Chemical constituents of Ocotea paranaensis(Lauraceae) essential oil and their antioxidant, anticancer and antimicrobial properties

Abstract

Chemical constituents of Ocotea paranaensis (Lauraceae) essential oil and their antioxidant, anticancer and antimicrobial properties [Componentes químicos del aceite esencial de Ocotea paranaensis (Lauraceae) y sus propiedades antioxidantes, anticancer y antimicrobianas]

Microscopic investigations of Ocotea paranaensis―A Brazilian endemic and endangered species

“…Phenolic substances were found in the epidermis, subepidermal layer, phloem and xylem of the midrib (Figure 5e,f) and stem and in the ground parenchyma of the midrib (Figure 5e). Gribner, Moura, et al (2020) confirmed the presence of phenolic compounds in the leaves of O. paranaensis and isolated and identified four flavonoids, namely, epicatechin, quercetin, kaempferol and hyperin. Phenolics were also evidenced in the midrib of O. gardneri (Coutinho, Agra, Barbosa‐Filho, & Basilio, 2006) and O. puberula (Farago et al, 2005), and the midrib, petiole and stem of O. porosa (Brustulim et al, 2020) and O. nutans (Betim et al, 2020).…”

“…On the other hand, O. nutans had secretory structures in the lamina, petiole and stem but more abundantly in the petiole (Betim et al, 2020). Gribner, Moura, et al (2020) analyzed the essential oil of O. paranaensis and reported Z ‐nerolidol (19.16%), germacrene D (12.92%) and α ‐bulnesene (8.47%) as major compounds. Lipophilic content was also detected in the cuticle of leaves and stems (Figure 5c,d).…”

“…The essential oil presented antioxidant, antimicrobial and hemolytic activities. Antioxidant and antimicrobial activities were also reported for the isolated compounds epicatechin, quercetin, kaempferol, and hyperin (Gribner, Moura, et al, 2020).…”