XÂY DỰNG MÔ HÌNH CHIẾT XUẤT THÀNH PHẦN γ-ORYZANOL TRONG CÁM GẠO VIỆT NAM

Summary

γ-oryzanol compound is a phytochemical with antioxidant activity and potential health benefits. γ-oryzanol extraction with ethanol using maceration method accompanied by stirring has been optimized using response surface methodology (RSM) based on central composite rotatable design (CCRD). The experiment consisted of thirty units including six replicates of the center points. The data were analyzed using Design Expert 11 software to develop and evaluate models and to plot the response curve as 3D surfaces. The results showed that optimal conditions for extracting γ-oryzanol was as follows: ethanol/ rice bran ratio of 16.84 (mL/g); extraction temperature of 39.47 ºC; extraction time of 5.18 hours and ethanol concentration of 83.74 %.

Keywords: Phytochemical, γ-oryzanol, RSM, CCRD.

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