AKTIVITAS ANTAGONISTIK BAKTERI ASAM LAKTAT TERHADAP Vibrio parahaemolyticus PENYEBAB PENYAKIT ACUTE HEPATOPANCREATIC NECROSIS SYNDROME (AHPNS)

Lactic acid bacteria are widely known as probiotic bacteria that function as antimicrobials either directly through use in food or through the metabolites they produce. Metabolites produced by lactic acid bacteria have the ability to inhibit the growth of pathogenic bacteria.
The aim of this research is getting selected isolates that have the greatest antagonistic activity against pathogenic bacteria. There are 6 isolates of lactic acid bacteria from the shrimp digestive tract were tested against Vibrio parahaemolyticus bacteria which is known to cause Acute Hepatopancreatic Necrosis Syndrome (AHPNS) in shrimp. The six lactic acid bacteria isolates were SPU01, SPU02, SPU03, SPU04, SPU05 and SPU06. The antagonistic ability of
each isolate was different in inhibiting Vibrio parahaemolyticus. SPU01 and SPU04 were able to inhibit V. parahaemolyticus with the largest inhibition zone each 12.5 mm and 13.6 mm.