定量食品化合物使饮食本体学能够在500种食物和人体血中进行引用
Julius Agongo1,2, Harsha Gouda1,2, Aubreyana McMaugh1,2
1Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, California 92093, United States.
Analytical chemistry
|January 19, 2026
概括
一种新的液体染色学-并联质谱法 (LC-MS/MS) 方法准确量化了各种食品和人体血中的102种食物化合物. 这种饮食评估工具将食物分子与健康结果联系起来.
科学领域:
- 营养科学 营养科学
- 代谢学 代谢学 代谢学
- 食品化学 食品化学
背景情况:
- 饮食评估的准确性对于临床和营养研究至关重要.
- 现有方法在可重复性和精度方面面临挑战.
- 在复杂矩阵中量化特定的食物化合物是很困难的.
研究的目的:
- 开发和验证液体染色学-并联质谱法 (LC-MS/MS) 方法,以绝对量化食品化合物.
- 评估该方法在各种食品类型和人体血样本中的性能.
- 在临床研究中应用客观的,基于化学的饮食摄入量评估方法.
主要方法:
- 开发了一种经过验证的LC-MS/MS测定,用于200种经过文献精选的食品化合物.
- 使用外部矩阵匹配校准和强有力的质量控制措施.
- 分析了500种食品提取物和人体血样本,采用多变量分析 (PLS-DA).
主要成果:
- 在各种食品类中成功量化了102种食品化合物,准确度高 (R2>0.99,CV <15%).
- 识别了具有强烈来源特异性的特定食品化合物 (例如,hesperidin,hypaphorine,piperine).
- 在炎症性肠道疾病队列中,血中的量化食物化合物与饮食摄入量之间的相关性被证明.
结论:
- 经过验证的LC-MS/MS工作流提供了一个强大的工具,用于食品化学和翻译饮食研究.
- 这种定量代谢学方法使客观的,基于化学的饮食评估成为可能.
- 该框架支持将食物分子映射到饮食暴露,以获得更好的临床见解.
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