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

DOI: 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.

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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://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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