Antimicrobial Potentialof Hemolymph and Hepatopancreas Ofportunussegniscrabs

Objective: The potential of marine crabs as a source of bioactive products is largely unexplored. Methods: Portunussegnis crabs were collected from the northern coast of Persian Gulf. Antimicrobial activities of hepatopancreas, hemolymph and proteins of hemplymph from P. segnis crabs against a range of 11 different bacterial and 6 fungal pathogen strains were examined. Two positive controls Amoxicillin and Penicillin were also used. Results: The maximum(16 mm) and minimum (7.2 mm) activity was recorded from male hemolymph and male hepatopancreas against Entrobacter sp. and Serratiamarcesences respectively. Incomparison with bacterial pathogens, fungal pathogens showed more resistance to the extracts. Conclusion: Results show that hemolymph and hepatopancreas of brachyuran crabs may have Antimicrobial activity.