Anita Soroh1, Lucy Owen1, Noor Rahim1, Jinit Masania2, Amos Abioye3,4, Omar Qutachi3, Larry Goodyer1, Jinsong Shen5, Katie Laird1. 1. Infectious Disease Research Group, The Leicester School of Pharmacy, De Montfort University, Leicester, UK. 2. Technical Services Mass Spectrometry, The Leicester School of Pharmacy, De Montfort University, Leicester, UK. 3. Pharmaceutical Technologies Research Group, The Leicester School of Pharmacy, De Montfort University, Leicester, UK. 4. Lloyd L. Gregory School of Pharmacy, Palm Beach Atlantic University, West Palm Beach, Florida, USA. 5. Textile Engineering and Materials Research Group, School of Fashion and Textiles, De Montfort University, Leicester, UK.
Abstract
AIMS: To develop an essential oil (EO)-loaded textile coating using an environmentally-friendly microemulsion technique to achieve both antimicrobial and mosquito repellent functionalities. METHODS AND RESULTS: Minimum inhibitory concentrations and fractional inhibitory concentrations of litsea, lemon and rosemary EOs were determined against Staphylococcus aureus, Escherichia coli, Staphylococcus epidermidis, Pseudomonas aeruginosa and Trichophyton rubrum. A 1:2 mixture of litsea and lemon EOs inhibited all the microorganisms tested and was incorporated into chitosan-sodium alginate assembly by a microemulsification process. The EO-loaded microemulsions were applied to cotton and polyester fabrics using a soak-pad-dry method. The textile challenge tests demonstrated 7-8 log10 reductions of S. epidermidis, S. aureus and E. coli after 24 h and T. rubrum after 48 h. Aedes aegypti mosquito repellency was also assessed which demonstrated 71.43% repellency compared to 52.94% by neat EO-impregnated cotton. CONCLUSIONS: Textiles treated with the litsea and lemon EO microemulsion showed strong antimicrobial activity against the skin associated microorganisms E. coli, S. aureus, S. epidermidis and T. rubrum and potential mosquito repellent properties. SIGNIFICANCE OF STUDY: EOs could be useful for the development of natural, environmentally-friendly functional textiles to protect textiles and users from microbial contamination in addition to possessing other beneficial properties such as mosquito repellency. This article is protected by copyright. All rights reserved.
AIMS: To develop an essential oil (EO)-loaded textile coating using an environmentally-friendly microemulsion technique to achieve both antimicrobial and mosquito repellent functionalities. METHODS AND RESULTS: Minimum inhibitory concentrations and fractional inhibitory concentrations of litsea, lemon and rosemary EOs were determined against Staphylococcus aureus, Escherichia coli, Staphylococcus epidermidis, Pseudomonas aeruginosa and Trichophyton rubrum. A 1:2 mixture of litsea and lemon EOs inhibited all the microorganisms tested and was incorporated into chitosan-sodium alginate assembly by a microemulsification process. The EO-loaded microemulsions were applied to cotton and polyester fabrics using a soak-pad-dry method. The textile challenge tests demonstrated 7-8 log10 reductions of S. epidermidis, S. aureus and E. coli after 24 h and T. rubrum after 48 h. Aedes aegypti mosquito repellency was also assessed which demonstrated 71.43% repellency compared to 52.94% by neat EO-impregnated cotton. CONCLUSIONS: Textiles treated with the litsea and lemonEO microemulsion showed strong antimicrobial activity against the skin associated microorganisms E. coli, S. aureus, S. epidermidis and T. rubrum and potential mosquito repellent properties. SIGNIFICANCE OF STUDY: EOs could be useful for the development of natural, environmentally-friendly functional textiles to protect textiles and users from microbial contamination in addition to possessing other beneficial properties such as mosquito repellency. This article is protected by copyright. All rights reserved.