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Tracking (Poly)phenol components from raspberries in ileal fluid.

Gordon J McDougall1, Sean Conner, Gema Pereira-Caro

  • 1Enhancing Crop Productivity and Utilisation Theme, Environmental and Biochemical Sciences Group, The James Hutton Institute , Invergowrie, Dundee DD2 5DA, Scotland.

Journal of Agricultural and Food Chemistry
|July 8, 2014
PubMed
Summary
This summary is machine-generated.

Raspberry polyphenols, including anthocyanins and ellagitannins, were analyzed in ileal fluid. Novel metabolites were identified, suggesting gut metabolism and potential health benefits in the large bowel.

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Area of Science:

  • Food Science
  • Nutritional Biochemistry
  • Metabolomics

Background:

  • Raspberries are rich in polyphenols like anthocyanins and ellagitannins.
  • Understanding polyphenol metabolism in the human gut is crucial for health benefits.

Purpose of the Study:

  • To analyze (poly)phenols in ileal fluid after raspberry ingestion.
  • To identify major and novel raspberry-specific metabolites using advanced LC-MS(n) techniques.

Main Methods:

  • Targeted and nontargeted liquid chromatography-mass spectrometry (LC-MS(n)) approaches.
  • Utilized an orbitrap mass spectrometer for high-resolution mass data.
  • Employed software to analyze significant metabolite changes post-supplementation.

Main Results:

  • Identified major anthocyanin and ellagitannin components with significant interindividual variation.
  • Confirmed recovery of targeted compounds and discovered novel raspberry metabolites.
  • Detected potential ellagitannin and proanthocyanidin derivatives from intact seeds, alongside breakdown products and absorbed metabolites.

Conclusions:

  • Raspberry ingestion leads to diverse polyphenol metabolites in ileal fluid.
  • Metabolites originate from direct recovery, seed components, and host/gut microbial metabolism.
  • Further research is warranted to explore the physiological roles of these ileal metabolites in the large bowel.