Evaluation of the antibacterial activity of pigment extracts and 16s rRNA-based identification of pigment-producing bacteria isolated from soil

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dc.contributor.authorAlbayrak İskender, Nurcan
dc.date.accessioned2025-10-02T07:30:14Z
dc.date.available2025-10-02T07:30:14Z
dc.date.issued2025
dc.departmentAÇÜ, Sağlık Hizmetleri Meslek Yüksekokulu, Tıbbi Hizmetler ve Teknikler Bölümü
dc.description.abstractThis study aimed to isolate pigment-producing bacteria from soil samples collected in the Artvin province for the first time, extract their pigments, and evaluate their antimicrobial activities. Fifteen bacterial isolates were obtained and identified through morphological and biochemical characterization, followed by 16S rRNA gene sequencing. The isolates were identified as Arthrobacter ruber (P1, P20), Rhodococcus sp. (P2, P6, P7), Micrococcus yunnanensis (P4), Metabacillus indicus (P5), Arthrobacter sp. (P9, P10), Peribacillus muralis (P12), Chitinophaga arvensicola (P16), Streptomyces lincolnensis (P17), Arthrobacter agilis (P18, P21), and Nocardia tenerifensis (P22). These isolates produced pigments in various hues such as red, pinkish-brown, yellow, yellowish-orange, light salmon-pink, and brownish tones. The antimicrobial activity of the pigment extracts was tested using dry disc diffusion method against Candida albicans, Staphylococcus aureus, Escherichia coli, and Proteus mirabilis. Only the methanol and acetone extracts of pigments from S. lincolnensis and N. tenerifensis exhibited inhibitory activity, specifically against S. aureus. Notably, the acetone extract of N. tenerifensis (P22) demonstrated the highest antimicrobial effect with a 17.6 mm inhibition zone. High-Performance Liquid Chromatography (HPLC) analysis confirmed the presence of bioactive compounds in these extracts. The findings highlight the significant biotechnological potential of these pigment-producing soil bacteria as sources of natural antimicrobial agents.
dc.identifier.doi10.15666/aeer/2304_83658389
dc.identifier.endpage8389
dc.identifier.issn15891623
dc.identifier.issue4
dc.identifier.scopus2-s2.0-105014386553
dc.identifier.scopusqualityQ3
dc.identifier.startpage8365
dc.identifier.urihttps://hdl.handle.net/11494/5949
dc.identifier.volume23
dc.identifier.wosWOS:001540806300001
dc.identifier.wosqualityQ4
dc.indekslendigikaynakScopus
dc.indekslendigikaynakWeb of Science
dc.institutionauthorAlbayrak İskender, Nurcan
dc.language.isoen
dc.publisherCorvinus University of Budapest
dc.relation.ispartofApplied Ecology and Environmental Research
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectAntimicrobial activity
dc.subjectBacterial pigments
dc.subjectBioactive compounds
dc.subjectHPLC
dc.subjectPigment extraction
dc.subjectSoil bacteria
dc.titleEvaluation of the antibacterial activity of pigment extracts and 16s rRNA-based identification of pigment-producing bacteria isolated from soil
dc.typeArticle

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