Two black rice pigment components, BR1 and BR2, were obtained by thin layer chromatography. From five experiments for in vitro testing of the scavenging ability, anti-lipid peroxidation (anti-LPO) ability, and reducing ability of active oxygen (●OH, O 2 – ●, H 2 O 2 ) radicals, it can be seen that the two components have different degrees of antioxidant ability, the radical scavenging has a dose-effect relationship with the sample concentration, and the reducing ability of the two components is relatively weaker than that of ascorbic acid at the same concentration.

中文翻译：

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黑米色素的提取及性质

通过薄层色谱法获得了两种黑米色素组分 BR1 和 BR2。从五项体外检测活性氧（●OH、O 2 – ●、H 2 O 2 ）自由基的清除能力、抗脂质过氧化（抗-LPO）能力和还原能力的实验中可以看出，两种成分具有不同程度的抗氧化能力，自由基清除能力与样品浓度呈量效关系，两种成分的还原能力相对弱于相同浓度的抗坏血酸。