COMPARISON STUDY OF ESSENTIAL OIL EXTRACTED FROM ETLINGERA ELATIOR (TORCH GINGER) BY USING SOXLET EXTRACTION

Abstract

Significance of essential oils from Etlingera elatior (E. elatior) are growing these days and have prospective to embrace great export in future, yet the quantity of the essential oil extracted does not extant in decent rate. Therefore the purpose of this research is to determine the optimum yield of the E. elatior essential oil. The E. elatior were prepared in two conditions which are normal (fresh) and dry grinded sample. The extraction of normal and dry grinded E. elatior was conducted using Soxhlet extraction with methanol as a solvent. The extraction process was conducted at different extraction time (2, 4, 6 hours). The study indicated that the dry grinded E. elatior produced a higher yield of essential oil as compared to normal grinded E. elatior. The yield of essential oil obtained from dry grinded E. elatior was 71.44% while with normal grinded E. elatior, the yield

was 56.42%. The effect of extraction time towards yield of essential oil shown that prolong extraction up to 6 hours gave a higher yield of E. elatior essential oil. The constituents in the E. elatior essential oil were determined and quantified using GC-MS analysis. The analysis indicated that the E. elatior essential consist of 2-Furaldehyde, 5- methyl, 3-Methyl-1,2-cyclopentanedione, Maple lactone, Furan-2,5-dial, Pyranone and 5-Hydroxymethyl furaldehyde.