eng Oriental Scientific Publishing Company Biomedical and Pharmacology Journal 0974-6242 2015-03-28 4 1 227 229 1909 article S. Priya 1 S. Santhiya 1 B. Jancy 1 P.G. Department of Biotechnology, S.T.E.T.Women’s College, Mannargudi - 614 001 (India). Vibrios are the most common genera associated with crustaceans. The genus Vibrio were isolated from marine prawn (Penaeus monodon). The isolates were screened for vibriocin production. The best producer was identified as Vibrio parahaemolyticus .The maximum production of Vibrio spp. was manifested at 37ºC at pH 9, after 20h of incubation. The Vibrio spp. was confirmed by the presence of biochemical tests methyl red, VP and oxidase test. Its activity was enhanced in the presence of TCBS medium and withstands autoclaving temperature and showed activity even after prolonged chloroform treatment. https://biomedpharmajournal.org/vol4no1/vibriocin-production-by-marine-prawn-associated-vibrio-spp/ Vibriocin marine prawn biochemical key