol Lab, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Zhang, WY,Chen, H,Wang, SJ,et al. An acidic polysaccharide with xylose branches from Porphyra yezoensis[J]. CHINESE SCIENCE BULLETIN,2001,46(3):207-210.
APA	Zhang, WY,Chen, H,Wang, SJ,Xia, ZH,Fei, XG,&Tan, RX.(2001).An acidic polysaccharide with xylose branches from Porphyra yezoensis.CHINESE SCIENCE BULLETIN,46(3),207-210.
MLA	Zhang, WY,et al."An acidic polysaccharide with xylose branches from Porphyra yezoensis".CHINESE SCIENCE BULLETIN 46.3(2001):207-210.

条目包含的文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
zhang-An acidic poly（281KB）			限制开放	--	浏览