南极磷虾油亚临界萃取工艺优化及挥发性成分分析  

Optimization of sub-critical extraction of krill oil and the volatile components

作　　者：孙德伟 谢强[1] 李进伟[2,3,4] 刘元法 SUN De-wei;XIE Qiang;LI Jin-wei;LIU Yuan-fa(Wuxi Vocational Institute of Commerce,Wuxi,Jiangsu 214153,China;State Key Laboratory of Food Science and Technology,Jiangnan University,Wuxi,Jiangsu 214122,China;Synergetic Innovation Center of Food Safety and Nutrition,Jiangnan University,Wuxi,Jiangsu 214122,China;School of Food Science and Technology,Jiangnan University,Wuxi,Jiangsu 214122,China)

机构地区：[1]无锡商业职业技术学院,江苏无锡214153 [2]江南大学食品科学与技术国家重点实验室,江苏无锡214122 [3]江南大学食品安全与营养协同创新中心,江苏无锡214122 [4]江南大学食品学院,江苏无锡214122

出　　处：《食品与机械》2021年第10期144-149,共6页Food and Machinery

基　　金：无锡商业职业技术学院博士科研启动经费项目(编号:BSQDJF2019001);无锡商业职业技术学院省部级培育类(一般)项目(编号:KJXJ19602)。

摘　　要：目的:开发南极磷虾油的新制备方法。方法:以南极磷虾粉为原料,采用亚临界丁烷分离制备南极磷虾油,并优化其制备工艺;采用气相色谱质谱联用对新工艺制备的南极磷虾油挥发性成分进行检测。结果:南极磷虾油的最佳亚临界制备工艺条件为提取温度40℃,提取压力1.0 MPa,提取时间120 min,该条件下脂质提取率为(81.2±0.4)%,该南极磷虾油挥发性物质中几乎不含不饱和环烃类和萜类,主要含有2-癸烯醛、11-烯醛、癸酸等27种挥发性成分。结论:南极磷虾油中挥发性成分可作为南极磷虾油真伪鉴定的一个特征性指标。Objective:Antarctic krill lipids are rich in omega-3 polyunsaturated fatty acids ω-3 PUFA,mainly,EPA and DHA,phospholipids(PL),as well as natural antioxidants,such as astaxanthin,and they have important physiological functions.It is of practical value to develop a new preparation method of Antarctic krill oil and further study its volatile components.Methods:The optimum conditions of the subcritical butane extraction were determined based on the response surface methodology(RSM).Gas chromatography-mass spectrometry(GC-MS)was used to determine the volatile components of krill oil prepared by a new process.Results:Referring to the actual operation procedure,the optimum conditions were fixed as follows:temperature of 40℃,pressure 1.0 MPa,dynamic extraction time 120 min,and the lipid extraction yield was(81.2±0.4)%;The volatile components of the krill oil were analyzed,with few unsaturated cyclic hydrocarbons or steroids found,and the main 27 active components were found,including 2-decenal,11-enal,and decanoic acid,etc.Conclusion:The volatile components features in antarctic krill oil are not as stable as the fatty acids features,and they can also be used as a characteristic index to identify the authenticity of Antarctic krill oil.

关 键 词：南极磷虾油 亚临界萃取 挥发性成分 

分 类 号：TS225.24[轻工技术与工程—粮食、油脂及植物蛋白工程] O657.63[轻工技术与工程—食品科学与工程]