Seasonal changes in rosemary species: A chemotaxonomic assessment of two varieties based on essential oil compounds, antioxidant and antibacterial activities.

Autor: Ben Arfa A; Laboratoire des Ecosystèmes Pastoraux et de Valorisation des Plantes Spontanées, LR16IRA03, Institut des Régions Arides, Université de Gabès, Medenine, Tunisie., Gouja H; Laboratoire des Ecosystèmes Pastoraux et de Valorisation des Plantes Spontanées, LR16IRA03, Institut des Régions Arides, Université de Gabès, Medenine, Tunisie., Hannachi H; Laboratory of Plant Productivity and Environmental Constraint, LR18ES04, Biology Department, Faculty of Sciences, University Tunis El Manar, Tunis, Tunisia., Isoda H; Alliance for Research on the Mediterranean and North Africa (ARENA), University of Tsukuba, Tsukuba, Japan., Neffati M; Laboratoire des Ecosystèmes Pastoraux et de Valorisation des Plantes Spontanées, LR16IRA03, Institut des Régions Arides, Université de Gabès, Medenine, Tunisie., Najjaa H; Laboratoire des Ecosystèmes Pastoraux et de Valorisation des Plantes Spontanées, LR16IRA03, Institut des Régions Arides, Université de Gabès, Medenine, Tunisie.
Jazyk: angličtina
Zdroj: PloS one [PLoS One] 2022 Aug 29; Vol. 17 (8), pp. e0273367. Date of Electronic Publication: 2022 Aug 29 (Print Publication: 2022).
DOI: 10.1371/journal.pone.0273367
Abstrakt: Rosemary (Rosmarinus officinalis L.) is a popular herb in cooking, traditional healing, and aromatherapy. This study was conducted to evaluate the effects of meteorological conditions plant growth stage and genetic factors on the yield, quantitative and qualitative composition, on the antioxidant and antimicrobial activities of rosemary essential oil from two Tunisian locations (El Fahs and Matmata) during two successive years. The composition of the essential oils obtained by hydrodistilation from rosemary plants were carried out annually using GC and GC/MS. Results showed the the main constituents were camphor (18.2-28.1%), 1,8-cineole (6.4-18.0%), α-pinene (9.7-13.5%), borneol (4.4-9.5%), and camphene (5.1-8.7%). The principal component and heatmapper analyses showed group segregation of the two studied varities based on major essential oil compounds. Additionally, in vitro antimicrobial and antioxidant activities showed that rosemary essential oils had an important ability in scavenging DPPH, as well as a higher bactericidal effect. The seasonal variation, growth stage and genetic pools seemed to be a factors of significant variation of the composition, antimicrobial and the antioxidant activities of the rosemary essential oils. These finding would be taken to use the chemotaxonomy tools to develop a program for Rosmary protection conservation and identification based on essential oil composition.
Competing Interests: The authors have declared that no competing interests exist.
Databáze: MEDLINE
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