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All Journal Journal of the Medical Sciences (Berkala Ilmu Kedokteran) As-syifaa Jurnal Farmasi Journal Microbiology Science Jurnal Pengabdian Farmasi dan Sains
Nurung, Ayyub Harly
Fakultas Farmasi, Universitas Muslim Indonesia, Makassar
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Health Professions Immunology & microbiology Medicine & Pharmacology Neuroscience

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Potential of Antibacterial Producing Rhizosphere Bacteria from Porang Roots (Amorphophallus muelleri Blume) against Gastrointestinal Pathogens Nuryanti, Siska; Nurung, Ayyub Harly; Akihito mr, Andi Al Kahfi
Journal Microbiology Science Vol 5, No 2 (2025): Volume 5(2) 2025
Publisher : Fakultas Farmasi, Universitas Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56711/jms.v5i2.1342

Abstract

Increasing antibiotic resistance in gastrointestinal pathogens such as Escherichia coli, Shigella dysenteriae, and Vibrio cholerae encourages the search for new antimicrobial agents. This study aims to evaluate the antibacterial potential of rhizosphere bacteria from porang roots (Amorphophallus muelleri Blume) against the three pathogens through in vitro tests. Isolation was carried out from rhizosphere soil using a serial dilution technique. Eleven isolates were characterized morphologically and tested for antibacterial activity using the agar diffusion method. Two selected isolates (IBRAM-2 and IBRAM-11) were fermented and extracted with ethyl acetate. Antibacterial activity was evaluated using the Minimum Inhibitory Concentration (MIC) and Minimum Bactericidal Concentration (MBC) tests with the microdilution and drop plate methods, each with three replications and chloramphenicol as a positive control. The results showed an inhibition zone of 13.2–18.7 mm. The MIC value is 25,000 ppm, while the MBC value ranges from 25,000–50,000 ppm. Although it shows antibacterial activity, the high concentration required indicates weak antibacterial potential.
Co-Authors Adnan, Afdina Putri Akihito mr, Andi Al Kahfi Ambon, Nur Intan Asnita Asnita Bayu Putra, Bayu Dewi Kartikawati Paramita Erwing, Erwing Fitriana Fitriana Fitriana Fitriana Fitriana Fitriana Fitriana Herwin Herwin Herwin Herwin Herwin, Herwin Massaressung, Andi Musfatir, Harvanita Muzakkir Baits, Muzakkir Naim, Nurul Khatimah Nurul Khatimah Naim Putra, Aryadi Surya R. Rusli Rachmat Kosman Rachmat Kosman, Rachmat Rahmadhani, Paramita Rahman, Safriana Ririn Ririn Rusli Safriani Rahman, Safriani Sandyna, Muh. Ivan Saputra, Muh. Satrio Surya Siska Nuryanti, Siska Sitti Amirah Sri Herwiyanti, Sri Tadjuddin Naid Umaiyah, Ummi Putri Widowati, Fairuz Dyah Yoga Yuniadi