番茄红素抗氧化活性的研究

Study on Anti-oxidative Activity of Lycopene

用化学发光法研究了纯度≥99％的番茄红素（b畔）对超氧阴离子、羟基自由基、DflPH和由AAPH引发月笕草油产生的脂质过氧化自由基的清除作用，结果表明，Lyp对4种自由基均有较强的清除作用，并且具有显著的剂量-效应关系。髓50分别是11．95、13．34、52．65、13．38μg/ml。Lyp对超氧阴离子、羟基自由基的清除速度较快，反应在6s内即可达到或接近最大值；对DflPH、脂质过氧化自由基的清除率达到最大值所需的时间为12～18s。

The scavenging effect on superoxid negative ion,oxyhydrate,DPPH and lipid peroxidation caused by AAPH of lycopene at the purity about 99% with chemical light method were introduced. The resuh shows that Lyp has strong scavenging effect on the above four free radicals, and the dose-effect relationship is significant. ECso is 11.95,11.34,52.65 and 13.38μg/ml respectively. The scavenging rate of Lyp on supemxid negative ion and oxyhydrate is faster. The maximum appeared within 6 s; the maximum yield of DPPH and lipid peroxidation appeared at 12 - 18 s.