Abstract:
Generally, fresh milk is taken as raw product with or without proper preservation.
Fresh milk is subjected to bacterial contamination irrespective of its source
and can cause health problems if consumed as fresh product. Camel is one of
the favorite animals in the Middle East Countries. Studies on isolating active
LAB from camel’s milk in Saudi Arabia are scarce. The main objective of
this study was to isolate potential probiotic Lactic Acid Bacteria (LAB). Phenotypic
characteristics were determined by phenotypical and biochemical tests, carbohydrate
assimilation by using API 50CH strips and API 50 CHL medium and probiotic activity
of isolates was determined by tolerating bile salts. The Cell Free Supernatants
(CFS) were sensitive to proteolytic enzymes indicating the proteinaceous nature
(i.e., bacteriocins) of inhibitors. There was no significant difference (p>0.05)
in weight gain among control and treated mice. The counts (log10
CFU mL-1) of test isolates were not significantly (p>0.05) affected
by bile slats in MRS broth. In conclusion, LAB isolates proved useful and can
exhibit probiotic activities in albino mice which are able to prevent the adhesion
of Staphylococcus aureus and to inhibit the E. coli in Gastrointestinal
(GI) tract.
Mutlag M. Al-Otaibi, Najeeb S. Al-Zoreky and Hassan A. El-Dermerdash, 2013. Camel's Milk as a Natural Source for Probiotics. Research Journal of Microbiology, 8: 70-80.
