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All Journal HAYATI Journal of Biosciences
Nakthong, Muthita
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Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences

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Isolation, Identification, Antimicrobial Activities, and Application of the Crude Pigmented Extract of Soil Actinobacteria in Handicraft and Painting Urtgam, Sittichai; Puengtang, Chaowalit; Nakthong, Muthita; Sa-ngat, Pijittra; Sirisan , Prattana; Sumpradit , Tawatchai; Thurnkul , Naruemol
HAYATI Journal of Biosciences Vol. 33 No. 1 (2026): January 2026
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.33.1.129-141

Abstract

A total of 21 actinobacterial strains were isolated from soils in Thailand. The selected strains were applied for pigment extraction before handicraft and painting application. Based on the color tones, 4 actinobacterial strains, namely B3 (yellow), B8 (violet), F4 (brown), and F9 (pink), were selected. Their antimicrobial activities against pathogenic bacteria and molds, including Escherichia coli PSRU-01, Staphylococcus aureus PSRU-01, Colletotrichum sp. NPJM -01, and Fusarium sp. PSRU-01 were tested using the agar well and the poisoned food techniques. Phylogenetic identification was analyzed on the basis of partial 16S rDNA sequence comparison for species delineation. They closed Streptomyces tendae 99.73% (B3), Streptomyces muensis 99.52% (B8), Streptomyces ardesiacus 99.38% (F4), and Streptomyces iakyrus 99.59% (F9). These strains were evaluated for their potential as colorants in handicraft clay and painting colors. Streptomyces pigment may be a naturally produced and eco-friendly alternative for handicraft and painting applications.
Co-Authors Puengtang, Chaowalit Sa-ngat, Pijittra Sirisan , Prattana Sumpradit , Tawatchai Thurnkul , Naruemol Urtgam, Sittichai