The pinewood nematode (PWN) Bursaphelenchus xylophilus, vectored primarily by the sawyer beetle, Monochamus alternatus, is an important invasive pest and causal agent of pine wilt disease of Chinese Masson pine, Pinus massoniana. Previous work demonstrated that the ratios and concentrations of α-pinene:β-pinene differed between healthy trees and those trees containing blue-stain fungus (and M. ...

Essential oils of Nepeta parnassica, collected at different developmental stages, were analyzed by means of GC/MS. From the fifty-five identified constituents in samples A and B, representing 94.8% and 98.7% of the oils respectively, 4a(alpha),7alpha,7alpha(beta)-nepetalactone (22.0%), 1,8-cineole (21.1%), alpha-pinene (9.5%) and 4a(alpha),7,beta,7alpha(beta)-nepetalactone (7.9%) were the major...

Abstract. A comprehensive chamber investigation of photochemical secondary organic aerosol (SOA) formation and transformation in mixtures anthropogenic (o-cresol) biogenic (α-pinene isoprene) volatile compound (VOC) precursors the presence NOx inorganic seed particles was conducted. To enable direct comparison across systems, initial concentration (hence reactivity) systems towards dominant OH ...

Introduction: The objective of this investigation was to evaluate the effect Rosmarinus officinalis essential oil on anxiety, depression, and sleep quality. Methods: oils were extracted by hydro-distillation using a modified Clevenger-type apparatus chemical composition performed Gas chromatography with flame ionization detection (GC-FID) mass spectrometry (GC–MS). Furthermore, quasi-experiment...

The current study describes the composition of Salvia lavandulifolia (Vahl) essential oils (SlEOs) obtained from plants cultivated in Murcia (Spain), as determined by gas chromatography. Relative and absolute concentrations, the enantiomeric ratios of chiral compounds and the in vitro antioxidant, antienzymatic and antimicrobial activities are described. The main components of the SlEOs were ca...

We investigated the effect of cineole on the expression of genes related to reverse cholesterol transport and hepatic fatty acid metabolism. Cineole, a small aroma compound in teas and herbs, significantly stimulated the transactivation of liver X receptor modulator (LXR)-α and LXR-β. The mRNA and protein expression of LXRs and their target genes, including ABCA1 and ABCG1, was significantly in...

Abstract The heat capacity of different mixtures terpenes (α-pinene, β-pinene, limonene oxide) and solvents (acetone, toluene, ethyl acetate) at atmospheric pressure (85.1 kPa atm in Medellin, Colombia) were measured using a microcalorimeter several terpene molar fractions from room temperature to value close the solvent boiling point. analyzed acetone + α-pinene 298.15 323.15 K, toluene oxide ...

The present study describes the phytochemical profile and antimicrobial activity of Matricaria chamomilla essential oil. The sample of essential oil was obtained from the aerial parts of the plant by hydrodistillation and analyzed by GC–MS. A total 55 compounds were identified mainly including α-Pinene (22.11%), Camphene (10.8%), Sabinene (4%), Limonene(5.64%),1,8-Cineole(6.45%), Camphor (4%) a...

This study investigates the variations in chemical profiles and biological activities (antioxidant cytotoxic) of Eplingiella fruticosa from state Sergipe, an endemic species Northeast region Brazil. The essential oils were extracted six populations by hydrodistillation analyzed GC/MS-FID. Cluster analysis was performed with data constituents oils, then a dissimilarity matrix, based on Euclidean...

The aim of this research was to determine the chemical composition and insecticidal activity of the essential oils derived from flowering aerial parts of Artemisia giraldii Pamp. and A. subdigitata Mattf. (Family: Asteraceae) against the maize weevil (Sitophilus zeamais Motsch.). Essential oils of aerial parts of A. giraldii and A. subdigitata were obtained from hydrodistillation and investigat...