Tocopherols, Tocomonoenols, and Tocotrienols in Oils of Costa Rican Palm Fruits: A Comparison between Six Varieties and Chemical versus Mechanical Extraction
Irias-Mata A, Stuetz W, Sus N, Hammann S, Gralla K, Cordero-Solano A, Vetter W, Frank J (2017)
Publication Language: English
Publication Status: Published
Publication Type: Journal article, Original article
Publication year: 2017
Journal
Publisher: American Chemical Society
Book Volume: 65
Pages Range: 7476-7482
Journal Issue: 34
URI: https://pubs.acs.org/doi/abs/10.1021/acs.jafc.7b02230
Abstract
Palm oil is one of the richest sources of tocotrienols and may contain other non-tocopherol vitamin E congeners. The vitamin E profiles of fully ripened fruit mesocarp of three Elaeis guineensis, two Elaeis oleifera, and one hybrid O × G palm fruit genotypes from Costa Rica were analyzed by high-performance liquid chromatography with fluorescence detection and gas chromatography–mass spectrometry after mechanical extraction by a screw press and chemical extraction with hexane. γ-Tocotrienol, α-tocotrienol, and α-tocopherol were the most abundant tocochromanols, while other tocopherols (β-tocopherol, γ-tocopherol, and δ-tocopherol) and α-tocomonoenol were detected at minor concentrations. Significant differences in vitamin E profiles between genotypes were observed, and the variety E. oleifera Quepos (CB9204) had by far the highest content of total tocotrienols (890 μg/g of oil) and total vitamin E (892 μg/g of oil). Chemical extraction with hexane afforded up to 2.5-fold higher vitamin E yields than screw press extraction. α-Tocomonoenol co-eluted with γ-tocopherol in reversed-phase high-performance liquid chromatography analyses and is a possible source of error in the quantification of γ-tocopherol in foods.
Authors with CRIS profile
Simon Hammann
Juniorprofessur für Lebensmittelsicherheit und -qualität (am Henriette Schmidt-Burkhardt Lehrstuhl)
Involved external institutions
Germany (DE)
Costa Rica (CR)How to cite
APA:
Irias-Mata, A., Stuetz, W., Sus, N., Hammann, S., Gralla, K., Cordero-Solano, A.,... Frank, J. (2017). Tocopherols, Tocomonoenols, and Tocotrienols in Oils of Costa Rican Palm Fruits: A Comparison between Six Varieties and Chemical versus Mechanical Extraction. Journal of Agricultural and Food Chemistry, 65(34), 7476-7482. https://dx.doi.org/10.1021/acs.jafc.7b02230
MLA:
Irias-Mata, Andrea, et al. "Tocopherols, Tocomonoenols, and Tocotrienols in Oils of Costa Rican Palm Fruits: A Comparison between Six Varieties and Chemical versus Mechanical Extraction." Journal of Agricultural and Food Chemistry 65.34 (2017): 7476-7482.
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