黄山贡菊叶中总黄酮提取物的抗氧化性研究

Study on Antioxidant of Total Flavonoids from Dendranthema Morifolium cv. Gongju Leaves

本研究分别采用石油醚、75%乙醇在索式提取器里回流浸提黄山贡菊叶,然后减压浓缩提取液,得到黄山贡菊叶中总黄酮提取物,并分别对其抗氧化能力、对羟自由基,超氧阴离子自由基,脂过氧自由基清除能力进行了实验研究。结果表明:黄山贡菊叶总黄酮提取物有良好的抗氧化性,并能有效地清除羟自由基,超氧阴离子自由基,脂过氧自由基,且在实验浓度范围内,随着黄山贡菊叶总黄酮提取物浓度的升高,其清除能力呈上升趋势。

Dendranthema morifolium cv.Gongju leaves were extracted in Soxhlet extractor with petroleum ether and 75% ethanol, and then the extract was concentrated by vacuum, the total flavonoids were gotten from Dendranthema morifolium cv.Gongju leaves.The antioxidant capacity and the scavenging capacity to hydroxyl radicals, superoxide anion radicals,lipid peroxy radicals of total flavonoids extracted from the leaves of Gongju were studied.The results showed that total flavonoids extracted from the leaves of Gongju have good antioxidant properties, and could effectively scavenge hydroxyl radicals, superoxide anion radicals and lipid peroxy radicals.In the experimental concentration range, its scavenging capacity rise with the increase of the total flavonoids.