Six lavender essential oils, L. angustifolia and ﬁve Lavandula x hybrida cultivars (Super Z, Abrialis, R.C., Alardii and Ordinario), were evaluated from a phytochemical and biological standpoint, and the results were computed by using multivariate data analysis. The essential oils were analysed by gas chromatography, gas chromatography– mass spectrometry and headspace gas-chromatography. Multivariate analyses (principal component analysis) identiﬁed three main phytochemical clusters among lavender essential oils, represented by 1,8-cineole, linalyl acetate and linalool. Functional properties of the essential oils were checked by (1) estimating cytotoxicity and genotoxicity using the Saccharomyces cerevisiae D7 strain; (2) determining antifungal activity against three common phytopathogens (Pythium ultimum, Magnaporthe grisea and Botrytis cinerea), by performing an agar vapour bioassay; and (3) calculating the antioxidant capacity by using the 1, 1-diphenyl-2-picrylhydrazyl (DPPH) and b-carotene bleaching tests. No mutagenic effects were detected, but multivariate analyses (PLS, partial least squares regression) showed that the essential oils belonging to the linalool cluster were the most cytotoxic. Antifungal activity against phytopathogens conﬁrmed the predictive results of PLS. The differences among lavender essential oils regarding weak antioxidant capacity showed a positive relationship between the high polarity compounds and the DPPH method, as determined by PLS. The opposite effect was shown for the same type of compound and b-carotene. Ketones and esters did not exert any signiﬁcant antioxidant activity. In conclusion, taking lavender essential oils as a model and computing multivariate data of a reduced number of parameters, the proposed approach assured the description of the relationship between a phytocomplex, its constituents and bioactivities, and allowed a comprehensive, predictive approach to be deﬁned, for which the chemical proﬁle provides a possible synergic overall effort in terms of applicative perspectives.
|Data di pubblicazione:||2013|
|Titolo:||A multivariate analysis approach to the study of chimica and functional properties of chemodiverse plant derivatives: lavender essential oil|
|Autori:||Maietti, Silvia; Rossi, Damiano; Guerrini, Alessandra; Useli, Chiara; Romagnoli, Carlo; Poli, Ferruccio; Bruni, Renato; Sacchetti, Gianni|
|Digital Object Identifier (DOI):||10.1002/ffj.3145|
|Appare nelle tipologie:||Articolo su rivista|
File in questo prodotto:
I documenti presenti in Iris Unimore sono rilasciati con licenza Creative Commons Attribuzione - Non commerciale - Non opere derivate 3.0 Italia, salvo diversa indicazione.
In caso di violazione di copyright, contattare Supporto Iris