Xiong, Shaojun
- Department of Forest Biomaterials and Technology, Swedish University of Agricultural Sciences
- Beijing Normal University
Research article2021Peer reviewedOpen access
Chen, Feng; Grimm, Alejandro; Eilertsen, Lill; Martin, Carlos; Arshadi, Mehrdad; Xiong, Shaojun
This study aimed to develop an energy-and resource-efficient process for the coproduction of edible mushroom, fermentable sugar and solid biofuel from wood residues. A promising potential was revealed for wood ear fungus (Auricularia auricular-judae), which yielded about 200 g mushroom per kg dry birch based substrate, with concomitant degradation of 76.8 and 85.7% of lignin and xylan, respectively, in the substrate. Substrate pasteurisation by hot-air (85-100 degrees C) was as effective as by energy intensive autoclaving (121 degrees C), resulting comparable mushroom growth and degradation of lignocellulose. The spent mushroom substrate (SMS) contained 28-33% glucan, which upon analytical enzymatic saccharification released around 46% of the potentially-achievable glucose, corresponding to a 2.3-fold enzymatic digestibility compared with that of the raw substrate. The solid leftover generated after enzymatic hydrolysis revealed high thermal energy value and promising combustion characteristics, showing a plausibility to be recycled as solid fuel for self-supporting energy system and space heating. (C) 2021 Elsevier Ltd. All rights reserved.
Edible mushroom; Energy saving; Biological pretreatment; Bioethanol; Solid biofuel
Renewable Energy
2021, Volume: 170, pages: 172-180
Ensure access to affordable, reliable, sustainable and modern energy for all
Build resilient infrastructure, promote inclusive and sustainable industrialization and foster innovation
Ensure sustainable consumption and production patterns
Renewable Bioenergy Research
DOI: https://doi.org/10.1016/j.renene.2021.01.124
https://res.slu.se/id/publ/110623