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Composition of tocochromanols in the kernels recovered from plum pits: the impact of the varieties and species on the potential utility value for industrial application


The profile of tocopherol (T) and tocotrienol (T3) homologues in kernels recovered from 28 various plum varieties of hexaploid species Prunus domestica L. and diploid plums Prunus cerasifera Ehrh. and its crossbreeds were studied. One tocotrienol (α-T3) and four tocopherol homologues (α, β, γ and δ) were determined in all studied samples by an RP-HPLC/FLD method. The concentration of tocochromanols varied considerably in kernels of different plum varieties and amounted, respectively: 3.55–11.84 (α-T), 0.01–0.13 (β-T), 30.58–73.63 (γ-T), 0.71–4.04 (δ-T), 0.24–1.47 mg/100 g dw (α-T3). The total content of tocochromanols was recorded in the range 36.86–83.38 mg/100 g dw. The average percentage of individual tocochromanols detected in the plum kernels was as follows: α-T (11.6 %), β-T (0.1 %), γ-T (83.6 %), δ-T (3.5 %) and α-T3 (1.2 %). Concentration of tocopherol homologues and α-T3 in kernels of the diploid plums P. cerasifera and its crossbreeds were on average ~20 % lower, with the exception of δ-T (50 % lower), in comparison with the P. domestica. The principal component analysis allowed to classify the tested samples in two main groups and several outliers.

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Dry weight basis


Reverse-phase high-performance liquid chromatograph/fluorescence detector


Reverse-phase ultra-performance liquid chromatography–electrospray ionization/mass spectrometry






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This research was supported by the ESF Project Number 2013/0048/1DP/ “Creation of a researcher group to investigate the possibilities of stone fruit trees propagation, quality improvement of generative processes and fruit usage.”

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Correspondence to Paweł Górnaś.

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Górnaś, P., Mišina, I., Grāvīte, I. et al. Composition of tocochromanols in the kernels recovered from plum pits: the impact of the varieties and species on the potential utility value for industrial application. Eur Food Res Technol 241, 513–520 (2015).

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  • Plum kernels
  • By-products
  • Prunus
  • Tocopherols
  • Tocotrienols
  • Vitamin E