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. 2023 Apr 11;28(8):3371. doi: 10.3390/molecules28083371

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© 2023 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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Antioxidant activity of essential oils of Hyptis crenata: (A) DPPH Assay (B) β-carotene assay. Values with the same letters in the bars (a, b, c, d or e) do not differ statistically in the Tukey test (p > 0.05).