Study2011

Bioavailability of phenols from a phenol-enriched olive oil

Suárez M, Valls RM, Romero MP, Macià A, Fernández S, Giralt M, Solà R, Motilva MJ, Motilva MJ

The British journal of nutrition · 74 citations

Review labels

Controlled feeding

Neutral facts our review recorded about how this study was done. They describe method, never whether we like the result.

How it was studied

Design
Randomized controlled trial (classified by our AI screen)
Studied in
People
Main outcome
No health outcome
Intake measured by
Food provided by researchers

Who paid for it

Funding
Independent funding
University or hospital
Centro de Investigación Biomédica en Red Diabetes y Enfermedades Metabólicas Asociadas

Based on 1 listed funder(s).

Publication

Published
2011-06-21 · Br J Nutr · vol. 106 · issue 11 · pp. 1691–1701
Publisher
Cambridge University Press
Cited
97 citations · more than 93% of similar papers · 3.8× the field average
Impact
Top 10% most cited in its field
References
32 works
Access
Free to read
Research areas
Edible Oils Quality and Analysis · Antioxidant Activity and Oxidative Stress · Phytochemicals and Antioxidant Activities
Keywords
Hydroxytyrosol, Bioavailability, Chemistry, Olive oil, Phenols, Food science, Phenol, Ingestion, Tyrosol, Absorption (acoustics), Chromatography, Polyphenol, Biochemistry, Biology, Antioxidant, Organic chemistry, Pharmacology
MeSH
humans, phenols, plant oils, biological availability, adult, aged, middle aged, female, male, olive oil

8 authors

From ES

  • Manuel SuárezUniversitat de Lleida
  • Rosa M. VallsInstitut de Recerca Biomèdica Catalunya Sud; Centro de Investigación Biomédica en Red; Hospital Universitari Sant Joan de Reus; Universitat Rovira i Virgili
  • María‐Paz RomeroUniversitat de Lleida
  • Alba MaciàUniversitat de Lleida
  • Sara Fernández‐CastillejoInstitut de Recerca Biomèdica Catalunya Sud; Centro de Investigación Biomédica en Red; Hospital Universitari Sant Joan de Reus; Universitat Rovira i Virgili
  • Montse GiraltInstitut de Recerca Biomèdica Catalunya Sud; Centro de Investigación Biomédica en Red; Hospital Universitari Sant Joan de Reus; Universitat Rovira i Virgili

Abstract

Phenolic compounds are one of the main reasons behind the healthy properties of virgin olive oil (VOO). However, their daily intake from VOO is low compared with that obtained from other phenolic sources. Therefore, the intake of VOO enriched with its own phenolic compounds could be of interest to increase the daily dose of these beneficial compounds. To evaluate the effectiveness of enrichment on their bioavailability, the concentration of phenolic compounds and their metabolites in human plasma (0, 60, 120, 240 and 300 min) from thirteen healthy volunteers (seven men and six women, aged 25 and 69 years) was determined after the ingestion of a single dose (30 ml) of either enriched virgin olive oil (EVOO) (961·17 mg/kg oil) or control VOO (288·89 mg/kg oil) in a cross-over study. Compared with VOO, EVOO increased plasma concentration of the phenol metabolites, particularly hydroxytyrosol sulphate and vanillin sulphate (P < 0·05). After the consumption of VOO, the maximum concentration of these peaks was reached at 60 min, while EVOO shifted this maximum to 120 min. Despite these differences, the wide variability of results indicates that the absorption and metabolism of olive oil phenols are highly dependent on the individual.

Abstract via Europe PMC. Copyright remains with the authors or publisher.

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