The immune enhancing effects and characteristics of Bifidobacterium longum and Bifidobacterium breve for the probiotic use in humans and animals

서지정보

ㆍ발행기관 : 충북대학교 동물의학연구소 ㆍ수록지정보 : Journal of Biomedical and Translational Research / 19권 / 4호
ㆍ저자명 : Ho-Eun Park, Hyun-Bum Um, Wan-Kyu Lee

목차

Introduction
Materials and Methods
공시 유산균
내산성 및 내담즙성 검사
내열성 검사
병원균 억제능 검사
Heat-killed 유산균 준비
세포배양
NO 측정
NF-κB 측정
Cytokine 측정
통계분석 및 유의성 검정
Results
내산성 및 내담즙성 결과
내열성 확인 결과
병원균 억제능
NO 및 NF-Κb 활성 확인
Cytokine 생성능 확인
Discussion
References

영어 초록

The purpose of this study was to investigate probiotic characteristics and immune enhancing effects of Bifidobacterium (B.) longum KBB1-26 and BIF-4, B. breve KBB5-22 isolated from human intestine for probiotic use in humans and animals. We measured acid, bile and heat tolerance, antimicrobial activity against pathogenic bacteria, Escherichia (E.) coli, Salmonella (S.) Enteritidis, Staphylococcus (S.) aureus, and Listeria (L.) monocytogenes. Immune enhancing effects of B. longum and B. breve were investigated by measuring nitric oxide (NO), nuclear factor (NF–κb), interleukin-1ß (IL-1ß), interleukin-6 (IL-6), interleukin-12 (IL-12) and tumor necrosis factor- α (TNF- α) in RAW 264.7 cells or RAW BLUE cells. B. longum KBB1-26 was survived at pH 2.0. B. longum KBB1-26 and BIF-4, B. breve KBB5-22 also showed tolerance to 0.3% of oxgall bile salt. B. longum KBB1-26 was able to survive at 70 ℃ and 80 ℃ for 20 min. KBB1-26 showed the antimicrobial inhibition zone to pathogenic bacteria such as E. coli (12 mm), S. Enteritidis (14 mm), S. aureus (14 mm) and L. monocytogenes (41 mm). The production of NO (4.5 ± 0.00μM/mL) and IL-1β (39.7 ± 0.55pg/mL) of KBB1-26 significantly higher than BIF-4 and KBB5-22, respectively. In addition, KBB1-26 and KBB5-22 induce the production of high level of TNF-α and IL-6 in macrophages. Collectively, B. longum KBB1-26 have acid, bile, heat tolerance, antimicrobial activity and immune enhancing effects. These results suggest that KBB1-26 can be used as probiotics for humans and animals.

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