• Journal of the Korean Society of Food Science and Nutrition
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• v.34 no.10
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• pp.1606-1610
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• 2005

The effects of Whangkumtang extract and Scutellariae radix extract on the microbial growth were investigated. The antimicrobial activities and cell growth inhibiting effects were investigated to selected strains with different concentrations of Whangkmtang and Scutellariae radix extracts. Whangkmtang and Scutellariae radix extracts showed the antimicrobial activities on Staphylococcus aureus, Bacillus cereus, Shigella sonnei, Shigella flexneri, Salmonella Typhimurium, Salmonella Enteritidis, Vibrio parahaemolyticus, Escherichia coli O111 and Escherichia coli O126. Whangkumtang and Scutellariae radix extracts did not show the antimicrobial activity on Listeriamonocytogenes. Scutellariae radix extract showed the antimicrobial activity on Escherichia coli O157 but Whangkumtang extract did not, Minimum inhibitory concentrations (MIC) of Whangkumtang extract for each strain appeared to 40 mg/mL on Staphylococcus aureus and Bacillus cerus, 100 mg/mL on Shigella Flexneri and Salmonella enteritidis. The MICs of Sutellariae radix extract appeared to 10 mg/mL on Bacillus cereus, 20 mg/UL on Staphylococn aureus, Shigellanexneri and Salmonella Enteritidis. Scutellariae radix extract showed the higher antimicrobial activity than Whangkumtang extract. The cell growth inhibitions by Whangkumtang and Scutellariae radix extracts were observed from Staphylococcus aureus and Bacillus cereus, repectively, during 48-hr incubation period.

• Korean Journal of Veterinary Service
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• v.38 no.2
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• pp.65-70
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• 2015

The present study was to investigate in vitro antimicrobial effects of propolis against six different fish bacterial pathogens, Aeromonas hydrophila, Edwardsiella tarda, Vibrio vulnificus, V. parahaemolyticus, A. salmonicida subsp. masoucida, A. salmonicida subsp. salmonicida) using minimum inhibitory concentration (MIC) and minimum bacteriocidal concentration (MBC) tests. In the results, propolis exhibited antimicrobial activity against all bacteria used in the present study, but there was no marked difference in bacterial species except Vibrio species. Collectively, propolis was thought to be an usefulness antimicrobial substance for controlling bacterial diseases in the fish industry.

• Journal of the Korean Society of Food Science and Nutrition
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• v.23 no.6
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• pp.994-1000
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• 1994

Hot water extract from mugwort (Artemisia asiatica nakai) leaves and tea inhibited the growth of Bacillus subtilis by adding to the nutrient broth 1.0% and 0.5% concentration, respectively. Among the important compounds that contributing mugwort like flavor to the mugwort leaves and tea were considered, authenic compound of thujone, caryophyllene and farnesol showed bactericidal effect for Escherichia coli, Enterobacter aerogenes, Vibrio paraheaemolyticus, Psudomonas aeruginosa, Bacillus subtilis and Staphylococcus aureus when teste by paper disc method ( 8 mm diameter). The mixture of caryophyllene and farnesol was more bactericidal effect for various bacteria than the mixture of thujone, caryophyllene and farnesol was more bactericidal effect for various bacteria that the mixture of thujone, caryophyllene and farnesol or each compounds . Especially, the mixture of caryophyllene and farnesol showed strong bactericidal effect (diameter of inhibition zone>40mm) for Vibrio parahaemolyticus , Enterobacter aerogenes and BAcillus subtilis.

• Advances in Traditional Medicine
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• v.8 no.3
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• pp.295-301
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• 2008

The methanolic root extract of tissue cultured Pluchea indica (L.) Less. was tested for its antibacterial potentiality against 102 different strains of bacteria belonging to both Gram positive and Gram negative groups. The bacteria could be arranged according to their decreasing order of sensitivity as follows: Staphylococcus aureus, Vibrio cholerae, Bacillus spp. Vibrio parahaemolyticus, shigellae, Salmonella spp., and Escherichia coli. The extract was found to be bacteriostatic in nature against Salmonella typhimurium NCTC 74. When administered to Swiss strain of white mice at the doses of 0.5 and 1.0 mg/kg body weight, the extract could significantly protect the animals challenged with 50 MLD of S. typhimurium NCTC 74. According to the chi-square test, the in vivo data is highly significant (P < 0.001).

• Applied Biological Chemistry
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• v.31 no.1
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• pp.33-37
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• 1988

Three species of Pediococci, Pediococcus pentosaceus, Pediococcus acidilactici and Pediococcus halophilus were isolated from Kimchi. P. pentosaceus and P. acidilactici showed inhibitory activity against Streptococcus faecalis, Pseudomonas sp., P20 and Vibrio parahaemolyticus. However, the growth of all test organisms was not inhibited by P. halophilus. Ten strains contained one to seven plasmids, ranging in size from 1 to 60 megadaltons.

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2001.10a
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• pp.147-148
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• 2001

Many people living in Asia countries, particularly Korea, Japan and China, have consumed very widely fresh seafood products, such as shrimps, oysters, mussels and other marine invertebrates and fishes, without any heating or cooking. A variety of Vibrio spp., including V. parahaemolyticus, V. cholera. V. vulnificus, and V. fluvialis, lives in these seafoods and cause great problems associated with human disease. A strong antimicrobial agent to effectively inhibit the growth of these pathogenic bacteria in in vivo or in vitro is urgently need for preventing fish and human diseases. (omitted)

• The Journal of the Korean Society for Microbiology
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• v.35 no.5_6
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• pp.355-355
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• 2000

• The Journal of the Korean Society for Microbiology
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• v.35 no.5_6
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• pp.367-367
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• 2000

• Journal of Life Science
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• v.23 no.1
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• pp.44-54
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• 2013

To determine the potential function of Rhus javanica in Korean medicine, it was fermented with each strain of Lactobacillus spp. Each strain of Lactobacillus spp. was inoculated in lactobacilli MRS broth, and 5 mg/ml of methanol extract of Rhus javanica was added. In mouse hippocampal HT22 cells, ethyl acetate extract of R. javanica fermented with L. brevis KCTC 3498 induced heme oxygenase-1 expression and showed a significant cytoprotective effect on glutamate-induced oxidative damage. The cytoprotective effect was related to the transcription of the nuclear factor E2-related factor2 (Nrf2), which is responsible for the induction of heme oxygenase-1 within the nucleus. The antimicrobial, antioxidant, and heme oxygenase-1 expression activities of fermented R. javanica were measured after extraction with ethyl acetate. R. javanica fermented with L. plantarum subsp. plantarum KCTC 3108, L. fermentum KCTC 3112, and L. brevis KCTC 3498 had higher antioxidant activity than nonfermented R. javanica. The fermented R. javanica with L. plantarum subsp. plantarum KCTC 3108, L. casei KCTC 3109 after ethyl acetate extraction showed antibacterial activity against Bacillus subtilis PCI 219, Escherichia coli KCTC 1682, Shigella flexneri KCTC 2517, Vibrio parahaemolyticus KCTC 7471, and Pseudomonas aeruginosa KCTC 2004. An ethyl acetate extract of the fermented R. javanica with Lactobacillus brevis KCTC 3498 exhibited stronger antibacterial activity than a nonfermented one against strains of B. subtilis PCI 219, E. coli KCTC 1682, S. flexneri KCTC 2517, and V. parahaemolyticus KCTC 7471.

• Korean Journal of Environmental Biology
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• v.17 no.4
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• pp.439-448
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• 1999

To investigate the population dynamics and survival of Genus Vibrio, population densities of aerobic saprophytic bacteria and Vibrio groups were measured 4 times in the intertidal waters of the Yellow Sea near Kunsan from November, 1997 to June, 1998. The distribution of heterotrophic bacteria during the survey periods by plate count and direct count method ranged from 1.2$\pm$0.6$\times$10$^3$~2.0$\pm$1.5$\times$10$^4$CFU ml­$^1$and from 6.0$\pm$4.0$\times$10$^{5}$ ~1.9$\pm$1.5$\times$10$^{7}$ cells ml­$^1$, respectively. Vibrio groups were distributed in the range of 1$\times$10 and 6$\pm$2.2$\times$10$^2$CFU ml­$^1$. The proportion of Vibrio groups to total heterotrophic bacteria was between 0.1 and 6% during the survey periods. A total of 51 isolates was obtained from TCBS agar plates and identified to species level by Biolog Identification System$^{TM}$. As a result, dominant genera were V, mediterranei, V aitguillarum, tr metschnikovii, and V. parahaemolyticus, and isolates were clustered into 26 groups based on the relatedness of average linkage clustering method at 70% level. As for the susceptibility of 51 isolates to 7 kinds of antibacterial agents (gentamicin, ampicillin, chlorarnphenicol, streptomycin, kanamycin, tetracycline, carbenicillin), 96% of isolates showed high resistance to more than one antibiotics and 65% of isolates contained a plasmid, of which size was observed greater than 12 kb, The number of cells of 3 tested strains (V. anguillarum, V. vulnificus, and V. metschnikovii) in filtered aged seawater decreased by approximately 1 to 5 orders of magnitude during 30-d incubation. In most cases, the numbers of cells decreased rapidly until day 3, then decreased slowly by day 30. The number of cells incubated at 15$^{\circ}C$ showed higher survival than those at 4$^{\circ}C$ and $25^{\circ}C$. These results may be considered for the basic supporting data in the risk assessment of vibriosis in summer.r.