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. 2019 Nov 20;11(12):1913. doi: 10.3390/polym11121913

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© 2019 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Comparison of flow-through and batch extractions, showing the influence of the reactor setup on (A) extraction efficiency (corrected for alcohol incorporation) and (B) total β-O-4 content as determined by 2D HSQC.