用于水酶法提油的油菜籽挤压预处理参数优化  

Extrusion Pretreatment Parameter Optimization of Rapeseed Used as Raw Material of Extracting Oil by Aqueous Enzymatic Method

作　　者：凌闽 李琳何 范方舒 吴卫国[1,2] 邱展英 张喻 Ling Min;Li Linhe;Fan Fangshu;Wu Weiguo;Qiu Zhanying;Zhang Yu(College of Food Science and Technology,Hunan Agricultural University,Changsha 410128;Engineering Center of Rapeseed Oil Nutrition Health and In-depth Development of Hunan Province,Changsha 410128)

机构地区：[1]湖南农业大学食品科学技术学院,长沙410128 [2]湖南省菜籽油营养健康与深度开发工程技术研究中心,长沙410128

出　　处：《中国粮油学报》2022年第5期116-122,共7页Journal of the Chinese Cereals and Oils Association

基　　金：湖南省大学生创新创业训练计划(湘教通〔2020〕191号);湖南省油菜产业技术体系产品加工岗位专家项目(湘财农指2020112号)。

摘　　要：为提高水酶法提菜籽油的得率,对油菜籽进行挤压预处理,以提油率为考察指标,研究套筒温度、喂料量、螺杆转速、物料加水量对提油效果的影响。在单因素实验的基础上进行正交优化实验,确定挤压辅助水酶法提取菜籽油的最佳挤压参数。结果表明:4个因素对提油率影响的大小顺序为:套筒温度>喂料量>物料加水量>螺杆转速;最佳挤压参数为套筒温度90℃、喂料量12 kg/h、螺杆转速210 r/min、物料加水量10%。经此挤压参数处理后的油菜籽,用水酶法提油时清油的提取率可达80.834%。In order to improve the oil yield,extrusion pretreatment was employed for rapeseed before extracting oil by aqueous enzymatic method.The effects of barrel temperature,feed rate,screw speed and water addition were studied.Based on single factor experiments,the optimum extrusion parameters were determined by orthogonal test.The results indicatedthat the degrees of extrusion parameters on the oil yield were barrel temperature>feed rate>water addition>screw speed,the optimum extrusion parameters were as follows:barrel temperature of 90℃,feed rate of 12 kg/h,screw speed of 210 r/min,water addition of 10%.Under these conditions,the yield of free oil can reach 80.834%.

关 键 词：油菜籽 挤压预处理 优化 水酶法 提油率 

分 类 号：TS224.3[轻工技术与工程—粮食、油脂及植物蛋白工程]