4种野生菌多酚的体外抗氧化活性

In vitro antioxidant activity of polyphenols extracted from four wild edible fungus

测定了黄皮疣柄牛肝菌、马勃菌、黑牛肝菌及鸡枞等4种野生菌多酚含量并研究了粗多酚的抗氧化活性。结果表明：4种野生菌的60％（体积分数）乙醇提取物对DPPH自由基、ABTS自由基和羟自由基都具有很好的清除能力，且该清除能力与多酚浓度呈现良好的剂量相关性。4种野生菌都具有较好的铁离子还原能力，EC50值介于0．02—0．04。总体来说，在4种野生菌中，黄皮疣柄牛肝菌多酚抗氧化活性最好，黑牛肝菌相对其他野生菌抗氧化活性较差。

The polyphenols content was measured of Leccinum crocipodium（Letellier. ） Walt. ,Scleroderma paradoxum G. M. Beaton,Boletus aereus and Termitomyces albuminosus （ Berk. ） Heim and in vitro antioxidant activity of polyphenols was also studied on. The results showed that：60% ethanol extract of four wild edible fungus all showed better dose-dependent DPPH,ABTS and hydroxyl free radical scavenging ability. Ferric reducing ability of wild Edible Fungi lay between 0.02 and 0.04. In all, Leccinum crocipodium showed the best antioxidant activity and Boletus aereus was the worst among them.