• Title/Summary/Keyword: group bacteria

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Selective Media for Isolation and Enumeration of Lactic Acid Bacteria from Kimchi (김치에서 젖산균의 선발 및 계수를 위한 선택배지)

  • 이명기;박완수;강국희
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.25 no.5
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    • pp.754-760
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    • 1996
  • Selective media for isolation and enumeration of lactic acid bacteria from kimchi were compared using 36 strains of lactic acid bacteria from kimchi and dairy products. Among the selective media, KF Streptococcus agar showed the best result for the selection of Enterococcus group and Pediococus group, and M-17 agar with pH indicator for Lactococcus group, the m-LBS agar for Lactobacillus group, and PES-3 agar for Leuconostoc group.

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Anti-Obesity Effects of Lactic Acid Bacteria-Fermented Dioscoreae Rhizoma Powder on High Fat Diet-Fed Animal Model (고지방식이에 의한 비만 동물모델에서 유산균 마분말의 항비만 효과)

  • Park, Young Mi;Oh, Hong Geun;Kang, Yang Gyu;Kim, Young Pill;Sin, Hong Sig;Jang, Seung Hwan;Kim, Hee Jeong;Lee, Sang Wang;Lee, Hak Yong
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.29 no.3
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    • pp.267-272
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    • 2015
  • The purpose of this study was to examine the antiobesity effects of lactic acid bacteria-fermented Dioscoreae Rhizoma powder (LDR) in Sprague-Dawley rats with high-fat diet (HFD)-induced obesity. Rats were divided into 5 groups: normal diet group, control (high fat diet-vehicle) group, 0.4 g/kg LDR (high fat diet + 0.4 g/kg lactic acid bacteria-fermented Dioscoreae Rhizoma powder) group, 1 g/kg LDR (high fat diet + lactic acid bacteria-fermented Dioscoreae Rhizoma powder) group, 2.5g/kg LDR (high fat diet + lactic acid bacteria-fermented Dioscoreae Rhizoma powder) group. Our results indicate that LDR administration has effects on decreasing of body weight, fat weight, blood parameters and adipocyte size in the obesity animals. In addition, verified that fat degeneration and ballooning degeneration were alleviated in the experimental group fed on a high fat diet combined with LDR groups. These results indicate that lactic acid bacteria-fermented Dioscoreae Rhizoma powder may reduce elevating body weight and lipid accumulation in rat fed a high fat diet, suggesting its usefulness as a functional food for reducing body fat and obesity.

Study on the Activation of Microbial Products by Using the Leachate (침출수를 이용한 미생물 제제의 활성에 관한 연구)

  • 이장훈;정준오;남명흔
    • Journal of Environmental Health Sciences
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    • v.24 no.3
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    • pp.70-76
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    • 1998
  • Activation bacteria, identified from commercial microbial products, were applied to leachate treatment. Total seven strains of bacteria Enterobacteriaceae spp. (5), Bacillus sp. (1), Aeromonas sp. (1) were seeded in the leachate and cultured in the shaking incubator at 25$^{\circ}$C and 250 rpm. While cultured, they were sampled in given time intervals and the removal rates of SS, COD, BOD, T-N.and T-P were measured an indicators of leachate treatment. Through the screening test, four of 7 strains of bacteria were considered to be effective and they were named as "effective group". The capability of leachate treatment was observed on three different groups of bacteria single, effctive, and total mixed. The result showed that the removal rates of COD and SS for the total mixed group were 64 and 71% respectively. BOD removal rate was reached nearly 99% by seeding of effective griup and removal rates of T-P and T-N were 83 and 82% respectively. However seeding of single strain was less effective than that of any mixed group in leachate treatment.

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Detailed Analysis on the Toxic Effect of Bisphenol A to the Liver and Testis in the Rat

  • Choi Ju-Yun;Yoo Min
    • Biomedical Science Letters
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    • v.11 no.3
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    • pp.333-336
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    • 2005
  • Environmental endocrine disruptors are very toxic to the animals including humans. They are hormone-like acting chemicals which can be found in our normal daily life. We have examined the toxic effect of bisphenol A and if lactic acid bacteria could suppress this toxic effect. Thirty rats were divided into three groups (control, bisphenol A treated, bisphenol A and lactic acid bacteria treated). Treatments were carried out at an interval of 12 hours for each group. Control group showed normal and clear morphology of tissues. Cells were fine in their shape and color, and density was high enough for the normal function. However, bisphenol A treated group was abnormally destructed in cell morphology. In the testis, sperms were totally destructed. When treated with lactic acid bacteria together, the toxic effect of bisphenol A was clearly decreased. This study indicated that bisphenol A was toxic in any concentration especially for the liver and testis, however, lactic acid bacteria could suppress the toxic effects of bisphenol A.

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Efficacy of Bifidobacterium Tetragenous Viable Bacteria Tablets for Cancer Patients with Functional Constipation

  • Liu, Jin;Huang, Xin-En
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.23
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    • pp.10241-10244
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    • 2015
  • Objective: To investigate the efficacy and side effects of Bifidobacterium tetragenous viable bacteria tablets in treating cancer patients with functional constipation during chemotherapy. Methods: A consecutive cohort of 100 cancer patients with functional constipation were divided into two equal groups: patients in the experimental group were given Bifidobacterium tetragenous viable bacteria tablets combined with chemotherapy, while patients in the control group received chemotherapy alone. After 4 weeks, the efficacy and side effects in treating functional constipation were evaluated. Results: Constipation in 48 patients in experimental group was controlled (9 returned to normal), with a total response rate of 96%, and 1 patient reported diarrhea (2%). In contrast only 16 patients in the control group demonstrated improvement and 34 were still constipated after chemotherapy, with a response rate of 32%. The difference in response rate was statistically significant (P<0.05). Conclusion: This study suggested that Bifidobacterium tetragenous viable bacteria tablets are effective and safe in treating cancer patients with functional constipation during chemotherapy.

Clinical trial of Aromatherapy on Postpartum Mother′s Perineal Healing (아로마테라피가 산모의 회음부 치유에 미치는 효과)

  • 허명행;한선희
    • Journal of Korean Academy of Nursing
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    • v.34 no.1
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    • pp.53-62
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    • 2004
  • Purpose This study was designed to verify the effect of aromatherapy on a postpartum mother's perineal healing. Method The research design was a clinical trial. The methods of aromatherapy were applied sitz bath or soap application using essential oils with Lavender, Myrrh, Neroli, Rose, Grapefruit, Mandarin, Orange, and Roman Chamomile. The subjects of this experiment were postpartum mothers who delivered vaginally with an episiotomy. They were allocated to one of three groups; the aroma-sitz bath group, aroma-soap application group or control group. To evaluate the effect of aromatherapy, the perineal healing status was measured using the REEDA scale and smears of episiotomy wound were obtained. The data were analyzed by repeated measures of ANOVA, ANCOV A, x$^2$- test, and multiple response analysis via SPSS program. Results The REEDA scale was significantly low in the experimental group at postpartum 5th and 7th days (P=.009, P=.003), respectively. Most were observed ‘few’(5-10 bacteria per field) bacteria in the smears of episiotomy wound. The one bacteria was identified in the 50.8% of subjects in pretest and two bacteria in the 60.3% in posttest. Most frequently identified bacteria were Escherichia coli and Enterococcus faecalis. Conclusion In conclusion, these findings indicate that postpartum aromatherapy for perineal care could be effective in healing the perineum perineal care could be effective in healing the perineum.

Diversity of Butyrivibrio Group Bacteria in the Rumen of Goats and Its Response to the Supplementation of Garlic Oil

  • Zhu, Zhi;Hang, Suqin;Mao, Shengyong;Zhu, Weiyun
    • Asian-Australasian Journal of Animal Sciences
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    • v.27 no.2
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    • pp.179-186
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    • 2014
  • This study aimed to investigate the diversity of the Butyrivibrio group bacteria in goat rumen and its response to garlic oil (GO) supplementation as revealed by molecular analysis of cloned 16S rRNA genes. Six wethers fitted with ruminal fistulas were assigned to two groups for a cross-over design with 28-d experimental period and 14-d interval. Goats were fed a basal diet without (control) or with GO ruminal infusion (0.8 g/d). Ruminal contents were used for DNA extraction collected before morning feeding on d 28. A total bacterial clone library was firstly constructed by nearly full-length 16S rRNA gene cloned sequences using universal primers. The resulting plasmids selected by Butyrivibrio-specific primers were used to construct a Butyrivibrio group-specific bacterial clone library. Butyrivibrio group represented 12.98% and 10.95% of total bacteria in control and GO group, respectively. In libraries, clones were classified to the genus Pseudobutyrivibrio, Butyrivibrio and others within the family Lachnospiraceae. Additionally, some specific clones were observed in GO group, being classified to the genus Ruminococcus and others within the family Ruminococcaceae. Based on the criterion that the similarity was 97% or greater with database sequences, there were 29.73% and 18.42% of clones identified as known isolates (i.e. B. proteoclasticus and Ps. ruminis) in control and GO groups, respectively. Further clones identified as B. fibrisolvens (5.41%) and R. flavefaciens (7.89%) were specifically found in control and GO groups, respectively. The majority of clones resembled Ps. ruminis (98% to 99% similarity), except for Lachnospiraceae bacteria (87% to 92% similarity) in the two libraries. The two clone libraries also appeared different in Shannon diversity index (control 2.47 and GO group 2.91). Our results indicated that the Butyrivibrio group bacteria had a complex community with considerable unknown species in the goat rumen.

Distribution of Microflora in Powdered Raw Grains and Vegetables and Improvement of Hygienic Quality by Gamma Irradiation (유통 생식제품의 미생물 분포 및 감마선 조사를 이용한 위생화)

  • Kim, Dong-Ho;Song, Hyun-Pa;Yook, Hong-Sun;Chung, Young-Jin;Kim, Yeung-Ji;Byun, Myung-Woo
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.31 no.4
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    • pp.589-593
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    • 2002
  • Improvement of hygienic quality of powdered raw grains and vegetables by gamma irradiation was investigated. Five products of powdered raw grains and vegetables were collected in a local market and analysed. The total viable cell counts of Bacillus were 10$^4$~10$^{7}$ cfu/g, filamentous fungi l0$^2$~10$^3$cfu/g, coliform 10$^1$~10$^4$cfu/g, enteric bacteria on SS agar plate 10$^1$~10$^3$cfu/g. Coliform, enteric bacteria on SS agar plate and filamentous fungi were eliminated by 3 kGy of gamma irradiation. The D values of coliform, enteric bacteria on SS agar plate, Bacillus, and filamentous fungi were 0.68~0.80 kGy, 0.59~0.74 kGy, 1.84~2.18 kGy and 0.36~0.57 kGy, respectively. It was considered that optimal irradiation dose for radappertization was about 25 kGy, while 3~5 kGy of gamma irradiation was effective for radicidation.

Culture and Identification of Bacteria from Marine Biofilms

  • Lee, Yoo-Kyung;Kwon, Kae-Kyung;Cho, Kyeung-Hee;Kim, Hyo-Won;Park, Jae-Hyun;Lee, Hong-Kum
    • Journal of Microbiology
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    • v.41 no.3
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    • pp.183-188
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    • 2003
  • We isolated and cultured bacteria that inhabited marine biofilms, and identified them by phylogenetic analysis using 16S rDNA sequences. In the marine environment, biofilms cover most subtidal and intertidal solid surfaces such as rocks, ships, loops, marine animals, and algae. The bacteria in most biofilms are embedded in extracellular polymeric substances that comprise mainly of exopolysaccharides. The exopolysaccharides are excreted from multiple bacterial species; therefore, biofilms are a good source for screening exopolysaccharide-producing bacteria. Thirty-one strains were cultured, and a total of 17 unique strains were identified. Phylogenetic analysis using 16S rDNA sequences indicated that the 17 strains belonged to ${\alpha}$-Proteobacteria (Ochrobactrum anthropi, Paracoccus carotinifaciens); ${\gamma}$-Proteobacteria (Pseudoalteromonas agarovorans, P. piscicida, Pseudomonas aeruginosa, Shewanella baltica, Vibrio parahaemolyticus, V. pomeroyi); CFB group bacteria (Cytophaga latercula, Tenacibaculum mesophilum); high GC, Gram-positive bacteria (Arthrobacter nicotianae, Brevibacterium casei, B. epidermidis, Tsukamurella inchonensis); and low GC, Gram-positive bacteria (Bacillus macroides, Staphylococcus haemolyticus, S. warneri).

Microbiological Characteristics and Cytoprotective Effects of Samjung-Hwan Fermented by Lactic Acid Bacteria (유산균을 이용한 발효삼정환의 미생물 특성 및 세포 보호 효과)

  • Chang, Seju;Wang, Jing-Hua;Shin, Na Rae;Kim, Hojun
    • Journal of Korean Medicine for Obesity Research
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    • v.16 no.1
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    • pp.11-18
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    • 2016
  • Objectives: To confirm microbiological change and cytoprotective effect of Samjung-hwan (SJH) which fermented by Lactic acid bacteria from natural fermented SJH. Methods: SJH was fermented by Lactobacillus brevis and Lactococcus lactis subsp. lactis from natural fermented SJH. After 1 week of fermentation, we analysed pH and microbial profiling. We also performed measuring total polyphenol total flavonoid contents and 1,1-Diphenyl-2-picryhydrazyl (DPPH) free radical scavenging activity to investigate antioxidant ability. Cell viability was performed by using HepG2 cell. Results: pH of lactic acid bacteria inoculated group and non-inoculated group was decreased and total counts of lactic acid bateria for both group was increased after fermentation of SJH. Total polyphenol and flavonoid contents and DPPH free radical scavenging activity was increased in both group. Total polyphenol contents of lactic acid bacteria Inoculated group is more increased than non-inoculated group. HepG2 cell viability was increased in both group. Conclusions: SJH fermentd by Lactobacillus brevis and Lactococcus lactis subsp. lactis shows change in microbiological character and has cytoprotective effect. Further studies are required for investigating function of lactic acid bacteria during fermentation of SJH.