The proper drying techniques are the most important aspect for preservation of aroma and colour of basil leaves. The use of solar dryer helps to reduce the moisture content and improves the quality product. Drying treatment and experimental method for solar drying was carried out at the temperatures of 45°C, 55°C and 65°C to find and suggest the optimum drying condition for acquiring quality dried basil leaves and active ingredient like uginol, caryophyll of basil leaves. Results have revealed that ‘total drying time’ is considerably reduced with the increase in drying air temperatures from 45°C to 65°C. It could be recommended that for the best drying temperature is 45°C of basil leaves to retain the various active ingredient.

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