การหาสภาวะที่เหมาะสมของการสกัดน้ำมันจากเมล็ดมะละกอด้วยไมโครเวฟช่วยสกัด โดยใช้วิธีพื้นผิวตอบสนอง OPTIMIZATION OF MICROWAVE-ASSISTED EXTRACTION OF PAPAYA SEED OIL BY RESPONSE SURFACE METHODOLOGY
Keywords:
Oil Extraction, Papaya Seed, Microwave-Assisted Extractio, Response Surface MethodologyAbstract
The purpose of this research was to optimize the condition for oil extraction from papaya seed by microwave-assisted extraction (MAE) was carried out using response surface methodology (RSM) with central composite design (CCD) to achieve the highest extraction efficiency and reduce energy consumption. The three independent variables were extraction time (X1), microwave power (X2) and papaya seed to solvent ratio (X3). The dependent (response) variable was oil extraction yield. Twenty experiments were performed according to the design. It was predicted that the optimum extraction conditions were extraction time of 2.32 minute, microwave power of 800 watts and papaya seed to solvent ratio of 7%, which resulted in an oil extraction yield of 28%. The coefficients of determination were found to be very high (R2 = 0.974). Comparison of the experimental values with those of the predicted values was consistent. The accuracy of model predictions was 86.2%. Hence, the regression model derived from the experimental data adequately described the correlation among the three independent variables studied and provided accurate prediction of the papaya seed oil yield obtained by MAE.
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