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. 2022 Dec 12;27(24):8802. doi: 10.3390/molecules27248802

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© 2022 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 (https://creativecommons.org/licenses/by/4.0/).

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Response surface plots indicating combined effects of UAE variables on DPPH: (a) time and temperature, (b) time and ethanol concentration, (c) temperature and ethanol concentration, (d) Pareto chart (α = 0.05).