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Antioxidant and antimicrobial activity of two standardized extracts from a new Chinese accession of non‐psychotropic Cannabis sativa L.
Author(s) -
Muscarà Claudia,
Smeriglio Antonella,
Trombetta Domenico,
Mandalari Giuseppina,
La Camera Erminia,
Occhiuto Cristina,
Grassi Gianpaolo,
Circosta Clara
Publication year - 2021
Publication title -
phytotherapy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.019
H-Index - 129
eISSN - 1099-1573
pISSN - 0951-418X
DOI - 10.1002/ptr.6891
Subject(s) - phytochemical , antimicrobial , chemistry , traditional medicine , antioxidant , essential oil , food science , chromatography , medicine , biochemistry , organic chemistry
The purpose of this study was to evaluate the antioxidant and antimicrobial properties of two extracts from a new Chinese accession (G‐309) of Cannabis sativa L. (Δ 9 ‐tetrahydrocannabinol <0.2%) with high content of propyl side chain phytocannabinoids. Dried flowering tops, as such and after hydrodistillation of the essential oil, were extracted with acidic hexane to produce the Cannabis Chinese hexane extract 1 (CChHE1) and 2 (CChHE2), respectively. The phytochemical profile of CChHE1 and CChHE2 was investigated by gas chromatography–mass spectrometry (GC–MS) and liquid chromatography–diode array detector–electrospray ionization–tandem mass spectrometry (LC‐DAD‐ESI‐MS/MS) analyses. The antioxidant properties were assessed by several in vitro cell‐free assays. The antimicrobial activity was evaluated against Gram‐positive and Gram‐negative bacteria and the yeast Candida albicans . Phytochemical analyses highlighted a high content of cannabidivarinic acid (CBDVA) and tetraydrocannabivarinic acid (THCVA) in CChHE1, and cannabidivarin (CBDV) and tetraydrocannabivarin (THCV) in CChHE2. Both extracts showed remarkable antioxidant activity and strong antimicrobial properties (MIC 39.06 and MBC 39.06–78.13 μg/ml) against both ATCC and methicillin‐resistant clinical strains of Staphylococcus aureus . In conclusion, standardized extracts of C. sativa Chinese accession could be promising for their possible use as novel antibacterial agents for the treatment of widespread S. aureus infections.