Marina Russo, Germana Torre, Caterina Carnovale, Ivana Bonaccorsi, Luigi Mondello & Paola Dugo. A new HPLC method developed for the analysis of oxygen heterocyclic compounds in Citrus essential oils. Journal of Essential Oil Research Volume 24, Issue 2, 2012
Riccioni L., Orzali L. Activity of tea tree (Melaleuca alternifolia, Cheel) and thyme (Thymus vulgaris, Linnaeus.) essential oils against some pathogenic seed borne fungi. Journal of Essential Oils Research.Vol. 23: 43-47. November/December 2011
Melaleuca alternifolia (tea tree) and Thymus vulgaris (thyme) essential oils were tested for their antifungal activity to investigate the possibility of their use for seed treatment. The ability of the two oils to inhibit mycelial growth was studied by in vitro assay on agar medium containing different concentrations of the essential oils (0%, 0.05%, 0.1%, 0.25%, 0.5%, 1% v/v). Seven seed-borne pathogen fungi of large interest Ascochyta rabiei, Colletotrichum lindemuthianum, Fusarium graminearum, F. culmorum, Drechslera avenae, Alternaria radicina and A. dauci were transferred on the modified medium in order to test the oils antifungal activity, by calculating the Percentage of Mycelial Growth Inhibition (%MGI) and the Minimum Inhibitory Concentration (MIC). Results showed that both the oils had a clear reducing effect on fungal growth, that was dose-dependent and it differed depending on the fungal species, confirming what is already reported in literature, with T. vulgaris oil to be one of the most potent agent against fungi. M. alternifolia and T. vulgaris oils can be considered potential alternative natural fungicides to the synthetic chemicals that are currently used to prevent and control seed-borne diseases, and could be used in agriculture for safe and eco-friendly seed-treatments.
Veriano Vidrich, Piero Fusi, Alessia Graziano, Elisabetta Silvestrini, Marco Michelozzi, Franci Marco, Chemical Composition of the Essential Oil of Pistacia lentiscus L. Journal of Essential Oil Research 2004; 16 (3): 223-26
The chemical composition of the essential oils, obtained by separate distillation of the leaves, branches and fruits of Pistacia lentiscus from
Militello Marcello; Carrubba Alessandra; Blázquez Maria Artemisia arborescens L.: essential oil composition and effects of plant growth stage in some genotypes from
Essential oils from aerial parts of several Artemisia arborescens L. populations, collected in five different localities of
Mariateresa Russo, Demetrio Serra, Francesca Suraci, Santo Postorino, Effectiveness of electronic nose systems to detect bergamot (Citrus bergamia Risso et Poiteau) essential oil quality and genuineness. Journal of Essential Oil Research 2012; 24 (2):137-151
The quality of an essential oil is determined by its composition as well as by the complex aroma features. The aim of this work was to analyze the effectiveness of electronic nose (e-nose) systems to detect quality and genuineness of bergamot essential oils (BEOs). Tested methods included volatile analysis with the e-nose based on metal-oxide semiconductor sensors and analysis of chemical composition of essential oil by chromatography (GC/FID, GC/MS). The paper reports preliminary results on the potential of an e-nose to discriminate natural cold-pressed bergamot oil (BEO C-P) from those deterpenated and bergapten-free; between samples obtained from different cultivars; from samples obtained from fruit grown in the Protected Denomination of Origin (PDO) area and those outside the PDO; and finally from synthetic essential oils (SEO). This feasibility study has confirmed that an e-nose demonstrates the ability to supply a concrete support to BEO quality control. The e-noses, with subsequent DFA treatment of data, offer the advantages of rapidity and reliability. Further validation studies are currently under way with the aim of enriching and updating the databases of reference for BEOs. In order to broaden the range of e-nose use, tests on sensors chiral comportment are in progress, in order to bring this same approach in the study of adulteration of BEOs.