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식용식물자원으로부터 활성물질의 탐색-6, 쑥갓(Chrysanthemum coronarium L.)으로부터 sterol의 분리
송명종 ( Song Myeong Jong ),홍윤희 ( Hong Yun Hui ),김동현 ( Kim Dong Hyeon ),김대근 ( Kim Dae Geun ),정인식 ( Jeong In Sig ),이윤형 ( Lee Yun Hyeong ),김성훈 ( Kim Seong Hun ),박미현 ( Park Mi Hyeon ),김인호 ( Kim In Ho ),권병옥 한국응용생명화학회 2003 Applied Biological Chemistry (Appl Biol Chem) Vol.46 No.4
The aerial parts of the Garland (Chrysanthemum coronarium L.) were extracted in MeOH and solvent fractionated with EtOAc, n-BuOH and water, successively. EtOAc fractions gave three steroid compounds through application of silica gel column chromatographies. The chemical structures of the steroids were determined by the interpretation of several spectral data, including NMR and MS as stigmast-5-en-3β-ol (1, β-sitosterol), stigmast-4-en-6β-ol-3-one (2), stigmast-4-en-6α-ol-3-one (3). Compounds 2 and 3 have been so far reported only in the aquatic plants, were isolated for the first time from the land plants.
식용 식물자원으로부터 활성물질의 탐색-8. 용안육(Euphoria longana L.)으로부터 분리된 uridine의 혈소판 응집 저해 효과
김동현 ( Kim Dong Hyeon ),송명종 ( Song Myeong Jong ),최정민 ( Choe Jeong Min ),김성훈 ( Kim Seong Hun ),김대근 ( Kim Dae Geun ),정인식 ( Jeong In Sig ),박미현 ( Park Mi Hyeon ),권병목 ( Kwon Byeong Mog ),백남인 ( Baeg Nam In ) 한국응용생명화학회 2004 Applied Biological Chemistry (Appl Biol Chem) Vol.47 No.1
The arils of Euphoria longana L. was extracted with 80% aqueous MeOH, and the concentrated extract was partitioned with EtOAc, H-BuOH and H₂O. From the n-BuOH fraction, four compounds were isolated through the repeated silica gel, ODS and Sephadex LH-20 column chromatographies. From the result? of physico-chemical data including NMR, MS and IR, the chemical structures of the compounds were determined as 1,1-dimethyl-2-propenyl 1-O-β-D-glucopyranoside. ethyl β-D-glucopyranoside, 5-(hydroxymethyl)-2-furfur-aldehyde and uridine. Uridine exhibited inhibition effect of 79% on platelet aggregation at the concentration of ㎍/㎖.