Swastika Paul1,3, Xuemei Zhang1, Yongping Yang2, Changan Geng1,*
Phyton-International Journal of Experimental Botany, Vol.89, No.1, pp. 131-136, 2020, DOI:10.32604/phyton.2020.08328
Abstract Brassica rapa var. rapa (turnip) is an important crop in Qinghai-Tibet
Plateau (QTP) with anti-hypoxic effect. Turnip is rich in glucosinolates,
isothiocyanates and phenolic compounds with diverse biological activities,
involving anti-oxidant, anti-tumor, anti-diabetic, anti-inflammatory, anti-microbial,
hypolipidemic, cardioprotective, hepatoprotective, nephroprotective and analgesic
properties. In this study, the ethyl acetate (EtOAc) and butanol parts of Brassica
rapa were first revealed with inhibitory effects on α-glucosidase, whereas the water
part was inactive. Subsequent bioassay-guided isolation on the EtOAc and butanol
parts yielded 12 compounds, involving three indole derivatives, indole-3-
acetonitrile (1) 4-methoxyindole-3-acetonitrile (2) and indole-3-aldehyde (3) two
flavonoids, liquiritin (4) and licochalcone A… More >
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