CAJ | 학술논문

采用四因素三水平正交试验方案对超临界CO_2流体萃取蚕蛹油脂的工艺参数进行研究,考察温度、压力、CO_2流量和分离Ⅰ压力等参数对油脂萃取量的影响效果.结果表明:萃取压力30MPa、萃取温度40℃、CO_2流量25kg/h、分离Ⅰ压力9MPa为最佳参数组合,此条件下油脂萃取率可达30.53%,影响油脂萃取量的主要因素是压力.并对其脂肪酸组成及理化性质指标进行分析和测定,结果表明所得油样中游离脂肪酸较少,有害的过氧化值低、不饱和脂肪酸含量高、无臭味.
채용사인소삼수평정교시험방안대초림계CO_2류체췌취잠용유지적공예삼수진행연구,고찰온도、압력、CO_2류량화분리Ⅰ압력등삼수대유지췌취량적영향효과.결과표명:췌취압력30MPa、췌취온도40℃、CO_2류량25kg/h、분리Ⅰ압력9MPa위최가삼수조합,차조건하유지췌취솔가체30.53%,영향유지췌취량적주요인소시압력.병대기지방산조성급이화성질지표진행분석화측정,결과표명소득유양중유리지방산교소,유해적과양화치저、불포화지방산함량고、무취미.
The technical parameters in supercritical fluid extraction of silkworm pupa oil were optimized by conducting an orthogonal L_9(3)~4 test. Effects of operating conditions on the extraction yield were investigated, including extraction temperature, pressure, CO_2 flow rate and pressure of the first separation. The optimum conditions for supercritical fluid extraction were as follows: extraction temperature 40 ℃, pressure 30 MPa, CO_2 flow rata 25 kg/h and pressure of the first separation 9 MPa. Under such conditions, the extraction yield of silkworm pupa oil reached 30.53%. The extraction yield was mainly influenced by pressure. In the following, the composition of fatty acid and the physical and chemical characteristics of silkworm pupa oil were determined.