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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국미생물생명공학회 Journal of Microbiology and Biotechnology Journal of Microbiology and Biotechnology 제26권 제11호
- 발행연도
- 2016.1
- 수록면
- 1,829 - 1,835 (7page)
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초록· 키워드
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Dental caries is caused by cariogenic biofilm, an oral biofilm including Streptococcus mutans. Recently, the prevention of dental caries using various probiotics has been attempted. Lactococcus lactis HY 449 is a probiotic bacterium. The aim of this study was to investigate the effect of L. lactis HY 449 on cariogenic biofilm and to analyze its inhibitory mechanisms.
Cariogenic biofilm was formed in the presence or absence of L. lactis HY 449 and L. lactis ATCC 19435, and analyzed with a confocal laser microscope. The formation of cariogenic biofilm was reduced in cultures spiked with both L. lactis strains, and L. lactis HY 449 exhibited more inhibitory effects than L. lactis ATCC 19435. In order to analyze and to compare the inhibitory mechanisms, the antibacterial activity of the spent culture medium from both L. lactis strains against S. mutans was investigated, and the expression of glucosyltransferases (gtfs) of S. mutans was then analyzed by real-time RT-PCR. In addition, the sucrose fermentation ability of both L. lactis strains was examined. Both L. lactis strains showed antibacterial activity and inhibited the expression of gtfs, a nd t he d ifference b etween both strains did not show. In the case of sucrose-fermenting ability, L. lactis HY 449 fermented sucrose but L. lactis ATCC 19435 did not. L. lactis HY 449 inhibited the uptake of sucrose and the gtfs expression of S. mutans, whereby the development of cariogenic biofilm may be inhibited. In conclusion, L. lactis HY 449 may be a useful probiotic for the prevention of dental caries.
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참고문헌 (24)
참고문헌 신청
Ali D / 1995 / Characterization of diacetin B, a bacteriocin from Lactococcus lactis subsp. lactis bv. diacetylactis UL7 20 / Can. J. Microbiol 41 : 832 ~ 841
Caglar E / 2005 / Effect of yogurt with Bifidobacterium DN-17 3010 on salivary mutans streptococci and lactobacilli in young adults / Acta Odontol. Scand 63 : 317 ~ 320
Gill H / 2008 / Probiotics, immunomodulation, and health benefits / Adv. Exp. Med. Biol 606 : 423 ~ 454
Harvey RJ / 1965 / Damage to Streptococcus lactis resulting from growth at low pH / J. Bacteriol 90 : 1330 ~ 1336
Karpinski TM / 2013 / Characteristic of bacteriocines and their application / Pol. J. Microbiol 62 : 223 ~ 235
Caglar E / 2005 / Effect of yogurt with Bifidobacterium DN-17 3010 on salivary mutans streptococci and lactobacilli in young adults / Acta Odontol. Scand 63 : 317 ~ 320
Gill H / 2008 / Probiotics, immunomodulation, and health benefits / Adv. Exp. Med. Biol 606 : 423 ~ 454
Harvey RJ / 1965 / Damage to Streptococcus lactis resulting from growth at low pH / J. Bacteriol 90 : 1330 ~ 1336
Karpinski TM / 2013 / Characteristic of bacteriocines and their application / Pol. J. Microbiol 62 : 223 ~ 235
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