Inhibitory Activities of a Probiotic Bacterium (Bifidobacterium Pseudocatanulatum) on a Common Diarrheagrnic Pathogen (Salmonella Enterica) in Human

Sixteen strains of Salmonella were isolated from clinically diagnosed diarrhea patients. They were tested against a range of antimicrobial agents, and typed by serological test and RAPD fingerprinting. All the strains have the similar pattern of antimicrobial susceptibility. The serological test...

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Main Author:	Meor Hussin, Anis Shobirin
Format:	Thesis
Language:	English English
Published:	2003
Subjects:	Salmonella enteritidis Diarrhea
Online Access:	http://psasir.upm.edu.my/id/eprint/8505/1/FSMB_2003_9_A%20D.pdf
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id	my-upm-ir.8505
record_format	uketd_dc
spelling	my-upm-ir.85052022-01-26T00:23:16Z Inhibitory Activities of a Probiotic Bacterium (Bifidobacterium Pseudocatanulatum) on a Common Diarrheagrnic Pathogen (Salmonella Enterica) in Human 2003 Meor Hussin, Anis Shobirin Sixteen strains of Salmonella were isolated from clinically diagnosed diarrhea patients. They were tested against a range of antimicrobial agents, and typed by serological test and RAPD fingerprinting. All the strains have the similar pattern of antimicrobial susceptibility. The serological test has typed them into 3 serovars but the RAPD fingerprinting has classed them into 2 major clusters. Three strains of bifidobacteria were analyzed for their survival rate in human stomach condition. It showed that the ability of bifidobacteria to survive was strains dependant. Bifidobacterium pseudocatanulatum F117 and Bifidobacterium infantis can survive at pH value of human stomach after exposure for 90 minutes but not Bifidobacterium pseudocatanulatum G48. The survival of bifidobacteria was higher in the pH after meal compared to the pH before meal (fasted state). The dose effect study demonstrated, that the initial concentration of bifidobacteria would affect the duration of inhibitory activity against Salmonella. Lower initial concentration exhibit greater inhibitory activity. The inhibition of Salmonella was due to the production of acetate and lactate by bifidobacteria and the effectiveness was higher at low pH. Acetate and lactate production was excessive when the initial concentration of bifidobacteria was low due to the high growth rates, metabolism, and competition of energy sources. Salmonella enteritidis Diarrhea 2003 Thesis http://psasir.upm.edu.my/id/eprint/8505/ http://psasir.upm.edu.my/id/eprint/8505/1/FSMB_2003_9_A%20D.pdf text en public masters Universiti Putra Malaysia Salmonella enteritidis Diarrhea Food Science and Technology Abdul Manap, Mohd Yazid English
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English English
advisor	Abdul Manap, Mohd Yazid
topic	Salmonella enteritidis Diarrhea
spellingShingle	Salmonella enteritidis Diarrhea Meor Hussin, Anis Shobirin Inhibitory Activities of a Probiotic Bacterium (Bifidobacterium Pseudocatanulatum) on a Common Diarrheagrnic Pathogen (Salmonella Enterica) in Human
description	Sixteen strains of Salmonella were isolated from clinically diagnosed diarrhea patients. They were tested against a range of antimicrobial agents, and typed by serological test and RAPD fingerprinting. All the strains have the similar pattern of antimicrobial susceptibility. The serological test has typed them into 3 serovars but the RAPD fingerprinting has classed them into 2 major clusters. Three strains of bifidobacteria were analyzed for their survival rate in human stomach condition. It showed that the ability of bifidobacteria to survive was strains dependant. Bifidobacterium pseudocatanulatum F117 and Bifidobacterium infantis can survive at pH value of human stomach after exposure for 90 minutes but not Bifidobacterium pseudocatanulatum G48. The survival of bifidobacteria was higher in the pH after meal compared to the pH before meal (fasted state). The dose effect study demonstrated, that the initial concentration of bifidobacteria would affect the duration of inhibitory activity against Salmonella. Lower initial concentration exhibit greater inhibitory activity. The inhibition of Salmonella was due to the production of acetate and lactate by bifidobacteria and the effectiveness was higher at low pH. Acetate and lactate production was excessive when the initial concentration of bifidobacteria was low due to the high growth rates, metabolism, and competition of energy sources.
format	Thesis
qualification_level	Master's degree
author	Meor Hussin, Anis Shobirin
author_facet	Meor Hussin, Anis Shobirin
author_sort	Meor Hussin, Anis Shobirin
title	Inhibitory Activities of a Probiotic Bacterium (Bifidobacterium Pseudocatanulatum) on a Common Diarrheagrnic Pathogen (Salmonella Enterica) in Human
title_short	Inhibitory Activities of a Probiotic Bacterium (Bifidobacterium Pseudocatanulatum) on a Common Diarrheagrnic Pathogen (Salmonella Enterica) in Human
title_full	Inhibitory Activities of a Probiotic Bacterium (Bifidobacterium Pseudocatanulatum) on a Common Diarrheagrnic Pathogen (Salmonella Enterica) in Human
title_fullStr	Inhibitory Activities of a Probiotic Bacterium (Bifidobacterium Pseudocatanulatum) on a Common Diarrheagrnic Pathogen (Salmonella Enterica) in Human
title_full_unstemmed	Inhibitory Activities of a Probiotic Bacterium (Bifidobacterium Pseudocatanulatum) on a Common Diarrheagrnic Pathogen (Salmonella Enterica) in Human
title_sort	inhibitory activities of a probiotic bacterium (bifidobacterium pseudocatanulatum) on a common diarrheagrnic pathogen (salmonella enterica) in human
granting_institution	Universiti Putra Malaysia
granting_department	Food Science and Technology
publishDate	2003
url	http://psasir.upm.edu.my/id/eprint/8505/1/FSMB_2003_9_A%20D.pdf
_version_	1747810820766564352

Inhibitory Activities of a Probiotic Bacterium (Bifidobacterium Pseudocatanulatum) on a Common Diarrheagrnic Pathogen (Salmonella Enterica) in Human

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