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. 2021 May 29;10(6):1241. doi: 10.3390/foods10061241

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© 2021 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 surfaces. (a) IC₅₀ values of the DPPH radical, (b) IC₅₀ values of the ABTS radical, (c) ferric-reducing antioxidant power, (d) total phenolic compounds, and (e) optimization of the sonication.