• 제목/요약/키워드: B. breve K-110

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Hypocholesterolemic Activity of Bifidobacteria Isolated from a Healthy Korean

  • Rhee, Young-Kyung;Han, Myung-Joo;Choi, Eung-Chil;Kim, Dong-Hyun
    • Archives of Pharmacal Research
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    • 제25권5호
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    • pp.681-684
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    • 2002
  • This study was undertaken to investigate the hypocholesterolemic activity of Bifidobacteria (B. breve K-110, B. breve K-111, and B. infantis K-525) isolated from a healthy Korean. The administration of B. breve K-110 and K-111 with a high cholesterol diet significantly protected the increase of serum total cholesterol and LDL cholesterol relative to that of a high cholesterol diet alone. Such a diet supplemented with 0.5% B. breve K-111 decreased serum total cholesterol and LDL cholesterol to 57 and 55%, respectively. The administration of Bifidobacteria also significantly inhibited the lipid-deposited surface in the aorta. The normalizing activity of serum cholesterol level in cholesterolemic rats was accelerated by Bifidobacteria. The normalizing activity of B. breve K-111 on serum cholesterol level was superior to that of B. breve K-110. These results suggest that Bifidobacteria in the human intestine playa role in the prophylactics of arteriosclerosis.

랫트에서 한국형유산균인 Bifidobacterium breve K-110, K-111 및 infantis K-525 균주제제의 경구투여 급성독성 (Acute Oral Toxicity of Bifidobacterium breve K-110 K-111 and B. infantis K-525 Isolated from Korean Intestine in Rats)

  • 이영경;한명주;최응칠;김동현
    • Biomolecules & Therapeutics
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    • 제6권4호
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    • pp.412-416
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    • 1998
  • Acute oral toxicity of Bifidobacterium breve K-110, Bifidobacterium breve K-111, Bifidobacterium infantis K-525 were studied in Sprague-Dawley rats of both sexes. In this study, we examined number of deaths, clinical signs, bod weight and gross findings for 14 day after single oral administration of B. breve K-110,B. breve K-111 or B. infantis K-525 with different levels. They did not show any toxic effect in rats and oral LD$_{50}$ value was over 5 g/kg in rats.s.

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Purification and Characterization of ${\beta}$-Xylosidase from Bifidobacterium breve K-110

  • Shin, Ho-Young;Han, Yeo-Ok;Han, Myung-Joo;Lee, Jang-Yeon;Lee, Ji-Hyun;Kim, Dong-Hyun
    • 대한약학회:학술대회논문집
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    • 대한약학회 2002년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.2
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    • pp.333.2-333.2
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    • 2002
  • Kakkalide from Puerariae Flos expresses pharmacological actions after biotransformation to irisolidone by intestinal bacteria. B. breve K-110 was isolated as a bacterium metabolizing kakkalide. Therefore. we purified kakkalide-metabolizing p-Xylosidase from B. breve K-110. ${\beta}$-Xylosidase from B. breve K-110 (isolated from Korean intestinal microflora) was induced by kakkalide. We used defined medium contating 1mM kakkalide for the cultivationof B. breve K-110. (omitted)

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한국형유산균인 Bifidobacterium breve K-110, K-111 및 B. infantis K-525 균주의 완하, 항사하 및 항돌연변이효과 (Antidiarrheal, Anticostive and Antimutagenic Effects of Bifidobacterium breve K-110, K-111 and B. infantis K-525 from Korean in Experimental Animals)

  • 이영경;김동현;한명주
    • 한국식품과학회지
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    • 제31권2호
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    • pp.547-552
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    • 1999
  • 저자 등이 건강한 한국사람으로부터 장내유해효소를 억제할 수 있은 장내환경개선효과가 우수한 한국형 유산균을 분리하여 소장수송능 효과, castor oil을 이용한 설사모델 동물에서 지사효과 및 항돌연변이 효과를 측정한 결과 소장의 수송능에는 아무런 영향을 미치지 못했으나 대장의 소송능은 현저한 수송능 촉진효과를 나타냈으며 특히 Bifidobacterium breve K-110의 균주가 우수하였다. Castor oil로 유도된 설사에 대한 지사 효과는 대부분의 균주에서 억제효과가 인정되지 않았으나, K-111의 균주는 유의한 지사효과를 나타냈다. 아울러 유산균은 항돌연변이 효과는 Bifidobacterium breve K-100 균주가 가장 우수한 효과를 나타내었으며 이러한 효과는 유산균의 세포벽 성분이 peptidoglycan에 의한 효과였다. 이러한 결과들로 볼 때 한국형유산균은 장내세균이 생산하는 유해효소의 생산성을 억제하는 것외에도 설사와 변비를 개선할 수 있으며 발암물질에 의한 항돌연변이 효과을 통해서 장내환경개선 효과를 기대할 수 있을 것으로 생각된다.

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Protective Effects of Bifidobacterium spp. on Experimental Colon Carcinogenesis with 1,2-Dimethylhydrazine

  • HAN, MYUNG JOO;HAE-YOUNG PARK;DONG-HYUN KIM
    • Journal of Microbiology and Biotechnology
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    • 제9권3호
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    • pp.368-370
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    • 1999
  • The protective role of Bifidobacterium spp. (B. breve K-110, B. breve K-111, and B. infantis K-525) isolated from the fecal samples of healthy Koreans was investigated on 1,2-dimethylhydrazine (DMH)-induced aberrant crypt foci(ACF) formation in mouse colon. In mice fed normal diet with DMH treatment, an average of 68.5 ACF/colon was formed, whereas in mice administered with B. breve K-110, B. breve K-111, and B. infantis K-525, the numbers of DMH-induced ACF decreased to 7.2, 10.9, and 6.6 ACF/ colon, respectively. The mean number of crypts/focus was not significantly altered. Fecal harmful enzymes, such as β-glucuronidase, tryptophanase, and urease, were effectively inhibited during the administration of these bifidobacteria to mice. These results suggest that bifidobacteria could prevent colon cancer.

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Bifidobacterium breve K-110, K-111 및 B. infantis K-525 균주의 사염화탄소 유발 간독성 보호 효과 (The Protective Effect of Bifidobacterium breve K-110, K-111 and B. infantis K-525 on Carbon Tetrachloride-induced Hepatotoxicity in Rats)

  • 박혜영;한명주;최응칠;김동현
    • 한국식품과학회지
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    • 제31권4호
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    • pp.1096-1100
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    • 1999
  • The protective effect of Bifidobacterium breve K-110, K-111 and B. infantis K-525 on carbon tetrachloride induced hepatotoxicity in rats was investigated. Among them, B. infantis K-525 had the most potent hepatoprotective activity. It reduced serum aspartate aminotransferase and alanine aminotransferase levels to 51% and 80% of the $CCl_{4}-treated$ groups, respectively. In rat liver homogenate intoxificated with $CCl_{4}$, B. infantis K-525 inhibited in vitro as well as in vivo lipid peroxidation more than the other Bifidobacteria.

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한국형 유산균 Bifidobacterium 속 균주의 항생물질에 대한 감수성 (Antibiotic Susceptibility of Bifidobacterium spp. Strains Isolated from Healthy Korean)

  • 장현아;최금화;오태권;권애란;김동현;최응칠
    • 약학회지
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    • 제42권6호
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    • pp.639-641
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    • 1998
  • Minimal inhibitory concentrations (MICs) of Bifidobacterium spp. strains (Bifidobacterium breve K-110, B. breve K-111 and B. infantis K-525) isolated from healthy Korean against antituberculosis agents and fluoroquinolones were determined. From the MICs it was found that Bifidobacterium breve K-110, B. breve K-111 and B. infantis K-525 were susceptible to rifampicin and fluoroquinolenes and resistant to other antituberculosis agents.

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Inhibitory Effects of Bifidobacterium spp. Isolated from a Healthy Korean on Harmful Enzymes of Human Intestinal Microflora

  • Park, Hye-Young;Bae, Eun-Ah;Han, Myung-Joo;Choi, Eung-Chil;Kim, Dong-Hyun
    • Archives of Pharmacal Research
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    • 제21권1호
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    • pp.54-61
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    • 1998
  • Five hundreds of bifidobacteria were isolated from a healthy Korean and the inhibitory effects of these isloated bacteria on harmful enzymes of human intestinal microflora were examined by cocultivation of the isolated bifidobacteria with E. coli or total human intestinal microflora. In comparison with the results of E. coli or intestinal microflora cultivation, Bifidobacterium breve K-110, B. breve K-111 and B. infantis K-525 effectively inhibited harmful enzymes ($\beta$-glucuronidase and tryptophanase) of E. coli and lowered the pH of the culture media. Also they inhibited the harmful enzymes ($\beta$-glucosidase, $\beta$-glucuronidase, tryptophanase and urease) and ammonia production of intestinal microflora, and lowered pH of the culture media by increasing lactic acid bacteria of intestinal microflora. When these isolated bifidobacteria were administered on mice, fecal harmful enzymes were also inhibited. Among tested bifidobacteria, B. breve K-110 had the highest inhibitory effect of fecal harmful enzymes.

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유산균의 장내환경개선효과 (Isolation of bifidobacteria inhibiting harmful enzymes of Korean intestinal bacteria)

  • 김동현;송미정;김숙희;박혜영;이영경;배은아;한명주
    • 한국축산식품학회:학술대회논문집
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    • 한국축산식품학회 1998년도 추계학술발표회
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    • pp.41-57
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    • 1998
  • Five hundreds of bifidobacteria were isolated from an healthy Korean and the inhibitory effects of these isolated bacteria on harmful enzymes of human intestinal microflora were examined by cocultivation of the isolated bifidobacteria with E. coli HGU-3 or total human intestinal microflora. In comparison with the results of E. coli or intestinal microflora cultivation, Bifidobacterium breave K-110, B. breve K-111 and B. infantis K-525 effectively inhibited harmful enzymes (${\beta}-glucuronidase$ and tryptophanase) of E. coli and lowered the pH of the culture media. Also they inhibited the harmful enzymes (${\beta}-glucosidase$, ${\beta}-glucuronidase$, tryptophanase and urease) and ammonia production of intestinal microflora, and lowered pH of the culture media by increasing the number of bifidobateria on intestinal microflora. The inhibitory effect of bifidobacteria on Growth of Helicobacter pylori and Rotavirus infection were exammed. Bifidobacterium K-110 and K-111 inhibited effectively them. When these isolated bifidobacteria were administered to mice, the activities of fecal harmful enzymes were inhibited and the AC and ACF formation were suppressed. Among tested bifidobacteria, B. breve K-110 had high inhibitory effect of fecal harmful enzymes and ACF formation.

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근채류의 기호도와 장내세균의 유해효소 억제효과 (The Preference and Inhibitory Effect of Root Vegetables on β-Glucuronidase and Tryptophanase of Human Intestinal Bacteria)

  • 한명주;김나영
    • 한국식품조리과학회지
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    • 제15권6호
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    • pp.555-564
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    • 1999
  • 식이섬유를 함유한 근채류의 기호도를 조사하고 장내유산균 증식효과와 장내유해균이 생산하는 ${\beta}$-glucuronidase와 tryptophanase 저해효과를 측정한 결과는 다음과 같다. 1. 조사대상자가 가장 선호하는 근채류는 고구마(4.05)였으며 남자의 선호도는 감자(3.88), 고구마(3.68), 더덕(3.77), 무(3.59), 양파(3.56)의 순으로 나타났으며 여자는 고구마(4.17), 감자(4.03), 양파(3.76), 무(3.61), 더덕(3.55)의 순으로 나타났다. 2. 여자가 남자보다 '근채류가 건강에 좋다'고 인식하고 있었으며 건강에 좋다고 생각하는 근채류는 남자의 경우 마늘 26.4%, 당근 16.7%, 감자 15.3%, 더덕 12.5%의 순으로 나타났고 여자의 경우 마늘 26.7%, 더덕 17.3%, 감자 13.9%, 당근 10.4%의 순으로 나타났다. 3. 근채류 추출물 0.5%를 첨가한 배지에서 장내유익균인 B. breve K-110의 증식효과는 감자(139%), 더덕(145%), 마(164%), 토란(144%), 연근(147%)에서 높았다. 장내유익균(B. breve K-110)과 유해균(E. coli HGU-3와 Bacteroides JY-6)을 혼합배양시 근채류 추출물 0.5% 첨가한 배지에서 장내유해균이 생산하는 유해효소인 ${\beta}$-glucuronidase와 tryptophanase 활성저해 효과는 감자, 더덕, 마, 토란에서 높게 나타났다. 감자, 더덕, 마, 토란추출물을 0.5% 첨가한 배지에 사람의 장내세균총을 배양하였을 때 이들 유해효소의 활성은 50%이상의 억제효과가 나타났다. 4. Sephadex G-100 column chromatography에 의하여 분리한 감자, 마, 더덕, 토란추출물의 고분자 분획에서 장내유익균인 B. breve K-110의 증식효과와 ${\beta}$-glucuronidase와 tryptophanase 활성저해 효과가 높게 나타났다. 5. 분리한 고분자 분획의 ninhydrin 발색반응은 감자, 마, 더덕, 토란에서 음성을 나타내어 아미노산이 아닌 것을 확인하였고 요오드반응은 마, 더덕, 토란에서 음성을 나타내었고 감자에서는 양성을 나타내었다. 이상과 같은 결과에 의하면 근채류중 감자, 마, 더덕, 토란이 유산균을 효과적으로 증식시켜 장내 pH를 저하시킴에 의해 ${\beta}$-glucuronidase, tryptophanase와 같은 장내의 유해효소를 억제할 것이라고 기대되어진다. 그러므로 이들 근채류는 장내의 유해효소에 의해 발생하는 대장암등의 질병예방과 장내균총의 불균형에 의해 야기될 수 있는 설사와 변비같은 질병의 예방에도 효과를 나타낼 것으로 생각된다.

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