Effects of vacuum Far infrared towards Aquilaria subintegra leaves

In recently years, the applications of Far-infrared radiation (FIR) dryer in the condition of vacuum was significant in many especially in food technology and food processing sector. It is because there were reported that Far Infrared dryer leads to many advantages impacts such as higher drying rates and yields the dried product of better quality. In this work, the effect of vacuum far infrared radiation drying towards Aquilaria Subintegra leaves was investigated. Aquilaria Subintegra leaves with an initial weight of 50g were dried at various temperatures (40, 50 and 60oC) for 4 hours of drying time and the VFIR were set to -200 Mbar to apply vacuum condition. The results revealed that the temperature of VFIR had significant effects on the drying kinetics and various qualities of the Subintegra leaves in terms of moisture content analysis. Then, the dried sample were grinded and extracted to investigated the existence of active ingredients in sample which is acetaminophen. The extraction procedure were carried by using Soxhlet Extraction method which ethanol solution are used as a solvent. Lastly, the extracted sample were injected to High Performance Liquid Chromatography (HPLC) to analyze the compound contain. From the HPLC chromatogram result there were concluded that there were no detection of any antipyretic compound or active ingredients in the leaves.