不同颜色花椰菜的芽菜生物活性物质及其抗氧化能力分析

Bioactive Substances and Antioxidant Activity in Different-colored Sprouts of Cauliflower(Brassica oleracea var.botrytis L.)

研究分析不同颜色花椰菜芽菜中芥子油苷等主要生物活性物质及其抗氧化能力。结果表明,不同颜色花椰菜芽菜中芥子油苷的组分和含量差异显著,白色、紫色和黄色花椰菜芽菜中主要芥子油苷为3-甲基硫氧丙基芥子油苷,绿色花椰菜芽菜中主要芥子油苷为4-甲基硫丁基芥子油苷。在芥子油苷含量上,紫色和绿色花椰菜芽菜中的芥子油苷含量最高,白色花椰菜芽菜次之,黄色花椰菜芽菜最少。在测定的4种颜色的花椰菜中,多酚和抗坏血酸的含量也存在差异,白色、绿色和紫色花椰菜芽菜中多酚含量相差不大,黄色花椰菜芽菜最低。抗坏血酸含量则是黄色花椰菜芽菜最高,绿色的最少,其余居中。不同颜色花椰菜的抗氧化能力强弱是多种活性物质共同作用的结果,其中以紫色花椰菜和绿色花椰菜芽菜抗氧化能力较强,白色花椰菜次之,黄色花椰菜最弱。

Contents of glucosinolate,ascorbic acid and polyphenols,as well as antioxidant activities of 4cauliflowers（Brassica oleracea var.botrytis L.）that bore sprouts of different colors were studied.The results showed that the compositions and contents of glucosinolate differed in the sprouts.For the white,purple,and yellow sprouts,glucoiberin was most abundant;while for the green sprouts,glucoerucin.The greatest total glucosinolate was found in the purple and green sprouts,followed by the white and yellow.No significant differences on polyphenols were observed among the white,green,and purple sprouts,and yellow sprouts had the least amount of polyphenols.The yellow sprouts contained the highest content of ascorbic acid,followed by the purple and white,and the green sprouts the least.The antioxidant activities in the different-colored cauliflower sprouts were higher in the purple or green than the white or yellow,which was the same for glucosinolate content.