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Quercetin and Egg Metallome.

Evangelos Zoidis1, Athanasios C Pappas1, Michael Goliomytis2

  • 1Laboratory of Nutritional Physiology and Feeding, Department of Animal Science, Agricultural University of Athens, 11855 Athens, Greece.

Antioxidants (Basel, Switzerland)
|January 13, 2021
PubMed
Summary
This summary is machine-generated.

Dietary quercetin supplementation significantly altered the egg metallome in laying hens. This natural flavonoid changed concentrations of various elements in eggshell, albumen, and yolk, suggesting potential for customized egg production.

Keywords:
eggflavonoidsinductively coupled plasma mass spectrometry (ICP-MS)metallomequercetin

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Area of Science:

  • Animal Nutrition
  • Trace Element Metabolism
  • Food Chemistry

Background:

  • Dietary supplementation is a common practice to enhance animal product quality.
  • Flavonoids, like quercetin, are natural compounds with potential health benefits.
  • Understanding the impact of feed additives on the elemental composition of eggs is crucial for nutritional science.

Purpose of the Study:

  • To investigate the effects of quercetin dietary supplementation on the elemental composition (metallome) of eggs from laying hens.
  • To apply elemental metabolomics principles to analyze changes in egg components.

Main Methods:

  • 192 laying hens were divided into four groups: control and three quercetin-supplemented groups (200, 400, 800 mg/kg feed).
  • Supplementation lasted for 28 days with consistent vitamin and mineral premixes across all groups.
  • Egg elemental profiles were analyzed using inductively coupled plasma mass spectrometry (ICP-MS).

Main Results:

  • Quercetin supplementation altered the elemental profile of eggs, particularly in the eggshell and albumen.
  • Specific changes included increased antimony (Sb) and decreased chromium (Cr) and selenium (Se) in both eggshell and albumen.
  • Quercetin also affected levels of arsenic (As), cadmium (Cd), vanadium (V), calcium (Ca), iron (Fe), magnesium (Mg), and nickel (Ni) in different egg compartments.

Conclusions:

  • Quercetin supplementation leads to differential deposition of trace minerals within egg compartments.
  • These findings suggest the possibility of creating eggs with tailored nutritional and health properties through targeted dietary interventions.