title: Effect of synbiotics on intestinal microflora and digestive enzyme activities in rats.
abstract: OBJECTIVE
  To investigate the effect of synbiotics, i.e. probiotics and prebiotics mixture, on the gut microbial ecology and digestive enzyme activities in rats.
  
  
  METHODS
  Forty-eight SD rats weighing about 280 g were used in this study. Rats were divided into three groups according to the contents of probiotics and prebiotics mixture in the feed as control, low and high dose groups. The duration of the experiment was 8 wk.
  
  
  RESULTS
  Compared with the control group, the fecal Lactobacillus and Bifidobacterium counts were significantly increased and the fecal Coliform organism counts were markedly reduced in the low and high dose groups. Concerning the digestive enzyme activity of jejunum, only lactase activity increased in low dose group. However, significant increase of lipase, lactase, sucrase, and isomaltase activities were observed in high dose group.
  
  
  CONCLUSIONS
  Intake of low and high dosages of probiotics and prebiotics mixture significantly improved the ecosystem of the intestinal tract by increasing the probiotics population and digestive enzyme activities in rats.
authors.affiliation: School of Nutrition and Health Sciences, College of Public Health and Nutrition, Taipei Medical University, 250 Wu-Hsing Street, Taipei 110, Taiwan, China.
authors.forename: Suh-Ching
authors.initials: SC
authors.lastname: Yang
authors.forename: Ju-Yen
authors.initials: JY
authors.lastname: Chen
authors.forename: Huey-Fang
authors.initials: HF
authors.lastname: Shang
authors.forename: Ting-Ying
authors.initials: TY
authors.lastname: Cheng
authors.forename: Su Chen
authors.initials: SC
authors.lastname: Tsou
authors.forename: Jiun-Rong
authors.initials: JR
authors.lastname: Chen
mesh_terms: D000821:Animal Feed; D000818:Animals; D001644:Bifidobacterium; D007422:Intestines / Q000201:enzymology* / Q000382:microbiology*; D007778:Lactobacillus; D008297:Male; D019936:Probiotics / Q000494:pharmacology*; D051381:Rats; D017207:Rats, Sprague-Dawley