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Brown algae are less popular and very few people pay attention to the plant; the algae are scattered on coastal areas and people treat them like garbage. Brown alga has as many nutrient contents and benefits as other types of algae. Objective of this research is to describe antibacterial potential of brown algae (Sargassum polycystum) bacterial symbiotic by isolating the brown algae bacterial symbiont with biossay method and conducting the challenge test using S.aureus and E.coli bacteria. The findings showed that brown algae (Sargassum polycystum) have potential for antibacterial by isolating a total of isolate 24 antibacterial compound-producing isolates, namely 7 isolates from surface of the algae and 17 isolates from inside of the algae. Qualitative challenge test found that 1 isolate (sa B1L) from the surface of the algae and 4 isolates (Sa B2D, sa B3D, sa B4D, sa B5D) from inside the algae can inhibit growth of E.coli and S.aureus.

russian journal of agricultural and socio-economic sciences

ANTIBACTERIAL POTENTIAL OF BROWN ALGAE (SARGASSUM POLYCYSTUM) BACTERIAL SYMBIONT FROM COASTAL AREA IN BANTEN BAY, SERANG MUNICIPALITY, BANTEN OF INDONESIA