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<p>In this study, <i>Spirulina platensis</i> biomass was extracted via an ultrasonic-assisted approach to evaluate its potential as an active antimicrobial agent in wound dressing. Bacterial cellulose with gum and the ethanolic extracts composite film was prepared by the <i>ex-situ</i> method. The microalgae dried at 55&#xa0;°C yielded the highest phenolic content of 31.33 ± 0.89&#xa0;mg-GAE/g with comparable antioxidant activity to that of the one dried at 45&#xa0;°C. The morphological study of the films showed the surface covered with the extract. The composite film showed a crystallinity index of 65.76%. The incorporation of extract into the matrix of BC was confirmed by FTIR. The film showed good swelling and water holding properties, with sustained release of bioactive compounds for 24&#xa0;h. It inhibits the growth of <i>Staphylococcus aureus</i> and <i>Pseudomonas aeruginosa</i> pathogenic strains. According to the properties determined, the film showed the potential to be explored for wound dressing.</p> Graphical abstract <p></p>

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Synthesis of bacterial cellulose film incorporated with phenolic polymers extract from microalgae (Spirulina platensis) as antimicrobial agent for biomedical application

  • 期刊论文

  • 发表日期：

    2026年4月20日

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  • Selorm Torgbo,
  • Prakit Sukyai,
  • Jantana Praiboon,
  • Khanjanapaj Lewmanomont

摘要

In this study, Spirulina platensis biomass was extracted via an ultrasonic-assisted approach to evaluate its potential as an active antimicrobial agent in wound dressing. Bacterial cellulose with gum and the ethanolic extracts composite film was prepared by the ex-situ method. The microalgae dried at 55 °C yielded the highest phenolic content of 31.33 ± 0.89 mg-GAE/g with comparable antioxidant activity to that of the one dried at 45 °C. The morphological study of the films showed the surface covered with the extract. The composite film showed a crystallinity index of 65.76%. The incorporation of extract into the matrix of BC was confirmed by FTIR. The film showed good swelling and water holding properties, with sustained release of bioactive compounds for 24 h. It inhibits the growth of Staphylococcus aureus and Pseudomonas aeruginosa pathogenic strains. According to the properties determined, the film showed the potential to be explored for wound dressing.

Graphical abstract