Reconsidering Hydrosols as Main Products of Aromatic Plants Manufactory: The Lavandin (Lavandulaintermedia) Case Study in Tuscany

Molecules

Stefano Bedini¹  Priscilla Farina¹  Barbara Conti¹  Luigi Menghini²  Matteo Politi²  Alessandra Braca³  Pier Luigi Cioni³  Marinella De Leo³ 

[1] Department of Agriculture, Food and Environment, University of Pisa, via del Borghetto 80, 56124 Pisa, Italy;Department of Pharmacy, University of Chieti-Pescara, via Vestini 1, 66100 Chieti Scalo, Italy;Department of Pharmacy, University of Pisa, via Bonanno 33, 56126 Pisa, Italy;

关键词: Lavandula intermedia;    lavandin aromatic waters;    hydrosol;    hydrolate;    fingerprinting analysis;    insect repellence;   

DOI  :  10.3390/molecules25092225

来源: DOAJ

【 摘 要 】

: The present work evaluates for the first time two Lavandin (Lavandula × intermedia Emeric ex Loisel.) aromatic waters obtained from different plant organs, the flowers and the stems. Both extracts were analysed by GC-MS, which indicates semi-quantitative differences between the major metabolites including linalool, 1,8-cineole, camphor, linalyl acetate and 4-terpineol. ¹H-NMR and LC-MS investigation confirmed the presence of these compounds. Moreover, behavioural tests with the food insect pest Tribolium confusum (Coleoptera Tenebrionidae) showed a good repellency for both hydrosols extracts with RD₅₀ values of 3.6 and 3.3 µL cm^-2 for the flowers and stems, respectively; at the higher concentrations, however, the hydrosol extract from the flowers is expected to be more effective than the one from the stems. The effect of the flowers and stems aromatic water of Lavandin on seed germination of Raphanus sativus was also evaluated. Results showed that seed germination was completely inhibited by flowers hydrolate, having a possible application as natural herbicide. The overall experience with these Lavandin extracts indicates the potential of improved hydrolates to become the main distillation products, rather than by-products, of the aromatic plants manufacturing; this stimulates further discussions about the potential positive impacts that such a shift could have in the context of ecopharmacognosy.

【 授权许可】

Unknown