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. 2021 Feb 19;12:640475. doi: 10.3389/fpls.2021.640475

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Copyright © 2021 Rosado, Rencoret, Marques, Gutiérrez and del Río.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Chromatograms of the DFRC degradation products released from the MWLs isolated from rice husk (A) and rice straw (B) showing the presence of sinapyl (and minor coniferyl) units acylated by p-coumarate moieties. tH, cG, tG, cS, and tS are the normal cis- and trans-p-hydroxyphenyl (H), coniferyl (G), and sinapyl (S) alcohol monomers (as their acetate derivates); cG_pCA, tG_pCA, cS_pCA, and tS_pCA are the cis- and trans-coniferyl and sinapyl dihydro-p-coumarates (as their acetate derivatives); T is tricin (as its acetate derivative).