ArticleAntioxidants (Basel, Switzerland)2020
Extraction and Analysis by HPLC-DAD of Carotenoids in Human Faeces from Spanish Adults.
Article in Antioxidants (Basel, Switzerland), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
7 citing papers in PubMed, 15 citations in OpenAlex.
- Trial
- Carotenoids in the Context of the Mediterranean Dietary Pattern: From Food Matrix and Bioavailability to Biomarkers and Human Health.Antioxidants (Basel, Switzerland) · 2026Review
- Brazilian Biomes as Promising Resources of Rhodotorula Yeasts for the Biotechnological Production of Carotenoids.Chemistry & biodiversity · 2025Review
- Insights into the synthesis, engineering, and functions of microbial pigments inFrontiers in microbiology · 2024Review
- Article
- Assessment of Food Sources and the Intake of the Colourless Carotenoids Phytoene and Phytofluene in Spain.Nutrients · 2021Article
- Dietary and plasma carotenoids are positively associated with alpha diversity in the fecal microbiota of pregnant women.Journal of food science · 2021Article
Corrections and comments
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Authors and funding
6 authors at 3 institutions in 1 country.
Funding
Abstract
Carotenoids are bioactive compounds with widely accepted health benefits. Their quantification in human faeces can be a useful non-invasive approach to assess their bioavailability. Identification and quantification of major dietary carotenoids in human faeces was the aim of the present study. Faeces and dietary intake were obtained from 101 healthy adults (45-65 years). Carotenoid concentrations were determined by HPLC in faeces and by 3-day food records in dietary intake. Carotenoids quantified in faeces (µg/g dry weight, median) were: β-carotene (39.5), lycopene (20), lutein (17.5), phytoene (11.4), zeaxanthin (6.3), β-cryptoxanthin (4.5), phytofluene (2.9). α-carotene (5.3) and violaxanthin were found 75.5% and 7.1% of the faeces. The carotenoids found in the highest concentrations corresponded to the ones consumed in the greatest amounts (µg/d): lycopene (13,146), phytoene (2697), β-carotene (1812), lutein+zeaxanthin (1148). Carotenoid concentration in faeces and in dietary intake showed correlation for the total non-provitamin A carotenoids (r = 0.302;
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Registered trials
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