alexa A Comparative Study of Some Functional Properties of Lactobacillus and Enterococcus Isolated from Feces of Normo and Hyper-Cholesterolemic Humans | OMICS International | Abstract
ISSN: 2155-9597

Journal of Bacteriology & Parasitology
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Research Article

A Comparative Study of Some Functional Properties of Lactobacillus and Enterococcus Isolated from Feces of Normo and Hyper-Cholesterolemic Humans

Adam Alfaki Mohammad Albadawi1*, Mohammad Eltayeb Ahmed1, Nawal Tagelsir Mohammad Osman2, Saddig Elowni3, Tayseer Elamin Mohammed Elfaki4,Asim Abdelrahman Daffalla5 and Mohammad Baha Eldin Saad6

1Department of Parasitology, National Public Health Laboratory (NPHL), Ministry of Health, Republic of Sudan

2Department of Molecular Biology, National Health Laboratory (NPHL), Republic of Sudan

3Department of Parasitology, Faculty of Medical Veterinary, Sudan University of Science & Technology, Republic of Sudan

4Department of Parasitology, Faculty of Medical Laboratory Science & Technology, Sudan University of Science & Technology, Republic of Sudan

5Department of Research, Faculty of Science, Abaha University Kingdom Saudi Arabia

6Department of Parasitology, Faculty of Medical Laboratory Science, Omdurman Ahlia University, Republic of Sudan

*Corresponding Author:
Adam Alfaki Mohammad Albadawi
Parasitology Department
National Public Health Laboratory
Ministry of Health, Republic of Sudan
Tel: 249122710595
E-mail: [email protected]

Received date: March 16, 2016; Accepted date: May 20, 2016; Published date: May 25, 2016

Citation: Albadawi AAM, Ahmed ME, Osman NTM, Elowni S, Elfaki TEM, et al. (2016) Field Investigation on Cystic Hydatid Infection in Man and Camel in Tambool Town and Khartoum State Hospitals, Sudan. J Bacteriol Parasitol 7:275. doi:10.4172/2155-9597.1000275

Copyright: © 2016 Albadawi AAM, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


There have been reports of an association between an imbalance of gastrointestinal microbiota and several kinds of diseases, mainly metabolic diseases. Lactobacillus and Enterococcus are two genera that form part of the native gastrointestinal microbiota. In this work, we isolated, identified and characterized 26 strains of Lactobacillus and 23 strains of Enterococcus from the feces of normo and hypercholesterolemic humans. We compared the behavior exhibited by all strains at acid pH and in presence of bile salts, their sensitivity to antibiotics, and their ability to hydrolyze bile salts and to reduce cholesterol in vitro. The highest percentage of all isolated and characterized Lactobacillus strains was from the normocolesterolemic group; in the hypercholesterolemic group, most strains belonged to the Enterococcus genus. The Lactobacillus strains showed greater capacity to reduce cholesterol levels; although this capacity has been related to bile salt hydrolase activity, four of the strains we isolated showed no such activity, but still reduced cholesterol. All strains of both genera isolated from normocholesterolemic participants showed a highest rate of cholesterol reduction than those isolated from hypercholesterolemic participants. Furthermore, the Lactobacillus strains showed greater resistance at pH 2.0, while strains of both genera showed similar survival rates at pH 3.0 and in the presence of bile salts after 24 h. These results support the evidence that a microbial imbalance involving the depletion of beneficial bacteria could be detrimental to the health of the host.


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