Antibacterial Ability of Rhizophora mucronata Leaf Extract Against Bacterial Infections of Edwardsiella tarda

Authors

  • Ramanda Ahmad Rizal Rifa'i Brawijaya University
  • Sri Andayani University of Brawijaya
  • Mohamad Fadjar University of Brawijaya

DOI:

https://doi.org/10.21776/ub.jels.2022.013.01.02

Abstract

Edwardseilla tarda is a group of gram-negative bacteria with facultative anaerobic properties that can infect both cultivated and wild fish. Edwardseilla tarda infection causes considerable economic losses in the world. Rhizopora mucronata is a plant that is known to have the ability to produce secondary metabolites such as alkaloids and flavonoids. This study aims to determine the ability of R. mucronata to inhibit the growth of E. tarda as indicated by the presence of an inhibition zone and the absorbance value in the tube dilution test. The method used in this study is the disc diffusion test and the tube dilution test. The results of the phytochemical analysis showed the presence of flavonoid and alkaloid compounds in the crude extract of R. mucronata leaves. A concentration of 15.6 mg.L-1 showed a minimal inhibitory response in inhibiting the growth of E. tarda bacteria. In comparison, the concentration of 56 mg.L-1 showed the highest inhibitory response in inhibiting the growth of E. tarda bacteria. It indicates that the compounds contained in R. mucronata can be used as alternative ingredients in medicine to treat E. tarda bacterial infections.

Keywords: Alkaloid, Antibacterial, E. tarda, Flavonoid, R. mucronata.

Author Biographies

Sri Andayani, University of Brawijaya

Departement of Aquaculture,  Faculty of Fisheries and Marine Science

Mohamad Fadjar, University of Brawijaya

Departement of Aquaculture,  Faculty of Fisheries and Marine Science

Downloads

Published

2023-02-28

Issue

Vol. 13 No. 1 (2023)

Section

Articles

License

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Authors who publish with this journal agree to the following terms:

    1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.

    1. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.

  1. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).