• 제목/요약/키워드: Water-2-butanol

검색결과 491건 처리시간 0.027초

Chlorogenic Acid, an Antioxidant Principle from the Aerial Parts of Artemisia iwayomogi that Acts on 1,1-Diphenyl-2-picrylhydrazyl Radical

  • Kim, Soon-Shin;Lee, Chung-Kyu;Sam, Sik-Kang;Jung, Hyun-Ah;Choi, Jae-Sue
    • Archives of Pharmacal Research
    • /
    • 제20권2호
    • /
    • pp.148-154
    • /
    • 1997
  • The antioxidant activity of Artemisia iwayomogi was determined by measuring the radical scavenging effect on 1, 1-diphenyl-2-picrylhydrazyl (DPPH) radical. The methanol extract of A. iwayomogi showed strong antioxidant activity, and thus fractionated with several solvents. The antioxidant activity potential of the individual fraction was in the order of ethyl acetate > n-butanol > water > chloroform > n-hexane fraction. The ethyl acetate and n-butanol soluble fractions exhibiting strong antioxidant activity were further purified by repeated sitica get and Sephadex LH-20 column chromatography. Antioxidant chlorogenic acid was isolated as one of the active principles from the n-butanol fraction, together with the inactive components, 1octacosanol, scopoletin, scopolin, apigenin $7, 4^{I}$-di-O-methylether, luteolin $6, 3^{I}$-di-O-methylether (jaceosidin), apigenin methylether (genkwanin), 2, 4-dihydroxy-6-methoxyacetophenone $4-O-{\beta}-$D-glucopyranoside and quebrachitol. The antioxidant activity of chlorogenic acid was comparable to that of L-ascorbic acid, which is a well known antioxidant.

  • PDF

신안산 손바닥선인장의 생리활성 검정 (Antimicrobial Activities, Antioxidant Effects, and Total Polyphenol Contents of Extracts of Prickly Pear, Opuntia ficus indica)

  • 조인경;서경순;김용두
    • 한국식품저장유통학회지
    • /
    • 제16권6호
    • /
    • pp.953-958
    • /
    • 2009
  • 신안산 손바닥선인장 butanol 추출물과 methanol 추출물이 10균주 중 세균에 대하여 항균활성이 강하였으나, 젖산균 및 효모에 대해서는 항균활성이 나타나지 않았다. 부위별 항균활성은 줄기 추출물이 열매 추출물 보다 강한 활성을 나타내었다. 손바닥선인장의 butanol 추출물의 최소저해 농도는 세균은 100 mg/mL 이었고, 효모와 젖산균은 500 mg/mL이었다. 손바닥선인장 추출물의 열 안정성은 $100^{\circ}C$에서 30분 가열시에도 항균활성이 거의 감소되지 않아 열에 안정한 물질로 확인 되었다. 손바닥선인장 butanol 추출물에 함유된 항균활성 물질의 pH 안정성은 산성인 pH 3과 알칼리인 pH 9 에서도 항균활성이 감소되지 않아 산과 알칼리에서도 안정한 물질로 확인되었다. 손바닥선인장의 추출물별 DPPH free radical scavenging activity는 열매와 줄기 모두 water, methanol, butanol, ethyl-acetate 및 diethylether 순으로 나타냈고, 시료 부위별로는 줄기가 열매에 비해 항산화성 활성이 높게 나타냈다. 손바닥선인장의 폴리페놀함량은 열매가 520.57 mg%로 줄기 203.26 mg% 보다 2배정도 높은 함량을 나타내었다.

동백(Camellia japonica L.)유박 추출물의 항균활성 (Antimicrobial Activity of Defatted Camellia(Camellia japonica L.) Seeds Extract)

  • 강성구;김용두;최옥자
    • 한국식품영양과학회지
    • /
    • 제27권2호
    • /
    • pp.232-238
    • /
    • 1998
  • To developed natural food preservatives, ethanol and water extracts were prepared from the defatted camellia(Camellia japonica L.) seeds. Antimicrobial activities were examined against 14 microorganisms which were food borne pathogens and/or food poisoning microorganisms and food-related bacteria and yeasts. Ethanol extract showed antimicrobial activities against several microorganisms tested, but not on lactic acid bactria. Especially, minimum inhibitory concentrations(MIC) for yeasts were as low as 1mg/ml. Water extract exhibited antimicrobial activities for the yeasts tested, but almost bacteria were not observed. The ethanol extract was fractionated in the order of hexane, chloroform, ethylaetate and butanol fractions to test antimicrobial activity. The strongest activity for the tested yeasts were found in the butanol fractions, but bacteria were chloroform fraction. Hansenula anomala treated with ethanol were observed by scanning electron micrograph, and the results exhibited morphological changes, including the irregularly contracted cell surface and expanded ellipsoidal shape.

  • PDF

크로마토그래프법에 의한 $Hippuran^{131}$-I의 순도시험 (Purity Test of $Hippuran^{131}$I by Chromatography)

  • 김순옥
    • 약학회지
    • /
    • 제21권2호
    • /
    • pp.110-114
    • /
    • 1977
  • The purified .omicron.-iodobenzoic acid-$^{131}$ I, sodium iodide-$^{131}$I and mixtures of those compounds were applied to radio paper or radio thin layer chromatography to select the developing solvents with useful separation efficiency. The separation efficiencies were checked by radiochromatogram sacnnings. It has been found that the two dimensional radio paper chromatogrphy using the solvent systems of 8% phenol and butanol-glacial acid-water (4:1:1 v/v) and the radio thin layer chromatography using alumina gel plate and butanol- glacial acetic acid- water (4:1:1 v/v) are both efficient. In this method, the Rf value of .omicron.-iodobenzoic acid-$^{131}$ I and the unbound $^{131}$ I is 0.48, 0.85 and 0.15, respectively.

  • PDF

합환근의 항산화효과와 간암세포에 대한 세포독성 (Cytotoxic Activities and Antioxidative Activities Against Liver Cancer Cell of Albizzia root)

  • 강병수;이갑득
    • Biomolecules & Therapeutics
    • /
    • 제10권4호
    • /
    • pp.287-292
    • /
    • 2002
  • To find new inhibitory effects from oriental drugs, Albizziae root was extracted in methanol and the extracted was stepwisely fractionated by hexane, chloroform, ethylacetate, butanol and water. In cytotoxic effect of Albizziae root fractions against cancer cell lines including human hepatoma cells(HepG2) were investigated. Expecially the butanol fraction exhibited a inhibition effects on the growth of human hepatoma cells(HepG2). It inhibited of HepG2 cells with the value of IC50. The activities of qutathione after B(a)P treatment were markedly decreased than control, but those levels were increased by the treatment of Albizziae root methanol fraction. The activity of glutathione-S-transferase after B(a)P treatment were markedly decreased than control, but those levels were increased by the treatment of Albizziae root methanol traction. Induction of phase II enzymes is a major mechanism of chemoprevention. The induction levels of quinone reductase(QR) activity in cultured murine hepatoma(Hepa IcIc7)cell by methanol extract of Albizziae root were measured. Among the tested tractions, the extracts of butanol were found to induce QR activities over 2.8 fold than control. These results suggest that Albizziae root has chemopreventive Potential by inducing QR activities and GST levels and increasing GSH

울금(Curcuma longa L.) 추출물의 산화억제 및 질소산화물 소거활성 (Evaluation of Oxidation Inhibition and Nitrogen Oxide Scavenging Activity from Curcuma longa L. Extracts)

  • 오다영;김한수
    • 한국응용과학기술학회지
    • /
    • 제36권1호
    • /
    • pp.13-22
    • /
    • 2019
  • 울금(Curcuma longa L.)의 산화억제 및 질소산화물 소거활성 등 기능성 소재로서 활용 가능성을 검토한 결과, 프로안토시아니딘(proanthocyanidin) 함량은 $69.000{\pm}2.737mg$ catechin equivalents (CE)/g dry weight으로 확인되었으며, 증류수(distilled water, DW), 70% 에탄올 및 노르말 부탄올(n-butanol)의 3가지 용매를 사용한 추출 수율은 DW (17.11%), 70% 에탄올(15.26%), 노르말 부탄올(4.12%) 순으로 관찰되었다. 총 플라보노이드(total flavonoid) 함량은 DW, 70% 에탄올 및 노르말 부탄올에서 각각 0.032, 0.512 및 2.221 mg quercetin equivalents (QE)/g의 함량으로 나타났고, 노르말 부탄올에서는 유의적인 차이를 보이며 높게 관찰되었다(p<0.05). Nitric oxide (NO) 라디칼 소거 활성은 농도 별(0.2~0.8 mg/mL) DW에서 15.64~26.20%, 70% 에탄올 10.52~20.76%, 노르말 부탄올에서 13.39~69.92%로 확인되었다. Nitrite ($NO_2$) 소거활성은 DW 및 70% 에탄올과 비교하였을 때 노르말 부탄올에서 강한 $NO_2$ 소거활성을 보였다. ${\beta}$-carotene 탈색 저해활성은 DW에서 8.81~25.93%, 70% 에탄올 1.20~20.20%, 노르말 부탄올 12.08~43.93%로 나타났다. 지질과산화 저해활성은 DW, 70% 에탄올 및 노르말 부탄올에서 각각 5.60~27.54%, 37.78~50.79% 및 41.79~46.39%로 동정되었다. 이에, 천연 항산화제 등 기능성 소재로서의 활용 가능성이 있을 것으로 사료된다.

Cytotoxicity Assessment of Six Different Extracts of Abelia triflora leaves on A-549 Human Lung Adenocarcinoma Cells

  • Al-Taweel, Areej Mohammad;Perveen, Shagufta;Fawzy, Ghada Ahmed;Ibrahim, Taghreed Abdou;Khan, Afsar;Mehmood, Rashad
    • Asian Pacific Journal of Cancer Prevention
    • /
    • 제16권11호
    • /
    • pp.4641-4645
    • /
    • 2015
  • The present investigation was designed to assess the anticancer activity of six different leaf extracts (ethyl acetate, methanol, chloroform, petroleum ether, n-butanol, and water soluble) of Abelia triflora on A-549 human lung adenocarcinoma epithelial cells. A-549 cells were exposed to $10-1000{\mu}g/ml$ concentrations of the leaf extracts of A. triflorafor 24 h and then percentage cell viability was assessed by 3-(4,5-dimethylthiazol-2yl)-2,5-biphenyl tetrazolium bromide (MTT) assay. The results showed that leaf extracts of A. triflora significantly reduced the viability of A-549 cells in a concentration-dependent manner. Decrease was recorded as 31% with ethyl acetate, 36% with methanol, 46% with chloroform, 54% with petroleum ether, 62% with n-butanol, and 63% with water soluble extracts at $1000{\mu}g/ml$ each. Among the various plant extracts, ethyl acetate extract showed the highest decrease in the percentage cell viability, followed by methanol, chloroform, petroleum ether, n-butanol, and water soluble extracts. Our results demonstrated preliminary screening of anticancer activity of different soluble extracts of A. triflora extracts against A-549 cells, which can be further used for the development of a potential therapeutic anticancer agents.

가감통선산(加減通聖散)의 여러 가지 분획에 따른 L1210 암(癌) 세포주(細胞株) 억제(抑制) 효과(效果) (Study of Gagamtongsung-San about cytotoxicity in L1210)

  • 박윤희;최정화;김종한;박수연
    • 한방안이비인후피부과학회지
    • /
    • 제20권1호통권32호
    • /
    • pp.169-176
    • /
    • 2007
  • Objectives : The purpose of this study was to investigate inhibitory effect of Gagamtongsung-San(GTS) on the cancer. Methods : This study estimated the cytotoxicity of GTS about L1210 and NIH3T3. We used GTS extract distilled with water, n-Hexane, Ethyl acetate and Butanol. The cytotoxicitys of GTS about cancer cells and normal cells were tested using a colorimetric tetrazoliun assay(MTT assay). Results : The results of this study were obtained as follow ; l. Cytotoxicity of water extract of GTS in L1210 cell lines was significantly increased, compared with NIH3T3. 2. n-Hexane fraction of GTS had similar cytotoxicity between L1210 and NIH3T3, and that have similar $IC_{50}$ of water extract of GTS at 276 ${\mu}g/ml$ 3. Ethyl acetate fraction of GTS had low degree cytotoxicity both L1210 and NIH3T3 cell lines. 4. Butanol fraction of GTS had cytotoxicity between L1210 and NIH3T3. Significantly, Cytotoxicity of GTS in L1210 cell lines was significant increased. 5. $H_2O$ fraction of GTS had no cytotoxicity both L1210 and NIH3T3.

  • PDF

두 종류의 특정상호작용을 갖는 이성분 용액의 부분 혼합도 (Partial Miscibilities in Binary Solutions with Two Kinds of Specific Interactions)

  • 정해영
    • 대한화학회지
    • /
    • 제60권2호
    • /
    • pp.111-117
    • /
    • 2016
  • 본 연구에서는 이성분 격자 용액에서 용매-용질, 용질-용질 분자 사이에 특정상호작용이 존재하는 경우에 대한 새로운 혼합자유에너지식을 유도하였다. 특정상호작용이 일어날 확률은 이항분포를 만족한다고 가정하였다. 이 혼합자유에너지식을 이용하여 나타낼 수 있는 부분혼합도에 대한 유형을 조사하였고 Ω-모양의 온도-조성 상도가 존재할 수 있음을 보여 주었다. 그리고 물-2-부탄올에 대한 Ω-모양의 온도-조성 상도를 계산하여 Hino등 5의 방법에 의한 계산값, 실험값과 비교하여 보았다.

마른명태 식해의 향기성분과 기능성 (Functional and Volatile Flavor Components in Myungtae(Alaska pollack) sikhae)

  • 구태호;장운빈;최희진;우희섭;손규목;최청
    • 한국식생활문화학회지
    • /
    • 제17권5호
    • /
    • pp.535-542
    • /
    • 2002
  • 동시증류추출장치를 사용하여 추출한 전통마른명태식해의 휘발성 향기성분을 기체 크로마토그래피로 분리하여 질량분석법으로 동정하였다. 식해에서 분리동정된 155종의 화합물로는 82종의 hydrocarbon류, 31종의 알콜류, 20여종의 알데히드, 13종의 ketone, 9종의 ester류 및 기타 2 종류의 화합물이 확인되었다. 마른명태식해에서 동정된 물질 중에서 ${\alpha}$-zingibirene 전체 상에 농도에서 11.03%를 차지하였으며(E)-di-2-propenyl disulfide(7.95%), ${\beta}$-cironellol(6.02%), methyl allyl disulfide(3.58%), cryptone(3.39%), camphene(3.23%), pentanol(3.21%), penadecanal(2.66%) and ${\beta}$-phellandrene(2.06%) 동정되어 이러한 성분들이 식해의 주요 향기 성분으로 나타났다. 식해의 메탄올 추출물을 용매 분획하여 얻은 각 분획물의 전자공여능을 측정한 결과 $200{\mu}m$ DPPH radical을 50% 환원시키는데 필요한 $SC_{50}$값이 헥산과 물층에서는 효과가 나타나지 않았으며, ethylacetate 층은 $327.92{\mu}g/mL$, butanol 층은 $968.83{\mu}g/mL$으로 나타났다. 혈압상승 억제효과를 살펴본 결과 헥산과 물 분획물에서는 전혀 효과가 없었으며 ethylacetate 층에서는 $IC_{50}$이 1.462mg/mL, butanol 층에서는 1.207mg/mL의 저해효과를 나타내었으며, xanthine oxidase에 대한 $IC_{50}$은 ethylacetate 층은 3.439mg/mL, butanol 층은 2.083mg/mL로 나타났다.