响应面法脱除玉米油中色素及蜡质工艺优化  

Optimization of Processing Conditions for Removal of Pigment and Wax from Corn Oil Using Response Surface Methodology

作　　者：张旭[1] 王玉琦[1] 张鲁[1] 张如春[1] 于殿宇[1] 王俊国[2] 赵岩 ZHANG Xu;WANG Yuqi;ZHANG Lu;ZHANG Ruchun;YU Dianyu;WANG Junguo;ZHAO Yan(College of Food Science, Northeast Agricultural University, Harbin 150030, China;Key Laboratory of Grain and Oil Processing of Jilin Province, Jilin Business and Technology College, Changchun 130507, China;Harbin Tiantong Agriculture Science and Technology Development Co. Ltd., Harbin 150056, China)

机构地区：[1]东北农业大学食品学院,黑龙江哈尔滨150030 [2]吉林工商学院粮油食品深加工吉林省高校重点实验室,吉林长春130507 [3]哈尔滨天通农业科技开发有限公司,黑龙江哈尔滨150056

出　　处：《食品科学》2017年第6期248-252,共5页Food Science

基　　金："十三五"国家重点研发计划重点专项(大豆油绿色制造关键技术及大型智能化装备研发与示范项目)(2016YD0401402);吉林省教育厅科学研究基金项目(2016125);2014年哈尔滨市应用技术研究与开发项目(复配型天然抗氧化剂应用于玉米油的技术应用)(2014DB3AN033)

摘　　要：以碱炼脱酸玉米油为原料,添加油脂质量1.2%的活性白土,脱色温度100℃,脱色时间0.5 h,将脱色后油脂降温,以吸附色素后的活性白土作为结晶的晶核,当搅拌速率13 r/min,脱蜡温度11℃,脱蜡时间13 h,经过滤分离得到色泽为黄19、红2.1,含蜡量为26.28?mg/kg的玉米油,将脱色后的活性白土保留在油脂中,替代脱蜡工序养晶过程的硅藻土助滤剂,简化了工艺过程,减少了0.5%硅藻土的吸油量,降低了生产成本。This study investigated the removal of pigment and wax from alkali-refined corn oil.The decolorization wascarried out by adding1.2%activated clay and stirring for0.5h at100℃,followed by dewaxing by allowing the crystalnucleus of activated clay to grow for13h after cooling down to11℃by stirring at13r/min.Purified corn oil with ayellowness value of19and a redness value of2.1containing26.28mg/kg wax was obtained after filtration.The purificationprocess was simplified by retention of activated clay in the oil after decolorization without addition of diatomite filter aidduring crystal growth for dewaxing.In addition,oil adsorption by diatomite was avoided,cutting down on the cost.

关 键 词：玉米油 活性白土 脱色 晶核 脱蜡 

分 类 号：TS224.6[轻工技术与工程—粮食、油脂及植物蛋白工程]