Àá½Ã¸¸ ±â´Ù·Á ÁÖ¼¼¿ä. ·ÎµùÁßÀÔ´Ï´Ù.

StreptococcusÀÇ À¯´çºÐÇØ¿¡ ´ëÇÑ ÀÚÀϸ®ÅçÀÇ È¿°ú

THE EFFECT OF XYLITOL ON THE LACTOSE FERMENTATION OF STREPTOCOCCUS

´ëÇѼҾÆÄ¡°úÇÐȸÁö 2004³â 31±Ç 2È£ p.202 ~ 211
½Å°­È£, ¹Ú¿õ¼·, ¿ÀÁ¾¼®, ±â¿ìõ, ±è¼±Çå,
¼Ò¼Ó »ó¼¼Á¤º¸
½Å°­È£ (  ) - Àü³²´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç
¹Ú¿õ¼· (  ) - ±¤ÁÖº¸°Ç´ëÇÐ Ä¡À§»ý°ú
¿ÀÁ¾¼® (  ) - Àü³²´ëÇб³ ÀÇ°ú´ëÇÐ ¹Ì»ý¹°Çб³½Ç
±â¿ìõ (  ) - Àü³²´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç
±è¼±Çå (  ) - Àü³²´ëÇб³ Ä¡°ú´ëÇÐ ¼Ò¾ÆÄ¡°úÇб³½Ç

Abstract

ÀÚÀϸ®ÅçÀº ź¼Ò 5°³°¡ Àִ ź¼öÈ­¹°·Î Ä¡¾Æ¿ì½ÄÁõÀ» ¾ïÁ¦ÇÒ ¸ñÀûÀ¸·Î »ç¿ëµÇ´Â ÀÚ´ç ´ëü¹°ÀÌ´Ù. º» ³í¹®Àº ±¸°­ Áß¿ä ¼¼±ÕÀÎ Streptococcus mutans, Streptococcus oralis, Streptococcus salvarius¿¡¼­ À¯´çºÐÇØ¿¡ ´ëÇÑ ÀÚÀϸ®ÅçÀÇ ÀÛ¿ëÀ» °üÂûÇÏ°íÀÚ ÇÏ¿´´Ù. ¼¼±Õ¿¡ ´ëÇÑ À¯´ç°ú ÀÚÀϸ®ÅçÀÇ º´ÇÕÈ¿°ú¸¦ º¸±â À§ÇÏ¿© ºÐ±¤±¤µµ°è¸¦ ÀÌ¿ëÇÑ Èí±¤µµ¸¦ ÃøÁ¤ÇÏ¿´°í »ý±Õ¼ö °Ë»ç¸¦ ½Ç½ÃÇÏ¿´´Ù. Streptococcus mutans ¶Ç´Â ¥â-galactosidase¿¡ ÀÇÇÑ À¯´çºÐÇØ¿¡ ´ëÇÑ ÀÚÀϸ®Åç È¿°ú¸¦ º¸±â À§ÇÏ¿© thin layer chromatography¿Í lactose-PTS activity test¸¦ ½Ç½ÃÇÏ¿© ´ÙÀ½°ú °°Àº °á°ú¸¦ ¾ò¾ú´Ù.
1. À¯´ç°ú ÀÚÀϸ®ÅçÀ» º´ÇÕ Ã·°¡ÇÑ ¹èÁö¿¡ Streptococcus mutans¸¦ ¹è¾çÇÏ¸é ¹è¾ç¾× Èí±¤µµ°¡ ¹è¾ç 8½Ã°£¿¡ Áõ°¡ÇÏÁö ¾Ê´Ù°¡ ¹è¾ç 24½Ã°£¿¡ Áõ°¡ÇÏ¿´´Ù. ¹è¾ç 8½Ã°£¿¡¼­ÀÇ »ý±Õ¼öµµ À¯´ç ´Üµ¶º¸´Ù À¯´ç°ú ÀÚÀϸ®Åç º´ÇÕ Ã·°¡ ½Ã Àû°Ô ³ªÅ¸³µ´Ù.
2. À¯´ç°ú ÀÚÀϸ®ÅçÀ» º´ÇÕ Ã·°¡ÇÑ ¹èÁö¿¡ Streptococcus oralis¿Í Streptococcus salivarius¸¦ ¹è¾çÇÏ¸é ¹è¾ç¾× Èí±¤µµ°¡ ¹è¾ç 8½Ã°£¿¡ Áõ°¡ÇÏÁö ¾Ê´Ù°¡ ¹è¾ç 24½Ã°£¿¡ Áõ°¡ÇÏ¿´´Ù.
3. ¹èÁö¿¡ À¯´ç ´Üµ¶À¸·Î ÷°¡ÇÒ ¶§º¸´Ùµµ À¯´ç°ú ÀÚÀϸ®ÅçÀ» º´ÇÕ Ã·°¡ÇÑ ¹èÁö¿¡ Streptococcus mutans¸¦ 8½Ã°£ ¹è¾çÇϸé thia-layer chromatography»ó ³²ÀÖ´Â À¯´çÀÌ ¸¹¾ÒÀ¸³ª, ¹è¾ç 24½Ã°£¿¡´Â ¸ðµç À¯´çÀÌ ºÐÇصǾú´Ù.
4. ¹èÁö¿¡ À¯´ç ´Üµ¶À¸·Î ÷°¡ÇÒ ¶§º¸´Ùµµ À¯´ç°ú ÀÚÀϸ®ÅçÀ» º´ÇÕ Ã·°¡ÇÑ ¹èÁö¿¡¼­ Streptococcus mutansÀÇ lactose PTS È°¼ºµµ°¡ ³·¾Ò´Ù.
5. ¹èÁö¿¡ À¯´ç ´Üµ¶À¸·Î ÷°¡ÇÒ ¶§º¸´Ùµµ À¯´ç°ú ÀÚÀϸ®ÅçÀ» º´ÇÕ Ã·°¡ÇÑ ¹èÁö¿¡ ¥â-galactosidase ÀÛ¿ë½Ã thin-layer chromatography»ó À¯´çÀÌ ¸¹¾Ò´Ù.
ÀÌ»óÀÇ °á°ú´Â ÀÚÀϸ®ÅçÀÌ StreptococcusÀÇ À¯´ç ÀÌ¿ëÀ» ¾ïÁ¦ÇÔÀ» ½Ã»çÇÏ¿´´Ù.
Xylitol is a 5-carbons carbohydrate, which can be replaced with sucrose for preventing dental caries. To study the effect of xylitol on the fermentation of lactose in bacteria, the important oral bacteria such as Streptococcus(S.) mutans, S. oralis and S. salivarius were studied. The optical density using spectophotometer and the cell concentration were assessed to evaluate the combined effect of lactose and xylitol against the bacte¡þria. Thin layer chromatography and lactose =PTS activity test were performed to evaluate the effect of xylitol on the fermentation of lactose in S. mutans and by (9-galactosidase with the following results.
1. The optical density of Streptococcus mutans culture was not increased for 8 hours-incubation in the media added with lactose and xylitol, but was increased at 24 hours-incubation. The number of viable cells at 8 hours-incubation was smaller in the media containing lactose and xylitol in comparison with lactose only.
2. The optical densities of Streptococcus oralis culture and Streptococcus salivarius culture were not increased for 8 hours-incubation in the media added with lactose and xylitol, but were increased at 24 hours-incuba¡þtion.
3. When Streptococcus mutans was incubated for 8 hours in the media added with lactose and xylitol, the amount of remained lactose was larger compared with the media added with lactose only. But all lactose was fermented in both media after 24 hours-incubation.
4. When Streptococcus mutans was incubated in the media added with lactose and xylitol, the activity of lac¡þtose-PTS was higher compared with the media added with lactose only.
5. When fl-galactosidase was incubated in the media added with lactose and xylitol, the amount of remained lactose was larger compared with the media added with lactose only.
These results indicated that xylitol inhibited the fermentation of lactose by Streptococcus.

Å°¿öµå

Streptococcus;ÀÚÀϸ®Åç;À¯´çºÐÇØ;Streptococcus;Xylitol;Lactose fermentation

¿ø¹® ¹× ¸µÅ©¾Æ¿ô Á¤º¸

 

µîÀçÀú³Î Á¤º¸

KCI