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. 2021 Jan 12;11(2):659–674. doi: 10.1007/s13346-020-00888-0

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© The Author(s) 2021

Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 5 — Determination of antioxidant capacity by DPPH assay. Left—DPPH assay of ethanolic hesperetin solution vs. hesperetin bulk material with and without stabilizer (PLC = Plantacare 2000) in ethanolic dispersion medium; middle—DPPH assay of ethanolic hesperetin solution and bulk material vrs. hesperetin nanocrystals in ethanolic dispersion medium; right—DPPH assay of ethanolic hesperetin solution and bulk material versus hesperetin nanocrystals in aqueous dispersion medium