Table of Contents Author Guidelines Submit a Manuscript
BioMed Research International
Volume 2013, Article ID 583850, 9 pages
Research Article

In Vitro and In Vivo Survival and Colonic Adhesion of Pediococcus acidilactici MTCC5101 in Human Gut

Department of Biotechnology, Punjabi University, Punjab, Patiala 147 002, India

Received 30 April 2013; Revised 13 August 2013; Accepted 14 August 2013

Academic Editor: Xiaoling Miao

Copyright © 2013 Praveen P. Balgir et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The present study aims to investigate the probiotic nature of Pediococcus acidilactici MTCC5101 by an in vitro assay of bacterial adherence to intestinal epithelial cells of human gastrointestinal (GI) tract using Caco-2 cell line. Further to assess the in vivo survival in the GI tract, oral feeding was carried out with the help of 10 healthy volunteers. The effect on wellness was assessed by studying blood biochemical parameters of the volunteers. The survival of the bacteria was assessed using PCR-based detection of P. acidilactici MTCC5101 in fecal samples. The probiotic nature of P. acidilactici MTCC 5101 was strengthened by its adherence to the intestinal epithelial Caco-2 cell line in the in vitro SEM observations. Oral feeding study for assessing the survival of bacteria in GI tract of volunteers showed the strain to be established in the GI tract which survived for about 2 weeks after feeding.