关键词: 萝卜, 硫代葡萄糖苷, 品种, 叶片, 肉质根

Abstract: The objective of this study was to evaluate the composition and content of GSs in leaves and edible roots of three local radish varieties by high-performance liquid chromatography. The results showed that the composition of GSs in leaves were the same as those in roots and included six aliphatic GSs and three indolyl GSs. However, there were significant differences in the content and relative content of GSs among varieties and organs. In editable roots, the total GSs were 22.59, 12.44 and 27.94 mg·g^-1DM and the relative content of total aliphatic GSs were above 95% in three radish varieties, respectively. The content of total GSs and total aliphatic GSs in edible roots were 2.6-4.9 and 2.8-6.0 times higher than those in leaves of three varieties, respectively. The content of total indolyl GSs in edible roots of ‘Chuzhou xiaowuying' was 1.7 times higher than that in leaves, while in ‘Guling xialuobo' and ‘Yunnan bailuobo'the content of total indolyl GSs in editable roots were only 0.37 times and 0.77 times as much as those in leaves. The relative contents of the major GS of 4-methylthio-3-butenyl GS were accounted for 90.43%-93.92% in edible roots and 62.42%-74.05% in leaves. These results suggested that the cruciferous vegetable of radish was rich in GSs and there were significant variations of the content of GSs in different genotypes and organs．

Key words: radish, glucosinolates, variety, leaves, edible roots