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Description
  • In Czech Republic, wheat straw is a typical lignocellulosic waste but at the same time it can be considered renewable energy feedstock. However, microbial conversion of wheat straw to ethanol or other products is hampered by inefficient hydrolysis of cellulose and its accompanying compounds into usable saccharides. Therefore, an aim of this project is to find out convenient conditions for chemical treatment of lignocellulosic material that open up the cellulose for subsequent enzyme hydrolysis and further utilisation of this hydrolyzed material for a microbial conversion into ethanol. Two types of the conversion will be tested - separate processes of hydrolysis and fermentation and simultaneous saccharification and fermentation (SSF). In the frame of the project, a convenient microbial producer for lignocellulosic hydrolysates will be found, various types of microbial cultivation will be tested and the problem of ethanol concentrating by pervaporation and gas stripping will be studied. (en)
  • Cílem projektu je na základě experimentálních dat navrhnout jednotlivé dílčí kroky, tj. fyzikálně-chemickou úpravu, enzymovou hydrolýzu a mikrobiální fermentaci obilné slámy, eventuelně i jiného lignocelulózového odpadu, na etanol.
Title
  • Conversion of wheat straw and other lignocellulosic materials to ethanol (en)
  • Konverze obilné slámy a jiných lignocelulosových materiálů na etanol
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  • ME10146
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  • lignocellulosic materials; wheat straw; ethanol; enzyme hydrolysis; microbial conversion; simultaneous saccharification and fermentation; SSF; pervaporation; gas stripping (en)
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  • Projekt byl zaměřen na využití odpadních lignocelulózových materiálů jako suroviny pro výrobu bioetanolu druhé generace. V průběhu řešení byla optimalizována předúprava biomasy a podmínky její enzymové hydrolýzy s ohledem na maximální výtěžek zkvasitelných sacharidů. Byl proveden výběr nejvhodnějších mikrobiálních producentů ethanolu a navržen přítokovaný SSF proces výroby bioethanolu. (cs)
  • The project was focused on the exploitation of waste lignocellulose materials as feedstock for production of 2nd generation of bioethanol. The biomass pretreatment and enzyme hydrolysis of cellulose have been optimized to gain maximum yield of fermentable sugars. The suitable microbial producers of bioethanol have been selected and fed-batch SSF process has been designed. (en)
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  • lignocellulosic materials
  • ethanol
  • SSF
  • enzyme hydrolysis
  • microbial conversion
  • pervaporation
  • simultaneous saccharification and fermentation
  • wheat straw
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