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상황버섯(Phellinus linteus)으로부터 Ergosterol의 분리
류하나,유종수,송명종,이대영,김동현,노영덕,김인호,백남인 경희대학교식량자원개발연구소 2007 硏究論文集 Vol.26 No.1
상황버섯을 80% MeOH 용액으로 추출하고, 추출물을 EtOAc, n-BuOH 및 물로 분배, 추출하였다. 이 중 EtOAc 분획을 silica gel 및 octadecylsilica gel(ODS) column chromatography로 정제하여 1종의 sterol 화합물을 분리하였다. 화합물의 화학구조는 NMR, MS 및 IR 등의 스펙트럼 데이터를 해석하여, ergosta-7,22E-diene-3β,5α,6β-triol(cerevisterol, 1)로 동정하였다. 이 화합물은 상황버섯에서 처음 분리 보고 되었다. Phellinus linteus was extracted with 80% aqueous MeOH, and the concentrated extract was partitioned with EtOAc, n-BuOH and H_(2)O. The repeated silica gel and ODS column chromatographies of the EtOAc fraction led to the isolation of one sterol. From the result of spectral data including NMR, MS and IR, the chemical structure of the sterol was determined as ergosta-7,22E-diene-3β,5α,6β-triol (cerevisterol, 1). Compound 1 was isolated from the Phellinus linteus for the first time in this study.
Ha-Na Lyu,Dae-Young Lee,Dong-Hyun Kim,Jong-Su Yoo,Min-Kyung Lee,In-Ho Kim,Nam-In Baek 한국식품과학회 2008 Food Science and Biotechnology Vol.17 No.6
Secondary metabolites from the fruit body of Phellinus linteus were evaluated for their proliferative effect on human osteoblast-like cells. 3-[4,5-Dimethylthiazole-2-yl]-2,5-diphenyl-tetraxolium bromide (MTT) assay and alkaline phosphatase (ALP) activity assay were used to assess the effect those isolates on the human osteoblast-like cell line (Saos-2). Activityguided fractionation led to the isolation of ALP-activating phenolic compounds through the extraction of P. linteus, solvent partitioning, and repeated silica gel and octadecyl silica gel (ODS) column chromatographic separations. From the result of spectroscopic data including nuclear magnetic resonance (NMR), mass spectrometry (MS), and infrared spectroscopy (IR), the chemical structures of the compounds were determined as 4-(4-hydroxyphenyl)-3-buten-2-one (1), 2-(3’,4’-dihydroxyphenyl)-1,3-benzodioxole-5-aldehyde (2), 4-(3,4-dihydroxyphenyl)-3-buten-2-one (3), 3,4-dihydroxybenzaldehyde (4), and protocatechuic acid methyl ester (5), respectively. This study reports the first isolation of compounds 1-3 and 5 from P. linteus. In addition, all phenolic compounds stimulated proliferation of the osteoblast-like cells and increased their ALP activity in a dose-dependent manner (10?? to 10?¹ ㎎/㎖). The present data demonstrate that phenolic compounds in P. linteus stimulated mineralization in bone formation caused by osteoporosis. The bone-formation effect of P. linteus seems to be mediated, at least partly, by the stimulating effect of the phenolic compounds on the growth of osteoblasts.
Isolation of Ergosterol from the Phellinus linteus Ⅱ
Lyu, Ha-Na,Kwak, Ho-Young,Lee, Do-Gyeong,Lee, Youn-Hyung,Kim, In-Ho,Baek Nam-In 慶熙大學校 食糧資源開發硏究所 2007 硏究論文集 Vol.26 No.2
Phellinus linteus was extracted with 80% aqueous MeOH, and the concentrated extract was partitioned with EtOAc, n-BuOH and H20. The repeated silica gel and ODS column chromatography of the EtOAc fraction led to the isolation of one stεro1. From the result of spectral data including NMR, MS and IR, the chemical structure of the sterol was determined as 1,6-cyclo-l,10-secoergosta-5,7,9,22E-tetraen-3βol (1 H-cyclopentanthracene, 1). Compound 1 was isolated from the Phellinus linteus for the first time in this study.
Inhibition on LDL-oxidation by Phenolic Compounds from the Fruit Body of Phellinus linteus
Lyu, Ha-Na,Lee, Dae-Young,Lee, Min-Kyung,Cho, Moon-Hee,Jeong, Tae-Sook,Kim, In-Ho,Lee, Chang-Ho,Baek, Nam-In The Korean Society for Applied Biological Chemistr 2009 Journal of Applied Biological Chemistry (J. Appl. Vol.52 No.3
The fruit body of Phellinus linteus was extracted with 80% aqueous MeOH, and the concentrated extract was successively partitioned using EtOAc, n-BuOH and $H_2O$. From the EtOAc and n-BuOH fractions, three phenolic compounds were isolated through repeated silica gel and ODS column chromatography. The chemical structures of these compounds were determined as 2-(3',4'-dihydroxyphenyl)-1,3-benzodioxole-5-aldehyde (1), 4-(3,4-dihydroxyphenyl)-3-buten-2-one (2), and protocatechuic acid methyl ester (3) by spectroscopic data including NMR, MS and IR. Compounds $1{\sim}3$ exhibited low density lipoprotein (LDL) antioxidant activity with $IC_{50}$ values of 1.7, 0.7, and $2.4{\mu}M$, respectively.
류하나(Ha-Na Lyu),박미현(Mi-Hyun Park),홍성길(Seong-Gil Hong),이대영(Dae-Young Lee),한경민(Kyung-Min Han),유종수(Jong-Su Yoo),김세영(Se-Young Kim),노영덕(Young-Duk Rho),백남인(Nam-In Baek) 한국식품과학회 2007 한국식품과학회지 Vol.39 No.6
식품 소재의 국내산 약용식물인 163가지 천연물에서 메탄올로 추출한 시료를 이용하여 in vitro에서 10, 100, 500, 1000 μg/mL의 4가지 농도에서 대식세포 면역 활성을 측정하였다. 그 결과, 42개의 시료에서 면역증진반응을 보였으며, 그 중 20개의 시료는 음성대조군에 대하여 20% 이상 면역 활성을 증진시키는 것으로 측정되었다. 이중 2가지 농도에서 면역증진반응을 보이는 시료는 총 19개, 3가지 농도에서 면역증진효과를 나타내는 시료는 총 3개[골파(Allium schoenoprasmum), 두릅(Aralia elata), 매생이(Capsosiphon fulvescens)]였으며, 특히 마(Dioscorea batatas)는 각 농도에서 활성을 나타내었을 뿐 아니라 양성대조군과 비슷하거나 높은 활성을 나타내어 면역증진활성이 매우 우수한 것으로 나타났다. In this study, the 163 edible plants that are permitted as foods by the Korea Food and Drug Administration, were extracted in methanol. Following extration, their macrophage immunostimulating effects (MIE) were examined using a macrophage from BALB/c mice at four different concentrations of plant extract, such as 10 μg/mL, 100 μg/mL, 500 μg/ mL, and 1,000 μg/mL, in vitro. Forty-two samples significantly showed MIEs. Among them, 20 samples had increased MIEs at higher than 10%, as compared to the negative control group. Nineteen samples had increased MIEs at two of the plant extract concentrations, and 3 samples [Allium schoenoprasmum (chive), Aralia elata (fatsia), Capsosiphon fulvescens (seaweed fulvescens)] had increased MIEs at three of the concentration conditions. In particular, Dioscorea batatas (yam) showed MIEs at all concentrations, as well as slightly higher MIEs as compared to the positive control group. Therefore, Dioscorea batatas was evaluated to be an excellent MIE.