期刊论文

Study on vitro-antioxidant activities of extracts of Gynura procumbens(Lour.) merr

中文

食品与机械

1003-5788

2016

32

10

145-150

10.13652/j.issn.1003-5788.2016.10.034

2014年江西科技厅科技支撑项目

本校为第一机构

研究平卧菊三七植株不同部位、干燥方式和提取溶剂对其提取液中生物活性物质含量和抗氧化活性的影响。结果表明:平卧菊三七植株根部相比于茎部和叶部,酚类化合物和黄酮类化合物含量较高且抗氧化性较强,铁离子还原/抗氧化能力、DPPH自由基清除能力和ABTS~+·清除能力测定的抗氧化值(抗氧化能力TEAC值)分别达到(21.25±0.31),(35.27±0.26),(56.20±0.22) μg Trolox/mL。干燥方式对平卧菊三七植物根部提取液的生物活性物质含量有显著性影响,冷冻干燥和60 ℃热风干燥方式获得的提取液具有更强的抗氧化活性。溶剂对平卧菊三七植株根部提取液的生物活性物质含量和抗氧化活性有显著性影响(P

The effects was studied on the biologically active substances content and antioxidant activity of G. procumbens extracts, which was from different parts of Gynura procumbens （Lour.） Merr, by different drying methods, and with different kinds of solvents. The results showed that： G. procumbens roots compared to its stems and leaves had higher content of phenolic and flavonoids and the antioxi- dant activity was also stronger, and the ferric reducing ability and ABTS＋· scavenging capacity and DPPH · scavenging capacity were21.25±0.31, 35.2...