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<p>Synthetic dyes and mordants have detrimental effects on the environment, prompting investigations into alternative methods and sources for extracting natural dyes and mordants. This study investigated the phytochemical, antioxidant, and antimicrobial properties of extracts from <i>Rosa indica</i>, <i>Bougainvillea glabra</i>, and <i>Tagetes erecta</i>. The extracts were analyzed via Fourier transform infrared (FTIR) spectroscopy to identify bioactive compounds. Spectrophotometric analysis was used to determine the total phenolic content (TPC) and total flavonoid content (TFC). Antioxidant activity was evaluated via the DPPH free radical scavenging assay. The results revealed that <i>R. indica</i> presented the highest TPC, whereas <i>B. glabra</i> presented the highest TFC. Additionally, the potential use of these extracts as natural dyes was investigated, including their colorfastness properties. The natural dyes were applied to cotton fabrics via different mordants, and their color strength and fastness were evaluated. The results revealed that <i>B. glabra</i> presented the best colorfastness properties. The antimicrobial activity of the extracts was also evaluated against <i>E. coli and B. subtilis</i>. The results showed that <i>B. glabra</i> had the strongest antimicrobial activity. By combining the biological activity, dyeing potential, and phytochemical profile of <i>B. glabra</i>,<i> R. indica</i>, and <i>T. erecta</i>, this work fills this gap. By integrating phytochemical profiling, dyeing performance, and biological activity evaluation, this study provides a comprehensive framework for the dual use of floral extracts in sustainable textile and pharmaceutical applications.</p>

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Investigating the Phytochemical and Biological Activities of Rosa indica, Bougainvillea glabra, and Tagetes Erecta Extracts for Textile and Pharmaceutical Applications

  • 期刊论文

  • 发表日期：

    2026年3月14日

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  • Faiza Nazir,
  • Maryam Aslam,
  • Ahsan Nazir,
  • Muahmmad Atif,
  • Robass Ahmad,
  • Hafiz Affan Abid,
  • Shifa Shaffique,
  • Khalid F. Almutairi,
  • Khalid M. Elhindi,
  • Hosam O. Elansary

摘要

Synthetic dyes and mordants have detrimental effects on the environment, prompting investigations into alternative methods and sources for extracting natural dyes and mordants. This study investigated the phytochemical, antioxidant, and antimicrobial properties of extracts from Rosa indica, Bougainvillea glabra, and Tagetes erecta. The extracts were analyzed via Fourier transform infrared (FTIR) spectroscopy to identify bioactive compounds. Spectrophotometric analysis was used to determine the total phenolic content (TPC) and total flavonoid content (TFC). Antioxidant activity was evaluated via the DPPH free radical scavenging assay. The results revealed that R. indica presented the highest TPC, whereas B. glabra presented the highest TFC. Additionally, the potential use of these extracts as natural dyes was investigated, including their colorfastness properties. The natural dyes were applied to cotton fabrics via different mordants, and their color strength and fastness were evaluated. The results revealed that B. glabra presented the best colorfastness properties. The antimicrobial activity of the extracts was also evaluated against E. coli and B. subtilis. The results showed that B. glabra had the strongest antimicrobial activity. By combining the biological activity, dyeing potential, and phytochemical profile of B. glabra, R. indica, and T. erecta, this work fills this gap. By integrating phytochemical profiling, dyeing performance, and biological activity evaluation, this study provides a comprehensive framework for the dual use of floral extracts in sustainable textile and pharmaceutical applications.