Jurnal Biologi Tropis
Vol. 23 No. 4 (2023): October - December

Activity Test of Ethanol Extract of Tamarind Leaves (Tamarindus indica L.) Against the Inhibitory Power of Escherichia coli Bacteria

Khaerul Ihwan (Universitas Nahdlatul Wathan Mataram)
Nurpiah (Universitas Nahdlatul Wathan Mataram)
Dwi Kartika Risfianty (Universitas Nahdlatul Wathan Mataram)
Pahmi Husain (Universitas Nahdlatul Wathan Mataram)
Irna Il Sanuriza (Universitas Nahdlatul Wathan Mataram)
Baiq Naili Dewi Atika (Universitas Nahdlatul Wathan Mataram)
Irfan Jayadi (Program Studi Agroteknologi, Fakultas Pertanian, Universitas Nahdlatul Wathan Mataram)



Article Info

Publish Date
18 Oct 2023

Abstract

Tamarind leaves (Tamarindus indica L.) contain compounds including saponins, flavonoids, and tannins. The content of tannin compounds in tamarind leaf extract (Tamarindus indica L.) is known to be used as an antidiarrheal bioagent. This study aims to identify antibacterial activity against Escherichia coli bacteria based on the potential of tamarind leaves (Tamarindus indica L.) as an anti-diarrheal bioagent. The design of this research is an experimental laboratory with randomized group design. The samples in this study were divided into 2 control groups, namely negative control (sterile aquades), positive control (ampiciilin), and 3 treatment groups, namely old and young tamarind leaf extract groups with each concentration of 25%, 50%, 75% and 100% with the number of samples for each treatment group as much as 3. Test the effectiveness of antimicrobials using the solid dilution method. The effectiveness of antimicrobials is demonstrated by the large diameter of the inhibitor on Muller Hilton Agar media. The results showed that the inhibitory power of young tamarind leaf extract ranged from 13.8 mm to 14.9 mm, while the inhibitory power of old tamarind leaf extract ranged from 10.7 mm to 11.9 mm, so that the inhibitory power of young tamarind leaf ethanol extract was greater than the type of old tamarind leaf ethanol’s extract.

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Journal Info

Abbrev

JBT

Publisher

Subject

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology

Description

Jurnal Biologi Tropis (ISSN Cetak 1411-9587 dan ISSN Online 2549-7863) diterbitkan mulai tahun 2000 dengan frekuensi 2 kali setahun oleh Program Studi Pendidikan Biologi PMIPA FKIP Universitas Mataram, berisi hasil penelitian dan ulasan Ilmiah dalam bidang Biologi ...