Production of bioethanol from corn meal hydrolyzates
Abstract
The two-step enzymatic hydrolysis of corn meal by commercially available a-amylase and glucoamylase and further ethanol fermentation of the obtained hydrolyzates by Saccharomyces cerevisiae yeast was studied. The conditions of starch hydrolysis such as substrate and enzyme concentration and the time required for enzymatic action were optimized taking into account both the effects of hydrolysis and ethanol fermentation. The corn meal hydrolyzates obtained were good substrates for ethanol fermentation by S. cerevisiae. The yield of ethanol of more than 80% (w/w) of the theoretical was achieved with a satisfactory volumetric productivity P (g/l h). No shortage of fermentable sugars was observed during simultaneous hydrolysis and fermentation. In this process, the savings in energy by carrying out the saccharification step at lower temperature (32 degrees C) could be realized, as well as a reduction of the process time for 4 h.
Keywords:
enzymatic starch hydrolysis / corn meal / corn starch / bioethanolSource:
Fuel, 2006, 85, 12-13, 1750-1755Publisher:
- Elsevier Sci Ltd, Oxford
DOI: 10.1016/j.fuel.2006.01.018
ISSN: 0016-2361
WoS: 000238820000016
Scopus: 2-s2.0-33646495041
Institution/Community
Tehnološko-metalurški fakultetTY - JOUR AU - Mojović, Ljiljana AU - Nikolić, Svetlana AU - Rakin, Marica AU - Vukašinović-Sekulić, Maja PY - 2006 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/901 AB - The two-step enzymatic hydrolysis of corn meal by commercially available a-amylase and glucoamylase and further ethanol fermentation of the obtained hydrolyzates by Saccharomyces cerevisiae yeast was studied. The conditions of starch hydrolysis such as substrate and enzyme concentration and the time required for enzymatic action were optimized taking into account both the effects of hydrolysis and ethanol fermentation. The corn meal hydrolyzates obtained were good substrates for ethanol fermentation by S. cerevisiae. The yield of ethanol of more than 80% (w/w) of the theoretical was achieved with a satisfactory volumetric productivity P (g/l h). No shortage of fermentable sugars was observed during simultaneous hydrolysis and fermentation. In this process, the savings in energy by carrying out the saccharification step at lower temperature (32 degrees C) could be realized, as well as a reduction of the process time for 4 h. PB - Elsevier Sci Ltd, Oxford T2 - Fuel T1 - Production of bioethanol from corn meal hydrolyzates EP - 1755 IS - 12-13 SP - 1750 VL - 85 DO - 10.1016/j.fuel.2006.01.018 ER -
@article{ author = "Mojović, Ljiljana and Nikolić, Svetlana and Rakin, Marica and Vukašinović-Sekulić, Maja", year = "2006", abstract = "The two-step enzymatic hydrolysis of corn meal by commercially available a-amylase and glucoamylase and further ethanol fermentation of the obtained hydrolyzates by Saccharomyces cerevisiae yeast was studied. The conditions of starch hydrolysis such as substrate and enzyme concentration and the time required for enzymatic action were optimized taking into account both the effects of hydrolysis and ethanol fermentation. The corn meal hydrolyzates obtained were good substrates for ethanol fermentation by S. cerevisiae. The yield of ethanol of more than 80% (w/w) of the theoretical was achieved with a satisfactory volumetric productivity P (g/l h). No shortage of fermentable sugars was observed during simultaneous hydrolysis and fermentation. In this process, the savings in energy by carrying out the saccharification step at lower temperature (32 degrees C) could be realized, as well as a reduction of the process time for 4 h.", publisher = "Elsevier Sci Ltd, Oxford", journal = "Fuel", title = "Production of bioethanol from corn meal hydrolyzates", pages = "1755-1750", number = "12-13", volume = "85", doi = "10.1016/j.fuel.2006.01.018" }
Mojović, L., Nikolić, S., Rakin, M.,& Vukašinović-Sekulić, M.. (2006). Production of bioethanol from corn meal hydrolyzates. in Fuel Elsevier Sci Ltd, Oxford., 85(12-13), 1750-1755. https://doi.org/10.1016/j.fuel.2006.01.018
Mojović L, Nikolić S, Rakin M, Vukašinović-Sekulić M. Production of bioethanol from corn meal hydrolyzates. in Fuel. 2006;85(12-13):1750-1755. doi:10.1016/j.fuel.2006.01.018 .
Mojović, Ljiljana, Nikolić, Svetlana, Rakin, Marica, Vukašinović-Sekulić, Maja, "Production of bioethanol from corn meal hydrolyzates" in Fuel, 85, no. 12-13 (2006):1750-1755, https://doi.org/10.1016/j.fuel.2006.01.018 . .