Quercus petraea

Kurschner WM (1997) The anatomical diversity of recent and fossil leaves of the durmast oak (Quercus petraea Lieblein/Quercuspseudocastanea Goeppert) implications for their use as biosensors of paleoatmospheric C02 levels. Rev Palaeobot Palyno 96 1-30... 

From Spanish oak wood (Quercus petraea, Quercus pyrenaica) lH-pyr-role-2-carbaldehyde 82 was extracted and characterized by GC-MS, showing that the oak wood quality has a great influence on wine s sensory properties (07AJEV163). Similarly, Canadian ice wines have been investigated by GC-MS, and 5-(cyclohexylmethyl)-2-pyrrolidinone 83 could be characterized (02AJEV46, 04MI1675). 

Chatonnet, P. and Dubourdieu, D. (1998). Comparative study of the characteristics of American white oak ("Quercus alba") and European oak ("Quercus petraea and Q. robur") for production of barrels used in barrel aging of wines. ]. Int. Sci. Vigne Vin. 32, 99-104. 

Masson, E., Baumes, R., Moutounet, M., and Puech, J. L. (2000). The effect of kiln drying on the levels of ellagitannins and volatile compounds of European oak (Quercus petraea Liebl.) stave wood. Am. ]. Enol. Vitic. 51, 201-214. 

Diaz-Maroto, M. C., Guchu, E., Castro-Vazquez, L., de Torres, C., Perez-Coello, M. S. (2008). Aroma active compounds of American oak Quercus alba) and Prench, Hungarian and Russian oak woods Quercus petraea) studied by Gas Chromatography-Mass Spectrometry and Gas Chromatography-Olfactometry. Flavour Fragr. J., 23, DOI 10.1002/ffj.l858. 

Doussot, E, Pardon, R, Dedier, J., de Jeso, B. (2000). Individual, species and geographic origin influence on cooperage oak extractible content Quercus robur L. and Quercus petraea Liebl.). Analusis, 28, 960-965. 

FeuiUat, R, Moio, L., Guichard, E., Marinov, M., Fournier, N., Puech, J. L. (1997). Variation in the concentration of ellagitannins and cis- and rrani-/i-methyl-y-octalactone extracted from oak wood (Quercus robur L., Quercus petraea Liebl.) under model wine cask conditions. Am. J. Enol. Vitic., 48, 509-515. 

Guchu, E., Diaz-Maroto, M. C., Diaz-Maroto, I. J., Vrla-Lamerio, R, Perez-Coello, M. S. (2006a). Influence of the species and geographical location on volatiles composition of Spanish oak wood (Quercus petraea Liebl. and Quercus robur L.). J. Agric. Food Chem., 54, 3062-3066. 

Masson, E., Baumes, R., Le Guemeve, C., Puech, J. L. (2000a). Identification of a precursor of yS-methyl-y-octalactone in the wood of sessile oak Quercus petraea (Matt.) Liebl.). J. Agric. Eood Chem., 48, 4306 309. 

Mclnerney M. and Bolger T. (2000a) Decomposition of Quercus petraea litter influence of burial, comminution and earthworms. Soil Biol. Biochem. 32(14), 1989—2000. 

OAKBARK, Querci cortex The drug consists of the bark of young branches and stems of Quercus rubor (L.) and Quercus petraea (Mattuschka) Liebl, family Fagaceae. The bark contains condensed tannins with polymers of catechin as the main constituents. Tannins of the same type are also found in rhattany root and tormentil root (see AOIA). 

The twelve new and twelve used barrels used in this experiment were made of American white oak (Quercus alba, fine grain) or French oak (Quercus petraea from the Allier forest in France), and were obtained from the same cooperage firm in Spain with the same specifications (medium toast level). The used barrels had been used three times for the aging of Monastrell wine and they were sanitatied before use by burning sulphur inside. The following barrels were used in the experiment 220 liter French oak barrel (3 new barrels and 3 used barrels) 220 liter American oak barrels (3 new barrels and 3 used barrels) 500 liter American oak barrels (3 new barrels and 3 used barrels) and 1000 liter American oak barrels (3 new barrels and 3 used barrels). 

Mosedale, J.R., Charrier, B. Janin, G. Genetic Control of Wood Color, Density and Heartwood Ellagitannin Content of European Oak (Quercus petraea and Quercus robur).Forestry 69 1996, pp.111-124. 

Balk, G., Hagemeyer, J., 1994. Extraction of Cd and Pb from stem wood of oak trees (Quercus petraea [MATT.]LIEBL.) with various solutions. Angew. Bot. 68, 191-194. 

Sessile or durmast oaks (Quercus petraea or Quercus sessilis) are prevalent in the Centre and Vosges regions. They generally have a high aromatic potential and rather low levels of extractable ellagitannins. 

Bakker et al. (1999) destroyed the pots with seedlings of Quercus petraea Liebl. M. and separated the roots from the soil by wet sieving, at 4 and 2 mm, under a stream of water. Roots collected from the sieves were floated, separated into living and dead roots, and subdivided into those less than and those larger than 2 mm in diameter. The finer roots were then gently shaken until a very small amount of soil remained adhering to the roots. This soil was considered to be the rhizosphere soil, and after the roots had been dried for a few hours, it was removed by brushing. Similarly, Boyle and Shaim (1998) used a paintbrush to remove the rhizosphere soil. 

Oak (Quercus Robur L, Quercus sessiliflora, Quercus petraea, 42 5 23-27 9-17 15-21 45-62... 

Prealpine Ostrya-wood with Quercus petraea... 

Ostrya-vrood with Quercus petraea and Quercus pubescens... 

Konig M, Scholz E, Hartmann R, Lehmann W, RimplerH (1994) Ellagitannins and complex tannins from Quercus petraea bark. J Nat Prod 57 1411-1415... 

Masson, G., Puech, J.-L. Moutounet, M. (1994). Localization of the ellagitannins in the tissues of Quercus robur and Quercus petraea woods. Phytochemistry, 37,1245-1249. 

Peng, S., Scalbert, A. Monties, B. (1991). Insoluble ellagitannins in Castanea saliva and Quercus petraea vroods. Phytochemistry, 30,775 778. 

Variation in the pH of the bark of the same tree species or even the same tree makes pH-lichen distribution correlations difficult to interpret. For example, there are variations in the pH of stem flow of Quercus petraea in different seasons (Carlisle et al., 1967) and significant differences with tree age in Populus (Margot, 1965). Young (1938) reported very small but consistently higher pH values on the north side of the trees she examined as compared with the south side, and Hale (1967) reported that bark acidity is greater at the base than at upper levels of a tree trunk. 

Carlisle, A., Brown, A. H. F., and White, E. J. (1967). The nutrient content of tree stem flow and ground flora litter and leachates in a sessile oak Quercus petraea) woodland. J. EcoL 55, 615-627. 

Identification in Spanish oak heartwood of Quercus robur, Quercus petraea, Quercus pyrenaica and Quercus faginea [7210]. 

The damage on the most important broad-leaf species remains high or in some cases is increasing the oak (Quercus robur, Quercus petraea) is the second most damaged species ( oak die-back is now being termed) (A 18 % FRG 32.4 % CH 11 %). Here also stands over age 60 are most affected. 

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