Home About Browse Search
Svenska


Spent mushroom substrates for ethanol production – Effect of chemical and structural factors on enzymatic saccharification and ethanolic fermentation of Lentinula edodes-pretreated hardwood

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]

[img] PDF
3MB

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
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:
Type of IDID
DOI10.1016/j.biortech.2021.126381
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

Repository Staff Only: item control page

Downloads

Downloads per year (since September 2012)

View more statistics

Downloads
Hits