scholarly journals Bioethanol Production from Lignocellulosic Biomass Requiring No Sulfuric Acid: Mechanochemical Pretreatment and Enzymic Saccharification

2008 ◽  
Vol 51 (5) ◽  
pp. 264-273 ◽  
Author(s):  
Shinji Fujimoto ◽  
Hiroyuki Inoue ◽  
Shinichi Yano ◽  
Tsuyoshi Sakaki ◽  
Tomoaki Minowa ◽  
...  
Keyword(s):  
Sulfuric Acid ◽  
Lignocellulosic Biomass ◽  
Bioethanol Production ◽  
Mechanochemical Pretreatment ◽  
Enzymic Saccharification

Optimization of Hydrothermal Pretreatment of Lignocellulosic Biomass in the Bioethanol Production Process

ChemSusChem ◽  
2012 ◽  
Vol 6 (1) ◽  
pp. 110-122 ◽  
Author(s):  
Christos K. Nitsos ◽  
Konstantinos A. Matis ◽  
Kostas S. Triantafyllidis
Keyword(s):  
Production Process ◽  
Lignocellulosic Biomass ◽  
Hydrothermal Pretreatment ◽  
Bioethanol Production

scholarly journals Optimized acid hydrolysis of the polysaccharides from the seaweed Solieria filiformis (Kützing) P.W. Gabrielson for bioethanol production

2017 ◽  
Vol 39 (4) ◽  
pp. 423 ◽  
Author(s):  
George Meredite Cunha de Castro ◽  
Norma Maria Barros Benevides ◽  
Maulori Curié Cabral ◽  
Rafael De Souza Miranda ◽  
Enéas Gomes Filho ◽  
...  
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Sulfuric Acid ◽  
Acid Hydrolysis ◽  
Kinetic Parameters ◽  
Renewable Resource ◽  
Bioethanol Production ◽  
Seaweed Species ◽  
Mild Conditions ◽  
Hydrolysis Of ◽  
Solieria Filiformis

 The seaweeds are bio-resource rich in sulfated and neutral polysaccharides. The tropical seaweed species used in this study (Solieria filiformis), after dried, shows 65.8% (w/w) carbohydrate, 9.6% (w/w) protein, 1.7% (w/w) lipid, 7.0% (w/w) moisture and 15.9% (w/w) ash. The dried seaweed was easily hydrolyzed under mild conditions (0.5 M sulfuric acid, 20 min.), generating fermentable monosaccharides with a maximum hydrolysis efficiency of 63.21%. Galactose and glucose present in the hydrolyzed were simultaneously fermented by Saccharomyces cerevisiae when the yeast was acclimated to galactose and cultivated in broth containing only galactose. The kinetic parameters of the fermentation of the seaweed hydrolyzed were Y(P⁄S) = 0.48 ± 0.02 g.g−1, PP = 0.27 ± 0.04 g.L−1.h−1, h = 94.1%, representing a 41% increase in bioethanol productivity. Therefore, S. filiformis was a promising renewable resource of polysaccharides easily hydrolyzed, generating a broth rich in fermentable monosaccharides for ethanol production. 

Industrial Technologies for Bioethanol Production from Lignocellulosic Biomass

2019 ◽  
pp. 61-72
Author(s):  
Amrita Saha ◽  
Soumyak Palei ◽  
Minhajul Abedin ◽  
Bhaswati Uzir
Keyword(s):  
Lignocellulosic Biomass ◽  
Bioethanol Production

Hydrolysis of Lignocellulosic Biomass for Bioethanol Production

Biofuels ◽  
2011 ◽  
pp. 229-250 ◽  
Author(s):  
Parameswaran Binod ◽  
K.U. Janu ◽  
Raveendran Sindhu ◽  
Ashok Pandey
Keyword(s):  
Lignocellulosic Biomass ◽  
Bioethanol Production ◽  
Hydrolysis Of

REALITIES AND PROSPECTS FOR INTENSIFICATION OF BIOETHANOL PRODUCTION DUE TO THE USE OF DISCRETE-PULSE ENERGY INPUT

2020 ◽  
Author(s):  
Oleksandr Obodovych ◽  
◽  
Oleksandr Solovey ◽  
Keyword(s):  
Lignocellulosic Biomass ◽  
Pulse Energy ◽  
Energy Input ◽  
Raw Materials ◽  
Amorphous State ◽  
Human Consumption ◽  
Main Task ◽  
Bioethanol Production ◽  
Reducing Substances ◽  
Forestry Residues

The development of the biofuel industry and the production of bioethanol and using it as a fuel in the world in general and in Ukraine in particular are analyzed in the paper. Bioethanol is mostly produced from sugar- and starch-containing raw materials. It is noted that bioethanol is obtained mainly from molasses in Ukraine. Molasses is a by-product of sugar beet production. The prospects of second-generation bioethanol production made from unfit for human consumption lignocellulosic biomass such as agricultural by-products, forestry residues, municipal waste are considered. Pretreatment of lignocellulosic biomass is the main task in bioethanol production from such raw materials. Partial or complete hydrolysis of hemicellulose and the conversion of crystalline cellulose into an amorphous state are required to destroy the strong structure of the lignocellulosic complex and remove lignin for further processing. The method of Discrete-Pulse Energy Input was used to intensify the production of bioethanol from lignocellulosic biomass. The method allows shortening the duration of pretreatment, hydrolysis and fermentation, increasing the amount of reducing substances in the wort, reducing energy consumption and generally making this technology more economically attractive. The universal heat and mass exchange installation in order to reduce energy and resource consumption in bioethanol production from lignocellulosic biomass is developed at the Institute of Engineering Thermophysics of the NAS of Ukraine. The Installation allows carrying out the processes of dispersion, dissolution, heating, hydrolysis at the same time in one apparatus.

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