Mushroom spent straw: a potential substrate for an ethanol-based biorefinery

Journal of Industrial Microbiology & Biotechnology
Venkatesh BalanBruce E Dale

Abstract

Rice straw (RS) is an important lignocellulosic biomass with nearly 800 million dry tons produced annually worldwide. RS has immense potential as a lignocellulosic feedstock for making renewable fuels and chemicals in a biorefinery. However, because of its natural recalcitrance, RS needs thermochemical treatment prior to further biological processing. Ammonia fiber expansion (AFEX) is a leading biomass pretreatment process utilizing concentrated/liquefied ammonia to pretreat lignocellulosic biomass at moderate temperatures (70-140 degrees C). Previous research has shown improved cellulose and hemicellulose conversions upon AFEX treatment of RS at 2:1 ammonia to biomass (w/w) loading, 40% moisture (dwb) and 90 degrees C. However, there is still scope for further improvement. Fungal pretreatment of lignocellulosics is an important biological pretreatment method that has not received much attention in the past. A few reasons for ignoring fungal-based pretreatments are substantial loss in cellulose and hemicellulose content and longer pretreatment times that reduce overall productivity. However, the sugar loss can be minimized through use of white-rot fungi (e.g. Pleutorus ostreatus) over a much shorter duration of pretreatment tim...Continue Reading

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Citations

Apr 29, 2009·Applied Microbiology and Biotechnology·Cheng ZhongYing-Jin Yuan
Dec 4, 2009·Applied Microbiology and Biotechnology·Carmen Sánchez
Jul 21, 2009·Journal of Industrial Microbiology & Biotechnology·Omoanghe S Isikhuemhen, Nona A Mikiashvilli
Apr 9, 2013·Bioscience, Biotechnology, and Biochemistry·Kenji YamagishiTakashi Watanabe
May 10, 2011·Bioresource Technology·Kenji YamagishiTakashi Watanabe
Dec 18, 2010·Journal of Bioscience and Bioengineering·Yukiko Shinozaki, Hiroko K Kitamoto
Jun 2, 2009·Current Opinion in Biotechnology·Leonardo da Costa SousaBruce E Dale
Sep 1, 2015·Bioresource Technology·Raveendran SindhuAshok Pandey
Feb 7, 2017·Bioresources and Bioprocessing·Adepu Kiran Kumar, Shaishav Sharma
Aug 31, 2020·Folia Microbiologica·Uchenna Y AneleOmoanghe S Isikhuemhen
Apr 11, 2019·PeerJ·Alona S SekanYaroslav Blume
Aug 9, 2017·Biotechnology for Biofuels·Peter RydenPradeep K Malakar
Oct 6, 2020·Bioresource Technology·Mina TajmirriahiKeikhosro Karimi

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