微波预处理-压榨法提取马油工艺研究

Study on the extraction process of horse oil by microwave pretreatment-pressing method

以马油得率为指标,采用单因素试验和正交试验对微波预处理-压榨法提取马油的工艺进行优化,并探讨微波预处理对马油酸价、过氧化值和脂肪酸组成的影响。结果表明:最佳工艺条件为微波功率560 W、微波温度110℃、微波时间18 min、压榨时间25 s,在此条件下马油得率为75.8%,酸价和过氧化值分别为4.2 mg/g、0.79 g/100g。改变微波条件对马油的酸价和脂肪酸组成无明显影响,但对过氧化值有较大影响。

Using the yield of horse oil as indicator,single factor experiment and orthogonal experiment were used to optimize the microwave pretreatment-pressing extraction process of horse oil,and the effect of microwave pretreatment on the acid value,peroxide value and fatty acid composition of horse oil were evaluated.The results showed that the optimal process conditions were microwave power 560 W,microwave temperature 110℃,microwave time 18 min,and pressing time 25 s.Under the conditions,the yield of horse oil was 75.8%,and the acid value and peroxide value were 4.2 mg/g and 0.79 g/100 g,respectively.The change of microwave conditions had no obvious effect on acid value and fatty acid composition of horse oil,but had great effect on peroxide value.