Study on Microwave-assisted Extract and Antioxidant Activity of Ginger Flavonoids

摘要：

Microwave-assisted extract process for flavonoids from ginger (FG) was studied. Influences of concentration of extracting agent, microwave power, material ratio and irradiation time on the extraction were investigated. From orthogonal experiments the optimum extracting parameters were determined as follows: microwave power, 640W, concentration of alcohol, 80%, the materials ratio, 1:30 (W: V) and irradiation time, 25s. Under this optimal condition, the yield of flavonoids was 16.97 mg/g. In this study, the antioxidant activity of FG was evaluated by various methods with BHT and ascorbic acid as control standards. Antioxidant experiments showed that FG exhibited a strong DPPH radical scavenging activity, reducing power and inhibition of lipid peroxidation activity, and antioxidant activity increased with increasing concentration.

作者: LIU Ling-ling HU Xin-pei LOU Lun-jiao ZHANG Bo NIE Jian-qi

作者单位: Science College Liaoning Technical University Fuxin, China

会议类型: 国际会议

会议名称: The 4th International Conference on Bioinformatics and Biomedical Engineering(第四届IEEE生物信息与生物医学工程国际会议 iCBBE 2010)

会议地点: 成都

会议语种:英文

页码: 1-4

在线出版日期: 2010-06-18（万方平台首次上网日期，不代表论文的发表时间）