CAJ | 학술논문

以南瓜籽为原料,通过先冷榨,冷榨饼再经酶解后复榨制取南瓜籽油. 以出油效率为指标,通过单因素实验确定的最佳酶解条件为酶解温度50℃、酶解pH 7. 0、酶用量2. 0%、酶解时间4. 5 h.在最佳酶解条件下进行酶解,出油效率达72 . 6%. 以亚油酸含量为响应值,通过响应面优化确定的复榨过程最佳工艺参数为物料含水量7. 0%、榨膛温度76℃、榨膛压力3. 5 MPa,在最佳工艺参数下得到的南瓜籽油中亚油酸含量为38 . 02%.
이남과자위원료,통과선랭자,랭자병재경매해후복자제취남과자유. 이출유효솔위지표,통과단인소실험학정적최가매해조건위매해온도50℃、매해pH 7. 0、매용량2. 0%、매해시간4. 5 h.재최가매해조건하진행매해,출유효솔체72 . 6%. 이아유산함량위향응치,통과향응면우화학정적복자과정최가공예삼수위물료함수량7. 0%、자당온도76℃、자당압력3. 5 MPa,재최가공예삼수하득도적남과자유중아유산함량위38 . 02%.
With pumpkin seed as raw material,pumpkin seed oil was obtained by cold pressing,enzymatic hydrolysis and repressing of cold pressed cake. With oil yield as indicator,the optimal enzymatic hydroly-sis conditions were determined by single factor experiment as follows:enzymatic hydrolysis temperature 50℃,enzymatic hydrolysis pH 7. 0,enzyme dosage 2. 0% and enzymatic hydrolysis time 4. 5 h. Under these conditions,the oil yield reached 72. 6%. With linoleic acid content as response value, the repressing process parameters were optimized by response surface methodology as follows:moisture content of mate-rial 7. 0%,pressing chamber temperature 76℃ and pressing chamber pressure 3. 5 MPa. Under these conditions,the linoleic acid content of pumpkin seed oil was 38. 02%.