Scale-up of optimal mild-acid pretreatment conditions in the production and application of lignocellulosic sugars from wood

2020 ◽  
Vol 9 ◽  
pp. 100361
Author(s):  
Jan Smits ◽  
Marco van Haastert ◽  
Arthur M.C. Janse ◽  
Jos Maas ◽  
Koen de Graaf ◽  
...  
Keyword(s):  
Scale Up ◽  
Acid Pretreatment ◽  
Lignocellulosic Sugars ◽  
Pretreatment Conditions ◽  
Mild Acid

Fast screening of optimal acid-pretreatment conditions in the conversion of wood to lignocellulosic sugars

2019 ◽  
Vol 5 ◽  
pp. 220-229 ◽  
Author(s):  
Jan Smits ◽  
Loes Bevers ◽  
Marco van Haastert ◽  
Roel Wiertz ◽  
Hans Kroon
Keyword(s):  
Acid Pretreatment ◽  
Fast Screening ◽  
Lignocellulosic Sugars ◽  
Pretreatment Conditions

scholarly journals A Process Study of Lactic Acid Production from Phragmites australis Straw by a Thermophilic Bacillus coagulans Strain under Non-Sterilized Conditions

Processes ◽  
2018 ◽  
Vol 6 (10) ◽  
pp. 175 ◽  
Author(s):  
Yuming Zhang ◽  
Mengran Li ◽  
Tian Nie ◽  
Zhihua Ni
Keyword(s):  
Lactic Acid ◽  
Phragmites Australis ◽  
Lactic Acid Production ◽  
Scale Up ◽  
Bacillus Coagulans ◽  
Dilute Acid Pretreatment ◽  
Integrated Process ◽  
Dilute Acid ◽  
Acid Pretreatment ◽  
Process Study

Phragmites australis straw (PAS) is an abundant and renewable wetland lignocellulose. Bacillus coagulans IPE22 is a robust thermophilic strain with pentose-utilizing capability and excellent resistance to growth inhibitors. This work is focused on the process study of lactic acid (LA) production from P. australis lignocellulose which has not been attempted previously. By virtue of thermophilic feature of strain IPE22, two fermentation processes (i.e., separated process and integrated process), were developed and compared under non-sterilized conditions. The integrated process combined dilute-acid pretreatment, hemicellulosic hydrolysates fermentation, and cellulose utilization. Sugars derived from hemicellulosic hydrolysates and cellulose enzymatic hydrolysis were efficiently fermented to LA in a single vessel. Using the integrated process, 41.06 g LA was produced from 100 g dry PAS. The established integrated process results in great savings in terms of time and labor, and the fermentation process under non-sterilized conditions is easy to scale up for economical production of lactic acid from PAS.

Assessing desalination pretreatment conditions towards pilot scale‐up using Box‐Behnken experimental design

2020 ◽  
Author(s):  
Sarra Hout ◽  
Zineb Salem ◽  
Djilali Tassalit ◽  
Zahia Tigrine ◽  
Hanane Aburideh ◽  
...  
Keyword(s):  
Experimental Design ◽  
Scale Up ◽  
Pilot Scale ◽  
Pretreatment Conditions

scholarly journals Understanding mild acid pretreatment of sugarcane bagasse through particle scale modeling

2013 ◽  
Vol 110 (12) ◽  
pp. 3114-3125 ◽  
Author(s):  
Ava A. Greenwood ◽  
Troy W. Farrell ◽  
Ian M. O'Hara
Keyword(s):  
Sugarcane Bagasse ◽  
Acid Pretreatment ◽  
Scale Modeling ◽  
Mild Acid

scholarly journals Generation of Reducing Sugars from Corncob by Magnetic Carbon-Based Solid Acid Pretreatment Combined with In Situ Enzymatic Hydrolysis

2021 ◽  
Author(s):  
Si Lu ◽  
Qiong Wang ◽  
Xiaoman Wang ◽  
Cuiyi Liang ◽  
Juan Fu ◽  
...  
Keyword(s):  
Enzymatic Hydrolysis ◽  
Reducing Sugars ◽  
Solid Acid ◽  
Enzymatic System ◽  
Acid Pretreatment ◽  
Saccharification Efficiency ◽  
Magnetic Carbon ◽  
Pretreatment Conditions ◽  
Carbon Based

Abstract The efficient conversion of hemicellulose and cellulose in lignocellulosic biomass to reducing sugars remains as one major challenge for the development of biorefinery. In this work, corncob saccharification in the aqueous phase was realized efficiently via pretreatment by magnetic carbon-based solid acid (MMCSA) catalyst, combined with the subsequent in situ enzymatic hydrolysis (occurring in the same pretreatment system after MMCSA separation). Under the optimized pretreatment conditions (the ratio of corncob, catalyst and water is 1:1:20 (g:g:mL), 160°C for 20 min) and in situ enzymatic hydrolysis (cellulase loading of 20 FPU / g, 24 h), an xylose yield of 88.77% and an enzymatic digestibility of 91.24% were obtained, respectively. Compared with the traditional enzymatic process, the present in situ enzymatic system has advantages of reduced enzyme loading, water consumption, and improved saccharification efficiency. Thus, this study provides a more sustainable and effective method for the saccharification of hemicellulose and cellulose in the corncob to produce reducing sugars.

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