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Molecules

Title:		Volatilome Analyses and In Vitro Antimicrobial Activity of the Essential Oils from Five South African Helichrysum Species
Author(s):		Najar B; Nardi V; Cervelli C; Mecacci G; Mancianti F; Ebani VV; Nardoni S; Pistelli L;
Address:		"Dipartimento di Farmacia, Universita di Pisa, Via Bonanno 6, 56126 Pisa, Italy. CREA-Centro di Ricerca Orticoltura e Florovivaismo, Corso Inglesi 508, 18038 Sanremo, Italy. Dipartimento di Scienze Veterinarie, Universita di Pisa, Viale delle Piagge 2, 56124 Pisa, Italy. Centro Interdipartimentale di Ricerca Nutraceutica e Alimentazione per la Salute 'Nutrafood', Universita di Pisa, Via del Borgetto 80, 56124 Pisa, Italy"
Journal Title:		Molecules
Year:		2020
Volume:		20200713
Issue:		14
Page Number:		-
DOI:		10.3390/molecules25143196
ISSN/ISBN:		1420-3049 (Electronic) 1420-3049 (Linking)
Abstract:		"Helichrysum genus was used in folk South African medicine to treat various human disorders. As a part of our on-going research addressing the exploitation of South African plants belonging to this genus, five species were investigated for their volatile and antimicrobial activities. The volatile organic compounds (VOCs) and the essential oils (EOs) were analysed by gas chromatography mass spectrometry (GC-MS). Microdilution was the method used for assessing both antimycotic and antibacterial activities, which was also tested by Kirby-Bauer agar disc diffusion. Total monoterpenes (TMs) dominated the VOCs of four species (H. trilineatum (70.6%), H. edwardsii (79.3%), H. cooperi (84.5%), and H. pandurifolium (57.0%)). H. cooperi and H. edwardsii EOs showed the predominance of TMs (68.2% and 84.5%, respectively), while H. pandurifolium and H. trilineatum EOs were characterized by the prevalence of TSs (86.5% and 43.6%, respectively). H. odoratissimum EO evidenced a similar amount of both TMs (49.5%) and TSs (46.4%). Microsporum canis was more sensitive to these EOs. The lowest minimum inhibitory concentration (MIC) was observed with H. pandurifolium and H. edwardsii EOs (0.25%). H. pandurifolium and H. trilineatum had a good effect on Staphylococcus aureus (MIC 5%). These findings open new perspectives for the exploitation of these natural compounds for application in cosmetics and pharmaceutics"
Keywords:		"Anti-Infective Agents/chemistry/*pharmacology Helichrysum/*chemistry Microsporum/drug effects *Oils, Volatile/chemistry/pharmacology South Africa Staphylococcus aureus/drug effects *Volatile Organic Compounds/chemistry/pharmacology Gc-ms H.cooperi H.edw;"
Notes:		"MedlineNajar, Basma Nardi, Valeria Cervelli, Claudio Mecacci, Giulia Mancianti, Francesca Ebani, Valentina Virginia Nardoni, Simona Pistelli, Luisa eng Switzerland 2020/07/17 Molecules. 2020 Jul 13; 25(14):3196. doi: 10.3390/molecules25143196"