Antibacterial Activity of Phenolic Compounds Fraction Robusta Coffee (Coffea canephora L.) Pulp Fraction
DOI:
https://doi.org/10.29303/jku.v12i3.952Keywords:
antibacterial, E.coli, phenolic, pulp, robusta, S.aureusAbstract
Coffee robusta pulp contain phenolic compunds that have biological effects especially as an antibacterial agent. The aim of this study was to determine the content of phenolic compounds and antibacterial activity from Staphylococcus aureus and Escherichia coli. The sampel was extracted and then fractionated with aquades and ethyl acetate. Qualitative analysis was analyzed by tube test and Thin Layer Chromatography (TLC). Antibacterial activity tested using the disc diffusion method with positive control (Chloramphenicol 1%), negative control (DMSO 10%), ethanol extract (concentration 20; 30; and 40%) and both fractions (concentration 2; 3; and 4%). The results of the analysis showed that the extract, water fraction, and ethyl acetate fraction contained phenolic compounds. The results of the antibacterial activity analyzed with SPSS using Kruskall-Wallis and Mann-Whitney test. Antibacterial test of the extract and ethyl acetate fraction were able to inhibited the growth of S. aureus, while only extract 40% and ethyl acetate fraction were inhibited the growth of E. coli. From this study, it can be concluded that ethanol extract and ethyl acetate fraction of coffee robusta pulp has potential as an antibacterial candidate.
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