dc.contributor.author | Baksi, Sibashish | |
dc.contributor.author | Sarkar, Ujjaini | |
dc.contributor.author | Saha, Sudeshna | |
dc.contributor.author | Ball, Akash K. | |
dc.contributor.author | Kuniyal, Jagdish Chandra | |
dc.contributor.author | Wentzel, Alexander | |
dc.contributor.author | Birgen, Cansu | |
dc.contributor.author | Preisig, Heinz A. | |
dc.contributor.author | Wittgens, Bernd | |
dc.contributor.author | Markussen, Sidsel | |
dc.date.accessioned | 2020-03-30T13:57:29Z | |
dc.date.available | 2020-03-30T13:57:29Z | |
dc.date.created | 2019-08-09T10:00:50Z | |
dc.date.issued | 2019 | |
dc.identifier.citation | Chemical Engineering and Processing. 2019, 143 . | en_US |
dc.identifier.issn | 0255-2701 | |
dc.identifier.uri | https://hdl.handle.net/11250/2649474 | |
dc.description.abstract | Delignification 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.language.iso | eng | en_US |
dc.publisher | Elsevier | en_US |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/deed.no | * |
dc.title | Studies on delignification and inhibitory enzyme kinetics of alkaline peroxide pre-treated pine and deodar saw dust | en_US |
dc.type | Journal article | en_US |
dc.type | Peer reviewed | en_US |
dc.description.version | acceptedVersion | en_US |
dc.source.pagenumber | 12 | en_US |
dc.source.volume | 143 | en_US |
dc.source.journal | Chemical Engineering and Processing | en_US |
dc.identifier.doi | 10.1016/j.cep.2019.107607 | |
dc.identifier.cristin | 1714987 | |
dc.relation.project | Norges forskningsråd: 246821 | en_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 http://creativecommons.org/licenses/by-nc-nd/4.0/ | en_US |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.fulltext | postprint | |
cristin.qualitycode | 1 | |