<abstract xmlns="http://www.w3.org/1999/xhtml"><p>This study proposes a method for the production of ethanol from wheat straw lignocellulose where the raw material is chemically processed before hydrolysis and fermentation. The usefulness of wheat straw delignification was evaluated with the use of a 4:1 mixture of 95% ethanol and 65% HNO<sub>3</sub> (V). Chemically processed lignocellulose was subjected to enzymatic hydrolysis to produce reducing sugars, which were converted to ethanol in the process of alcoholic fermentation. Chemical processing damages the molecular structure of wheat straw, thus improving ethanol yield. The removal of lignin from straw improves fermentation by eliminating lignin’s negative influence on the growth and viability of yeast cells. Straw pretreatment facilitates enzymatic hydrolysis by increasing the content of reducing sugars and ethanol per g in comparison with untreated wheat straw.</p></abstract>

This study proposes a method for the production of ethanol from wheat straw lignocellulose where the raw material is chemically processed before hydrolysis and fermentation. The usefulness of wheat straw delignification was evaluated with the use of a 4:1 mixture of 95% ethanol and 65% HNO3 (V). Chemically processed lignocellulose was subjected to enzymatic hydrolysis to produce reducing sugars, which were converted to ethanol in the process of alcoholic fermentation. Chemical processing damages the molecular structure of wheat straw, thus improving ethanol yield. The removal of lignin from straw improves fermentation by eliminating lignin’s negative influence on the growth and viability of yeast cells. Straw pretreatment facilitates enzymatic hydrolysis by increasing the content of reducing sugars and ethanol per g in comparison with untreated wheat straw.

Production of ethanol from wheat straw

Koszalin University of Technology, Department of Biochemistry and Biotechnology, ul. Racławicka 15-17, 75-620 Koszalin, Poland

Koszalin University of Technology, Department of Food Industry Processes and Facilities, ul. Racławicka 15-17, 75-620 Koszalin, Poland

Warsaw University of Life Sciences, Department of Production Management and Engineering, ul. Nowoursynowska 166, 02-787 Warsaw, Poland

Wrocław University of Environmental and Life Sciences, Institute of Agricultural Engineering, ul. Chełmońskiego 37/41, 51-630 Wrocław, Poland

Polish Journal of Chemical Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"Production of ethanol from wheat straw"}

This study proposes a method for the production of ethanol from wheat straw lignocellulose where the raw material is chemically processed before hydrolysis and...

Production of ethanol from wheat straw

Published Online: Sep 19, 2015

Page range: 89 - 94

DOI: https://doi.org/10.1515/pjct-2015-0055

Keywords
wheat straw, chemical processing, enzymatic hydrolysis, reducing sugars, ethanol

© Małgorzata Smuga-Kogut et al.

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Production of ethanol from wheat straw

Published Online: Sep 19, 2015

Page range: 89 - 94

DOI: https://doi.org/10.1515/pjct-2015-0055

Keywordswheat straw, chemical processing, enzymatic hydrolysis, reducing sugars, ethanol

© Małgorzata Smuga-Kogut et al.

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
wheat straw, chemical processing, enzymatic hydrolysis, reducing sugars, ethanol