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利用离子液体毛细体柱和GC×GC-MS用于人类乳牛奶样本中的脂肪酸分析

Fernanda Furlan Goncalves Dias^1,2, Stanislau Bogusz³, Racire Sampaio Silva⁴

¹Institute of Chemistry, University of Campinas (Unicamp), Campinas, São Paulo, Brazil.

Analytical and bioanalytical chemistry

|November 4, 2023

概括

使用离子液体柱和先进气体染色学,优化了人乳中的脂肪酸概况. 这种方法增强了检测和分离,揭示了分娩方式如何影响婴儿营养.

科学领域:

分析化学分析化学
利皮多米克 (Lipidomics) 是一种消化剂.
人类营养人类营养

背景情况:

人类胆乳脂对婴儿能量和必需脂肪酸至关重要.
大奶粉的脂肪酸成分是可变的,难以分析.
准确的分析对了解婴儿营养和健康至关重要.

研究的目的:

为了优化离子液体 (IL) 列,使用流量调制的全面二维气体染色学与质谱学 (FM-GC × GC-MS) 结合,用于人乳牛奶脂肪酸分析.
改进衍生策略和评估不同的1D列阶段,以加强分离.
通过调查新生儿分娩方式对乳母脂肪酸概况的影响来证明该方法的实用性.

主要方法:

使用甲氧化来优化衍生产,以改善恢复和缩短时间.
对脂肪酸甲基 (FAME) 分离的各种1D列相 (Solgel-WAX,SLB-IL60i,SLB-IL76i,SLB-IL111i) 的评估.
应用优化的FM-GC × GC-MS与IL60列用于分析人类胆乳样本.

主要成果:

在较温和的条件下,氧化物衍生实现了90%的回收.
SLB-IL60i柱提供了卓越的分离,峰值形状和化空间利用.
开发的方法成功地根据新生儿分娩方式 (阴道 vs 剖腹产) 区分了脂肪酸配置文件.

结论:

优化的FM-GC×GC-MS方法与IL列增强脂肪酸检测和分离在复杂的人类胆乳样本.
这种技术是研究影响乳酪脂脂肪酸成分的因素的宝贵工具.
了解这些变化是优化婴儿营养和健康结果的关键.

关键词:

综合性的二维气体染色学.脂肪酸甲基 Ester 是一种脂肪酸甲基.人类大乳牛奶是人类的大乳牛奶.利皮多米克 (Lipidomics) 是一种消化剂.

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