Evaluation of the antioxidant activity of the essential oils from Cantinoa carpinifolia (Benth.) and Lippia origanoides (Kunth.) by various methods.

Autor: Teixeira, Maria Luisa, Cardoso, Maria das Graças, Ferreira, Vanuzia Rodrigues Fernandes, Campolina, Gabriela Aguiar, Caetano, Alex Rodrigues Silva, Oliveira, Cassia Duarte, Alves, Marcus Vinicius Prado, Nelson, David Lee
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Zdroj: Journal of Essential Oil Research; Apr2023, Vol. 35 Issue 2, p143-153, 11p
Abstrakt: The essential oils from Cantinoa carpinifolia (Benth.) and Lippia origanoides (Kunth.) were obtained by hydrodistillation. The constituents were determined by GC-MS and GC-FID. The antioxidant activities were evaluated by the ABTS, DPPH and hydroxyl radicals, phosphomolybdenum complex, reducing power, β-carotene/linoleic acid and the TBARS methods. Analysis of variance and the Scott–Knott test of the means at 5% were performed. The principal constituents in the essential oil from C.carpinifolia were α-thujone (32.15%) and β-thujone (22.22%), whereas carvacrol (41.51%), p-cymene (18.36%) and γ-terpinene (17.03%) were obtained from L.origanoides. The respective IC50 for the essential oils from C. carpinifolia and L.origanoides in the ABTS tests were >1000 and 110 µg mL−1; DPPH (110 and >1000 µg mL−1), hydroxyl (636 and 484 µg mL−1), β-carotene (>2000 and 215 µg mL−1) and TBARS (778 and 527µg mL−1). The L. origanoides essential oil was the most effective antioxidant. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
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