Uji Aktivitas Antimikroba Daun Ubi Jalar (Ipomoea batatas L) terhadap bakteri Escherichia colli, Shigella dysentriae dan Candida albicans

Abstract

The research aim to acknowledge chemical compound that found in sweet potato leaves to slows down the antimicrobial Escherichia coli, Shigella dysentriae and Candida albicans. The method that use to extract the sweet potato leaves is maceration method with n-hexan solvent and ethyl acetate. Experiment activity antimicrobial sweet potato leaves towards microbial pathogen use diffusion method by Kirby Bauer with variations of treatment 25%, 50%, 75% and 100% with antibiotics too look whether sweet potato leaves extract can be used as an alternative medicine antimicrobial is Chloramphenicol and Nystatin. The result of experiment shows that the sweet potato leaves extract countains chemical compound secondary metabolic there are flavonoid, alkaloid, triterpenoid, tanin and saponin with the good solvent ethyl acetate. Sweet potato leaves have antimicrobial activity with Escherichia coli, Shigella dysentriae and Candida albicans with the biggest clear transparan on Escherichia coli in concentrate 100% in the amount of 15.5mm, on Shigella dysentriae in concentrate 100% in the amount of 14.4mm, and Candida albicans is at 100% concentrate 100% in the amount of 19.0mm.