Antimicrobial Activity and Composition of Five Rosmarinus (Now Salvia spp. and Varieties) Essential Oils

Salvia rosmarinus Spenn. and Salvia jordanii J.B.Walker are aromatic evergreen shrubs belonging to the Lamiaceae family. Their aerial parts have been used since ancient times as natural preservatives. The present study reported the investigation of the chemical profile and the extraction yield of th...

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Bibliographic Details
Published in:Antibiotics (Basel) 2021-09, Vol.10 (9), p.1090
Main Authors: Pieracci, Ylenia, Ciccarelli, Daniela, Giovanelli, Silvia, Pistelli, Luisa, Flamini, Guido, Cervelli, Claudio, Mancianti, Francesca, Nardoni, Simona, Bertelloni, Fabrizio, Ebani, Valentina Virginia
Format: Article
Language:English
Subjects:
Acetic acid
Antibacterial activity
Antibiotics
Antimicrobial activity
Antimicrobial agents
Borneol
Bornyl acetate
Boule
Camphene
Camphor
Caryophyllene
Chemical composition
Chemicals
Cultivars
Essential oils
Fungicides
Gorizia
Humulene
Hydrocarbons
Investigations
Joyce de Baggio
Metabolites
Monoterpenes
Myrcene
Oils & fats
Preservatives
Principal components analysis
Rosmarinus eriocalyx
Rosmarinus officinalis
Shrubs
Verbenone
Vicomte de Noailles
Yeasts
α-Pinene
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Summary:Salvia rosmarinus Spenn. and Salvia jordanii J.B.Walker are aromatic evergreen shrubs belonging to the Lamiaceae family. Their aerial parts have been used since ancient times as natural preservatives. The present study reported the investigation of the chemical profile and the extraction yield of the essential oils (EOs) obtained from the dried aerial parts of four cultivars of Salvia rosmarinus (‘Boule’; ‘Vicomte de Noailles’; ‘Gorizia’; ‘Joyce de Baggio’) and the species S. jordanii, together with their antibacterial and antifungal activities. The phytochemical investigation evidenced a predominance of oxygenated monoterpenes in all the samples (57.5–77.1%), except in ‘Boule’, in which the hydrocarbon form prevailed (50.2%). Principal Component Analysis (PCA) of the matrix taxa × compounds showed that nine compounds have a significant discriminating function between the samples. ‘Vicomte de Noailles’ was characterized by high amounts of camphor and 14-hydroxy-9-epi-(E)-caryophyllene, while ‘Gorizia’ and Jord differed in their predominance of camphene, borneol, bornyl acetate, and α-humulene. Lastly, ‘Boule’ and ‘Joyce de Baggio’ segregated separately and were characterized by high amounts of α-pinene, myrcene, and verbenone. The selected EOs presented a moderate antibacterial activity on the tested bacterial strains and resulted not active on the tested yeast species.
ISSN:2079-6382
2079-6382
DOI:10.3390/antibiotics10091090