低温破壁法与溶剂浸出法制备米糠油研究  

Study on rice bran oil extraction by cold pressed extraction method and solvent extraction method

作　　者：张金建[1] 唐思煜 赵优萍 崔艳丽[2] 毛建卫[1,3,4] ZHANG Jinjian TANG Siyu ZHAO Youping CUI Yanli MAO Jianwei(School of Biological and Chemical Engineering,Zhejiang University of Science and Technology, Hangzhou 310023, China School of Science, Zhejiang University, Hangzhou 310027, China Zhejiang Provincial Key Laboratory for Chemical and Biological Processing Technology of Farm Produce, Hangzhou 310023, China Zhejiang Collaborative Innovation Center of Chemical and Biological Manufacturing for Agricultural Biological Resources, Hangzhou 310023, China)

机构地区：[1]浙江科技学院生物与化学工程学院,杭州310023 [2]浙江大学理学院,杭州310027 [3]浙江省农产品化学与生物加工技术重点实验室,杭州310023 [4]浙江省农业生物资源生化制造协同创新中心,杭州310023

出　　处：《浙江科技学院学报》2016年第6期450-455,共6页Journal of Zhejiang University of Science and Technology

基　　金：国家国际科技合作项目(2010DFA34370);国家自然科学基金项目(30870553);浙江省重点研发计划项目(2015C02031);浙江省国际科技合作专项项目(2013C14012)

摘　　要：比较了用正己烷浸提、无水乙醇浸提及低温破壁压榨3种方法对米糠油提取率的影响,分析了所得米糠油的理化特性,并采用气相色谱-质谱法(GC-MS)测定了米糠油中的主要成分及相对质量分数。研究结果表明,用低温破壁法提取的米糠油中酸值和过氧化值较低;GC-MS分析表明,3种方法提取的米糠油中主要含有十六烷酸(棕榈酸)、十八碳二烯酸(亚油酸)和十八碳烯酸(油酸)3种脂肪酸,其中3种提取法的棕榈酸质量分数依次为24.30%、0.26%、28.50%,亚油酸质量分数依次为39.00%、10.78%、36.00%,油酸质量分数依次为31.40%、87.16%、14.10%,其余成分质量分数依次为5.3%、1.8%、21.4%。The extraction rates of rice bran oil by n-hexane extraction, ethanol extraction and cold pressed extraction methods were compared and the physical and chemical properties of the three extracted oils were analyzed. The gas chromatography-mass spectrometry （GC-MS） method was used to determine the main compositions and relative percentage of the three extractedrice bran oils. The results showed that the bran oil extracted by cold pressed extraction method have low acid value and peroxide value; GC-MS analysis indicated that there are mainly three kinds of fatty acids, i. e. hexadecanoic acid, octadecadienoic acid and octadecenoic acid in rice bran oil extracted by the three methods. The exadecanoic acid contents are of 24.30%, 0.26% and 28.50%, respectively in the bran oils extracted by n-hexane extraction, ethanol extraction and cold pressed extraction methods, respectively. And the octadecadienoic acid contents are of 39.00%, 10.78% and 36. 00% , while the octadecenoic acid contents are of 31.40%, 87.16%, 14.10% and the other components are of 5.3%, 1.8% and 21.4%, respectively.

关 键 词：米糠油 提取工艺 理化性质 脂肪酸组成 

分 类 号：TS210.9[轻工技术与工程—粮食、油脂及植物蛋白工程] TS225.19[轻工技术与工程—食品科学与工程]