신선한 울릉도 민들레 뿌리를 70% ethanol로 침지 추출하여 얻어진 추출물을n-hexane, EtOAc, n-BuOH로 순차용매 분획하였다. 이중 상대적으로 높은 pancreatic lipase 저해활성을 나타낸 EtOAc 분획에 대해 Toyopearl 및 겔을 활용한 column chromatography를 수행하여 5종의 페놀성 화합물을 분리하였다. 각 화합물의 화학구조는 NMR 스펙트럼 데이터 해석 및 표품과의 HPLC 직접 비교를 통

Activity-guided isolation from an ethylacetate-soluble fraction of a 70% (v/v) ethanolic extract from the roots of Taraxacum ohwianum, using a pancreatic lipase inhibition assay, resulted in isolation and identification of five phenolic metabolites of previously known structure; these were 3,5-di-O-caffeoylquinic acid, chicoric acid, caffeic acid, protocatechuic aldehyde, and luteolin. All structures were confirmed by NMR and MS scpectroscopic data. Of these compounds 3,5-di-O-caffeoylquinic acid exhibited the most potent inhibitory activity, with of against pancreatic lipase.

• 김태완
• 김태훈