The Effect of Heating Temperature on Flow rate and Moisture Content in Granules of Toxic Compound in the Mixture of Betel Leaves (Piper betle) and Srikaya Seeds (Annona squamosa) Extract

Abstract

Dengue fever is a challenge that has to be overcome by Indonesian strategically, nationally, focus and comprehensive. A new product of toxic compounds granules from mixture of Piper betle extract and Annona squamosa extract is very promising as a new alternative bio-insecticide to eradicate Aedes aegypti mosquito larvae. The advantage of granule extract has brought a number of new trends in terms of formula composition and dosage. Granules can kill 95% Aedes aegypti mosquito larvae with 1 g of dosage in 10 liters of water within 105 minutes. The purpose of this research is to analyze the effect of heating temperature on flow rate and moisture content of granular. This is laboratory based study which examines the effect of heating temperature (40°C, 50°C, and 55°C) to granular flow rate and humidity of 100 gr granules. The result showed that there were effect on flow rate and moisture content of mixed granular due to the difference of temperature. Heating temperature would affect the granular humidity; when heating temperature was low, the granular humidity would be high since the water contained in granular is less evaporated and result in higher granular cohesiveness which causing stronger granular friction and slower flow rate.