• Title/Summary/Keyword: 균제도

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Antifungal Activity of 5 Antifungal Agents and Granitic Powder on Microsporum canis (Microsporum canis에 대한 5가지 항진균제와 맥반석 가루의 항진균 효과)

  • Kang Tae-hyung;Lee Jeong-chi;Won Young-ho;Oh Seok-il;Lee Chung-gil;Lee Chai-yong
    • Journal of Veterinary Clinics
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    • v.22 no.4
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    • pp.371-376
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    • 2005
  • The aim of this study was to determine tile inhibitory effect of granitic powder against Microsporum canis. Fourteen strains of M. canis isolated from dgs and cats with fungal dermatitis and two strains isolated from humans were used in this study. The in vitro antifungal activities of granitic powder and 5 commercialized antifungal agents (terbinafine, itraconazole, ketoconazole, griseofulvin and fluconazole) were compared. The antifungal effect was measured by the broth microdilution method and was expressed as the minimal inhibitory concentration (MIC). The MIC value of the granitic powder was ranged from 31.3 to 250mg/ml. Terbinafine showed the lowest MIC value among the 5 commercial antifungal agents $(0.0078-0.125{\mu}g/ml)$, while fluconazole showed the highest MIC values $(125-1,000{\mu}g/ml)$. The MIC range of itraconazole, griseofuvin and ketoconazole were $0.125-0.5{\mu}g/ml\;0.625-5{\mu}g/ml$ and $10-40{\mu}g/ml$ respectively. The Geometric mean(GM) MIC values of terbinafine and ketoconazole against M. canis isolated from human were $0.0078{\mu}g/ml\;and\;10{\mu}g/ml$, respectively, while the GM MIC values of these agents against M. canis isolated from animals were $0.063{\mu}g/ml\;and\;31.4{\mu}g/ml$, respectively. Other antifungal agents did not show any significant differences in antifungal activity against M. canis of animal or human origin. Although granitic powder was shown to have antifungal activity, it was much lower than that of the 5 commercialized antifungal agents.

Isolation and Identification of Antifungal Compounds from Eugenia caryophyllata Extracts (정향 추출물로부터 항진균성 물질의 분리 및 동정)

  • Lee, Jin-Man;Hur, Sang-Sun
    • Journal of the Korean Applied Science and Technology
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    • v.31 no.4
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    • pp.740-747
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    • 2014
  • Antifungal properties of clove(Eugenia caryophyllata) against food spoilage microorganism, Penicillium rugullosum IFO 4683 was investigated. Antifungal activity of the essential oil was as equivalent as potassium metabisulfite and myconazole. The clove extracts was fractionated to hexane, chloroform, ethyl acetate, butanol and water fraction. Hexane fraction showed the highest inhibitory effect on the Penicillium rugullosum IFO 4683. Hexane fraction was further fractionated by silica gel column chromatography and thin layer chromatography(TLC). The antifungal compound was isolated from their fractions and their chemical structures were identified as eugenol, eugenol acetate and chavicol by EI-MS, $^1H$-NMR and $^{13}C$-NMR.

Anti-MRSA Properties of Prodigiosin from Serratia sp. PDGS 120915 (Serratia sp. PDGS 120915가 생산하는 prodigiosin의 항 MRSA 특성에 관한 연구)

  • Ji, Keunho;Jeong, Tae Hyug;Kim, Young Tae
    • Journal of Life Science
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    • v.25 no.1
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    • pp.29-36
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    • 2015
  • Prodigiosin, a member of natural red pigment family, is produced by Serratia marcescens, and characterized by a common pyrrolylpyrromethane skeleton. This pigment has been reported with the effects of anticancer, immunosuppressant, antifungal, and algicidal activities. Methicillin-resistant Staphylococcus aureus (MRSA) is a major cause of hospital infections. In this study, anti-MRSA properties of prodigiosin isolated from Serratia sp. PDGS 120915 were investigated. We identified and purified prodigiosin using high performance liquid chromatography (HPLC) and evaluated anti-MRSA activity. Purified prodigiosin inhibited the growth of MRSA. The minimum inhibitory concentrations (MICs) of prodigiosin were determined to $32{\mu}g/ml$ against the MRSA strains. Fractional inhibitory concentration (FIC) indices of ampicillin and penicillin were indicated synergistic effects of prodigiosin on MRSA.

Effect of Lactobacillus helveticus HY7801 Oral Administration on Immune Response and Skin Improvement in Animal Model of Atopic Dermatitis (유산균제제(Lactobacillus helveticus HY7801)의 경구 투여가 아토피 피부염 동물모델의 면역 반응 및 피부 개선에 미치는 효과)

  • Park, Yang-Gyu;Cho, Jeong-Hwi;Choi, Jinyoung;Kim, Youngpil;Yu, Seon-Jeong;Kim, Okjin;Oh, Hong-Geun
    • The Korean Journal of Food And Nutrition
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    • v.33 no.2
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    • pp.174-182
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    • 2020
  • Probiotics improve the immune system. However, the effects of its lactic acid bacteria on atopic dermatitis relief and inflammation improvement is not fully understood. Recently, one of the probiotics, Lactobacillus helveticus HY7801 (HY7801), was found to have an anti-inflammatory effect. In this study, we investigated the effects of HY7801 on atopic dermatitis-induced animal models. After four weeks of oral administration, the group treated with HY7801 showed amelioration of the atopic dermatitis compared to the group receiving placebo. In the HY7801 treated group, the epidermal hyper-proliferation and collagen deposition were inhibited compared to the placebo group, and the secretion amount of the inflammatory factors, such as TNF-α, IL-4 were reduced. In conclusion, these results suggest that HY7801 acts as a functional probiotic via amelioration of the atopic dermatitis such as a decrease of epidermal hyper-proliferation, and collagen deposition and anti-inflammatory effects.

A Case of Angio-invasive Pulmonary Mucormycosis with Uncontrolled Diabetes Mellitus (당뇨 환자에서 진단된 대량 객혈을 보인 폐 모균증 1예)

  • Cho, Yu Ji;Kang, Myoung Hee;Kim, Hyeon Sik;Jeong, Yi Yeong;Jang, In-Seok;Kim, Ho Cheol;Hwang, Young Sil;Lee, Jong Deog
    • Tuberculosis and Respiratory Diseases
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    • v.64 no.6
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    • pp.451-455
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    • 2008
  • Pulmonary mucormycosis is an uncommon, serious opportunistic infection caused by fungi belonging to the order Mucorales and it occurs exclusively in debilitated or immuno-compromised hosts. It is known that the fungi can invade the blood vessels and cause serious ischemic necrosis and bleeding5. We experienced a fatal case of pulmonary mucormycosis in a diabetic 75-year-old man who developed a progressive necrotizing lesion despite administering proper and prompt medical and surgical treatment. We report here on this case along with a review of the relevant medical literature.

Fabrication of Polyethylene Films Coated with Antimicrobials in a Binder and Their Application to Modified Atmosphere Packaging of Strawberries (결착제 함유 항균성 물질로 코팅한 폴리에틸렌 필름의 제조 및 이를 이용한 딸기의 환경기체조절포장)

  • 김영민;이상백;조성환;이동선
    • Food Science and Preservation
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    • v.7 no.1
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    • pp.12-18
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    • 2000
  • As am economical and effective way of antimicrobial film fabrication , antimicrobial agents were coated on the LDPE film with a binder mediu. the fabricated films were then applied tomodified atmosphere packaging of fresh strawberries. A binder of polyamide was selected for the coating medium, based on the stability in water. 1% grapefruit seed extract-coated film showed the antimicrobial activity on the plate media against EScherichia coli, Staphylococcus aureus, bacillus subtilis , Bacillus cereus, Leuconostoc mesenteroides, Micrococcus flavus, Saccharomyces cerevisiae, while one with 10% Coptis chinesis extract inhibited only M. 림편 and one coated with 10% rheum palmatum extract did not inhibit any of 10 strains tested. The packages of fresh strawberries by using antimicrobial agents-coated films created the gas compositions of O2 1.4-5.5% and CO2 5.7-7.9%, and contributed to reduced growth of total aerobic bacteria and yeast/molds on the produced. However, their lower microbial count was not correlated directly with the reduced decay of the fruits.

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The Environmental Impact Quotient on Fruit and Vegetables Pesticides in Korea (국내 과채류에 등록된 농약에 대한 환경영향지수)

  • Oh, Kyeong-Seok;Lee, Byung-Moo;Sung, Ha-Jung;Oh, Hong-Gyu;Ihm, Yang-Bin;Kyung, Kee-Sung
    • The Korean Journal of Pesticide Science
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    • v.7 no.2
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    • pp.123-130
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    • 2003
  • The Environmental Impact Quotient(EIQ) has been used to organize the extensive toxicological and soil residue data available on some fruit vegetables pesticides into a usable form for field use. It addresses a majority of the environmental concerns that are encountered in agricultural systems including farm worker, consumer, ecological and environmental safety. The EIQ made use of the rating system by using the EIQ equation. The EIQ of pesticides registered for oriental melon was higher than that of other in terms of farm worker, consumer and environmental safety. Pesticides registered for red pepper showed highest EIQ in ecosystem. The EIQ decreased in order of insecticide> fungicide> herbicide> plant growth regulator. The environment Impact Quotient for the pesticides registered in fruit and vegetables decrease gradually.

Synthesis and Antimicrobial Activity of Polymethacryloylsulfadiazine (Polymethacryloylsulfadiazine의 합성과 항균활성)

  • Kim, Sun-Il;Na, Jae-Woon;Yun, Young-Jae;Choi, kyong-Rai
    • Journal of the Korean Chemical Society
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    • v.39 no.9
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    • pp.749-754
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    • 1995
  • The synthetic procedures to synthesize polymethacryloylsulfadiazine were searched by DCC method and Acid Chloride mothod. Polymeric drug was synthesized by Acid Chloride method in high yield (72%) but DCC method in low yield (23%). The antimicrobial activities of polymeric drug were investigated in terms of minimum inhibitory concentrations by the common two-fold dilution technique. Polymeric drug revealed an excellent antimicrobial Bacillus subtillis ATCC 6633, Mycrobacterium phlei IFO 3158, Micrococus luteus ATCC 9341, Salmonella typhimurium KCTC 1925, Klebsiella pneumoniae KCTC 1560 and similar activity against Staphylococcus aureus IFO 12732, Escherichia coli BE 1186, Escherichia coli AB 0111, Pseudomonas aeruginosa IFO 13130. Polymeric drug have no antimicrobial activity against Candida albicans IFO 1594.

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Antimicrobial Activity and Safety Test of Mixed Plant Extracts Including Phellodendron Amurense and Eucommia Ulmides Oliv (황벽나무, 두충나무 등을 포함하는 복합수목추출물의 항균활성 및 안전성 시험)

  • Kim, Hyunwoo;Shin, Hyejin;Hwang, Danbi;Lee, Jieun;Bak, Manchun;Kim, Jinhong;Kim, Donguk
    • Korean Chemical Engineering Research
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    • v.51 no.5
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    • pp.536-539
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    • 2013
  • In this study, mixed plant extracts including Phellodendro namurense and Eucommia ulmides Oliv were tested for antimicrobial activity and safety. Antimicrobial activity was measured by disc diffusion method using normal skin flora and opportunistic microbes such as Staphylococcus aureus, Pseudomonas aeruginosa, Escherichia coli and Candida albicans. As safety test, single dose oral toxicity test, single dose inhalation toxicity test and repeat dose inhalation toxicity test were done. From antimicrobial test, plant extracts showed significant antimicrobial activity Staphylococcus aureus, Pseudomonas aeruginosa, Candida albicans, however, did not indicate any antibacterial effect on Escherichia coli. From 3 kinds of safety tests, toxicity of mixed plant extracts was not observed. From experimental results, mixed plant extracts including Phellodendro namurense and Eucommia ulmides Oliv showed good potential for natural antimicrobial agent.

The Effectiveness of a New Systemic Fungicide EL-291 for the Control of Rice Blast Disease (새로운 침투성살균제 EL291의 벼 도열병 방제효과)

  • Hwang Byung Kook;Lee Eun Jong;Park Chang Seuk;Lee Kyung Hee
    • Korean journal of applied entomology
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    • v.15 no.2 s.27
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    • pp.57-60
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    • 1976
  • Experiments were carried out to determine the effectiveness of a new systemic fungicide EL-291 (5-Methyl-1, 2,4-triazolo (3,4-b) benzothiazole) for the control of rice blast disease in greenhouse and paddy field. The efficiency of EL-291 was much greater when applied before inoculation than when applied after inoculation. Kasugamin and Benlate were most effective as eradicants. For control of leaf blast, effectiveness of EL-291 was not significantly different than either Kasugamin or Benlate. However, EL-291 was considered more economical and reliable than either Kasugamin or Benlate. EL-291 required only a single foliar application or a transplant root soak, whereas two applications of the other fungicides were required. EL-191 was also more effective against panicle blast when applied only once, compared with two applications of Kasugamin or Benlate. The highest riceyields were obtained in plots treated with EL-29l.

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