Chemical composition of defatted strawberry and raspberry seeds and the effect of these dietary ingredients on polyphenol metabolites, intestinal function, and selected serum parameters in rats

Journal of Agricultural and Food Chemistry
Monika KosmalaEdward Rój

Abstract

Strawberry and raspberry seeds were chemically analyzed and added as dietary ingredients to investigate the physiological response of rats. In both cases the main component was dietary fiber and the main polyphenols were ellagitannins (ET). The strawberry ET were mainly constituted by monomers and a dimer, agrimoniin, whereas raspberry ET were mainly constituted by a dimer, sanguiin-H-6, and a trimer, lambertianin-C. The lower content and the less polymerized structure of strawberry ET resulted in a higher cecal metabolites concentration (mainly nasutin and urolithin-A) in comparison to rats fed diet containing raspberry seeds. Dietary raspberry seeds, a source of dietary fiber, despite being richer in polyphenol compounds, were better utilized in fermentation processes, resulting in enhanced production of short-chain fatty acids. As opposed to strawberry seeds, the treatment with raspberry seeds beneficially improved the atherogenic index of a diet, mainly due to reduced triacylglycerol concentration in the serum.

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Citations

Sep 24, 2015·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Juana I MoseleMaria-José Motilva
Dec 23, 2015·European Journal of Nutrition·Adam JurgońskiLidia Markiewicz
May 5, 2016·The Journal of Nutritional Biochemistry·Inhae KangSoonkyu Chung
Jul 22, 2017·Annals of the New York Academy of Sciences·Daniel M GrochowskiMichał Tomczyk
Aug 24, 2018·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Bartosz FotschkiMichał Sójka
Dec 17, 2020·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Ewa Żary-SikorskaJerzy Juśkiewicz
Jul 11, 2020·Journal of Agricultural and Food Chemistry·Jakub MacierzyńskiElżbieta Karlińska

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