Acid heteropolysaccharide, sulfated polysaccharide and process for producing the same
申请人:TEIKOKU SEIYAKU KABUSHIKI KAISHA
公开号:EP0496351A2
公开(公告)日:1992-07-29
An acid heteropolysaccharide P-318 which comprises galactose, galacturonic acid, N-acetylfucosamine and pyruvic acid in a ratio of about 2:3:1:1, a sulfated heteropolysaccharide P-318 having a 10 % or less sulfur content which is prepared by sulfating said acid heteropolysaccharide and a process for preparing an acid heteropolysaccharide P-318 which comprises culturing Pseudomonas sp. 318 to produce the acid heteropolysaccharide P-318 and collecting the thus produced acid heteropolysaccharide P-318. The sulfated polysaccharide P-318 of the invention shows a strong antiviral activity in spite of a lower content of sulfate.
一种酸性杂多糖 P-318,它由半乳糖、半乳糖醛酸、N-乙酰岩藻糖胺和丙酮酸组成,其比例约为 2:3:1:1;一种硫酸化杂多糖 P-318,它的硫含量不超过 10%,是通过硫酸化所述酸性杂多糖制备的;一种制备酸性杂多糖 P-318 的工艺,它包括培养假单胞菌 318 以产生酸性杂多糖 P-318,并收集由此产生的酸性杂多糖 P-318。318 来产生酸性杂多糖 P-318,并收集由此产生的酸性杂多糖 P-318。本发明的硫酸化多糖 P-318 尽管硫酸盐含量较低,但却具有很强的抗病毒活性。