低温协同超高压脲包法分离大豆油脱臭馏出物中饱和脂肪酸工艺研究  

Detachment Technology of Saturated Fatty Acids in Distillates from Soybean Oil by the Ultra-high Pressure & Urea Adduction Method Joint with Hypothermia

作　　者：袁野[1] 潘见[1] 孙艳辉[1] 徐金凤[1] 赵斌[1] 谢慧明[1] 

机构地区：[1]合肥工业大学农产品生物化工教育部工程研究中心,安徽合肥230009

出　　处：《安徽农业科学》2014年第3期882-885,共4页Journal of Anhui Agricultural Sciences

基　　金：安徽省科技厅农产品加工中试系统与关键技术装备研究科技计划项目(2011AKKG1121)

摘　　要：[目的]从大豆油脱臭馏出物中高效分离出饱和脂肪酸。[方法]试验采用低温协同超高压脲包法,以棕榈酸乙酯的残留率和质量为主要考察指标,通过单因素试验考察了冷藏温度、冷藏时间和超高压处理压力3个因素对分离效果的影响,并以正交试验法对该工艺进行了优化。[结果]试验表明,低温协同超高压脲包法分离大豆油脱臭馏出物的最佳工艺条件为冷藏温度4℃,冷藏时间90 min,压力300 MPa。在此条件下,棕榈酸乙酯的残留率为21.87%,质量从137.31 g减少到30.03 g。[结论]经过低温冷藏处理后,采用超高压脲包法可有效分离出大豆油馏出物中的饱和脂肪酸,为进一步的分离纯化创造了良好条件。[ Objective ] To separate saturated fatty acids in distillates from soybean oil efficiently. [ Method ] In this experiment, by taking the residual rate and quality of ethyl palmitate as the main investigation indexes, using the method of ultra-high pressure ＆ urea adduction joint with hypothermia, the detachment effects of three process factors named refrigerated temperature, refrigeration time and pressure were investi- gated, optimized by the orthogonal method. [ Result] The results of ultra-high pressure ＆ urea adduction joint with hypothermia showed that the optimum technological levels of the three parameters were as follows ： 4 ~C, 90 min, 300 MPa. Under these conditions, the residual rate of ethyl palmitate was 21.87%, along with the quality declining from 137.31 g to 30.03 g. [ Conclusion] After refrigeration, the ethyl palmi- tate could be separated efficaciously from the distillates of soybean oil, which made a favorable condition for further separation.

关 键 词：超高压脲包 低温协同 大豆油脱臭馏出物 正交试验 

分 类 号：S509.9[农业科学—作物学]