Antagonistic Activity of Bacillus Cereus against Human and Fish Pathogenic Bacteria
نویسندگان
چکیده
The most commonly used probiotic is usually characterized as gram positive, non motile, non sporulating bacteria that produce lactic acid as their main by product due to fermentation. The Morphological, Biochemical, Acid and Bile salt tolerance, Haemolytic test are used for identification and conformation of probiotic bacteria. Isolated Bacillus cereus was analyzed using the agar diffusion method, in terms of their general inhibition effects against few human/fish pathogens. The inhibitory effects of Bacillus cereus isolates against human and fish pathogenic bacteria Eshcherichia coli (7mm), Klebsiella spp(8mm), Bacillus spp (5mm), Proteus mirabilis (7mm), Serratia marcescens (12mm), Staphylococcus aureus (7mm), Vibrio harveyi (20mm), Vibrio parahaemolyticus (10mm). In this research, antagonistic activities of Bacillus cereus species isolated from kudukunda (Punitus melanampyx) fish sample were studied.
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