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dc.contributor.authorBaksi, Sibashish
dc.contributor.authorSarkar, Ujjaini
dc.contributor.authorSaha, Sudeshna
dc.contributor.authorBall, Akash K.
dc.contributor.authorKuniyal, Jagdish Chandra
dc.contributor.authorWentzel, Alexander
dc.contributor.authorBirgen, Cansu
dc.contributor.authorPreisig, Heinz A.
dc.contributor.authorWittgens, Bernd
dc.contributor.authorMarkussen, Sidsel
dc.identifier.citationChemical Engineering and Processing. 2019, 143 .en_US
dc.description.abstractDelignification of lignocellulosic biomass by alkaline peroxide pre-treatment is a preliminary important step for an overall biomass fractionation process. In the present work, saw dusts are pre-treated by aqueous alkaline peroxide solution under different temperatures over a predetermined time. It is seen that Combined Pre-treatment (CP) removes a substantially higher quantity of lignin from biomass under a particular temperature. At elevated temperatures, the extent of delignification is observed much better. The % removal is: [PR: 19.35%(30 °C):25.26%(50 °C):33.30%(100 °C)]; [CD:14.64%(30 °C):23.64%(50 °C): 28.83%(100 °C)]. Batch kinetics is investigated with certain models and corresponding parameters are estimated. As pre-treatment severity is strongly correlated to the pre-treatment temperature, increased value of “potential degree of delignification” is observed at escalated temperatures. Kinetics of enzymatic hydrolysis of delignified biomass shows decreased product inhibition with increased substrate concentration under a particular enzyme loading. Starting with a combination of 50 g/L substrate concentration with an enzyme loading of 13.23 g/L, an optimum concentration of 17.2 g/L and 21.19 g/L of glucose are produced from Pinus roxburghii and Cedrus deodara respectively. Experimental data fit quite well with the competitive inhibition kinetics based theoretical models with r2 ≥0.95. It is inferred that enzymes are competitively inhibited by glucose.en_US
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internasjonal*
dc.titleStudies on delignification and inhibitory enzyme kinetics of alkaline peroxide pre-treated pine and deodar saw dusten_US
dc.typeJournal articleen_US
dc.typePeer revieweden_US
dc.source.journalChemical Engineering and Processingen_US
dc.relation.projectNorges forskningsråd: 246821en_US
dc.description.localcode© 2019. This is the authors’ accepted and refereed manuscript to the article. Locked until 03.08.2021 due to copyright restrictions. This manuscript version is made available under the CC-BY-NC-ND 4.0 license

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Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal
Med mindre annet er angitt, så er denne innførselen lisensiert som Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal