The reactivity of lignin carbohydrate complex (LCC) during manufacture of dissolving sulfite pulp from softwoodShow others and affiliations
2018 (English)In: Industrial crops and products (Print), ISSN 0926-6690, E-ISSN 1872-633X, Vol. 115, p. 315-322Article in journal (Refereed) Published
Abstract [en]
The presence of covalent bonds between lignin and polysaccharides was investigated in dissolving pulps made with one-stage and two-stage acidic sulfite pulping for 100% pine heartwood raw material. The covalent bonds between lignin and pulp polysaccharides occurred mainly to xylan and glucomannan and were of the phenyl glycosides and γ–esters types. The α-ethers that are common in wood were missing in the studied pulp samples. Based on these findings and known lignin reactions during sulfite pulping, a mechanism explaining the absence of the α-ethers is discussed. It is suggested that the lignin carbohydrate bonds may play a vital role in lignin recalcitrance.
Place, publisher, year, edition, pages
Elsevier B.V. , 2018. Vol. 115, p. 315-322
Keywords [en]
Lignin carbohydrate complexes, Pine heartwood, Size exclusion chromatography, Sulfite pulping, Universal fractionation method, Carbohydrates, Dissolution, Ethers, Lignin, Polysaccharides, Wood products, Dissolving pulp, Fractionation methods, Lignin carbohydrates, Lignin reaction, Lignin-carbohydrate complex, Pulp samples, Sulfite pulp, carbohydrate, chemical bonding, chemical method, chemical property, chromatography, fractionation, manufacturing, polysaccharide, processing, sulfite, wood, Lignins, Softwoods
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-42468DOI: 10.1016/j.indcrop.2018.02.038Scopus ID: 2-s2.0-85042455336OAI: oai:DiVA.org:ri-42468DiVA, id: diva2:1383823
Note
Funding details: Knut och Alice Wallenbergs Stiftelse; Funding text 1: This study was performed within the Industrial Graduate School VIPP (Values Created in Fibre-Based Processes and Products) with financial support from the Knowledge Foundation and Knut and Alice Wallenberg research foundation , Sweden. Thanks are due to the financial contribution from Domsjö Fabriker and MoRe Research in Örnsköldsvik , Sweden. The authors are also grateful for the support of the project from the Kempe Foundations in Örnsköldsvik, Sweden.
2020-01-082020-01-082021-06-18Bibliographically approved