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. 2019 Jul 11;24(14):2537. doi: 10.3390/molecules24142537

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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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Influence of ultrasound irradiation frequency on the extraction yields of anthocyanins (A) and flavonols (B); influence of ultrasound irradiation power on the extraction yields of anthocyanins (C) and flavonols (D); influence of ultrasound irradiation time on extraction yields of anthocyanins (E) and flavonols (F).