The aims of this work were isolate and identify some probiotic strains from human origin, study some characteristics of the identified strains and study the ability of some probiotic LAB to improve the human health. Results revealed: The identified strains using SDS-PAGE technique and API System were: 1 Lb.salivarius, 2 Lb.fermentum, 7 Lb.plantarum, 27 Lb.acidophilus, 1 Lb.brevis, 3 Lb.pentosus, 3 Lb.paracasei ssp.paracasei, 7 E.faecalis, 5 E.faecium, 2 E.durans and 1 Aerococcus viridans. Most of the identified strains were tolerant to the change in pH.32 strains were tolerant to bile salts. Twenty eight strains showed antimicrobial activity against pathogenic E.coli. Ninety-nine strains were tested for their ability to adhere, tested microorganisms exhibited a statistically significant (P<0.05) differentiating adhesion characteristic. 21 strains showed strong adhesion performed In vitro. The effect of 4 probiotic on E. coli was determined In vivo. Administration of E. coli produced adverse clinical signs, whereas administration of probiotic strains enhanced the immune system functions and increased the body weight gain rates in treated groups.
The aims of this work were isolate and identify some probiotic strains from human origin, study some characteristics of the identified strains and study the ability of some probiotic LAB to improve the human health. Results revealed: The identified strains using SDS-PAGE technique and API System were: 1 Lb.salivarius, 2 Lb.fermentum, 7 Lb.plantarum, 27 Lb.acidophilus, 1 Lb.brevis, 3 Lb.pentosus, 3 Lb.paracasei ssp.paracasei, 7 E.faecalis, 5 E.faecium, 2 E.durans and 1 Aerococcus viridans. Most of the identified strains were tolerant to the change in pH.32 strains were tolerant to bile salts. Twenty eight strains showed antimicrobial activity against pathogenic E.coli. Ninety-nine strains were tested for their ability to adhere, tested microorganisms exhibited a statistically significant (P<0.05) differentiating adhesion characteristic. 21 strains showed strong adhesion performed In vitro. The effect of 4 probiotic on E. coli was determined In vivo. Administration of E. coli produced adverse clinical signs, whereas administration of probiotic strains enhanced the immune system functions and increased the body weight gain rates in treated groups.
The Lactic Acid Bacteria is planned as a series in a number of volumes, and the interest shown in it appears to justify a cautious optimism that a series comprising at least five volumes will appear...
Lactic acid bacteria (LAB) have historically been used as starter cultures for the production of fermented foods, especially dairy products. Over recent years, new areas have had a strong impact on...
This volume, the first in a series on the lactic acid bacteria, offers a series of reviews by carefully selected experts drawn from several countries. Although there have been a number of excellent...
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