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process for the preparation of physical chemistry combined fractions of low molecular weight ialuronico acid characterized by low
process for the preparation of physical chemistry combined fractions of low molecular weight ialuronico acid characterized by low
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机译:低分子量低聚尿嘧啶酸的物理化学结合馏分的制备方法
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PCT No. PCT/EP96/05701 Sec. 371 Date Jul. 12, 1998 Sec. 102(e) Date Jul. 12, 1998 PCT Filed Dec. 19, 1996 PCT Pub. No. WO97/22629 PCT Pub. Date Jun. 26, 1997A process for preparing a hyaluronic acid fraction having an average molecular weight comprised between 5000 and 300,000 and a polydispersion index lower than 1.7, comprising treating the starting high molecular weight hyaluronic acid, contemporaneously with sodium hypochlorite and ultrasounds.
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