Abstract
The formation of low-molecular-mass degradation products was studied by
gas-liquid chromatographic analyses during the oxygen delignification of
pine kraft pulp. Depending on the alkali charge and bleaching time the
total amount of carbohydrate-derived aliphatic acids and monomeric
lignin degradation products varied between 0.1—1.7% and 0.2—0.5% of
pulp, respectively. Formic, glycolic, acetic, 3-deoxypentonic, and
deoxytetronic acid were the most abundant aliphatic acids, while
acetovanillone, 5-formylvanillin, 5-carboxyvanillin, and vanillic acid
predominated (70—90% of the aromatics detected) among the monomeric
lignin-derived degradation products.
| Original language | English |
|---|---|
| Pages (from-to) | 83-86 |
| Journal | Holzforschung |
| Volume | 45 |
| Issue number | s1 |
| DOIs | |
| Publication status | Published - 1991 |
| MoE publication type | A1 Journal article-refereed |