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Ellagitannins in European oak wood: Polymerization during wood ageing

Phytochemistry, 1994
Abstract Ellagitannins in acetone-water extracts of outer and inner heartwood of European oak were assayed and their M r distribution studied by gel permeation chromatography. Ageing of heartwood in the living tree induces darkening of the extract, a decrease in its solubility in cold water and polymerization of ellagitannins.
Klumpers, J.   +2 more
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Identification of Dialkylpyrazines Off-Flavors in Oak Wood

Journal of Agricultural and Food Chemistry, 2019
Volatile extractive compounds from high-quality oak wood (Quercus sp.) are responsible for important pleasant olfactory notes, such as coconut, wood, vanilla, caramel, and spice. Recently, a new off-flavor reminiscent of rancid butter has been detected in oak wood. Using gas chromatography-olfactometry (GC-O) coupled to several detection modes, such as
Svitlana Shinkaruk   +4 more
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Vacuum Drying of Oak Wood

Drying Technology, 1995
ABSTRACT Vacuum drying, j,e drying under absolute gas pressure of about 10⊃ Pa. is an efficient means of reducing the process period and of producing good quality wood. We will examine here continuous vacuum drying where the plank surfaces are kept at a constant temperature, which remains above the boiling point, and moisture flowing to the surface is ...
J-P. Fohr   +3 more
openaire   +1 more source

Occupational Asthma Caused by Oak Wood Dust

Chest, 1995
Three cases of occupational asthma caused by oak wood dust are presented. The diagnosis was confirmed by specific inhalation challenges, which induced a dual asthmatic reaction in two subjects and an atypical prolonged immediate reaction in one subject.
J L, Malo   +4 more
openaire   +2 more sources

Aroma Compound Sorption by Oak Wood in a Model Wine

Journal of Agricultural and Food Chemistry, 2001
Oak wood used for wine barrels was immersed into a model wine containing eight aroma compounds (e.g., aromatic and terpene alcohols, ethyl esters, and aldehyde), for which activity coefficients in water and model wine were determined using the mutual solubility measurement.
Ramirez Ramirez, G.   +5 more
openaire   +3 more sources

Producing Mushrooms in Oak Woods

Oak forests are very diverse ecosystems offering favourable conditions for the development of fungi, including several species of mushrooms of gastronomic interest. 
Eduardo Pousa(   +3 more
openaire   +1 more source

European oak wood polyphenols and cognac ageing in oak barrels

1992
International ...
Viriot, C.   +3 more
openaire   +2 more sources

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