• Title/Summary/Keyword: anti-fungal

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Antibacterial and antifungal effects of Korean propolis against ginseng disease

  • Kim, Sung-Kuk;Woo, Soon Ok;Han, Sang Mi;Bang, Kyeong Won;Kim, Se Gun;Choi, Hong Min;Moon, Hyo Jung;Lee, Sung-Woo
    • International Journal of Industrial Entomology and Biomaterials
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    • v.39 no.2
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    • pp.82-85
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    • 2019
  • We investigated the anti-microbial activity of propolis against the pathogenic bacteria and fungi on ginseng. We selected six microbials that caused postharvest root rots in ginseng. Propolis extracts were prepared by using the ethanol extraction method. We seeded the bacteria and fungi related to ginseng disease on a specific culture medium, and treated it with propolis extracts by using the paper disc method. Propolis extracts indicate the anti-microbial activity against Paenibacillus polymyxa, Fusarium solani, Rhizoctonia solani AG-1 and Pythium ultimum. However, the anti-fungal activity of propolis is weak on Pseudomonas fluorescens subsp. Cellulosa and Colletotrichum gloeosporioides. As a result, the antimicrobial effects of propolis against microbial that prevent ginseng growth were confirmed. The antimicrobial effects are shown according to the concentration of propolis against root rot. The fungi also showed antibacterial effects in a dose-dependent manner.

Endophytic Diaporthe sp. ED2 Produces a Novel Anti-Candidal Ketone Derivative

  • Yenn, Tong Woei;Ring, Leong Chean;Nee, Tan Wen;Khairuddean, Melati;Zakaria, Latiffah;Ibrahim, Darah
    • Journal of Microbiology and Biotechnology
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    • v.27 no.6
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    • pp.1065-1070
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    • 2017
  • This study aimed to examine the anti-candidal efficacy of a novel ketone derivative isolated from Diaporthe sp. ED2, an endophytic fungus residing in medicinal herb Orthosiphon stamieus Benth. The ethyl acetate extract of the fungal culture was separated by open column and reverse phase high-performance liquid chromatography (HPLC). The eluent at retention time 5.64 min in the HPLC system was the only compound that exhibited anti-candidal activity on Kirby-Bauer assay. The structure of the compound was also elucidated by nuclear magnetic resonance and spectroscopy techniques. The purified anti-candidal compound was obtained as a colorless solid and characterized as 3-hydroxy-5-methoxyhex-5-ene-2,4-dione. On broth microdilution assay, the compound also exhibited fungicidal activity on a clinical strain of Candida albicans at a minimal inhibitory concentration of $3.1{\mu}g/ml$. The killing kinetic analysis also revealed that the compound was fungicidal against C. albicans in a concentration- and time-dependent manner. The compound was heat-stable up to $70^{\circ}C$, but its anti-candidal activity was affected at pH 2.

Comparision of Anti-microbial Oils as Natural Preservatives (천연방부제로서 항균오일의 항균력 비교)

  • Kim, Mi-Jin;Jung, Taek-Kyu;Hong, In-Gi;Yoon, Kyung-Sup
    • Journal of the Society of Cosmetic Scientists of Korea
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    • v.32 no.2 s.57
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    • pp.99-103
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    • 2006
  • Natural essential oils showed anti-microbial activity on relatively broad spectrum of bacterial and fungal species. These materials had much more intensive anti-microbial activities than synthetic preservatives on C. albicans, A niger, and P. acnes, especially. In the experimental group, anti-microbial activity was order of tea tree oil (from Melaleuca alternifolia) > methylparaben > phytoncide (from Chamaecyparis obtusa). Also, natural essential oils had anti-oxidative and anti-inflammatory effects. These results suggest that natural essential oils can be useful as good cosmetic ingredients such as natural preservatives and anti-oxidants.

The Hematological Effect of Excessive Crude Allium Tuberosum Extract Administrated in Large Dogs (과량의 부추 생즙 투여가 대형견의 혈액상에 미치는 영향)

  • 김주완;오혜원;김상규;김하동;이성동;장혜숙;박현정;정규식;박승춘
    • Journal of Veterinary Clinics
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    • v.19 no.1
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    • pp.55-60
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    • 2002
  • The Allium tuberosum is a perennial herb. From the ancient times, it has been used for food or medical purpose. Allium tuberosum is widely distributed in Korea, China, Japan and other countries. As herbal medicine, the Allium tuberosum has medical effects on lumbago, sthenia, diuresis, nocturia, hematemesis, anemia, haemorrhoid, hiccups, diarrhea, eczema, sunstroke, pollution and so on. Recently, the Allium tuberosum has been studied on its components, anti-microorganism action, anti-fungal action, anti-arteriosclerosis action, anti-cancer action. However, there has not been any study on hematological effect of allium tuberosum extract on the blood in large dogs whereas the effects of excess garlic and onion on the blood of cattle, horses, dogs, cats and sheep has been reported by many researchers. Thus, this study was performed to observe the hematological effect of excessive Allium tuberosum extract administrated in large dogs. 1. The Red Blood Cell(R3C) count was significantly decreased(p<0.05), Packed Cell Volume (PCV) count were significantly decreased(P<0.05), and Reticulocyte count was significantly increased(p<0.05) 2. The White Blood Cell(WBC) count was significantly increased(p<0.05).3. The Hemoglobin concentration was significantly decreased(p<0.05) and Mean Corpuscular Hemoglobin Concentration (MCHC) was increased. and Mean Corpuscular Volume(MCV) was significantly increased.(p<0.05). 4. The Reduced glutathione(GSH) and Met-Hemoglobin were significantly increased (p<0.05).

In vitro and in vivo Effects of Extracts of Lentinus edodes on Tumor Growth in a Human Papillomavirus 16 Oncogenes-transformed Animal Tumor Model -Apoptosis-mediated Tumor Cell Growth Inhibition- (자궁경부암동물세포에서 표고버섯의 in vitro 및 in vivo 항암효과 -Apoptosis에 의한 종양세포주의 성장억제-)

  • Park, Jeong-Min;Lee, Sung-Hyun;Kim, Jung-Ok;Park, Hong-Ju;Park, Jae-Bok;Sin, Jeong-Im
    • Korean Journal of Food Science and Technology
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    • v.36 no.1
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    • pp.141-146
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    • 2004
  • Fungal products indirectly mediate anti-tumor effects in vitro and in vivo. To investigate whether Lentinus edodes might possess direct anti-tumor substance, L. edodes was extracted and tested on human papillomavirus (HPV) 16 oncogenes-associated animal tumor cells (TC-1) and in an animal tumor model. Only water extract displayed direct anti-proliferative effects in TC-1 tumor cells in vitro. This inhibition was dose-dependent, and inhibitory concentration ($IC_{50}$) was $800\;{\mu}g/mL$. Fungal extracts also showed growth inhibition to human cervical cancer cells (CaSki and HeLa) similarly to TC-1 tumor cells. When fungal extracts were added at a high dose (1.5 mg/mL), cell growth was inhibited within 6 hr following extract treatment. Cell growth inhibition was blocked by heat treatment, but not by low pH, which is indicative of heat sensitivity of this anti-proliferative substance. Cell growth suppression was mediated by apoptosis, as determined by Annexin V and propidium iodide staining. When challenged with TC-1 cells, direct intratumoral injection of fungal extracts resulted in some positive effect on tumor growth inhibition, as compared to oral delivery. Results suggest that heat labile substance of L. edodes suppresses growth of HPV oncogenes-associated tumor cells through apoptosis.

A Case of Pulmonary Aspergillosis (폐 Aspergillosis 의 1치험례)

  • 박광훈
    • Journal of Chest Surgery
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    • v.6 no.2
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    • pp.171-174
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    • 1973
  • A case of pulmonary aspergillosis, strongly suspected before operation and confirmed after surgical intervention, was reviewed with related literatures. It has become to be a well recognized fact that pulmonary mycosis generally results from sapro-phytic colonization of previous lung cavities usually due to pulmonary tbc, lung abscess, cyst of bronchiectasis. Recently, the author experienced one case of pulmonary aspergillosis which had been diagnosed and treated as tuberculosis for 6 years. Sputum culture, immunologic study and X-ray findings constitute essential part of diagnosis. Surgical resection is the treatment of choice combined with systemic administration of anti-fungal agents to eradicate the disease completely.

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Isolation of Antimicrobical Compounds from the Ethyl Acetate Extract of Sophora flavescens (고삼의 에틸 아세테이트 추출물로부터 항균물질의 분리)

  • 이현옥;박낭규;정승일;김윤철;백승화
    • YAKHAK HOEJI
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    • v.45 no.6
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    • pp.588-590
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    • 2001
  • Two flavanones, (2S) -2'-methoxykurarinones (1) and kurarinones (2) , were isolated from the ethyl acetate extract of the roots of Sophora flavescense Ait. Their structrures were elucidated using NMR, UV and IR spectral analysis. These compounds exhibited a moderate antimicrobial activities against Staphylococcus aureus, Staphylococcus epidermidis Pseudomonas Putida and a weak anti-fungal activity against Candida albicans.

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Synthesis and Biological Evaluation of Allylamine Type Antimycotics

  • Chung, Soon-Young;Chung, Byung-Ho
    • Proceedings of the PSK Conference
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    • 2003.10b
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    • pp.187.3-188
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    • 2003
  • Structure-activity relationship studies of allylamine type of antimycotics were carried out to evaluate the effect of naphthyl and methyl portion of naftifine. Compounds with 4-fluorphenyl, 2-fluorophenyl, 2,4-dichlorophenyl, 2,6-dichlorophenyl, 4-nitrophenyl, and 2,3-dihydro-benzo[l,4]dioxin-6-yl instead of naphthyl group with hydrogen, methyl, and ethyl in the place of methyl in naftifine were synthesized and tested their in vitro anti-fungal activity against five different fungi. Eight compounds showed significant antifungal activity against T. mentagrophytes. (omitted)

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Ethanolic Extract of Pancake Mixture Powder Supplemented with Helianthus tuberosus Enhances Antidiabetic Effects via Inhibiting Inflammatory Mediator NO Production

  • Lee, Kyoung-Dong;Sun, Hyeon-Jin;Lee, Mina;Chun, Jiyeon;Shin, Tai-Sun;Choi, Kap Seong;Shim, Sun-Yup
    • Microbiology and Biotechnology Letters
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    • v.50 no.2
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    • pp.228-234
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    • 2022
  • Helianthus tuberosus is perennial plant as Compositae family and is shown various physiological activities such as analgesic, antipyretic, anti-inflammatory, anti-fungal, anti-spasmodic, aperient, cholagogue, diuretic, spermatogenic, stomachic, and tonic effects. In this study, we investigated the antidiabetic and anti-inflammatory effects of pancake mixture powder (PM) supplemented with H. tuberosus (PMH) in rat skeletal muscle L6 cells and murine macrophage RAW 264.7 cells, respectively. PM and PMH inhibited in vitro α-glucosidase activity. Glucose consumption was increased by PM and PMH without cytotoxicity in rat myoblast L6 cells. Western blot analysis revealed that PM and PMH down-regulated glycogen synthase kinase (GSK)-3β activation in L6 cells. PM and PMH inhibited inflammatory mediator, nitric oxide (NO) production without cytotoxicity in LPS-induced RAW 264.7 cells. The anti-diabetic and anti-inflammatory effects of PMH was more stronger than those of PM. Anti-diabetic and anti-inflammatory effects of PMH would be due to functional characteristics of the supplemented H. tuberosus and the presence of garlic and onion used as ingredients of PM. Taken together, our results that addition of functional materials such as H. tuberosus in product has synergic effects and PMH is potential candidate for treatment of diabetes through inhibiting inflammation.