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Carotenoid bioavailability and bioconversion.

Kyung-Jin Yeum1, Robert M Russell

  • 1Jean Mayer USDA-Human Nutrition Research Center on Aging at Tufts University, Boston, Massachusetts 02111, USA.

Annual Review of Nutrition
|June 11, 2002
PubMed
Summary
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Carotenoid bioavailability and disease prevention roles are complex due to absorption and breakdown factors. Advanced methods and enzyme identification are improving our understanding of carotenoid functions.

Area of Science:

  • Nutrition Science
  • Biochemistry
  • Molecular Biology

Background:

  • The role of carotenoids and their metabolites in disease prevention remains incompletely understood.
  • Carotenoid bioavailability is influenced by numerous factors affecting absorption, metabolism, transport, and storage.
  • Understanding these processes is crucial for harnessing the full health potential of carotenoids.

Purpose of the Study:

  • To review the current understanding of carotenoid bioavailability and its impact on disease prevention.
  • To discuss the molecular mechanisms underlying carotenoid breakdown and function.
  • To highlight advancements in methodologies for assessing carotenoid status and activity.

Main Methods:

  • Review of scientific literature on carotenoid metabolism and bioavailability.

Related Experiment Videos

  • Discussion of advanced analytical techniques, including stable-isotope dilution methods.
  • Exploration of recent findings on enzymes involved in carotenoid breakdown.

    • Main Results:

    • Sophisticated methodologies now enable accurate determination of provitamin A carotenoid activity.
    • Identification of specific enzymes provides insights into carotenoid breakdown pathways at the molecular level.
    • Multiple factors significantly influence carotenoid bioavailability, including carotenoid type, food matrix, and host factors.

    Conclusions:

    • A comprehensive understanding of carotenoid bioavailability is essential for their role in disease prevention.
    • Ongoing research into enzymatic pathways and advanced analytical methods is key to elucidating carotenoid functions.
    • Factors such as diet, aging, and infection critically modulate carotenoid status and efficacy.