title: [Contrasting study of erythritol and xylitol on Streptococcus mutans].
abstract: OBJECTIVE
  To study the inhibitory effect of erythritol by contrast to xylitol on growth and acid production of Streptococcus mutans (S. mutans).
  
  
  METHODS
  S. mutans were incubated respectively in 0.5%, 1%, 2%, 4%, 8%, 12%, 16% erythritol or xylitol culture medium under anaerobic conditions. The A and pH value of the mediums were measured at 0, 2, 4, 6, 8, 10, 12, 18, 24 hours, following the profile plots by SPSS.
  
  
  RESULTS
  The data of A were higher in 0.5%, 1%, 2% erythritol culture medium than in xylitol culture medium at the same concentration, while lower in 8%, 12%, 16% erythritol culture medium than in xylitol culture medium at the same concentration. The data of pH were lower in 0.5%, 1%, 2% erythritol culture medium than in xylitol culture medium at the same concentration, while higer in 8%, 12%, 16% erythritol culture medium than in xylitol culture medium at the same concentration. It indicated that the growth and acid production of S. mutans were higer in 0.5%, 1%, 2% erythritol culture medium than in xylitol culture medium at the same concentration, while lower in 8%, 12%, 16% erythritol culture medium than in xylitol culture medium at the same concentration.
  
  
  CONCLUSIONS
  Compared with xylitol, erythritol in low concentration has weaker effort on the growth and acid production of S. mutans, while having stronger effort in high concentration.
authors.affiliation: Dept. of Pediatric Dentistry, Stomatology Hospital Affiliated Fujian Medical University, Fuzhou 350002, China.
authors.forename: Jun
authors.initials: J
authors.lastname: Yao
authors.forename: Jia-Li
authors.initials: JL
authors.lastname: Zhang
authors.forename: Yu-Qiong
authors.initials: YQ
authors.lastname: Wu
authors.forename: Zhao-Jie
authors.initials: ZJ
authors.lastname: Lu
mesh_terms: D003470:Culture Media; D004896:Erythritol; D013295:Streptococcus mutans; D014993:Xylitol
chemical_list: D003470:Culture Media; D004896:Erythritol; D014993:Xylitol