单 位：
天津商业大学生物技术与食品科学学院,天津市食品生物技术重点实验室;天津商业大学生物技术与食品科学学院
关键词：
三叶委陵菜;西南委陵菜;抗氧化活性;脂类氧化;自由基清除
摘 要：
从总体抗氧化能力、对Fe2+诱发卵黄脂蛋白PUFA过氧化体系的抑制能力、清除羟基自由基能力、清除超氧阴离子自由基能力、清除DPPH自由基能力五个方面评价了四种委陵菜中黄酮类化合物的活性,并与其他的合成抗氧化剂VC和PG进行了比较。实验结果表明,在一定浓度范围内,四种委陵菜中黄酮类化合物在上述前四个方面的性能有着固定的顺序:三叶(福建)>三叶(河北)>西南(河北)>西南(福建),但在清除DPPH自由基方面,其强弱顺序为:西南(福建)>三叶(河北)>西南(河北)>三叶(福建),且与VC和PG相比,清除DPPH自由基的能力相差无几。
译 名：
Investigation of antioxidant activities and free radical scavenging of edible potentilla flavones
作 者：
ZHOU Yuan,LI Rong,JIANG Zi-tao(College of Biotechnology and Food Science,Tianjin University of Commerce,Tianjin Key Laboratory of Food Biotechnology,Tianjin 300134,China)
关键词：
Potentilla freyniana;Potentilla fulgens;antioxidant activity;lipid peroxidation;free radical scavenging
摘 要：
The antioxidant activities and free radical scavenging of Potentilla freyniana and Potentilla fulgens were evaluated based on total antioxidant ability,yolk lipoprotein,hydroxyl radical and superoxide anion scavenging activities,and scavenging DPPH radical.The various antioxidant activities were compared with synthetic antioxidants such as ascorbic acid(V C)and propyl gallate(PG).The results revealed that within certain range of concentration,four kinds of potentilla flavone compounds in the first four aspects had a fixed order:P.freyniana(Fujian)>P.freyniana(Hebei)>P.fulgens(Hebei)>P.fulgens(Fujian),but in the DPPH free radical scavenging a slightly different:the order was P.fulgens(Fujian)>P.freyniana(Hebei)>P.fulgens(Hebei)>P.freyniana(Fujian),compared with synthetic antioxidants such as VC and PG,this activity performances was similar.
