• 제목/요약/키워드: chloroform extract

검색결과 747건 처리시간 0.021초

대산의 분획별 추출물에서 항균활성 검색 (Screening of Antimicrobial Activity from Differential Extracts of Allii sativi Bulbus)

  • 김희석;배흥모;김신무;이현옥;김기영
    • 동의생리병리학회지
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    • 제16권6호
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    • pp.1184-1189
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    • 2002
  • Allii sativi Bulbus(garlic) have been shown to possess medicinal value, in particular, antimicrobial activity. In this study, we compared the efficacy on some pathogenic bacteria and fungus among several different extracts(water, hexane, ethyl acetate, methanol, chloroform) of Allii sativi Bulbus. Animal pathogenic bacteria and fungus(S. gallinarium: KCTC 2441, S. flexneri: KCTC 2361, E. cloacae: KCTC 2006, K. pneumonia: KCTC 2208, C. albicans: KCTC 1940) were used to test by measurement of minimum inhibitory concentrations(MIC) and disc diffusion. Allii sativi Bulbus were cut and mixed with water at 37℃ about 24 h and filtered, and several different solvents(hexane, chloroform, ethyl acetate, methanol) were respectively added to separate the fraction of each solvent. The antimicrobial(bacteriocidal) and antifungal effect were apparently shown from water extract, hexane and ethyl acetate extract against using strains(Staphylococcus gallinarium, Shigella flexneri, Enterobacter doacae, Klebsiella pneumonia, Candida albicans). Especially, the water extract showed the superior efficacy. And the clear zone size of water extract (11~27 mm) was greater than that of gentamycin, hexane extract and ethyl acetate extract against S. gallinarium. S. flexneri, K. pneumonia and C. albicans. Minimum inhibitory concentrations(MIC) of water extract appeared to around 2.0~7.5 ㎎/㎖ against S. gallinarium, S. flexneri, E. cloacae and K. pneumonia. The greater activity was shown by water extract because the MIC of water extract for C. albicans observed in very low concentration(<1.0 ㎎/㎖) compared to hexane(5.0 ㎎/㎖) and ethyl acetate(10.0 ㎎/㎖). Therefore, these results exhibited that water extract of Allii sativi Bulbus have stronger antimicrobial activity than hexane and ethyl acetate extract, and may be useful as topical medicine of superficial infections causing C. albicans as well as antifungal agents.

식중독유발 세균의 증식에 미치는 천초근 추출물의 영향 (Antimicrobial Effect of Rubia akane Nakai Extract on Food-Borne Pathogens)

  • 배지현;장혜정;정정임
    • 한국식품영양과학회지
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    • 제34권3호
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    • pp.389-394
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    • 2005
  • 약리실험 결과 강심작용, 지혈촉진작용, 항균작용, 항암작용 등이 밝혀진바 있는 천초근을 이용하여 항균성 및 천연 식품보존제로서의 이용가능성을 검색하여 보았다. 먼저 천초근의 뿌리성분을 petroleum ether, chloroform, ethylaetate, methanol 및 증류수를 이용하여 항균성분을 추출하여 9종의 식중독균(Staphylococcus aureus, Bacillus cereus, Salmonella Enteritidis, Shigella flexner, Escherichia coil, Salmonella Typhi, Shigella dysenteriae, Pseudomonas aeruginosa, Shigella sonnei)에 추출물의 농도를 250ppm, 500 ppm, 1,000ppm으로 달리하여 disc method로 실험한 결과 Salmonella Typhimurium애서 아주 약한 clear zone이 형성되긴 하였으나 거의 모든 균에서 항균작용이 있는 것으로 나타났다. 가장 큰 clear zone이 형성된 균은 Pseudomonas aeruginosa였고 추출물의 농도가 높아질수록 비례하여 항균효과가 크게 드러났다. 또 methanol 추출물에서 항균활성이 가장 잘 나타났으며 그 다음으로는 ethylacetate, chloroform, petroleum ether, 증류수 순이었다. 항균활성이 가장 잘 나타난 천초근의 methanol 추출물과 또 다른 겨우살이 추출물을 사용한 상승효과 여부를 알아보기 위한 실험결과 그람 양성균인 Bacillus cereus와 그람 음성균인 Pseudomonas aeruginosa에 대해 상승적인 항균효과를 나타내었다. 천초근의 methanol 추출물이 Bacillus cereus와 Pseudomonas aeruginosa균의 성장에 미치는 효과를 검정해 본 바 천초근 추출물의 농도가 진해짐에 따라 균의 증식을 억제하는 것으로 나타났고 Pseudomonas aeruginosa에서 더 두드러지게 증식이 억제되었다. 또 72시간 동안 그 성장 억제 효과가 지속됨을 알 수 있었다.

Leaves of Raphanus sativus L. Shows Anti-Inflammatory Activity in LPS-Stimulated Macrophages via Suppression of COX-2 and iNOS Expression.

  • Park, Hye-Jin;Song, Minjung
    • Preventive Nutrition and Food Science
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    • 제22권1호
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    • pp.50-55
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    • 2017
  • Raphanus sativus L. (RS) is a cruciferous vegetable that is widely consumed in Korea. The anticancer activity of leaves of RS (RSL) extract has been investigated; however, no studies focused on its anti-inflammatory effects. Therefore, the aim of the current study was to evaluate the anti-inflammatory effects of RSL extract. In brief, RSL powder was fractionated into n-hexane, chloroform, ethyl acetate, n-butanol, and water-soluble fractions. Lipopolysaccharide (LPS)-stimulated RAW264.7 cells were treated with each fraction for initial screening. It was found that the chloroform fraction significantly inhibited nitric oxide release in LPS-stimulated RAW264.7 cells with a half maximal inhibitory concentration value of $196{\mu}g/mL$. In addition, the mRNA and protein expression levels of inducible nitric oxide synthase, measured using reverse transcriptase-polymerase chain reaction and western blotting, respectively, were reduced in a concentration-dependent manner. Moreover, the inflammatory cyclooxygenase-2 enzyme expression decreased. Furthermore, the expression of nuclear factor-kappa B ($NF-{\kappa}B$), the key regulator of the transcriptional activation of the inflammatory cytokine genes, was reduced by the RSL chloroform fraction. Therefore, the results of our study suggest that RSL exhibits anti-inflammatory effects in LPS-stimulated macrophages via $NF-{\kappa}B$ inactivation.

Study of antibacterial and antifungal activity of traditional Cedrus deodara and Pinus roxburghii Sarg

  • Chaudhary, Amrendra Kumar;Ahmad, Shamim;Mazumder, Avijit
    • 셀메드
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    • 제2권4호
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    • pp.37.1-37.4
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    • 2012
  • In the present study, the volatile oil, chloroform extract and methanol extract of the woods of the plants Cedrus deodara and Pinus roxburghii were screened for their antibacterial and antifungal activities against Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus, Bacillus subtilis, Streptococcus pyogenes, Candida albicans, Aspergillus niger, and Aspergillus clavatus using the Agar diffusion method. The susceptibilities of the microorganisms to the extracts were compared with each other and with a selected standard antibiotic. It was observed that the volatile oil and chloroform extracts showed the significant antibacterial activities while the least antibacterial activity was recorded with the methanolic extracts. The higher Minimum Inhibitory Concentration value of the extracts and oils against fungus suggested that the plants may possess less antifungal activity. Phytochemical analysis and thin-layer chromatography profiling revealed the presence of flavonoids and terpenoids in the oil and chloroform extracts, which could explain the antimicrobial activity. The findings suggest that the Cedrus deodara and Pinus roxburghii have antimicrobial properties and they can be used in the treatment of infectious diseases. However, further work is required in order to isolate the active constituents of the plants responsible for the antibacterial activity.

In Vitro Screening of Anti-lice Activity of Pongamia pinnata Leaves

  • Samuel, Anbu Jeba Sunilson John;Radhamani, Suraj;Gopinath, Rejitha;Kalusalingam, Anandarajagopal;Vimala, Anita Gnana Kumari Anbumani;Husain, Hj Azman
    • Parasites, Hosts and Diseases
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    • 제47권4호
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    • pp.377-380
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    • 2009
  • Growing patterns of pediculocidal drug resistance towards head louse laid the foundation for research in exploring novel anti-lice agents from medicinal plants. In the present study, various extracts of Pongamia pinnata leaves were tested against the head louse Pediculus humanus capitis. A filter paper diffusion method was conducted for determining the potential pediculocidal and ovicidal activity of chloroform, petroleum ether, methanol, and water extracts of P. pinnata leaves. The findings revealed that petroleum ether extracts possess excellent anti-lice activity with values ranging between 50.3% and 100% where as chloroform and methanol extracts showed moderate pediculocidal effects. The chloroform and methanol extracts were also successful in inhibiting nymph emergence and the petroleum ether extract was the most effective with a complete inhibition of emergence. Water extract was devoid of both pediculocidal and ovicidal activities. All the results were well comparable with benzoyl benzoate (25% w/v). These results showed the prospect of using P. pinnata leave extracts against P. humanus capitis in difficult situations of emergence of resistance to synthetic anti-lice agents.

진균류의 증식과 대사에 미치는 방아(Agastache rugosa)추출물과 Estragole의 효과 (The Effect of Estragole Identified and Extracts from Agastache rugosa O. Kuntze on the Fungal Growth and Metabolism)

  • 박재림;박송희;김정옥;김수원;이수영
    • 한국식품위생안전성학회지
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    • 제12권1호
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    • pp.63-70
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    • 1997
  • The extracts from Agastache rugosa O. Kuntze, their chloroform and hexane fractions, and estragole identified from hexane fraction were tested to investigate the effects on the growth and metabolic activities of several true fungi. The fungi used were: Aspergillus oryzae KFCC 890, Aspergillus niger KCCM 11240, Saccharomyces cerevisiae IAM 4597, Saccharomyces ellipsoideus PNU 2215. The growth of S. Cerevisiae by treatment of water extract(1%), hexane fraction (0.05%), and estragole (0.05%) were inhibited 93%, 50%, and 33% respectively, and S. ellipsoideus was also inhibited markedly with delaying the alg phase maximum 12 hrs. The growth of A. oryzae was inhibited by treatment of extracts and fractions. The echanol production by S. cerevisiae was increased more than two times in the highest value around 42 hrs incubation by water extract, but chloroform fraction inhibited its production. The glucoamylase actibities by A. niger were strongly inhibited by hexane and chloroform fractions (0.05%). The invertase activity by S. cerevisiae using estragole (0.05%) reached to 57.5% of control group. S. cerevisiae treated with the estragole was damaged the cell wall and cell membrane, leaked the protoplasm, and observed broken pieces of cell.

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Antioxidant Properties of Ginseng (P. ginseng C.A. Meyer) Extracts by Organic Solvent Fractionation

  • Kim, Ji-Sang;Moon, Gap-Soon;Kim, Hyun-Oh;Lee, Young-Soon
    • Preventive Nutrition and Food Science
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    • 제12권4호
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    • pp.267-272
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    • 2007
  • The objective of this study was to investigate antioxidant activities of Panax ginseng extracted with various solvents including n-hexane, chloroform, EtOAC, n-butanol and water. Among the various ginseng extracts, ethyl acetate (EtOAC) extracts showed the most powerful scavenging activities against DPPH radicals. Among the other solvent extracts, the butanol extract seemed relatively more effective in scavenging activity, followed by chloroform, water and hexane extracts. Moreover, the highest reducing power and ferrous ion chelating activity were found in the EtOAC extract followed by other extracts of ginseng. EtOAC extracts, which exhibited the best antioxidant activities of all solvent extracts of ginseng, possessed higher concentrations of total phenolics (777.61 mg/100 g) than other extracts. These results suggest that EtOAC extracts of ginseng (P. ginseng C.A. Meyer) have the most effective antioxidant capacity compared to n-hexane, chloroform, n-butanol and water tested in this study, and has important applications for the pharmaceutical and food industries.

Bulnesia sarmienti 추출물의 항산화 및 항암효과 (The Antioxidant and Antitumor Effects of the Extract of Bulnesia sarmientia)

  • 조대현;민경진;차춘근
    • 한국식품위생안전성학회지
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    • 제22권2호
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    • pp.120-126
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    • 2007
  • 이 연구에서는 Bulnesia sarmienti의 기능성 식품으로서의 이용성을 증대시키기 위하여 각 용매별 분획추출물의 항산화 효과와 MTT검색법을 사용한 항암 효과를 측정하였다. 총 페놀 함량은 methanol, n-hexane, chloroform, ethyl acetate, butanol, 물 추출물에서 각각 6.85, 5.81, 6.30, 7.47, 6.48, 4.82%로 나타났다. 용매분획별 총 페놀 함량은 ethyl acetate추출물에서 가장 높게 나왔고, 비교적 총 페놀 함량이 높은$(0.10{\sim}4.55%)$ 과일류보다도 더 높았다. 전자공여능은 모든 용매추출물에서 농도가 높을수록 그 효과가 증가하였으며 $500{\mu}g/mL\;1000{\mu}g/mL$에서는 모든 추출물에서 80%이상의 높은 소거능을 보여 합성항산 화제인 BHT와 동등한 효과를 보였다. 아질산염 소거능 측정결과, $100{\mu}g/mL$에서 methanol, butanol, ethyl acetate, n-hexean, chloroform, 물 추출물은 각각 4.43, 12.55, 16.72, 1.86, 5.53, 5.77%로 낮은 활성이 나타났다. $500{\mu}g/mL$에서 methanol, butanol, ethyl acetate, n-hexean, chloroform, 물 추출물은 38.52, 33.39, 47.41, 21.17, 31.74, 18.02%로 $100{\mu}g/mL$에서보다 활성이 증가하였고, $1000{\mu}g/mL$에서는 ethyl acetate추출물이 73.29%로 가장 높은 활성을 나타내었다. Methanol, butanol, n-hexean, chloroform, 물 추출물은 각각 65.65, 65.02, 47.49, 52.51, 45.54%로 비교적 높은 활성을 보였다. 추출용매에 따른 암세포의 성장억제효과를 보면 위암세포인 SNU-1은 $100{\mu}g/mL$에서 n-hexane추출물이 61.6%로 가장 높은 억제효과를 나타내었고, ethyl acetate 와 물 추출물은 억제효과가 없었다. 자궁암세포인 Hela는 $100{\mu}g/mL$에서 n-hexane추출물이 75.1%로 가장 높은 억제효과를 나타내었고, 물 추출물은 억제효과가 없었다. 대장암세포인 HT-29도 $100{\mu}g/mL$에서 n-hexane추출물이 57.4%로 가장 높은 억제효과를 나타내었다. 이상의 결과를 종합해 보면, Bulnesia sarmienti는 항산화 및 항암효과가 있는 것으로 판단되며 기능성 식품으로서의 개발가능성을 기대할 수 있을 것으로 생각된다.

Antimicrobial, Antioxidant and Cytotoxic Activities of Dendropanax morbifera Léveille extract for mouthwash and denture cleaning solution

  • Kim, Ryeo-Woon;Lee, Sook-Young;Kim, Su-Gwan;Heo, Yu-Ri;Son, Mee-Kyoung
    • The Journal of Advanced Prosthodontics
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    • 제8권3호
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    • pp.172-180
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    • 2016
  • PURPOSE. The purpose of this study was to analyze the antimicrobial, antioxidant activity and cytotoxicity of Dendropanax morbifera $L{\acute{e}}veille$ extract for assessing whether Dendropanax morbifera $L{\acute{e}}veille$ can be used for the development of natural mouthwash and denture cleaning solution. MATERIALS AND METHODS. The extract was obtained from branches of Dendropanax morbifera $L{\acute{e}}veille$. The solvent fractions were acquired by fractionating Dendropanax morbifera $L{\acute{e}}veille$ extract using n-hexane, ethyl acetate, chloroform and butanol solvent. Paper disc test was used to evaluate the antimicrobial and antifungal activity of Dendropanax morbifera $L{\acute{e}}veille$ extract and solvent fractions against Streptococcus mutans and Candida albicans. The analysis of antioxidant activity was carried out through DPPH radical scavenging assay. The cytotoxicity of Dendropanax morbifera $L{\acute{e}}veille$ extract was analyzed through MTT assay using normal human oral keratinocytes. RESULTS. Dendropanax morbifera $L{\acute{e}}veille$ extract showed antimicrobial activity against Streptococcus mutans and especially Candida albicans. The solvent fractions of Dendropanax morbifera $L{\acute{e}}veille$ showed strong antimicrobial activity against Streptococcus mutans and Candida albicans in n-hexane and butanol solvent fraction, respectively. Dendropanax morbifera $L{\acute{e}}veille$ extract also showed outstanding antioxidant activity. Butanol, ethyl acetate, and chloroform solvent fraction of Dendropanax morbifera $L{\acute{e}}veille$ tended to have increased antioxidant activity as the concentration increased. Dendropanax morbifera $L{\acute{e}}veille$ extract showed high cell survival rate in cytotoxicity test. CONCLUSION. Dendropanax morbifera $L{\acute{e}}veille$ extract turned out to have antimicrobial, antioxidant activity and cytophilicity. Based on these results, it is expected that Dendropanax morbifera $L{\acute{e}}veille$ is applicable as an ingredient for natural mouthwash and denture cleanser.

백일해(百日咳) 유발균(誘發菌) Bordetella pertussis에 대한 호장근(虎杖根)의 생육(生育) 억제(抑制) 효과(效果) (Effective Antibacterial Activity of Reynoutria Japonica Against Bordetella Pertussis ATCC 9797)

  • 이주일;서운교;정운석
    • 대한한방내과학회지
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    • 제26권3호
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    • pp.543-550
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    • 2005
  • This study was designed to identify the effects of Reynoutria Japonica on antibacterial activity aganist Bordetella pertussis ATCC 9797 which is cause of whooping cough. The ethanol- and water-extracts of more than 80 oriental herbal medicine were Investigated by Kirby -Bauer method to determine their inhibitory effects on growth of B. pertussis ATCC 9797 in vitro. For that Reynoutria Japonica was selected. The ethanol-soluble extract of Reynoutria Japonica showed relatively high antivacterial activity against B. pertussis ATCC 9797. However, the water-soluble extract of Reynoutria Japonica showed no antibacterial activity. The ethanolic extract was further fractionated with organic solvents such as hexane, chloroform, and ethyl acetate, in that order. Among the fraction tested, the chloroform fraction showed the highest antibacterial activity when the ethanol-soluble extract of Reynoutria Japonica minial inhibitory concentration(MIC) was $25{\mu}g/m{\ell}l$. Results support a role far Reynoutria Japonica in inhibiting the cell growth of B. pertussis ATCC 9797, but further experimentation is required.

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