Enhanced cellulase recovery without β-glucosidase supplementation for cellulosic ethanol production using an engineered strain and surfactant

2016 ◽  
Vol 114 (3) ◽  
pp. 543-551 ◽  
Author(s):  
Renliang Huang ◽  
Hong Guo ◽  
Rongxin Su ◽  
Wei Qi ◽  
Zhimin He
Keyword(s):  
Ethanol Production ◽  
Cellulosic Ethanol ◽  
Cellulase Recovery ◽  
Engineered Strain

scholarly journals Hemicellulosic Bioethanol Production from Fast-Growing Paulownia Biomass

Processes ◽  
2021 ◽  
Vol 9 (1) ◽  
pp. 173
Author(s):  
Elena Domínguez ◽  
Pablo G. del Río ◽  
Aloia Romaní ◽  
Gil Garrote ◽  
Lucília Domingues
Keyword(s):  
Ethanol Production ◽  
Ethanol Concentration ◽  
Ethanol Yield ◽  
Xylose Reductase ◽  
Energy Crop ◽  
Scheffersomyces Stipitis ◽  
Fractionation Process ◽  
Renewable Source ◽  
Fast Growing ◽  
Engineered Strain

In order to exploit a fast-growing Paulownia hardwood as an energy crop, a xylose-enriched hydrolysate was obtained in this work to increase the ethanol concentration using the hemicellulosic fraction, besides the already widely studied cellulosic fraction. For that, Paulownia elongata x fortunei was submitted to autohydrolysis treatment (210 °C or S0 of 4.08) for the xylan solubilization, mainly as xylooligosaccharides. Afterwards, sequential stages of acid hydrolysis, concentration, and detoxification were evaluated to obtain fermentable sugars. Thus, detoxified and non-detoxified hydrolysates (diluted or not) were fermented for ethanol production using a natural xylose-consuming yeast, Scheffersomyces stipitis CECT 1922, and an industrial Saccharomyces cerevisiae MEC1133 strain, metabolic engineered strain with the xylose reductase/xylitol dehydrogenase pathway. Results from fermentation assays showed that the engineered S. cerevisiae strain produced up to 14.2 g/L of ethanol (corresponding to 0.33 g/g of ethanol yield) using the non-detoxified hydrolysate. Nevertheless, the yeast S. stipitis reached similar values of ethanol, but only in the detoxified hydrolysate. Hence, the fermentation data prove the suitability and robustness of the engineered strain to ferment non-detoxified liquor, and the appropriateness of detoxification of liquor for the use of less robust yeast. In addition, the success of hemicellulose-to-ethanol production obtained in this work shows the Paulownia biomass as a suitable renewable source for ethanol production following a suitable fractionation process within a biorefinery approach.

Production and Application of Lignin-Based Chemicals and Materials in the Cellulosic Ethanol Production: An Overview on Lignin Closed-Loop Biorefinery Approaches

2021 ◽  
Author(s):  
Carlos Eduardo de Araújo Padilha ◽  
Cleitiane da Costa Nogueira ◽  
Bárbara Ribeiro Alves Alencar ◽  
Íthalo Barbosa Silva de Abreu ◽  
Emmanuel Damilano Dutra ◽  
...  
Keyword(s):  
Ethanol Production ◽  
Cellulosic Ethanol ◽  
Closed Loop

Cellulosic ethanol production by combination of cellulase-displaying yeast cells

2012 ◽  
Vol 51 (6-7) ◽  
pp. 366-372 ◽  
Author(s):  
Seung-Ho Baek ◽  
Sujin Kim ◽  
Kyusung Lee ◽  
Jung-Kul Lee ◽  
Ji-Sook Hahn
Keyword(s):  
Ethanol Production ◽  
Cellulosic Ethanol ◽  
Yeast Cells

scholarly journals Utilization of Agro-Industrial Residues and Municipal Waste of Plant Origin for Cellulosic Ethanol Production

2011 ◽  
Vol 02 (10) ◽  
pp. 1303-1309 ◽  
Author(s):  
Fabiano A. Gonçalves ◽  
Eliana J. Sanjinez-Argandoña ◽  
Gustavo G. Fonseca
Keyword(s):  
Ethanol Production ◽  
Cellulosic Ethanol ◽  
Municipal Waste ◽  
Plant Origin ◽  
Industrial Residues

scholarly journals Analysis of a Modern Hybrid and an Ancient Sugarcane Implicates a Complex Interplay of Factors in Affecting Recalcitrance to Cellulosic Ethanol Production

PLoS ONE ◽  
2015 ◽  
Vol 10 (8) ◽  
pp. e0134964 ◽  
Author(s):  
Viviane Guzzo de Carli Poelking ◽  
Andrea Giordano ◽  
Maria Esther Ricci-Silva ◽  
Thomas Christopher Rhys Williams ◽  
Diego Alves Peçanha ◽  
...  
Keyword(s):  
Ethanol Production ◽  
Cellulosic Ethanol ◽  
Complex Interplay

scholarly journals Commercial Ethanol Production From Cellulosic Biomass in South Florida

2008 ◽  
Author(s):  
Craig Evans
Keyword(s):  
Ethanol Production ◽  
Cellulosic Ethanol ◽  
The State ◽  
South Florida ◽  
Department Of Energy ◽  
Cellulosic Biomass ◽  
Citrus Peel ◽  
Loan Guarantee ◽  
The U.S ◽  
Carbon Based

Alico Energy, LLC, a subsidiary of Alico, Inc., has been awarded a grant from the State of Florida under the Florida Energy Act and a grant and loan guarantee from the U.S. Department of Energy to construct one of the nation’s first cellulosic ethanol facilities in South Florida. The Alico Energy biorefinery will be capable of co-producing ethanol and electricity from any carbon-based feedstock or waste, including citrus peel, and trimmings from citrus trees. The initial plant will produce only ethanol. The capacity to produce electricity will be added at a later date. Paper published with permission.

Sign in / Sign up

Export Citation Format

Share Document