Abstract
Cinnamon oleoresin can be produced from the solvent extraction of cinnamon (Cinnamomum burmannii) bark. Among many extraction method, Microwave Assisted Extraction (MAE) is one method that gives many advantages, especially in reducing the extraction time. This research will compare the kinetic models of MAE extraction process, using first and second order model. Extraction were carried out from 5 to 40 minutes with eight cycles and analyzed its oleoresin content. For comparison, soxhlet extraction method was also done for 1 and 4 hours. From the analysis, it was shown that the second order kinetic model was more suitable to explain the MAE of cinnamon oleoresin. The 40 minutes MAE process gave 9.55 g L−1 oleoresin, while soxhlet extraction gave 3.76 g L−1 and 9.48 g L−1 oleoresin in 1 and 4 hours respectively. SEM analysis for both of MAE and soxhlet treated samples showed the rupture of the cell and therefore caused the release of cell content. The cell structure in 35 min-MAE treated sample was more opened than the 1 hr-soxhlet treated one. It means that the cell rupture in MAE process was quicker than the soxhlet, and it produced the high yield in shorter time.
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