Proceedings of The 5th Annual International Seminar on Trends in Science and Science Education, AISTSSE 2018, 18-19 October 2018, Medan, Indonesia

Research Article

Antibacterial Activity of Extract Ethyl Acetate and Ethanol of Raru (Vatica pauciflora Blume)

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  • @INPROCEEDINGS{10.4108/eai.18-10-2018.2287185,
        author={Ida Duma Riris and Endang Sulistyarini Gultom and Lazuardi  Lazuardi and Albinus  Silalahi and Dewi  Purba},
        title={Antibacterial Activity of Extract Ethyl Acetate and Ethanol of Raru  (Vatica pauciflora Blume)},
        proceedings={Proceedings of The 5th Annual International Seminar on Trends in Science and Science Education, AISTSSE 2018, 18-19 October 2018, Medan, Indonesia},
        publisher={EAI},
        proceedings_a={AISTSSE},
        year={2019},
        month={10},
        keywords={raru (vatica pauciflora blume) anti bacteria e-coli and st aureus},
        doi={10.4108/eai.18-10-2018.2287185}
    }
    
  • Ida Duma Riris
    Endang Sulistyarini Gultom
    Lazuardi Lazuardi
    Albinus Silalahi
    Dewi Purba
    Year: 2019
    Antibacterial Activity of Extract Ethyl Acetate and Ethanol of Raru (Vatica pauciflora Blume)
    AISTSSE
    EAI
    DOI: 10.4108/eai.18-10-2018.2287185
Ida Duma Riris1,*, Endang Sulistyarini Gultom1, Lazuardi Lazuardi1, Albinus Silalahi1, Dewi Purba1
  • 1: Faculty of Mathematics and Natural Science, State University of Medan, North Sumatera, Indonesia
*Contact email: dumariris@gmail.com

Abstract

This research purpose is to show the inhibition of the extract of ethanol and ethyl acetate stem bark and leaf of Raru according to the causes of bacterial E-coli (ATCC 25922) and St Aureus (ATCC 25923) with variation concentration 10%, 5%, 2.5% and 1.25%. Methods used were diffusion with disk blank paper and disk cloramphenicol as a control. The highest result observed on 10% concentration among the variation. This concentration then compared with control and the result as follow for stem bark of ethanol and ethyl acetate exctract for bacterial E-coli and St Aureus : 14.7 and 14.5 ; 11.6 and 13.5. for leaf : 14.6 and 13.5; 14.0 and 13.30