Antimicrobial and antioxidant bioautography activity of bark essential oil from Ocotea quixos (Lam.) kosterm.

Abstract:

The present research evaluated the chemical composition as well as the antioxidant and antimicrobial properties of the essential oil from the bark of Ocotea quixos (Lam.) Kosterm. The major components of the essential oil were cinnamaldehyde <(E)-> (30.69%), methoxy cinnamaldehyde <(E)-o-> (16.29%), cinnamyl acetate <(E)-> (12.18%), and methyl cinnamate <(E)-> (5.72%). The antioxidant capacity showed to be superior to that of the essential oil of Tymus vulgaris . The results show low half maximal inhibitory concentration (IC 50 ) values, which means that the essential oil has a high activity: 2,2-diphenyl-1-picrylhydrazyl (DPPH) IC 50 , 2.786 ± 0.150 mg mL −1 ; 2,2′-azino-di-(3-ethylbenzthiazoline sulfonic acid (ABTS) IC50, 0.240 ± 0.034 mg mL −1 ; and IC 50 β-carotene test, 0.496 ± 0.017 mg mL −1 …

Año de publicación:

2018

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