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<p>Wool is a proteinic fiber with unique properties like breathability, excellent moisture management, and odor resistance; these features make it highly desirable for next-to-skin applications. Polyamide 6 (PA6) fabric as well is a strong, durable, and versatile fabric. Recently natural dyes from plants and microorganisms with predominant properties have been widely used in textile coloration to avoid synthetic dyes, which are often petroleum-based. This study is the first investigation into the pigment-producing capability of <i>Aspergillus turcosus</i>, a strain that hasn’t been associated with this activity before. The extracted pigment has been used in dyeing wool and polyamide 6 fabrics at different reaction conditions. The chemical characterization for the functional groups of the extracted pigment has been identified using Fourier Transform Infrared Spectroscopy <i>(FTIR)</i> and Nuclear Magnetic Resonance analysis <i>(NMR)</i>. The colorimetric data were assigned for the dyed fabrics, and the results showed that the extracted pigment showed a good affinity to the fabrics with good colorfastness properties. Antibacterial activity was assigned, and the data revealed an increase in the inhibition zone diameter from 0 to 31&#xa0;mm for wool fabric and from 0 to 35&#xa0;mm for PA6 fabrics. Additionally, the dyed fabrics showed enhancement in the antioxidant inhibition rate from 15 to 60% for wool fabric and 10 to 45% for PA6 fabrics compared to the undyed ones. The extracted pigment also enhanced the UPF of the dyed fabrics by 65% and 85% for wool and PA6, respectively.</p>

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A green approach to antibacterial and antioxidant wool and polyamide 6 fabrics through bioactive Aspergillus turcosus extracted pigment for healthy and high-performance textile products

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年6月19日

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  • Marwa Abou-Taleb,
  • Rania A. Zaki,
  • Sanaa K. Gomaa

摘要

Wool is a proteinic fiber with unique properties like breathability, excellent moisture management, and odor resistance; these features make it highly desirable for next-to-skin applications. Polyamide 6 (PA6) fabric as well is a strong, durable, and versatile fabric. Recently natural dyes from plants and microorganisms with predominant properties have been widely used in textile coloration to avoid synthetic dyes, which are often petroleum-based. This study is the first investigation into the pigment-producing capability of Aspergillus turcosus, a strain that hasn’t been associated with this activity before. The extracted pigment has been used in dyeing wool and polyamide 6 fabrics at different reaction conditions. The chemical characterization for the functional groups of the extracted pigment has been identified using Fourier Transform Infrared Spectroscopy (FTIR) and Nuclear Magnetic Resonance analysis (NMR). The colorimetric data were assigned for the dyed fabrics, and the results showed that the extracted pigment showed a good affinity to the fabrics with good colorfastness properties. Antibacterial activity was assigned, and the data revealed an increase in the inhibition zone diameter from 0 to 31 mm for wool fabric and from 0 to 35 mm for PA6 fabrics. Additionally, the dyed fabrics showed enhancement in the antioxidant inhibition rate from 15 to 60% for wool fabric and 10 to 45% for PA6 fabrics compared to the undyed ones. The extracted pigment also enhanced the UPF of the dyed fabrics by 65% and 85% for wool and PA6, respectively.