scholarly journals An efficient magnetic carbon-based solid acid treatment for corncob saccharification with high selectivity for xylose and enhanced enzymatic digestibility

2019 ◽  
Vol 21 (6) ◽  
pp. 1292-1304 ◽  
Author(s):  
Wei Qi ◽  
Guifeng Liu ◽  
Chao He ◽  
Shuna Liu ◽  
Si Lu ◽  
...  

An efficient magnetic carbon-based solid acid treatment for corncob saccharification.

2021 ◽  
Author(s):  
Si Lu ◽  
Qiong Wang ◽  
Xiaoman Wang ◽  
Cuiyi Liang ◽  
Juan Fu ◽  
...  

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.


2020 ◽  
Vol 59 (39) ◽  
pp. 17046-17056 ◽  
Author(s):  
Zhiqiang Qi ◽  
Qiong Wang ◽  
Cuiyi Liang ◽  
Jun Yue ◽  
Shuna Liu ◽  
...  

2017 ◽  
Vol 58 (4) ◽  
pp. 414-421 ◽  
Author(s):  
Siyi Zhang ◽  
Junqiao Li ◽  
Genzhong Ji ◽  
Xuezheng Liang

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