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Optimization of the High-Pressure Condition for Rice Protein Extracting Using Response Surface Methodology (RSM)

한국식생활문화학회지 2019년 34권 6호 p.779 ~ 784
라하나 ( Ra Ha-Na ) - 농촌진흥청 국립농업과학원 농식품자원부

박사라 ( Park Sa-Ra ) - 농촌진흥청 국립농업과학원 농식품자원부
김하윤 ( Kim Ha-Yun ) - 농촌진흥청 국립농업과학원 농식품자원부
조용식 ( Cho Yong-Sik ) - 농촌진흥청 국립농업과학원 농식품자원부
김경미 ( Kim Kyung-Mi ) - 농촌진흥청 국립농업과학원 농식품자원부

Abstract


The purpose of this study was to optimize the rice protein extracted using a response surface methodology. Theexperiment was designed based on a CCD (Central Composite Design), and the independent variables were the highpressure (X1, 0-400 MPa) and processing time (X2, 0-10 minutes). The results of the extraction content (Y1), residue content(Y2), and recovery yield (Y3) were fitted to a response surface methodology model (R2= 0.92, 0.92, and 0.93, respectively).
Increasing the pressure and processing time has a positive effect on the extraction content (Y1), residue content (Y2), andrecovery yield (Y3). Therefore, these high-pressure conditions (independent variables) can significantly affect theimprovement in rice protein extraction efficiency. Thus, the optimal conditions of X1 and X2 were 400 MPa and 10 min.,respectively. Under these optimal conditions, the predicted values of Y1, Y2, and Y3 were 62.93, 57.53 mg/g, and 91.76%,respectively.

키워드

Response surface methodology (RSM); optimal condition; extracting; rice protein
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