• Title/Summary/Keyword: Natural product

검색결과 3,106건 처리시간 0.031초

Oriental medicine mangifera indica

  • Rai, Sujay;Basak, Souvik;Mukherjee, Kakali;Saha, BP;Mukherjee, Pulok K
    • Advances in Traditional Medicine
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    • 제7권1호
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    • pp.1-10
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    • 2007
  • Mangifera indica Linn. (MI) (Family: Anacardiaceae) is commonly known worldwide as mango and ‘Aam’ in India. MI shares an important place in treatment of several diseases in various ancient system of medicine like Ayurveda and other Indian System of Medicine and some other Traditional Medicines world wide. Almost all the parts of MI have been used in oriental medicine, so in this review attempt has being made to review the history, traditional uses, phytoconstituents and therapeutic potentials of mango.

Montmorillonite Clay Catalyzed Three Component, One-Pot Synthesis of 5-Hydroxyindole Derivatives

  • Reddy, B.V. Subba;Reddy, P. Sivaramakrishna;Reddy, Y. Jayasudhan;Bhaskar, N.;Reddy, B. Chandra Obula
    • Bulletin of the Korean Chemical Society
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    • 제34권10호
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    • pp.2968-2972
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    • 2013
  • A highly efficient and environmentally benign protocol has been developed for the first time to produce a wide range of biologically active 5-hydroxyindole derivatives using montmorillonite KSF clay as a reusable solid acid catalyst. The use of recyclable clay makes this procedure quite simple, more convenient and cost-effective.

Antimicrobial activity of Mongolian medicinal plants

  • Gonchig, Enkhmaa;Erdenebat, Sarnaizul;Togtoo, Ouyntsetseg;Bataa, Sukhkhuu;Gendaram, Odontuya;Kim, Young-Sup;Ryu, Shi-Yong
    • Natural Product Sciences
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    • 제14권1호
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    • pp.32-36
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    • 2008
  • The antimicrobial activity of seventy five ethanol extracts obtained from 67 different kinds of plant species of the Mongolian flora were evaluated by means of the disc diffusion method against five species of microorganisms, Escherichia coli, Enterococcus faecalis, Staphylococcus aureus, Micrococcus luteus and Pseudomonas aeruginosa. Among the plant extracts examined, 34 kinds of extracts demonstrated significant antibacterial activity against one or more species of microorganisms, respectively. Especially, the root extract of Paeonia anomala, the whole herb extract of Myricaria alopecuroides, the whole herb extract of comarum zalesovianum, the whole herb extract of Agrimonia pilosa and some other plant extracts demonstrated a particularly potent antimicrobial activity. The ethylacetate fractions obtained from the whole herb extract of Myricaria alopecuroides and from those of Sedum aizoon, Paeonia anomala, Sedum hybridum and Dasiphora fruticosa exhibited a particularly potent antibacterial activity especially against Staphylococcus aureus and Micrococcus luteus.

신갈나무 잎으로부터 분리한 페놀성 화합물의 함량분석 (Contents Analysis of phenolic compounds from the Leaves of Quercus mongolica)

  • 황인혁;;윤성혜;안혜신;왕혜수;이민원
    • 생약학회지
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    • 제48권4호
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    • pp.339-342
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    • 2017
  • Quercus mongolica (QM) is a species of Quercus native to Eastern Mongolia, Siberia, China, Japan, and Korea. QM has been used as Korean traditional medicine for the treatment of inflammation of the skin. Present work, the validation and content determination of the phenolic compounds which were isolated from the leaves of QM, including pedunculagin (1) and kaempferol-3-O-(6"-galloyl)-${\beta}$-D-glucopyranoside (2) were conducted through High-Performance Liquid Chromatography (HPLC). As a result, the contents of these compounds were 4.14% and 0.76% in QM extract, respectively.

Extraction of seven major compounds from Agastache rugosa (Fisch. & C.A.Mey.) Kuntze: optimization study using response surface methodology

  • Yang Hee Jo;Seong Mi Lee;Doo-Young Kim;Yesu Song;Hocheol Kim;Mi Kyeong Lee;Sei-Ryang Oh;Hyung Won Ryu
    • Journal of Applied Biological Chemistry
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    • 제66권
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    • pp.81-89
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    • 2023
  • The purpose of this study is to demonstrate the potential enhancement of the flavonoid contents from Agastache rugosa, which can be obtained as raw materials for functional products in the food medicine industry by identifying important factors for efficient preparation to save costs and time in terms of economic factors. For this reason, response surface methodology using Box-Behnken design was used to optimize the extraction conditions for the maximum yield of seven major compounds from A. rugosa. The optimum conditions were obtained with an ethanol concentration of 60.0%, a temperature of 50 ℃, and an extraction time of 33.6 min, meaning that the regression analysis fits the experimental data well. Under these conditions, the seven major compounds 1-7 had observed values of 2.169, 2.135, 0.697, 2.485, 0.105, 1.247, and 0.551%, respectively. These results show that the observed values are in good agreement with the predicted values in the regression model. This process for optimization study exhibited a basic protocol for obtaining stable ingredients from A. rugosa that are appropriate for the development of effective functional products.

천연염색제품 구매 평가기준 및 구매 후 만족도 (A study on the Purchase Appraisal Standard and Post-purchase Satisfaction of Natural Dyeing Products)

  • 박영희
    • 한국의류산업학회지
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    • 제14권1호
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    • pp.64-74
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    • 2012
  • The purpose of this study was to find purchase appraisal standard and post-purchase satisfaction for natural dyeing products. The data used for this study were collected from the women in their from 20's to 50's who are living in the regions of Busan, Ulsan, and Gyeongnam in Korea. The questionnaire of 537 copies was used for a statistical analysis. To analyze data, 2-test, t-test, Cronbach's a test, factor analysis, ANOVA, Duncan test, regression analysis, etc. were carried out. A used statistical package was SPSS 14.0. The analysis results were as follows. The purchase appraisal standards for natural dyeing products were identified as practicality and reliability, suitability of use, symbolic property of status, design property, and convenience of buying. As the analysis result for purchase appraisal standard according to the demographic characteristics, the purchase appraisal standard according to most demographic characteristics showed significant difference. The factors of post-purchase satisfaction for natural dyeing products were verified as product modification and durability, design and price, hygienic property and product quality. As the analysis results of post-purchase satisfaction for natural dyeing products according to demographic characteristics, the post-purchase satisfaction according to demographic characteristics showed significant difference. The factors affecting post-purchase satisfaction were verified as product quality, kinds of item, color change, product lifespan, color change, etc. Consequently, because the purchase appraisal standard of natural dyeing product is very various, it is necessary to enhance post-purchase satisfaction of natural dyeing products by reflecting these factors in advance at the product development stage.

Anticomplement Activities of Oleanolic Acid Monodesmosides and Bisdesmosides Isolated from Tiarella polyphylla

  • Park, Si-Hyung;Oh, Sei-Ryang;Jung, Keun-Young;Lee, Im-Seon;Ahn, Kyung-Seop;Kim, Jae-Gil;Lee, Jung-Joon;Lee, Hyeong-Kyu
    • Archives of Pharmacal Research
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    • 제22권4호
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    • pp.428-431
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    • 1999
  • Seven known oleanolic acid glycosides (1-7) were isolated form the MeOH extract of Tiarella polyphylla. The structures were identified to be 3-O-($\beta$-glucopyranosyl) oleanolic acid (1), 3-O-[$\beta$-D-glucopyranosyl-(1 3)-$\beta$-D-glucopyranosyl] oleanolic acid (2), 3-O-D-[$\beta$-D-glucopyranosyl-(1 2)-$\beta$-D-glycopyranosyl] oleanolic acid (3), 3-O-[$\beta$-D-glucopyranosyl-(1 3)-$\beta$-D-glucopyranosyl] oleanolic acid 28-O-$\beta$D-glucopyranosyl ester (4), 3-O-[$\beta$-D-glucopyranosyl-(1 2)-$\beta$-D-glucopyranosyl] oleanolic acid 28-O-$\beta$-D-glucopyranosyl ester (5), 3-O-[a-L-rahmnopyranosyl-(1 3)-$\beta$-D-glucururonopyranosyl] oleanolic acid (6), and 3-O-[$\alpha$-L-rhamnopyranosyl-(1 3)-$\alpha$-D-glucuronopyranosyl] oleanolic acid 28-O-$\alpha$-D-glucopyranosyl ester (7) on the basis of physicochemical and spectral data. These triterpene glycosides were tested for the anti-complement activity and hemolytic activity. Bisdesmosidic saponins, 4, 5, and 7, showed anti-complement activity; in contrast, monodesmosidic saponins, 1-3, and 6, showed direct hemolytic activity. Methyl esterified monodesmosidic saponins showed anti-complement activity at a low concentration and hemolytic activity at a high concentration.

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오미자(Schisandra chinensis)의 국내 산지별 화학적마커 선정을 위한 LC/MS 기반의 대사체학 접근법 (LC/MS-based metabolomics approach for selection of chemical markers by domestic production region of Schisandra chinensis)

  • 김인선;오선민;송하은;김두영;윤다혜;이대영;류형원
    • Journal of Applied Biological Chemistry
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    • 제66권
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    • pp.467-476
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    • 2023
  • 오미자(Schisandra chinensis)는 오미자과에 속하는 낙엽활엽덩굴식물로 한국, 일본, 중국, 대만 등 동아시아에 널리 분포한다. 오미자에 함유된 주요 성분에는 리그난 화합물뿐만 아니라 트리테르페노이드 화합물도 포함되어 있는 것으로 보고되었다. 한국 산지별 오미자의 특성을 구별하기 위해 대사산물 프로파일링과 다변량 통계 분석 기법인 PCA을 수행하여 판별식을 설정하였고, 그 결과 triterpenoids 16종, lignan 9종, flavonoid, phenylpropanoid, fatty acid 각 1종을 동정하였다. 또한 다변량 통계분석을 통해 OPLS-DA의 s-plot 모델을 적용하여 단양, 문경, 거창, 평창의 4개 그룹을 구분하는 것을 확인하였고, lanostane, cycloartane, 그리고 schiartane triterpenoid, dibenzocyclooctadiene lignan 이 각각 화학적마커로 동정하였다.

Brine shrimp lethality and cytotoxicity assay of Araucaria bidwillii Hook in human carcinoma cell lines

  • Ahamed, KFH Nazeer;Kumar, V;Manikandan, L;Wahile, Atul M;Mukherjee, Kakali;Saha, BP;Mukherjee, Pulok K
    • Advances in Traditional Medicine
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    • 제5권1호
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    • pp.21-28
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    • 2005
  • The leaf extracts of Araucaria bidwillii Hook. (Araucariaceae) were evaluated for their cytotoxic effect in various human cancer cell lines. Preliminary investigation by brine shrimp lethality assay indicated that $LC_{50}$ value of various successive extracts were found to be less than $1000\;{\mu}g/ml$, where the ethyl acetate extract showed maximum activity of less than $100\;{\mu}g/ml$. Further cytotoxic evaluation of various leaf extracts of Araucaria bidwilli Hook was carried out in four different human cancer cell lines-acute myeloblastic leukemia (HL-60), chronic myelogenic leukemia (K-562), breast adenocarcinoma (MCF-7) and cervical epithelial carcinoma (HeLa). Cytotoxicity was assessed by trypan blue dye exclusion method and 3-(4,5-dimethyl thiazole-2yl)-2,5-diphenyl tetrazolium bromide (MTT) reduction assay. From the present investigation it was found that the ethyl acetate and methanol extract of Araucaria bidwilli Hook was found to be more effective in leukemic cell lines and was less effective in MCF-7 and HeLa. The $IC_{50}$ value of the ethyl acetate extract in leukemic cell lines was found to be $28.18\;and\;34.64\;{\mu}g/ml$ and methanol extract was found to be $33.11\;&\;39.81\;{\mu}g/ml$. It can be concluded that various extract from the leaves of Araucaria bidwillii Hook. posses cytotoxic activity tested in brine shrimps and various human carcinoma cell lines.

히어리나무의 페놀성 화합물 및 세포독성활성 (Phenolic Compounds from the Twigs of Corylopsis coreana Uyeki and Their Cytotoxic Activity)

  • 권오길;김충섭;서원세;박경진;차준민;최상운;권학철;이강노
    • 생약학회지
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    • 제47권1호
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    • pp.1-6
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    • 2016
  • Phytochemical investigation of the twigs of Corylopsis coreana afforded 10 phenolic compounds, bergenin (1), 6'-O-galloylbergenin (2), 3'-O-galloylbergenin (3), (-)-catechin (4), (-)-epicatechin (5), (-)-epicatechin-3-O-galloyl ester (6), 4-methoxy-3,-5-dihydroxybenzoic acid (7), gallic acid (8), 2,4,6-trimethoxyphenol-1-O-${\beta}-\small{D}$-glucopyranoside (9), and 2,4,6-trimethoxyphenol-1-O-${\beta}-\small{D}$-(6-O-galloyl)-glucopyranoside (10). Their structures were characterized by spectroscopic data and identified by comparing these data with those in the literatures. The compounds 3, 9 and 10 were isolated for the first time from this source. All the isolates (1-10) were tested for their cytotoxic activity against A549, SK-OV-3, SK-MEL-2, and HCT15 cell lines in vitro using the SRB bioassay. The compounds 5, 7 and 8 exhibited selective cytotoxic activity against SK-MEL-2 cell line.