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Evaluating the effect of wood ultrastructural changes from mechanical treatment on kinetics of monomeric sugars and chemicals production in acid bisulfite treatmentAuthor(s): Yalan Liu; Jinwu Wang; Michael P. Wolcott
Source: Bioresource Technology. 226: 24-30.
Publication Series: Scientific Journal (JRNL)
Station: Forest Products Laboratory
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DescriptionCurrently, various chemical-mechanical treatments were widely used in biofuel production to achieve high total sugar yields. However, the interaction between two treatments was scarcely investigated. In this study, we employed a ball milling process to create ultrastructural changes for Douglas-fir (Pseudotsuga menziesii) micronized wood powders. The 0, 30, and 60 min ball milled wood powders resulted in a crystallinity index of 0.41, 0.21, and 0.10 respectively. It was found that the ultrastructural changes accelerate monomeric sugars production without influencing the yield of sugar degradation products. The optimal acid bisulfite treatment time was substantially decreased from 120 min to 40 min as the cellulose crystallinity decreased. Meanwhile, total sugar yield increased from 65% to 92% and had a linear relation with a decrease of the cellulose crystallinity.
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CitationLiu, Yalan; Wang, Jinwu; Wolcott, Michael P. 2017. Evaluating the effect of wood ultrastructural changes from mechanical treatment on kinetics of monomeric sugars and chemicals production in acid bisulfite treatment. Bioresource Technology. 226: 24-30.
KeywordsCrystallinity, kinetics, monomeric sugar, lignosulfonates, sugar degradation, enzymatic hydrolysis
- Increased sugar yield from pre-milled Douglas-fir forest residuals with lower energy consumption by using planetary ball milling
- A co-production of sugars, lignosulfonates, cellulose, and cellulose nanocrystals from ball-milled woods
- Enzymatic hydrolysis of loblolly pine: effects of cellulose crystallinity and delignification
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