High solid fed-batch SSF with delayed inoculation for improved production of bioethanol from wheat straw

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22330%2F14%3A43896443" target="_blank" >RIV/60461373:22330/14:43896443 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.fuel.2014.01.020" target="_blank" >http://dx.doi.org/10.1016/j.fuel.2014.01.020</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.fuel.2014.01.020" target="_blank" >10.1016/j.fuel.2014.01.020</a>

Jazyk výsledku

angličtina

Název v původním jazyce

High solid fed-batch SSF with delayed inoculation for improved production of bioethanol from wheat straw

Popis výsledku v původním jazyce

Simultaneous saccharification and fermentation (SSF) of lignocellulosic substrate is limited by low glucose availability in the early stages of SSF, different temperature optima for enzymatic hydrolysis and fermentation, and low ethanol productivity. These were eliminated in this work by carrying out the pre-saccharification step at the optimum temperature for cellulolytic enzymes. When inoculation was delayed for 12 h (dSSF process), ethanol productivity was enhanced and the process was shortened by 60% compared to SSF, while the final ethanol concentration remained the same. Increased loading of acid-pretreated wheat straw in batch mode did not improve the ethanol concentration; although preconcentration of substrate from 36% to 66% of wet solid enabled a 48% increase in glucose concentration it negatively influenced fermentation. The fed-batch dSSF process, with gradual feeding of pre-hydrolysed medium, carried out in two bioreactors, enabled us to increase the final ethanol concent

Název v anglickém jazyce

High solid fed-batch SSF with delayed inoculation for improved production of bioethanol from wheat straw

Popis výsledku anglicky

Simultaneous saccharification and fermentation (SSF) of lignocellulosic substrate is limited by low glucose availability in the early stages of SSF, different temperature optima for enzymatic hydrolysis and fermentation, and low ethanol productivity. These were eliminated in this work by carrying out the pre-saccharification step at the optimum temperature for cellulolytic enzymes. When inoculation was delayed for 12 h (dSSF process), ethanol productivity was enhanced and the process was shortened by 60% compared to SSF, while the final ethanol concentration remained the same. Increased loading of acid-pretreated wheat straw in batch mode did not improve the ethanol concentration; although preconcentration of substrate from 36% to 66% of wet solid enabled a 48% increase in glucose concentration it negatively influenced fermentation. The fed-batch dSSF process, with gradual feeding of pre-hydrolysed medium, carried out in two bioreactors, enabled us to increase the final ethanol concent

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

EI - Biotechnologie a bionika

OECD FORD obor

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Projekt

<a href="/cs/project/ME10146" target="_blank" >ME10146: Konverze obilné slámy a jiných lignocelulosových materiálů na etanol</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Fuel

ISSN

0016-2361

e-ISSN

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Svazek periodika

122

Číslo periodika v rámci svazku

únor

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

7

Strana od-do

294-300

Kód UT WoS článku

000331544100034

EID výsledku v databázi Scopus

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