求翻译：利用分光光度法测定芝麻叶多酚对羟自由基的清除能力、亚硝酸盐的清除能力，对Fe2+诱导的卵黄脂蛋白脂质过氧化的抑制作用，研究了其体外抗氧化活性。是什么意思？

Spectrophotometric determination of sesame leaf polyphenol scavenging of hydroxyl radicals, nitrite scavenging ability of fe2 + yolk lipoprotein-induced lipid peroxidation, and its in vitro antioxidant activity.

The spectrophotometer used sesame leaf measured BPA-Free more than the free base of the clear navigational capabilities, nitrites, Fe 2+ of the yolk sac induced LDL lipids in stopping the carbon dioxide, a study of its external anti-oxidant activity.

Using the spectrophotometric method determination iris hashish polyphenol to the hydroxy free radical elimination ability, nitrite elimination ability, to the Fe2+ induction yolk lipoprotein lipin peroxidation inhibitory action, has studied its in vitro oxidation resistance activeness.

Spectrophotometric method for the determination of polyphenols in Sesame leaves to hydroxyl free radical scavenging abilities, nitrite scavenging ability, for Fe2+ yolk lipoprotein-lipid peroxidation induced by inhibition of and study on its antioxidant activity in vitro.

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