Natural wound dressing films prepared from acetylated starch/κ-carrageenan blend incorporated with mandelic acid


  • Wimolsiri SRIPHOCHAI Department of Chemistry, School of Science, King Mongkut’s Institute of Technology Ladkrabang (KMITL), Bangkok 10520, Thailand
  • Jutarat PRACHAYAWARAKORN Department of Chemistry, School of Science, King Mongkut’s Institute of Technology Ladkrabang (KMITL), Bangkok 10520, Thailand; Advanced Materials Research Unit, School of Science, King Mongkut’s Institute of Technology Ladkrabang (KMITL), Bangkok 10520, Thailand



Acetylated starch, κ-Carrageenan, Mandelic acid, Modification, Wound dressing


Due to several limitations of acetylated starch film for wound dressing applications such as low mechanical properties and no antibacterial activity, acetylated starch film was, therefore, modified by different contents of κ-carrageenan and mandelic acid. Infrared spectra confirmed the presence of κ-carrageenan and mandelic acid in the modified acetylated starch films. In addition, the decreased crystallinity of the carrageenan modified acetylated starch films led to more smooth film, as observed by scanning electron images. Besides, the addition of various amounts of κ-carrageenan in the modified acetylated starch films caused the improvement of mechanical properties, moisture uptake, water vapor transmission rate (WVTR), and degree of swelling. Moreover, κ-carrageenan modified acetylated starch film loaded with 20 wt% of mandelic acid exhibited antibacterial property against both S.aureus and E.coli bacteria. Additionally, degree of crystallinity, mechanical properties, moisture uptake, WVTR, degree of swelling, antibacterial activity, and cytotoxicity of κ-carrageenan modified acetylated starch films added by different amounts of mandelic acid were also studied.


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How to Cite

W. SRIPHOCHAI and J. . PRACHAYAWARAKORN, “Natural wound dressing films prepared from acetylated starch/κ-carrageenan blend incorporated with mandelic acid”, J Met Mater Miner, vol. 34, no. 2, p. 1984, Jun. 2024.



Original Research Articles