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In recent years, protective textile materials have captured a lot of attention, and the textile sector is increasingly focusing on natural raw materials that are economically and environmentally safe. In the present investigation, gelatin-gum arabic microcapsules filled with catnip oil were prepared using the complex coacervation technique of microencapsulation. The treated cotton fabric was investigated for mosquito repellent and antibacterial properties using standard testing methods. Since ancient times, people have used plant-based repellents as a form of personal protection against mosquitoes and bacterial infestations. Therefore, catnip oil was used in this study for the development of a novel natural-based finish for cotton as an alternative to chemical repellents. Catnip essential oil is dominated by nepetalactone isomers and has many medicinal properties, along with the potential to repel mosquitoes, bacteria, and other insects. The characterization of the prepared microcapsules and the treated fabric was evaluated using scanning electron microscopy (SEM) and Fourier transform infrared (FTIR) spectroscopy. The encapsulation yield percentage was also calculated to optimize the concentration and ratio of wall material and core material. Also, the microcapsules provided a controlled release system, which delivered excellent wash durability up to 10 washes. It was found that the gelatin-gum arabic microcapsules with catnip essential oil showed a yield percentage of 75.43%. The results also revealed that the encapsulated cotton fabric displayed an antibacterial percentage of 99.9% against both the bacteria, Staphylococcus aureus and Klebsiella pneumoniae, and after 10 washes it retained the properties with 98.6% and 96.5% antibacterial efficacy against Staphylococcus aureus and Klebsiella pneumoniae, respectively. The excito chamber mosquito repellency test showed 100% and 90% repellency before wash and after 10 washes, respectively. The results showed that the finished fabric developed from eco-friendly wall and core materials was durable against both properties, suggesting that the catnip essential oil can effectively repel mosquitoes and inhibit bacteria.

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Development and Evaluation of Mosquito Repellent and Antibacterial Microcapsules Containing Catnip Essential Oil Using a Complex Coacervation Approach

  • 会议论文

  • 发表日期：

    2025年

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  • Rupali Kakaria,
  • Neha Singh,
  • M. S. Parmar

摘要

In recent years, protective textile materials have captured a lot of attention, and the textile sector is increasingly focusing on natural raw materials that are economically and environmentally safe. In the present investigation, gelatin-gum arabic microcapsules filled with catnip oil were prepared using the complex coacervation technique of microencapsulation. The treated cotton fabric was investigated for mosquito repellent and antibacterial properties using standard testing methods. Since ancient times, people have used plant-based repellents as a form of personal protection against mosquitoes and bacterial infestations. Therefore, catnip oil was used in this study for the development of a novel natural-based finish for cotton as an alternative to chemical repellents. Catnip essential oil is dominated by nepetalactone isomers and has many medicinal properties, along with the potential to repel mosquitoes, bacteria, and other insects. The characterization of the prepared microcapsules and the treated fabric was evaluated using scanning electron microscopy (SEM) and Fourier transform infrared (FTIR) spectroscopy. The encapsulation yield percentage was also calculated to optimize the concentration and ratio of wall material and core material. Also, the microcapsules provided a controlled release system, which delivered excellent wash durability up to 10 washes. It was found that the gelatin-gum arabic microcapsules with catnip essential oil showed a yield percentage of 75.43%. The results also revealed that the encapsulated cotton fabric displayed an antibacterial percentage of 99.9% against both the bacteria, Staphylococcus aureus and Klebsiella pneumoniae, and after 10 washes it retained the properties with 98.6% and 96.5% antibacterial efficacy against Staphylococcus aureus and Klebsiella pneumoniae, respectively. The excito chamber mosquito repellency test showed 100% and 90% repellency before wash and after 10 washes, respectively. The results showed that the finished fabric developed from eco-friendly wall and core materials was durable against both properties, suggesting that the catnip essential oil can effectively repel mosquitoes and inhibit bacteria.