Bioethanol Production from Hydrothermally Pretreated and Delignified Corn Stover by Fed-Batch Simultaneous Saccharification and Fermentation

2014 ◽  
Vol 28 (2) ◽  
pp. 1158-1165 ◽  
Author(s):  
Cristian-Teodor Buruiana ◽  
Camelia Vizireanu ◽  
Gil Garrote ◽  
Juan Carlos Parajó
Keyword(s):  
Corn Stover ◽  
Simultaneous Saccharification And Fermentation ◽  
Bioethanol Production ◽  
Fed Batch ◽  
Simultaneous Saccharification

scholarly journals Efficient fractionation of corn stover by bisulfite pretreatment for the production of bioethanol and high value products

BioResources ◽  
2019 ◽  
Vol 14 (3) ◽  
pp. 6501-6515
Author(s):  
Liping Tan ◽  
Zhongyang Liu ◽  
Tongjun Liu ◽  
Fangfang Wang
Keyword(s):  
Corn Stover ◽  
Simultaneous Saccharification And Fermentation ◽  
Bioethanol Production ◽  
Different Types ◽  
Pretreatment Conditions ◽  
C 30 ◽  
Hemicellulosic Sugars ◽  
Resin Separation ◽  
Simultaneous Saccharification

Fractionation of corn stover (CS) was carried out by bisulfite pretreatment in order to improve the production of bioethanol and high-value chemicals. Firstly, the optimum bisulfite pretreatment conditions of CS (170 C, 30 min, 7% NaHSO3, 1% H2SO4) were identified. Next, a biorefinery process of bisulfite pretreatment for CS was proposed. CS was separated into solid and liquor components using such pretreatment. The solid components were employed for bioethanol production by quasi-simultaneous saccharification and fermentation (Q-SSF). The bisulfite liquor was fractionated into hemicellulosic sugars and lignin by different types of resins. It was shown that CS components could be effectively fractionated through bisulfite pretreatment in combination with resin separation to produce bioethanol, hemicellulosic sugars, and lignosulfonate.

scholarly journals High-Titer Lactic Acid Production by Pediococcus acidilactici PA204 from Corn Stover through Fed-Batch Simultaneous Saccharification and Fermentation

2020 ◽  
Vol 8 (10) ◽  
pp. 1491
Author(s):  
Zhenting Zhang ◽  
Yanan Li ◽  
Jianguo Zhang ◽  
Nan Peng ◽  
Yunxiang Liang ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Corn Stover ◽  
High Efficiency ◽  
Simultaneous Saccharification And Fermentation ◽  
High Titer ◽  
Lactic Acid Production ◽  
Pediococcus Acidilactici ◽  
Fed Batch ◽  
Ssf Process ◽  
Simultaneous Saccharification

Lignocellulose comprised of cellulose and hemicellulose is one of the most abundant renewable feedstocks. Lactic acid bacteria have the ability to ferment sugar derived from lignocellulose. In this study, Pediococcus acidilactici PA204 is a lactic acid bacterium with a high tolerance of temperature and high-efficiency utilization of xylose. We developed a fed-batch simultaneous saccharification and fermentation (SSF) process at 37 °C (pH 6.0) using the 30 FPU (filter paper units)/g cellulase and 20 g/L corn steep powder in a 5 L bioreactor to produce lactic acid (LA). The titer, yield, and productivity of LA produced from 12% (w/w) NaOH-pretreated and washed stover were 92.01 g/L, 0.77 g/g stover, and 1.28 g/L/h, respectively, and those from 15% NaOH-pretreated and washed stover were 104.11 g/L, 0.69 g/g stover, and 1.24 g/L/h, respectively. This study develops a feasible fed-batch SSF process for LA production from corn stover and provides a promising candidate strain for high-titer and -yield lignocellulose-derived LA production.

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