Amal Dbeibia, A. Mahdhi, Safa Jdidi, Khadijah A. Altammar, Tarek Zmanter, R. Mzoughi, Chédia Jabeur
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Probiotic potential of lactic acid bacteria isolated from colostrum of 3 different mammals
ABSTRACT This study aimed to investigate the in vitro properties of lactic acid bacteria isolated from colostrum samples of goat, sheep and cow. Four isolates of lactic acid bacteria identified through 16S rDNA sequencing were screened for probiotic potential including their enzymatic activities (hemolytic, DNase activity, API ZYM profiling and tolerance to the gastrointestinal conditions), their antimicrobial activities, their adhesion properties through biofilm formation capacity, auto-aggregation and co-aggregation with pathogens bacteria and hydrophobicity. They were also tested for their antibiotic susceptibility and antioxidant power. All the strains (ADG1b Lactobacillus gasseri, ZPana Lactiplantibacillus plantarum, S2ana Enterococcus hirae and ZGana Lactobacillus gasseri) demonstrated probiotic properties and they could resist different gastrointestinal conditions. They displayed good antimicrobial activities. Furthermore, they had high antioxidant power, although strain dependent. The results of this study showed that L. gasseri (ADG1b) is the most promising probiotic.
期刊介绍：
Food Biotechnology is an international, peer-reviewed journal that is focused on current and emerging developments and applications of modern genetics, enzymatic, metabolic and systems-based biochemical processes in food and food-related biological systems. The goal is to help produce and improve foods, food ingredients, and functional foods at the processing stage and beyond agricultural production.
Other areas of strong interest are microbial and fermentation-based metabolic processing to improve foods, food microbiomes for health, metabolic basis for food ingredients with health benefits, molecular and metabolic approaches to functional foods, and biochemical processes for food waste remediation. In addition, articles addressing the topics of modern molecular, metabolic and biochemical approaches to improving food safety and quality are also published.
Researchers in agriculture, food science and nutrition, including food and biotechnology consultants around the world will benefit from the research published in Food Biotechnology. The published research and reviews can be utilized to further educational and research programs and may also be applied to food quality and value added processing challenges, which are continuously evolving and expanding based upon the peer reviewed research conducted and published in the journal.
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