Occurrence of tocopheryl fatty acid esters in vegetables and their non-digestibility by artificial digestion juices

Scientific Reports
Stephanie KraußWalter Vetter

Abstract

Tocopheryl fatty acid esters (TFAE) consist of tocopherols esterified to fatty acids, but only little is known about this substance class. In this study, twelve vegetable groups were screened on TFAE and contents of (free) tocopherols and TFAE were determined in red bell pepper, red chili pepper, cucumber and walnut (n = 5, respectively). Intact TFAE were separated by solid phase extraction from free tocopherols and analyzed by GC/MS. Highest TFAE values were determined in chili pepper (4.0-16 mg/100 g fresh weight, FW) and walnut (4.1-12 mg/100 g FW), followed by bell pepper (1.3-1.5 mg/100 g FW) and cucumber (0.06-0.2 mg/100 g FW). Contribution of TFAE to the total tocopherol content ranged from 7-84%. Neither the treatment with artificial digestion juices nor exposure to sunlight showed degradation of TFAE. This substance class might represent a hitherto overlooked storage form for free tocopherols in plants as they occur to be more stable. But as the ester bond in medium chain TFAE seems not to be fissile in the human body, they might not contribute in the same way as free tocopherols to the vitamin E activity of vegetables and might have to be determined separately.

References

Nov 1, 1979·Journal of Agricultural and Food Chemistry·J KannerH Mendel
Jan 1, 1991·Free Radical Research Communications·C A Drevon
Jan 1, 1983·Journal of Agricultural and Food Chemistry·J K Candlish
Jul 1, 1996·Lipids·A Kamal-Eldin, L A Appelqvist
Jun 21, 2001·Journal of Agricultural and Food Chemistry·L S Ching, S Mohamed
Nov 9, 2002·Phytochemistry·Alberto S PereiraFrancisco R Aquino Neto
Jan 1, 1963·The British Journal of Nutrition·V H BOOTH, M P BRADFORD
Jun 30, 2004·International Journal of Food Sciences and Nutrition·L S MaguireN M O'Brien
Sep 14, 2006·Journal of Agricultural and Food Chemistry·Fayez Hamam, Fereidoon Shahidi
Nov 23, 2006·Planta·Peter Dörmann
Feb 1, 2007·Journal of Agricultural and Food Chemistry·Adrian A FrankeLaurie J Custer
Dec 29, 2009·Plant Physiology and Biochemistry : PPB·Laurent Mène-Saffrané, Dean DellaPenna
Jun 29, 2012·Food & Function·Anja Heinlein, Andrea Buettner
Jan 30, 2015·Molecular Biology of the Cell·Suneyna Bansal, Aditya Mittal
Jul 28, 2016·Journal of Agricultural and Food Chemistry·Stephanie KraußWalter Vetter

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Citations

Oct 2, 2019·Nutrients·Jazmín C Stevens-BarrónHumberto Astiazaran-García
Oct 16, 2020·Scientific Reports·Stephanie KraußWalter Vetter
Jul 3, 2021·International Journal of Molecular Sciences·Kacper SzewczykMagdalena Górnicka
Mar 22, 2019·Journal of Agricultural and Food Chemistry·Stephanie Krauß, Walter Vetter

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