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The effect of aging on lignins of wood

โœ Scribed by K. Borgin; O. Faix; W. Schweers

Publisher
Springer
Year
1975
Tongue
English
Weight
250 KB
Volume
9
Category
Article
ISSN
0043-7719

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โœฆ Synopsis

Samples of different wood species varying in age from 900 to 4400 years and stored during this period under different conditions were analyzed for their lignin content. Lignins isolated from the samples were investigated by IR-spectroscopy. It could be shown that lignin in wood undergoes oxidative changes which lead to a decrease in the amount of lignin isolated by the hydrochloric acid procedure.

๐Ÿ“œ SIMILAR VOLUMES

Notes on the spectrophotometric determin
Notes on the spectrophotometric determination of lignin in wood samples
โœ J. D. Zyl ๐Ÿ“‚ Article ๐Ÿ“… 1978 ๐Ÿ› Springer ๐ŸŒ English โš– 384 KB

A method developed by Johnson et al. whereby lignin is determined spectrophotometrically was found to yield lignin values which showed variations of up to 10 %. The presence of water in, and the freshness of the digestive mixture together with the grade of acetic acid used and the time between dilut