In order to understand the nutritional values of Houttuynia cordata, the CIE color values, bioactive com-pounds contents and antioxidant capacities among different organs ( leaves, stems and rhizomes) in Houttuynia corda-ta were investigated in the present study. The results showed that significant differences were found among different tissues. The adaxial leaf surface and stems owned lower a?value and higher b?value, while the abaxial leaf surface was on the contrary, and the rhizomes had the highest L? value. The levels of chlorophyll, carotenoids, vitamin C, anthocyanins, proanthocyanidins, flavonoids, total phenolics and antioxidant capacities were followed as the trends of leaves> stems > rhizomes. Moreover, significant or extremely significant ( P 地上茎>根状茎的趋势.相关性分析表明,7种生物活性物质与抗氧化能力间均呈极显著或显著正相关关系(P<0.05),且亚铁还原能力法(FRAP)对应的相关系数均高于总抗氧化能力检测法(ABTS)(原花青素除外).进一步与8种常见蔬菜进行比较发现,鱼腥草,特别是叶片部分,含有更为丰富的生物活性物质和较高的抗氧化能力,开发潜力巨大.
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