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The Comparison of Antioxidant Activity of Four Natural Pigments from Folium Perilliae
Author(s): 
Pages: 187-190
Year: Issue:  2
Journal: ACTA AGRICULTURAE BOREALI-SINICA

Keyword:  天然色素抗氧化能力脂质过氧化超氧阴离子DPPH自由基;
Abstract: 以紫苏、紫甘蓝、黑米、紫甘薯这4种天然色素为试验材料,从还原力、抗脂质过氧化和清除自由基等方面对它们的抗氧化能力进行了研究和评价.结果表明,这4种色素具有一定的还原能力;对亚油酸过氧化有抑制作用,在试验浓度范围内,最大抑制率分别为24.56%,33.04%,45.61%,54.39%;对DPPH自由基有明显的清除能力,最大清除率为92.59%,93.2%,78.4%,66.29%;对超氧阴离子也有一定的清除能力,最大清除率为46.85%,57.69%,41.2%,65.08%.紫苏、甘蓝、黑米、甘薯色素是优良的具有抗氧化功能的天然色素.
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