Chen, Feng and Xiong, Shaojun and Gandla, Madhavi Latha and Stagge, Stefan and Martín, Carlos
(2021).
Spent mushroom substrates for ethanol production – Effect of chemical and structural factors on enzymatic saccharification and ethanolic fermentation of Lentinula edodes-pretreated hardwood.
Bioresource Technology
, 126381
[Research article]
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Abstract
Spent mushroom substrates (SMS) from cultivation of shiitake (Lentinula edodes) on three hardwood species were investigated regarding their potential for cellulose saccharification and for ethanolic fermentation of the produced hydrolysates. High glucan digestibility was achieved during enzymatic saccharification of the SMSs, which was related to the low mass fractions of lignin and xylan, and it was neither affected by the relative content of lignin guaiacyl units nor the substrate crystallinity. The high nitrogen content in SMS hydrolysates, which was a consequence of the fungal pretreatment, was positive for the fermentation, and it ensured ethanol yields corresponding to 84–87% of the theoretical value in fermentations without nutrient supplementation. Phenolic compounds and acetic acid were detected in the SMS hydrolysates, but due to their low concentrations, the inhibitory effect was limited. The solid leftovers resulting from SMS hydrolysis and the fermentation residues were quantified and characterized for further valorisation.
Authors/Creators: | Chen, Feng and Xiong, Shaojun and Gandla, Madhavi Latha and Stagge, Stefan and Martín, Carlos | ||||
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Title: | Spent mushroom substrates for ethanol production – Effect of chemical and structural factors on enzymatic saccharification and ethanolic fermentation of Lentinula edodes-pretreated hardwood | ||||
Series Name/Journal: | Bioresource Technology | ||||
Year of publishing : | 2021 | ||||
Article number: | 126381 | ||||
Number of Pages: | 12 | ||||
ISSN: | 0960-8524 | ||||
Language: | English | ||||
Publication Type: | Research article | ||||
Article category: | Scientific peer reviewed | ||||
Version: | Published version | ||||
Copyright: | Creative Commons: Attribution-Noncommercial-No Derivative Works 4.0 | ||||
Full Text Status: | Public | ||||
Subjects: | (A) Swedish standard research categories 2011 > 2 Engineering and Technology > 209 Industrial Biotechnology > Biocatalysis and Enzyme Technology | ||||
Keywords: | Cellulosic ethanol, Biological pretreatment, Nitrogen, Microbial inhibitors, Resource efficiency | ||||
URN:NBN: | urn:nbn:se:slu:epsilon-p-114728 | ||||
Permanent URL: | http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-114728 | ||||
Additional ID: |
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ID Code: | 27277 | ||||
Faculty: | S - Faculty of Forest Sciences | ||||
Department: | (S) > Department of Forest Biomaterials and Technology | ||||
Deposited By: | SLUpub Connector | ||||
Deposited On: | 09 Mar 2022 08:25 | ||||
Metadata Last Modified: | 09 Mar 2022 08:31 |
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