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The Effectiveness of Fixative Addition on Zodia (Evodia suaveolens S.) and Rosemary (Rosmarinus officinalis l.) Gel against Aedes aegypti
Background: Aedes aegyptiis a mosquito is one of the vectors for dengue. One method of preventing dengue is to use bio insecticides from plants. A plant that is often used as a mosquito repellent is Zodia (Evodia suaveolens scheff) and Rosemary (Rosmarinus officinalis l.). Some studies have modified the dosage of bio insecticides to achieve more durable repellent, including developing a gel form.
The aim of this study is to measure the protective effect of additional fixative material (patchouli oil) on Rosemary and Zodia repellent.
Methods:This was an experimental study using gel made from essential oil of Rosemary flowers and Zodia leaves with concentrations of 0.1%, 0.5 %, 1 %, 2 %, 4 %, respectively. Control (+) group used N, N-diethyl-3 (methylbenzamide (DEET) on the arms, while control (-) group were arms with no treatment. The repellent was tested on the arms of trained volunteers, which were then observed every hour for six hours. The protective effectiveness was satisfactory if ≥90%.
Results:Addition of fixative material increased the durability of repellent, starting from concentration of 2% for Rosemary and concentration of 4% for Zodia. The protective effectiveness was 90% for more than 6 hours. Conclusion:The modified gel of Zodia and Rosemary proved to be a potential repellent against Aedes aegyptimosquitos. (Health Science Indones 2013;2:103-6)
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