Liha töötlemine
contents of phenols depend on the kind of The group of carboxylic acids in wood
wood, temperature, and the density of the smoke consists of about 30 various com-
analyzed smoke. According to different data, pounds. In the aliphatic fraction, the follow-
it may be from 10 to 200 mg/m3; the yield of ing acids were identified: acetic, propionic,
phenols from 100 g of wood ranges from 50 isobutyric, butyric, crotonic, isocrotonic,
to 5000 mg. This fraction includes com- valeric, isovaleric, heptanoic, caprylic, and
pounds containing one, two, or three hydroxyl nonanoic (Kłossowska 1979). Among the
groups bound to the benzene ring, besides dicarboxylic acids are oxalic, malonic,
alkyl or ether derivatives, as well as those fumaric, maleic, and succinic acids. Wood
containing additional alcohol, aldehyde, acid, smoke also contains several ketocarboxylic
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