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[Characterization and activity effect on ADH of polysaccharides from Mori Fructus].
Zhongguo Zhong Yao za Zhi = Zhongguo Zhongyao Zazhi = China Journal of Chinese Materia Medica 2017 June
Mori Fructus polysaccharides (MFPs) have been used as a source of therapeutic agents. The most promising activities of these biopolymers are their immunomodulation and anti-cancer effects. It was reported that polysaccharides were a potential drug against liver injury, but the hepatoprotective effect of MFPs was ambiguous. In this study, the fractionation of crude polysaccharides on DEAE-Cellulose 52 gave four fractions (MFP-1, MFP-2, MFP-2 and MFP-4). The results showed that the contents of carbohydrates were 75.3%, 83.7%, 79.1%, 74.3%, and the molecular weight of them were 112.2, 128.8, 199.5, 181.9 kDa. Monosaccharide component analysis indicated that MFP-1 was composed of galactose, glucose, arabinose, rhamnose and mannose with the molarity rate of 26.8∶20.4∶8.74∶5∶1; MFP-2 contained arabinose, galactose, rhamnose, glucose and galacturonic acid with the molarity rate of 34.2∶38.2∶8∶17.5∶15.1; MFP-3 was composed of galacturonic acid, galactose, glucose, rhamnose and arabinose with the molarity rate of 28.3∶22.6∶20.9∶18.6∶15.1; MFP-4 contained glucose, galactose, rhamnose, galacturonic acid, arabinose and glucuronic acid with the molarity rate of 47.4∶34.9∶36.1∶33.1∶19.9∶4.1. IR analysis's results indicated that MFP-3 and MFP-4 may be polysaccharides containing β-glycosides. The alcohol dehydrogenase (ADH) activity text showed that, all these four MFPs were found have a positive effect on the activity of ADH, with order: bifendate>MFP-3>MFP-1>MFP-2>tioprnin>MFP-4, and the MFP-3 had the highest activity and demonstrated outstanding hepatic protecting activity.
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