CAJ | 학술논문

以牡丹籽为原料,利用超临界CO_2萃取提取牡丹籽油.采用单因素试验对影响牡丹籽油得率的5个影响因素(筛分粒度、CO_2流量、压力、温度和时间)进行考察.以油得率为响应目标,对3个主要影响因素(筛分粒度、压力和温度)运用中心复合设计法,并经响应面法优化分析得到二次多项式回归方程预测模型,确定了超临界C_O2萃取牡丹籽油的最佳条件为:筛分粒度60目,CO_2流量20L/h,压力35MPa,温度45℃,时间120min.在较优提取条件下,牡丹籽油得率可达到24.22%.GC-MS结果表明牡丹籽油中富含不饱和脂肪酸,其中亚油酸和亚麻酸的含量分别为23.34%和66.85%.
이모단자위원료,이용초림계CO_2췌취제취모단자유.채용단인소시험대영향모단자유득솔적5개영향인소(사분립도、CO_2류량、압력、온도화시간)진행고찰.이유득솔위향응목표,대3개주요영향인소(사분립도、압력화온도)운용중심복합설계법,병경향응면법우화분석득도이차다항식회귀방정예측모형,학정료초림계C_O2췌취모단자유적최가조건위:사분립도60목,CO_2류량20L/h,압력35MPa,온도45℃,시간120min.재교우제취조건하,모단자유득솔가체도24.22%.GC-MS결과표명모단자유중부함불포화지방산,기중아유산화아마산적함량분별위23.34%화66.85%.
Based on the single factor test, the effects of particle size, SC CO_2 flow rate, pressure, and temperature, extraction time on oil extraction yield were investigated. As a result, three independent variables, such as particle size, pressure, and temperature, have significant effects on the oil yield. A three-factor and five-level second-order regression for central composite experimental design was employed to study the response, and the interaction of the factors on the oil yield was also investigated. By the analysis of response surface, a polynomial regression equation was obtained, to gain the optimal conditions of SC CO_2 extraction followed as, particle size of 60 mesh, CO_2 flow rate of 20L/h, extraction pressure of 35MPa, temperature of 45℃, and time of 120min. In the aboved condition, the experimental yield of the Paeonia suffruticosa Andr. seed oil is 24.22%. GC-MS analysis shows that the extracted oil is abundant in unsaturated fatty acid with the majority of the components as linoleic acid (23.34%) and linolenic acid (66.85%).