Water deficit and seasonality study on essential oil constituents of Lippia gracilis Schauer germplasm.

Autor: Cruz EM; Department of Agronomic Engineering, Federal University of Sergipe, Avenue Marechal Rondon s/n, 49100-000 São Cristóvão, SE, Brazil., Pinto JA; Department of Agronomic Engineering, Federal University of Sergipe, Avenue Marechal Rondon s/n, 49100-000 São Cristóvão, SE, Brazil., Fontes SS; Department of Agronomic Engineering, Federal University of Sergipe, Avenue Marechal Rondon s/n, 49100-000 São Cristóvão, SE, Brazil., Arrigoni-Blank Mde F; Department of Agronomic Engineering, Federal University of Sergipe, Avenue Marechal Rondon s/n, 49100-000 São Cristóvão, SE, Brazil., Bacci L; Department of Agronomic Engineering, Federal University of Sergipe, Avenue Marechal Rondon s/n, 49100-000 São Cristóvão, SE, Brazil., de Jesus HC; Department of Chemistry, Federal University of Sergipe, Avenue Marechal Rondon s/n, 49100-000 São Cristóvão, SE, Brazil., Santos Dde A; Department of Chemistry, Federal University of Sergipe, Avenue Marechal Rondon s/n, 49100-000 São Cristóvão, SE, Brazil., Alves PB; Department of Chemistry, Federal University of Sergipe, Avenue Marechal Rondon s/n, 49100-000 São Cristóvão, SE, Brazil., Blank AF; Department of Agronomic Engineering, Federal University of Sergipe, Avenue Marechal Rondon s/n, 49100-000 São Cristóvão, SE, Brazil.
Jazyk: angličtina
Zdroj: TheScientificWorldJournal [ScientificWorldJournal] 2014; Vol. 2014, pp. 314626. Date of Electronic Publication: 2014 Sep 11.
DOI: 10.1155/2014/314626
Abstrakt: The aim of this study was to analyze the chemical composition of the essential oil from leaves of Lippia gracilis genotypes, in the dry and rainy seasons, and with and without irrigation. The extraction of essential oil was realized by hydrodistillation in a Clevenger apparatus. The chemical composition analysis was performed using a GC-MS/FID. The leaves of the L. gracilis genotypes provide essential oil with content between 1.25% and 1.92% in the rainy season and 1.42% and 2.70% in the dry season; when irrigation was used the content was between 1.42% and 2.87%, without irrigation contents were between 1.60% and 3.00%. The chemical composition of L. gracilis showed high levels of terpenes. The major constituent of genotypes LGRA-106 was thymol and carvacrol was the major constituent for the other genotypes. Concentrations showed little variation between seasons, demonstrating the stability of the chemical composition of L. gracilis even with different climatic conditions.
Databáze: MEDLINE
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