Investigation on chemical composition, anticholinesterase and antioxidant activities of extracts and essential oils of Turkish Pinus species and pycnogenol

Investigation on chemical composition and optimization of essential oil obtainment from waste Pinus taeda L. using hydrodistillation

“…Tricyclene, β-myrcene and β-phellandrene were also present, however, in lower proportions than those obtained in this work, being 0.8, 0.3 and 0.2%, respectively. In others pine species the composition of oil from needles/twigs/cones of four species (Pinus pinea, P. halepensis, P. pinaster and P. nigra) from Italy (Macchioni et al 2003), five species (P. brutia, P. halepensis, P. nigra, P. pinea, and P. sylvestris) from Turkey (Ustun et al 2012) and five species (P. attenuata, P. heldreichii, P. peuce, P. pinaster and P. radiata) from Greece (Petrakis et al 2001) were analyzed. With exception of two species from Greece (P. peuce and P. pinaster), all the other species presented β-pinene (0.7 to 47.5%), α-pinene (6.2 to 96.5%), β-myrcene (0.2 to 42.1%) and β-phellandrene (0.3 -7.5% and traces).…”

“…The wood of this tree is used to make paper and timber, but after harvesting the wood, most of the tree, including twigs and needles, is discarded or burned to generate heat energy for its own industry. Obtaining the essential oil (bioproduct) from this pine would represent a way to utilize some of its byproducts (Oliveira et al 2006;Ustun et al 2012;Almeida et al 2010). Considering the exiguous literature reports about obtention of essential oils from the byproducts of needles/twigs of P. taeda and few reports of their characterization and chemical composition, the aim of this work is to optimize the process using steam hydrodistillation of twigs/needles and carrying out the characterization of the volatile compound of the essential oil.…”

Chemical analysis of phenolic compounds and determination of antioxidant, antimicrobial and cytotoxic activities of organic extracts of Pinus coulteri

“…Numerous groups are currently performing further activity-guided studies to find of new molecules of interest, including extraction prepared from divers parts of pine (Ustun et al, 2012;Cui et al, 2005;Kwak et al, 2006;Amalinei et al, 2014;YesilCeliktas et al ., 2009).…”

“…Some pine such as P. pinaster, P. halepensis, P. brutia, P. radiata, P. pinea, P. nigra and other have been extensively researched (chemical composition and biological activities, morphological and geographical variation, gene ecology and genetic side) (Ait Mimoune et al, 2013;Dob et al, 2007;Ustun et al, 2012;Yesil-Celiktas et al, 2009;Calamassi, 1986), there are comparably few studies that have been conducted on the biological activities and the phenolic composition of the extracts from other pine species.…”

In VitroStudy on the Antioxidant Activity of a Polyphenol-Rich Extract fromPinus brutiaBark and Its Fractions

“…The bark is the main waste from the industrial processing of the wood of mature trees that is still useless and discarded. [14][15][16] There are recent reports on the chemical composition and biological activities of the bark collected from pines growing in western Turkey (Izmir-Deliomer). Several low-molecular-weight compounds (taxifolin isomers, catechins, and procyanidins) have been identified in bark extracts.…”