Unrevealing model compounds of soil conditioners impacts on the wheat straw autohydrolysis efficiency and enzymatic hydrolysis

Biotechnology for Biofuels
Xinxing WuQiang Yong

Abstract

Soil-derived exogenous ash (EA) poses a challenge toward lignocellulosic autohydrolysis due to its buffering capacity. Previous works focusing on this phenomenon have failed to also investigate the role that soluble salts, and organic matter plays in this system. Herein, sodium phosphate and sodium humate were employed as model buffering compounds representing soluble salts and organic matter and dosed into a de-ashed wheat straw (DWS) autohydrolysis process to show the potential impacts of WS attached soil conditioners on the WS autohydrolysis efficiency which would further affect the enzymatic digestibility of autohydrolyzed WS. Results showed that with the increasing loadings of sodium phosphate and sodium humate resulted in elevated pH values (from 4.0 to 5.1 and from 4.1 to 4.7, respectively). Meanwhile, the reductions of xylan removal yields from ~ 84.3-61.4% to 72.3-53.0% by loading (1-30 g/L) sodium phosphate and sodium humate during WS autohydrolysis lead to a significant decrease of cellulose accessibilities which finally lead to a reduction of the enzymatic digestibility of autohydrolyzed WS from ~ 75.4-77.2% to 47.3-57.7%. The existence of different types soil conditioner model compounds results in various component...Continue Reading

References

Jul 4, 2001·Environmental Science & Technology·I Christl, R Kretzschmar
Dec 14, 2004·Bioresource Technology·Nathan MosierMichael Ladisch
Aug 18, 2006·Environmental Science & Technology·Brian P Kelleher, Andre J Simpson
Jul 3, 2007·Journal of Colloid and Interface Science·Jonas Pertusatti, Alexandre G S Prado
May 26, 2009·Biotechnology Advances·Nanqi RenLingfang Gao
Aug 12, 2009·Bioresource Technology·Jung Myoung LeeHasan Jameel
Mar 23, 2010·Bioresource Technology·Qing QingCharles E Wyman
Jun 15, 2010·Bioresource Technology·Xiaowen ChenAdriaan van Heiningen
Oct 18, 2012·Bioresource Technology·Magnus WimanGunnar Lidén
Sep 1, 2015·Bioresource Technology·Harifara Rabemanolontsoa, Shiro Saka
Jun 1, 2016·Nature Plants·Eric D RoyStephen Porder
Jun 21, 2017·Bioresource Technology·Robert H NarronHasan Jameel
Aug 25, 2014·Materials·Matheus PolettoAdemir J Zattera

❮ Previous
Next ❯

Citations

Jan 13, 2021·International Journal of Biological Macromolecules·Shuaifeng GuXianghui Zhao

❮ Previous
Next ❯

Methods Mentioned

BETA
acid titration

Related Concepts

Related Feeds

Biofuels (ASM)

Biofuels are produced through contemporary processes from biomass rather than geological processes involved in fossil fuel formation. Examples include biodiesel, green diesel, biogas, etc. Discover the latest research on biofuels in this feed.