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Lignin-carbohydrate bonds in a residual soda spruce pulp lignin

✍ Scribed by B. Košíková; A. Ebringerová

Publisher: Springer
Year: 1994
Tongue: English
Weight: 289 KB
Volume: 28
Category: Article
ISSN: 0043-7719
DOI: 10.1007/bf00204215

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✦ Synopsis

The behaviour of lignin-polysaccharide complex of spruce wood in soda pulping was studied by the characterization of lignin-saccharide fractions isolated from a series of soda pulps. The dioxane pulp lignins contain 8-14% of carbohydrates in which glucose was the predominant component. Its content increased with increasing degree of delignification indicating the formation of secondary lignin-carbohydrate linkage. Both glycosidic and ether type of bond between residual lignin and cellulose in pulp was proved by methylation analysis of the pulp dioxane lignin.

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