【摘要】 用体外实验对红树莓中鞣花酸提取物的还原能力、抗猪油氧化试验、清除羟基自由基、清除DPPH·自由基进行研究。结果表明,在还原铁反应体系中,树莓鞣花酸的浓度为1.0mg/mL时和0.5mg/mL的Vc还原能力相当,说明树莓中的鞣花酸提取物具有较强的还原能力;在抗猪油试验中,可以有效抑制猪油的氧化,能够达到抑制猪油发生氧化反应;对·OH和DPPH·自由基的清除作用分别可达到74.8%和57.82%。更多还原

【Abstract】 The paper studied the extraction of ellagic acid from red raspberry of reducing capacity,antioxidationactions to axunge,scavenging action to hydroxyl free radical(·OH),antioxidation actions to DPPH·(1-diphenyl-2-picrylhydrazino) free radical.As indicated by the experimental results.Through the Fenton reaction.They have a considerable reducing capacity whey concentration of ellagic acid was 1.0 mg/mL and Vc was 0.5 mg/mL.It indicated extraction of ellagic acid has a strong reducing capacity,And it aslo shown that can stop the oxidation of axunge,scavenging action on both the hydroxyl free radical and 1-diphenyl-2 picrylhydrazino free radical and gave their rates of scavenge of 74.8% and 57.82% respectively.更多还原