Enhanced butanol production from ammonium sulfite pretreated wheat straw by separate hydrolysis and fermentation and simultaneous saccharification and fermentation

2019 ◽  
Vol 36 ◽  
pp. 100549
Author(s):  
Gaoxiang Qi ◽  
Dongmei Huang ◽  
Jianhui Wang ◽  
Yu Shen ◽  
Xu Gao
Keyword(s):  
Wheat Straw ◽  
Simultaneous Saccharification And Fermentation ◽  
Butanol Production ◽  
Separate Hydrolysis And Fermentation ◽  
Ammonium Sulfite ◽  
Pretreated Wheat Straw ◽  
Simultaneous Saccharification

scholarly journals Bioconversion of pretreated wheat straw to ethanol by Monascus purpureus CBS 109.07 and Fusarium venenatum ATCC 20334 using simultaneous saccharification and fermentation

2019 ◽  
Vol 20 (8) ◽  
Author(s):  
David Yudianto ◽  
ELLYAS ALGA NAINGGOLAN ◽  
Ria Millati ◽  
Chusnul Hidayat ◽  
Patrik Lennartsson ◽  
...  
Keyword(s):  
Sulfuric Acid ◽  
Wheat Straw ◽  
Simultaneous Saccharification And Fermentation ◽  
Monascus Purpureus ◽  
Ethanol Yields ◽  
Fusarium Venenatum ◽  
Ssf Process ◽  
Pretreated Wheat Straw ◽  
Solid Liquid ◽  
Simultaneous Saccharification

Abstract. Yudianto D, Nainggolan EA, Millati R, Hidayat C, Lennartsson P, Taherzadeh MJ, Niklasson C. 2019. Bioconversion of pretreated wheat straw to ethanol by Monascus purpureus CBS 109.07 and Fusarium venenatum ATCC 20334 using simultaneous saccharification and fermentation. 20: 2229-2235. Fractions of sulfuric acid-pretreated wheat straw, i.e. solid, liquid, and a mixture of liquid and solid were used as substrates in simultaneous saccharification and fermentation (SSF) process to produce ethanol. The bioconversion was performed by Monascus purpureus CBS 109.07 and Fusarium venenatum ATCC 20334. The highest ethanol yields from solid, liquid and a mixture of solid and liquid fractions by M. purpureus CBS 109.07 were 0.36, 0.41, and 0.37 g/g glucose, respectively. The corresponding values by F. venenatum ATCC 20334 were 0.21, 0.54, 0.35 g/g glucose, respectively.

Optimization of Process Parameters for Ethanol Production from Alkaline-Pretreated Wheat Straw by Fed-Batch Simultaneous Saccharification and Fermentation

2011 ◽  
Vol 236-238 ◽  
pp. 922-925
Author(s):  
Chun Chang ◽  
Gui Zhuan Xu ◽  
Xiao Jian Ma
Keyword(s):  
Ethanol Production ◽  
Wheat Straw ◽  
Simultaneous Saccharification And Fermentation ◽  
Ethanol Concentration ◽  
Raw Materials ◽  
Feeding Strategy ◽  
Tween 20 ◽  
Fed Batch ◽  
Pretreated Wheat Straw ◽  
Simultaneous Saccharification

The alkaline-pretreated wheat straw was used as raw materials, and the fed-batch simultaneous saccharification and fermentation (SSF) process for ethanol production with higher substrate loading (up to 16% (w/v)) was investigated. Firstly, the Fed-batch SSF with different feeding strategy was optimized. The highest ethanol concentration reached to 37.9 g/L with an initial substrate loading of 10% (w/v), and equal substrate addition (3%) at 8h and 16h respectively. Then the effects of Tween-20 were also investigated. The results showed that Tween-20 addition with 2.0 g/L can improved the ethanol production. Furthermore, a nonisothermal fed-batch SSF was proposed, and the ethanol concentration of 41.5 g/L, corresponds to 81.0 % of the theoretical yield was achieved within 72 h.

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