Isolation of Antioxidant Components from Trigonella foenumgraecum L.

It is investigated the free radical scavenging capacity of Trigonella foenumgraecum L.and the method for effective abstraction of antioxidant components from the species.The study is to provide some basic data for health effect and exploitation of the plants.The five solvents,i.e.ethyl acetate,acetone,water,ethanol,ethyl,and also the ultrasonic treatment were used.The extracts were diluted as several concentration gradients and used for assignment on superoxide radical scavenging capacity,hydroxyl radical scavenging,anti-lipid peroxidation,DPPH free radical scavenging ability and determination of total flavonoids and total phenols.The results indicat that in the five extracts,the highest superoxide radical scavenging capacity was obtained in the ethyl acetate extract,the highest hydroxyl radical scavenging was obtained in the ethyl extract,the highest anti-lipid peroxidation was obtained in the acetone extract,the highest DPPH radical scavenging ability was obtained in the water extract,the highest total flavonoids was obtained in the ethyl acetate extract,and the highest total phenols was obtained in the ethyl.