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All Journal Jurnal Kimia Terapan Indonesia Annales Bogorienses
Nurul Fitri Sari
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Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Materials Science & Nanotechnology

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Antimicrobial Activity of Selenium Nanoparticles Synthesized by Actinomycetes Isolated from Lombok Island Soil Samples Shanti Ratnakomala; Nurul Fitri Sari; Fahrurrozi Fahrurrozi; Puspita Lisdiyanti
Jurnal Kimia Terapan Indonesia Vol 20, No 1 (2018)
Publisher : Research Center for Chemistry - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (546.255 KB) | DOI: 10.14203/jkti.v20i1.374

Abstract

AbstractA total of 98 actinomycetes were isolated from the soil and litter samples collected from the cacao and coffee plantation in Lombok Island, West Nusa Tenggara, Indonesia. These isolates were screened for their antimicrobial activity. Among 98 isolated strains, only 24 isolates showed antimicrobial activity against test microorganisms of which 20.4% were active against Bacillus subtilis BTCC B-612, 14.3% against Staphylococcus aureus BTCC B-611, and 5.1% against Escherichia coli BTCC B-609. Out of these 24 isolates, 3 were found to be able to grow in medium containing 3 mM Selenium oxide of which the culture were changed color to red. Two of the best strains, L-155 and L-156, were selected for assessing production of Selenium nanoparticles. Bioreduction of selenium nanoparticles was confirmed by UV–visible spectrophotometer which showed peak between 300 and 320 nm. Biosynthesized selenium nanoparticle from isolate actinomycetes L-155 and L-156 were found to have a broad spectrum of activity against the tested microorganisms: Bacillus subtilis, Staphylococcus aureus, Escherichia coli, Micrococcus luteus, and Candida albicans. This study showed rapid and eco-friendly synthesis of selenium nanoparticles from soil actinomycetes. Most of these active isolates revealed to possess antibacterial property.
The Screening of Antibacterial Activity of Selenium Nanoparticles Produced by Indonesian Marine Actinomycetes Shanti Ratnakomala; Akhirta Atikana; Nurul Fitri Sari; Roni Ridwan; Fahrurrozi Fahrurrozi; Puspita Lisdiyanti
Annales Bogorienses Vol. 29 No. 2 (2025): Annales Bogorienses
Publisher : National Research and Innovation Agency (BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/ann.bogor.2025.2921

Abstract

Actinomycetes strains can reduce SeO3-2 (selenite) and (or) SeO4-2 (selenate) to Se0, which is less toxic by forming selenium nanoparticles (SeNPs). This study aimed to screen the actinomycetes strains capable of biosynthesizing and producing SeNPs with antibacterial activity. This study showed that the antibacterial properties of SeNPs were synthesized biologically by the three strains of actinomycetes, e.g., the strains BLH 5-21, BLH 5-22, and BLH 12-1. The nanoparticles synthesized by the three actinomycetes strains were active against the pathogenic tested bacteria: Bacillus subtilis BTCC B-612, Staphylococcus aureus BTCC B-611, Micrococcus luteus BTCC B-552, Escherichia coli BTCC B-609, and Candida albicans Y-033. The PSA and SEM images showed that the selenium nanoparticles from strain BLH 12-1 had a spherical shape, and their mean diameter was between 64-110 nm, with an average size of 98 nm. The biogenic selenium nanoparticles have exhibited promising application prospects in medicine, biosensors, and environmental remediation. These microorganisms might be explored as the potential of microbial nano factory for synthesizing metal nanoparticles.
Co-Authors Akhirta Atikana Fahrurrozi Fahrurrozi Muh Watman PUSPITA LISDIYANTI Rohmatussolihat Rohmatussolihat Roni Ridwan Rusli Fidriyanto Shanti Ratnakomala Shanti Ratnakomala Wulansih Dwi Astuti Yantyati Widyastuti