INVESTIGADORES
FERNANDEZ LORENZO Monica Alicia
artículos
Título:
Detection of carvacrol in essential oils by electrochemical polymerization
Autor/es:
BERTUOLA, M.; FAGALI, N.; FERNÁNDEZ LORENZO DE MELE, M.
Revista:
Heliyon
Editorial:
Elsevier
Referencias:
Año: 2020 vol. 6
ISSN:
2405-8440
Resumen:
Carvacrol (Carv) and thymol (TOH), components of essential oils, are known by their antimicrobial and antioxidantactivity. However, Carv but not TOH seems to be the responsible of anti-inflammatory and inhibition ofCu corrosion properties. Since Carv and TOH are positional isomers, their identification is tricky and GC-MS isusually required. To find simple and inexpensive methods that allow the detection of Carv in presence of TOH(e.g. essential oils), cyclic voltammetry and chronoamperometry tests using Pt and Cu as electrodes in TOH andCarv containing mixtures and essential oils were made. Electrochemical and ATR-FTIR results show that purephytocompounds and mixtures lead to the formation of polymeric layers on both metallic surfaces. Results showthat only Cu is suitable for Carv detection. Potentiostatic and potentiodynamic detection is simple and conclusivein Carv þ TOH mixtures and in essential oils due to the formation of a homogeneous blocking Carv electropolymericlayer on Cu.
