scholarly journals Potential inhibitors from wet oxidation of wheat straw and their effect on ethanol production ofSaccharomyces cerevisiae: Wet oxidation and fermentation by yeast

2003 ◽  
Vol 81 (6) ◽  
pp. 738-747 ◽  
Author(s):  
H. B. Klinke ◽  
L. Olsson ◽  
A. B. Thomsen ◽  
B. K. Ahring
Fuel ◽  
2008 ◽  
Vol 87 (17-18) ◽  
pp. 3640-3647 ◽  
Author(s):  
J.A. Pérez ◽  
I. Ballesteros ◽  
M. Ballesteros ◽  
F. Sáez ◽  
M.J. Negro ◽  
...  

2002 ◽  
Vol 82 (1) ◽  
pp. 15-26 ◽  
Author(s):  
Helene B Klinke ◽  
Birgitte K Ahring ◽  
Anette S Schmidt ◽  
Anne Belinda Thomsen

2018 ◽  
Vol 4 ◽  
pp. 50-56 ◽  
Author(s):  
S. Prasad ◽  
Mahesh K. Malav ◽  
S. Kumar ◽  
Anoop Singh ◽  
Deepak Pant ◽  
...  

BioResources ◽  
2020 ◽  
Vol 15 (4) ◽  
pp. 8662-8676
Author(s):  
Maria Mushtaq ◽  
Muhammad Javaid Asad ◽  
Muhammad Zeeshan Hyder ◽  
Syed Muhammad Saqlan Naqvi ◽  
Saad Imran Malik ◽  
...  

Utilization of biomass for production of second generation bioethanol was considered as a way to reduce burdens of fossil fuel in Pakistan. The materials wheat straw, rice straw, cotton stalk, corn stover, and peel wastes were used in this experiment. Various parameters, such as acidic and alkali pretreatment, enzymatic hydrolysis by cellulases, and effect of proteases inhibitors on ethanol production, were examined. Fermentation was completed by the yeasts Saccharomyces cerevisiae and Clostridium thermocellum separately, and their ethanol production were compared and maximum ethanol yield was obtained with wheat straw i.e.,11.3 g/L by S. cerevisiae and 8.5 g/L by C. thermocellum. Results indicated that a higher quantity of sugar was obtained from wheat straw (19.6 ± 1.6 g/L) followed by rice straw (17.6 ± 0.6 g/L) and corn stover (16.1 ± 0.9 g/L) compared to the other evaluated biomass samples. A higher yield of ethanol (11.3 g/L) was observed when a glucose concentration of 21.7 g/L was used, for which yeast fermentation efficiency was 92%. Results also revealed the increased in ethanol production (93%) by using celluases in combination with recombinant Serine protease inhibitors from C. thermocellum. It is expected that the use of recombinant serpins with cellulases will play a major role in the biofuel production by using agricultural biomass. This will also help in the economics of the biofuel.


2006 ◽  
Vol 130 (1-3) ◽  
pp. 496-508 ◽  
Author(s):  
Ignacio Ballesteros ◽  
Ma José Negro ◽  
Jose Miguel Oliva ◽  
Araceli Cabanas ◽  
Paloma Manzanares ◽  
...  

2011 ◽  
Vol 343-344 ◽  
pp. 963-967 ◽  
Author(s):  
Zhang Qiang ◽  
Anne Belinda Thomsen

In order to find out appropriate process for ethanol production from corn stover, wet oxidation(195°C,15 minutes)and simultaneous saccharification and fermentation (SSF) was carried out to produce ethanol. The results showed that the cellulose recovery of 92.9% and the hemicellulose recovery of 74.6% were obtained after pretreatment. 86.5% of cellulose was remained in the solid cake . After 24h hydrolysis at 50°C using cellulase(Cellubrix L),the achieved conversion of cellulose to glucose was 64.8%. Ethanol production was evaluated from dried solid cake and the hydrolysate was employed as liquid fraction . After 142 h of SSF with substrate concentration of 8% (W/V), ethanol yield of 73.1 % of the theoretical based on glucose in the raw material was obtained by S. cerevisiae(ordinary baker’ yeast) . The corresponding ethanol concentration and volumetric productivity were 17.2g/L and 0.121g/L.h respectively. The estimated total ethanol production was 257.7 kg/ton raw material by assuming consumption of both C-6 and C-5. No obvious inhibition effect occurred during SSF. These instructions give you the basic guidelines for preparing papers for WCICA/IEEE conference proceedings.


2011 ◽  
Vol 165 (3-4) ◽  
pp. 1010-1023 ◽  
Author(s):  
Nadja Schultz-Jensen ◽  
Zsófia Kádár ◽  
Anna Belinda Thomsen ◽  
Henrik Bindslev ◽  
Frank Leipold

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