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실내외 조도 차이를 이용한 자동제어 수직 블라인드 시스템
정낙훈,김범준,선우일훈,김성준,우희찬,이상욱 순천향대학교 부설 산업기술연구소 2016 순천향 산업기술연구소논문집 Vol.22 No.2
Nowadays, with the increase in high-rise buildings, the amount of sunlight often changes several times a day, causing inconvenience to people. In this paper, a system which adjusts indoor light intensity by automatically controlling vertical blinds by detecting the difference of illumination between indoor and outdoor was developed. If the room is darker than the outside, the blinds open and the light enters the room and vice versa. The results of this study can be used not only in apartment, but also in botanical garden and hospital.
벼 (Oryza sativa L.)의 지상부로부터 u-tocopherol 의 분리
정낙훈,박희정,조진경,이대영,우치엔,정태숙,김세영,노영덕,백남인 慶熙大學校 食糧資源開發硏究所 2009 硏究論文集 Vol.28 No.-
벼 지상부를 80% MeOH 용액으로 추출하고, 추출물을 n-hexane, EtOAc, n-BuOH 및 물로 분배, 추출하였다. 이중 n-hexane 분획을 silica gel 및 octadecyl silica gel column chromatography로 정제하여 a-tocopherol을 분리하였다. 이 화합물의 화학구조는 NMR, MS 및 IR 등의 스펙트럼 데이터를 해석하여 동정하였다. 이 화합물은 벼 지상부에서는 처음 분리되었다. 또한 hACAT-l 에 대하여 50μg/ml로 처리하였을 때, 42.9土0.2% 저해활성을 나타내었다.
이재웅,이대영,백동렬,정낙훈,이동성,김윤철,김금숙,백남인,이윤형 한국식품과학회 2014 Food Science and Biotechnology Vol.23 No.3
The sprouts of red kohlrabi (Brassica oleraceavar. gongylodes) were extracted with methanol, and theconcentrated extracts were successively partitioned withethyl acetate, n-butyl alcohol (n-BuOH), and H2O. Fromthe n-BuOH fraction, four phenylpropanoids were isolatedthrough repeated silica gel and ODS column chromatographies. On the basis of physico-chemical and spectroscopicdata including NMR, MS, and IR, the isolatedcompounds were identified as 3-(3,4,5-trimethoxyphenyl)-2E-propenoic acid methyl ester (1), (E)-sinapic acid methylester (2), (E)-sinapoyl glucoside (3), and lawsoniaside B(4). Moreover, the compounds dose-dependently inhibitedNO production in RAW 264.7 cells with IC50 values of41.22 (1), 38.32 (3), and 22.65 (4) μM, respectively. Withfurther studies, these compounds may be potentially usefulin developing new anti-inflammatory agents.
해동피 (Kalopanacis Cortex)로부터 lignan 화합물의 분리
류하나,곽호영,박지해,정낙훈,최은희,Sabina Shrestha,김경태,정인식,백남인 慶熙大學校 食糧資源開發硏究所 2008 硏究論文集 Vol.27 No.-
해동피 (Kalopanacis Cortex)를 분쇄하여 80% EtOH 용액으로 추출하고, 얻어진 추출물을 극성에 따라 EtOAc 분획과 H20 분획으로 분배 추출하였다. 이중 EtOAc 분획에 대해 silica gel 및 ODS column chromatography를 반복 실시하여 l 종의 lignan 화합물을 분리,정제하였다. 화합물의 구조는 NMR, MS 및 IR 등 스펙트럼 데이터를 해석하여,syringaresinol(l)로 동정하였다. 이 화합물은 해동피에서 처음 분리 보고 되었다.
고추(Capsicum annuum)잎으로부터 sterol 화합물의 분리 및 동정
이재웅,조진경,이대영,정낙훈,박지해,백미영,이민경,안은미,이윤형,백남인 慶熙大學校 食糧資源開發硏究所 2008 硏究論文集 Vol.27 No.-
고추 잎을 100% MeOH로 추출하고, 얻어진 추출물을 EtOAc, n-BuOH 및 H20를 이용하여 용매 분획하였다 이중 EtOAc 분획으로부터 silica gel과ODS column chromatography를 반복하여 2종의 sterol 화합물을 분리, 정제하였다. 각 화합물의 구조는 NMR등의 spectrum 데이터를 해석하여 , β-sitosterol(compound 1)과 daucosterol(compound 2)로 동정하였다. 이들 화합물은 고추 잎에서는 처음 분리되었다.
산딸나무 열매로부터 저밀도 지질 단백질(LDL) 산화 역제물질의 분리
이대영,송명종,김민정,정낙훈,정태숙,이윤형,백남인 경희대학교식량자원개발연구소 2007 硏究論文集 Vol.26 No.1
산딸나무 열매를 100% MeOH로 추출하고, 얻어진 추출물을 EtOAc, n-BuOH 및 물로 용매 분획 하였다. 이 중 EtOAc 분획으로부터 silica gel과 octadecyl silica gel(ODS) column chromatography를 반복하여 1종의 lignan 화합물을 분리, 정제하였다. 화합물의 화학구조는 NMR, Ms 및 IR 등의 스펙트럼 데이터를 해석하여, (+)-pinoresinol (1) 로 동정하였다. 이 화합물은 산딸나무에서 처음 분리되었다. LDL-항산화활성 억제활성이 20㎍/mL 처리농도에서 85.1±1.3%로 나타났다. (+)-Pinoresinol was isolated from the EtOAc fraction of methanol extracts of the fruits of Cornus kousa Burg. The chemical structures of (+)-pinoresinol was determined by spectroscopy method, as well as 1D- and 2D-NMR (^(1)H-^(1)H COSY, HSQC and HMBC) spectroscopy. This compound was the first to be isolated from C. kousa Burg. Also, (+)-pinoresinol inhibited LDL-oxidation with the inhibitory activity of 85.1±1.3% at a concentration of 20 ㎍/mL.
누룩(Rhizopus oryzae KSD-815)으로부터 분리한 지질화합물의세포독성 및 항염증 활성
곽호영,이상진,이대영,배낙현,정낙훈,홍성렬,김계원,백남인 한국응용생명화학회 2008 Journal of Applied Biological Chemistry (J. Appl. Vol.51 No.2
Nuruk is the Korean traditional Koji that contains various microorganisms and has been used to make the traditional fermented foods including alcoholic beverages. Rhizopus oryzae KSD-815 was isolated from the alcohol-fermenting Nuruk used for manufacturing traditional alcohol. In this study, the authors reported the isolation and identification of four lipids from the Nuruk (Rhizopus oryzae KSD-815) that inoculated wheat with Rhizopus oryzae KSD-815. The dried and powdered Nuruk (Rhizopus oryzae KSD-815) were extracted three times at room temperature with 80% aqueous MeOH. The extracts were partitioned with EtOAc, n-BuOH, and water, successively. The EtOAc extract was suspended in 80% MeOH and partitioned repeatedly with n-hexane. From the n-hexane fraction, four lipids were isolated through the repeated silica gel and ODS column chromatographies. According to the results of physico-chemical data including NMR, GC and MS, the chemical structures of the compounds were determined as linolenic acid methyl ester (1), palmitic acid methyl ester (2), linoleic acid (3), palmitic acid (4). Cytotoxicity was evaluated in huamn breast cancer cells, MDA-MB-231 and human hepatocarcinoma, SK-HEP-1 cells using MTT assay. Exposure of compounds 1 and 3 led to a dose-dependent inhibition of cell viability in both cancer cell lines. In addition, treatment of RAW264.7 cells with compound 3 caused inhibition of lipopolysaccharide/interferon-γ-induced nitric oxide production. Nuruk is the Korean traditional Koji that contains various microorganisms and has been used to make the traditional fermented foods including alcoholic beverages. Rhizopus oryzae KSD-815 was isolated from the alcohol-fermenting Nuruk used for manufacturing traditional alcohol. In this study, the authors reported the isolation and identification of four lipids from the Nuruk (Rhizopus oryzae KSD-815) that inoculated wheat with Rhizopus oryzae KSD-815. The dried and powdered Nuruk (Rhizopus oryzae KSD-815) were extracted three times at room temperature with 80% aqueous MeOH. The extracts were partitioned with EtOAc, n-BuOH, and water, successively. The EtOAc extract was suspended in 80% MeOH and partitioned repeatedly with n-hexane. From the n-hexane fraction, four lipids were isolated through the repeated silica gel and ODS column chromatographies. According to the results of physico-chemical data including NMR, GC and MS, the chemical structures of the compounds were determined as linolenic acid methyl ester (1), palmitic acid methyl ester (2), linoleic acid (3), palmitic acid (4). Cytotoxicity was evaluated in huamn breast cancer cells, MDA-MB-231 and human hepatocarcinoma, SK-HEP-1 cells using MTT assay. Exposure of compounds 1 and 3 led to a dose-dependent inhibition of cell viability in both cancer cell lines. In addition, treatment of RAW264.7 cells with compound 3 caused inhibition of lipopolysaccharide/interferon-γ-induced nitric oxide production.