The Repellent Activity Test of Rosemary Leaf (Rosmarinus officinalis l) Essential Oil Gel Preparations Influence on Aedes aegypti Mosquito

Rosemary leaf (Rosmarinus officinalis L) is a plant containing essential oils such as geraniol, linalool, sineol, and burneol. Essential oils used as insect repellent. This research is about repellent test of Rosemary (Rosmarinus officinalis L) gel for Aedes aegypti mosquito which aims to find out whether Rosemary (Rosmarinus officinalis L) can provide activity as a repellent preparation for Aedes aegypti mosquitoes. Rosemary essential oils (Rosmarinus officinalis L) are formulated in the form of gel preparation with various concentration namely 6%, 12%, 24% and use positive control repellent supply on the market that contains DEET. Volunteer completed that process over 4 days. The volunteer arms were inserted into the cage containing 50 mosquitoes which had been applied to the gel. The test is performed for 5 minutes every 4 hours, with 5 repetitions. The result shows that Rosemary essentials oil (Rosmarinus officinalis L) gel has a repellent activity againts Aedes aegypti mosquito on F3 24% concentration with 92,15% protection for 4 hours. The stability of gel preparation that organoleptic do not change the color, taste, smell, and shape. Homogeneous gel preparation, with pH, dissipation, and viscosity are suitable for 8 weeks at different temperatures (4°C, 25°C and 40°C), and do not irritation to the skin