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Preliminary characterization, antioxidant activity in vitro and hepatoprotective effect on acute alcohol-induced liver injury in mice of polysaccharides from the peduncles of Hovenia dulcis

文献类型： 外文期刊

作者： Wang, Mingchun 1 ; Zhu, Peilei 2 ; Jiang, Changxing 1 ; Ma, Liping 1 ; Zhang, Zhanjun 1 ; Zeng, Xiaoxiong 1 ;

作者机构： 1.Nanjing Agr Univ, Coll Food Sci & Technol, Nanjing 210095, Jiangsu, Peoples R China

2.Anhui Acad Agr Sci, Inst Hort, Hefei 230031, Peoples R China

关键词： Polysaccharide;Hovenia dulcis;Hepatoprotective effect;Antioxidant;Alcohol;Liver injury

期刊名称：FOOD AND CHEMICAL TOXICOLOGY （ 影响因子：6.023； 五年影响因子：5.844 ）

ISSN： 0278-6915

年卷期： 2012 年 50 卷 9 期

页码：

收录情况： SCI

摘要： The fresh fleshy peduncles of Hovenia dulcis have been used as a food supplement and traditional herbal medicine for the treatment of liver diseases and alcoholic poisoning for more than a millennium. The objectives of the present study, therefore, were to determine the antioxidant activity of polysaccharides from the peduncles of H. dulcis (HDPS) and to evaluate its hepatoprotective effect on acute alcohol-induced liver injury in mice. HDPS, prepared by hot water extraction, ethanol precipitation and treatment of macroporous resin, was found to be non-starch polysaccharide and mainly composed of galactose, arabinose, rhamnose and galacturonic acid. In in vitro antioxidant assay, HDPS exhibited high superoxide radical scavenging activity, strong inhibition effect on lipid peroxidation and a medium ferrous ion-chelating activity. For hepatoprotective activity in vivo, the administration of HDPS significantly decreased the serum levels of alanine aminotransferase and aspartate aminotransferase, significantly decreased the liver level of malondialdehyde and remarkably restored the liver activities of superoxide dismutase and glutathione peroxidase in alcohol-induced liver injury mice. The results suggested that HDPS had a significant protective effect against acute alcohol-induced liver injury possibly via its antioxidant activity to protect biological systems against the oxidative stress. (C) 2012 Elsevier Ltd. All rights reserved.

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