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Identification of Dialkylpyrazines Off-Flavors in Oak Wood
Journal of Agricultural and Food Chemistry, 2019Volatile 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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Ellagitannins in European oak wood: Polymerization during wood ageing
Phytochemistry, 1994Abstract 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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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
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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
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Occupational Asthma Caused by Oak Wood Dust
Chest, 1995Three 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
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Aroma Compound Sorption by Oak Wood in a Model Wine
Journal of Agricultural and Food Chemistry, 2001Oak 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
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European oak wood polyphenols and cognac ageing in oak barrels
1992International ...
Viriot, C. +3 more
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2013
Oak wood samples from two species (Q. petraea and Q.frainetto) derived from east part of Bulgaria were collected. The pieces with the same size were formed from every sample and were undergoing on artificial cooperage seasoning. Non seasoned controls were formed for all samples. Alcoholic extracts were prepared from every seasoned and non seasoned wood
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Oak wood samples from two species (Q. petraea and Q.frainetto) derived from east part of Bulgaria were collected. The pieces with the same size were formed from every sample and were undergoing on artificial cooperage seasoning. Non seasoned controls were formed for all samples. Alcoholic extracts were prepared from every seasoned and non seasoned wood
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The Phytosocioloy of an Oak Woods in Southwestern Wisconsin
Ecology, 1949This study is concerned with the changes that have taken place in the vegetation of portions of the prairie-forest border region of southwestern Wisconsin since settlement by the white man in the 1830's and 1840's. The typical vegetation at that time was oak opening and prairie. The term "oak opening," as it applies to the prairie-forest border region,
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