phenolic compounds of wood

Evolution of Phenolic Compounds during an Experimental Aging in

and aged in wood were followed. Five Sherry wine vinegars and a model vinegar solution were aged in six new American oak butts of 16.6 L capacity. A total of 24 phenolic compounds were monitored during the maturation study (24 months), 

Extraction of Phenolic Compounds from Oak Wood in Model

Extraction of phenolic compounds from Oak wood in Model Solutions and Evolution of Aromatic Aldehydes in Wines Aged in Oak Barrels. JEAN-LOUIS PUECH 1. Bulgarian oak wood released tannins, lignin, and aromatic substances into a 

Phenols - Wikipedia

In organic chemistry, phenols, sometimes called phenolics, are a class of chemical compounds consisting of a hydroxyl group (—OH) bonded .. High levels of phenolics in some woods can explain their natural preservation against rot. In plants 

Evolution of the concentration of phenolic compounds in cachaça

Evolution of the concentration of phenolic compounds in cachaça during aging in an oak (Quercus sp.) Among the steps involved in its production, natural aging in wood containers for a certain period of time can lead to alterations in the 

Changes in low molecular weight phenolic compounds in Spanish

J Agric Food Chem. 2001 Apr;49(4):1790-8. Changes in low molecular weight phenolic compounds in Spanish, French, and American oak woods during natural seasoning and toasting. Cadahía E(1), Muñoz L, Fernández de Simón B, 

Phenolic Extractives and Natural Resistance of Wood IntechOpen

phenolic Extractives and Natural Resistance of wood. By M. S. Nascimento, A. L. B. D. Santana, C. A. Maranhão, L. S. Oliveira and L. Bieber. Submitted: July 7th 2012Reviewed: March 11th 2013Published: June 14th 2013. DOI: 10.5772/ 

Ultra-high performance liquid chromatography coupled to mass

1 Sep 2013 Ultra-high performance liquid chromatography coupled to mass spectrometry applied to the identification of valuable phenolic compounds from Eucalyptus wood. Santos SA(1), Vilela C, Freire CS, Neto CP, Silvestre AJ.

Antioxidant potential and content of phenolic compounds in extracts

Free radical scavenging activity was evaluated using 2,2-dipheny-2-picrylhydrazyl (DPPH). Extractive yields, antioxidant activity and total phenolic content varied among wood species. N. heimii had the highest extractive yields (23.50 and 9.16 

Contribution of Phenolic Compounds to Smoke Flavor

The roles of hemicellulose, cellulose and lignin thermal degradation on the formation of phenolic-based wood smoke volatiles are discussed. Compositional differences between hardwoods/softwoods and heartwood/sapwood as related to 

On the origin of phenolic compounds in the wood - Springer Link

9 by Springer-Verlag 1975. On the Origin of phenolic compounds in the wood Rays of Abies alba*. By Narayan Parameswaran and Josef Bauch**. [nstitut f'tir Holzbiologie und Holzschutz der Bundesforschungsanstalt ffir Forst- und Holzwirt-.

Antioxidant activity of knotwood extractives and phenolic - NCBI

Antioxidant activity of knotwood extractives and phenolic compounds of selected tree species. extracts of commercially important wood species, or fractions thereof, as well as for five pure wood-derived lignans and the flavonoid taxifolin.

Evolution of Phenolic Compounds of Spanish Oak Wood during

Evolution of phenolic compounds of Spanish Oak wood during. Natural Seasoning. First Results. Brıgida Fernández de Simón,* Estrella Cadahıa, Elvira Conde, and. Marıa Concepción Garcıa-Vallejo. Area de Industrias Forestales, 

On the origin of phenolic compounds in the wood rays of Abies alba

28 Mar 1975 The development and localization of phenolic compounds in sapwood and heartwood of Abies alba Mill. have been studied using cytological and UV-microspectrophotometric methods. The synthesis of

Evolution of Phenolic Compounds of Spanish Oak Wood during

6 Mar 1999 Low molecular weight polyphenols and ellagitannins were analyzed by HPLC, and the molecular weight distribution of ellagitannins was calculated by GPC, in oak heartwood of Quercus robur L., Quercus petraea Liebl., 

The Impact of Simple Phenolic Compounds on Beer Aroma - MDPI

19 Mar 2018 Simple phenolic compounds can have a major impact on beer aroma and flavor, both positive and negative. Other sources are less direct, either through extraction of phenols from wood during barrel aging, or from burning 

Phenolic Extractives and Natural Resistance of Wood - IntechOpen

wood is a natural organic material that consists mainly of two groups of organic compounds: carbohydrates (hemicelluloses and cellulose) and phenols (lignin), that correspond to (65-75%) and (20-30%), respectively (Pettersen 1984).

Identification of the main phenolic compounds in wood of Ceratonia

Phytochem Anal. 2004 Nov-Dec;15(6):385-8. Identification of the main phenolic compounds in wood of Ceratonia siliqua by GC-MS. Balaban M(1). Author information: (1)Istanbul University, Faculty of Forestry, Bahçeköy, Istanbul, Turkey.

LC-DAD/ESI-MS/MS study of phenolic compounds in ash (Fraxinus

Some LMW phenolic compounds like protocatechuic acid and aldehyde, hydroxytyrosol and tyrosol, were unlike to those for oak wood, while ellagic and gallic acid were not found. The toasting of wood resulted in a progressive increase in 

The chemical nature of phenolic compounds determines their

29 May 2014 Diverse phenolic compounds are formed as residues of lignin degradation during these wood and plant residue pre-treatment processes for hydrolysate production and wood pulping (Guss [1945], Klinke et al. [2004], Larsson 

Low Molecular Weight Phenolic Compounds in Spanish Oak Woods

Low molecular weight phenolics were analyzed by HPLC in oak heartwood of Quercus robur L., Quercus petraea Liebl., Quercus pyrenaica Wild., and Quercus faginea Lam. Data were processed with the STATGRAPHICS program. Gallic 

Phenolic Components and Antioxidant Activity of Wood Extracts from

8 Jul 2015 The chemical composition and radical-scavenging activity of wood samples from 10 main Spanish olive cultivars were Seventeen compounds were identified (10 secoiridoids, 3 lignans, 2 phenol alcohols, 1 iridoid, and 1 

Identification and quantitative analysis of phenolic compounds

1 Mar 2009 Identification and quantitative analysis of phenolic compounds naturally occuring in wood of selected European and exotic tree species. wood samples of 25 different trees species both European and exotic were examined 

Phenolic compounds in oak wood extracts used in the ageing of

Two samples of liquid extracts of oak wood displayed statistically aberrant vanillin contents. Key words: Brandy, oak wood extract, phenolic compounds, phenolic acids, aromatic aldehydes, HPLC. 1 INTRODUCTION. After leaving the pot still 

Contribution of Phenolic Compounds to Smoke Flavor - American

The roles of hemicellulose, cellulose and lignin thermal degradation on the formation of phenolic-based wood smoke volatiles are discussed. Compositional differences between hardwoods/softwoods and heartwood/sapwood as related to