Cited by 94Antioxidant Activity and Oxidative StressEdible Oils Quality and AnalysisPhytochemicals and Antioxidant Activities

Tocopherol measurement in edible products of vegetable origin

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Gómez-Coronado, Diego J.M., Ibañez, Elena, Rupérez, F. Javier, Barbas, Coral·2004·Journal of Chromatography A

Abstract

Since natural antioxidants present increasing interest for food industry due to their beneficial effect on health, new potential sources have been screened among edible aromatic plants and a microalgae, Spirulina platensis. The determination was performed after optimising a previously validated method, because important differences have been found among values described in literature for tocopherol content in products of vegetable origin. Values obtained ranged from 3.42 mg alpha-tocopherol/100 g of dill to 132.2 mg/100 g of fresh bay and from 0.14 mg gamma-tocopherol/100 g of spearmint to 3.45 mg/100 g of parsley. In all cases results were calculated from fresh leaves. Preliminary experiments were developed with bay (Laurus nobilis) plant to devise the supercritical fluid extraction of tocopherols, generating environmentally friendly processes to selectively extract fractions enriched with antioxidant compounds while removing fractions corresponding to essential oils, that is, those that correspond to the characteristic aroma of the plants. Another striking result has been the tocopherol content in the microalgae, 1.3 mg alpha-tocopherol/100 g of dried commercial spirulina, which do not justify the supposed source of antioxidant vitamins. Results suggest the need of more reliable determinations of tocopherols in vegetable sources to be included in databases.

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Crossref · 10.1016/j.chroma.2004.08.072

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Authors
Gómez-Coronado, D. J. M., Ibañez, E., Rupérez, F. J., & Barbas, C.
Affiliations
Universidad San Pablo CEU (ES)
Corresponding author
Barbas, Coral
Venue
Journal of Chromatography A
Publisher
Elsevier BV
Published
2004-10
Volume
1054
Issue
1-2
Pages
227-233
ISSN
0021-9673 (ISSN-L)
OpenAlex
W2162603508
Cited by
94
References
27
Citations by year
2026: 1 · 2025: 2 · 2024: 3 · 2022: 4 · 2021: 2 · 2020: 5 · 2019: 5 · 2018: 6 · 2017: 5 · 2016: 2 · 2015: 3 · 2014: 8 · 2013: 4 · 2012: 14
FWCI
2.51
Type
journal article
Language
en
Open access
Locations
  • Journal of Chromatography A (publishedVersion)
  • PubMed (publishedVersion)
  • DIGITAL.CSIC (Spanish National Research Council (CSIC)) (submittedVersion)
  • CEU Repositorio Institucional (Fundación Universitaria San Pablo CEU) (submittedVersion, cc-by-nc-nd)
Topics
  • Health Sciences › Medicine › Biochemistry › Antioxidant Activity and Oxidative Stress
  • Physical Sciences › Chemistry › Organic Chemistry › Edible Oils Quality and Analysis
  • Health Sciences › Medicine › Biochemistry › Phytochemicals and Antioxidant Activities
Keywords
tocopherols, alpha-tocopherol, gamma-tocopherol, natural antioxidants, vegetable leaves, dill, bays, Mentha spicata, parsley, Spirulina platensis, supercritical fluid extraction, tocopherol determination, essential oils
MeSH terms
Vegetables, Tocopherols, Chromatography, Supercritical Fluid

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