Sorption onto chemical pulps

The sorption studies became more and more fundamental and new sophisticated techniques were employed for the purpose. These results will, therefore, be discussed in a new chapter, as they mainly involve the mechanism of sorption. Some additional results of mannan sorption onto chemical pulps will be presented in the section Mannans in mechanical pulping and papermaking . 

Next, we will focus on a laboratory study of mannan sorption onto both mechanical and chemical pulps that are relevant in the production of wood-containing papers, as chemical pulps are often also added as reinforcement fibers. The sorption experiments were performed with GGMs isolated from spruce, or enzymatically modified guar gum GMs. The amount of sorbed mannan was calculated by measuring the amount of mannan left in solution by acidic methanolysis followed by GC analysis. 

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