牛奶中omega-3不饱和脂肪酸的LC-MS测定方法研究

北京理工大学珠海学院2020届本科生毕业论文Study on LC-MS/MS Determination Method of Omega-3Unsaturated Fatty Acids in MilkAbstractIn the era of booming dairy industry,consumers choose to buy products,People began topay attention to the nutritional components of milk.And omega-3pufa is an importantindicator of the quality evaluation of milk and dairy products,some producers.PUFA additiveadded to milk to distinguish their products.Considering the development prospect ofdomestic dairy industry,We need to establish analytical methods to find the low content ofgrade unsaturated fatty acids,Adapt to market changes.Gas chromatography Existingnational milk standards do not allow simultaneous detection of ala,DHA,DPA,EPA,or 2.When testing,it is necessary to analyze the unsaturated high-temperature fatty acids,whichmay have some effects;This complicates the process for a long time and may lead tounderestimation of the results,while GC-MS samples also have a long time in the machine.This study developed an experimental method(EPA)liquid phase.This study is based on a document study,As a result,eight different preprocessingmethods were compared and the most appropriate one was selected,depending on the specificsituation of the parties involved.From the characteristics of the sample itself.7 hot milkdrinks,including Erie,McClair,Montal and other 7 products,The content of four maincomponents of many unsaturated omega-3 fatty acids is analyzed to analyze the content ofmilk beverage in omega-3pufa market,Adapt to market changes and promote the healthydevelopment of dairy industry.Keywords:milk;ALA(a-Linolenic acid);EPA(Eicosapentaenoic acid);DHA(Docosahexaenoic acid);DPA(Docosapentaenoic acid);content of @-3PUFAs;LC-MS/MSmethod