Abstract
The Vismia Vand. genus encompasses many species indigenous to the Amazon rain forest where they are popularly known as “Lacre” bark and leaves are widely employed by locals to treat dermatophytoses. The aim of this study was to investigate the chemical composition of essential oils (EOs) extracted from the aerial parts of the species Vismia guianensis (Aubl.) Choisy and Vismia cayennensis (Jacq.) Pers. and to assess their antimicrobial activity against the bacteria Staphylococcus aureus Rosenbach 1884 and Escherichia coli (Migula 1895) Castellani and Chalmers 1919 as well as the fungi Candida albicans (C.P. Robin) Berkhout 1923 and Candida parapsilosis (Ashford) Langeron & Talice 1932. The analysis of the chemical composition of the essential oil extracted from V. guianensis leaves (EOVg) indicated 46 components, of which three sesquiterpenes predominated, namely: (E)-caryophyllene (10.40%), α-copaene (29.45%), and (E)-nerolidol (24.06%). As to the essential oil from V. cayennensis leaves (EOVc), 61 components were identified, of which two oxygenated sesquiterpenes stood out as the main components, namely, germacrone (25.42%) and curzerene (25.29%). EOVg exhibited Minimum Inhibitory Concentration (MIC) of 1.56 µg/mL against the yeast C. parapsilosis whereas EOVc was active against the bacteria E. coli and S. aureus as well as the yeast C. parapsilosis. The results obtained in this study strongly recommend further research on the essential oils in question with a view to isolating and identifying the components responsible for their observed antimicrobial activities.
Highlights
Essential oils from plants have been widely used in medicine, agriculture, perfumery, and cosmetics (Paolini, et al., 2010; Thuy, et al, 2021; Maia, et al, 2019; Křůmal, et al, 2015; Razavi, et al, 2021; Saikia, et al, 2020; Stojanović-Radić, et al, 2020)
This study aimed at investigating the chemical profile and antimicrobial potential of essential oils extracted from V. guianensis and V. cayennensis (Jacq.) Pers. leaves against the microorganisms E. coli, S. aureus, Candida albicans
2.1.1 Extraction of essential oils from Vismia guianensis and V. cayennensis leaves The essential oils from V. guianensis and V. cayennensis leaves were obtained by hydrodistillation of fresh material in a modified Clevenger-type apparatus coupled to a round bottom flask with distilled water (5 L) for approximately 4 hours
Summary
Essential oils from plants have been widely used in medicine, agriculture, perfumery, and cosmetics (Paolini, et al., 2010; Thuy, et al, 2021; Maia, et al, 2019; Křůmal, et al, 2015; Razavi, et al, 2021; Saikia, et al, 2020; Stojanović-Radić, et al, 2020). Several research groups are currently conducting studies on the chemical composition and biological potential of essential oils extracted from numerous plants, such as Vismia Vand. Vismia is an extensive genus of the Hypericaceae family, consisting of small trees inhabiting the tropical and subtropical regions of Central and South America (Hussain et al, 2012). Notwithstanding the extensiveness of this genus, the literature provides scientific studies on essential oils from three. Rojas et al (2011) studied essential oils obtained from V. guianensis (Aubl.) Choisy fruit, V. baccifera. & Triana fruit, and V. macrophylla Kunth leaves and reported antimicrobial activity for V. baccifera var. Another study by Rojas et al (2010) on the essential oil (EO) extracted from V. baccifera fruit pointed to broad-spectrum bactericide activity against Staphylococcus aureus, Enterococcus faecalis, Escherichia coli (Migula 1895)
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
