THE EFFECT OF XYLITOL AND CARBOHYDRATES ON THE REPLICATION OF STREPTOCOCCUS ORALS AND STREPTOCOCCUS SALIVARIUS

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Journal of the Korean Academy of Pediatric Dentistry 2003;30(4):722-727.
Published online November 30, 2003.

THE EFFECT OF XYLITOL AND CARBOHYDRATES ON THE REPLICATION OF STREPTOCOCCUS ORALS AND STREPTOCOCCUS SALIVARIUS

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자일리톨과 탄수화물이 Streptococcus oralis와 Streptococcus salivarius의 증식에 미치는 영향

양규호¹, 한수지²

¹전남대학교 치과대학 소아치과학교실 및 치의학연구소
²피츠버그대학교 약학대학 약학과 약물유전학 센터

Correspondence: ,

Abstract

Xylitol is a 5-carbons carbohydrate, which can be replaced with sucrose for preventing caries. The effect of carbohydrates and their combinations with xylitol was studied for the replication of oral bacteria such as Streptococcus oralis and Streptococcus salivarius. The replication of Streptococcus oralis and Streptococcus salivarius was inhibited according to the increased concentration of xylitol. When Streptococcus oralis was incubated for 8 hours in the media added with lactose or sucrose, the optical density was 0.915 and 1.107, repectively. while being 0.127 and 0.104, respectively in the media combined with xylitol. When Streptococcus salivarius was incubated for 8 hours in the media added with lactose or fructose, the optical density was 1.550 and 0.420, repectively. while being 0.271 and 0.905, respectively in the media combined with xylitol. These results indicated that the replication of Streptococcus oralis and Streptococcus salivarius was changed according to kinds of carbohydrates and combined addition of xylitol.

Key Words: Streptococcus oralis, Streptococcus salivarius, Xylitol, Carbohydrate