Effectiveness of the Essential Oil from Green Peels of Kaffir Lime Fruits and Coconuts to Repel Mosquitoes
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Abstract
This pre-experimental research with a one-group pretest-posttest design aimed to study the attitude, satisfaction, and effectiveness of the herbal mosquito repellent essential oil to repel mosquitoes using 30 volunteers living in Tha Ngio Subdistrict, Mueang District, Nakhon Si Thammarat Province. These volunteers were provided with herbal essential oil, which was poured into an electric mosquito-repellent machine. The obtained herbal essential oil contained coconut oil and the oil from green peels of kaffir lime fruits extracted by the cold-pressed method. Data were collected using a questionnaire and a mosquito bite record form. A paired sample t-test at a 0.05 level of significance was used to assess the differences in mosquito bite frequency before and during utilizing this herbal essential oil. The results showed that there were no allergic symptoms reported by our volunteers. For attitude and satisfaction towards using herbal mosquito repellent essential oil, volunteers had overall scores of both at high levels. A different analysis of mosquito bite frequency before and during utilizing herbal essential oil showed that before use, it had a high level (44.77 times a week), but during use, it showed a lower mosquito bite frequency (22.10 times a week). The decrease in mosquito bite frequency was statistically significant (p-value <0.001). This herbal mosquito repellent essential oil was safe and easy to follow, which could encourage people to produce it for their own use or lead to the development of mosquito repellent products in the future.
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