Cane Pretreatment by Deep Eutetic Solvents to Increase its Reactivity During Enzymatic Hydrolysis with Cellulases
- Autores: Semenova M.V.1, Vasil’eva I.S.1, Yaropolov A.I.1, Sinitsyn A.P.1
- 
							Afiliações: 
							- Federal Research Center “Fundamentals of Biotechnology” of the Russian Academy of Sciences
 
- Edição: Volume 59, Nº 3 (2023)
- Páginas: 253-259
- Seção: Articles
- URL: https://kld-journal.fedlab.ru/0555-1099/article/view/674619
- DOI: https://doi.org/10.31857/S0555109923030169
- EDN: https://elibrary.ru/BELOAR
- ID: 674619
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		                                					Resumo
Cane was pretreated with a number of deep eutectic solvents (DES) based on choline chloride (ChCl) as a hydrogen bond acceptor; among hydrogen bond donors, lactic and oxalic acids (LacA and OxA, respectively) were the most effective. Substrate pretreatment conditions (ratio of DES-components, temperature and exposure time) were optimized, leading to the highest yield of reducing sugars (RS) and glucose during subsequent enzymatic hydrolysis with cellulase preparation based on Penicillium verruculosum. It was been established that in the case of a mixture of ChCl with LacA (the molar ratio of components is 1 : 5) pretreatment should be carried out at 80°С for 24 h, and in the case of a mixture of ChCl with OxA (1 : 1) – at 80°С for 6 hours. The degree of conversion of the pretreated substrate after 48 hours of hydrolysis in the presence of the enzyme preparation (EP) B537 was 80 and 86% by absolutely dry substances for selected mixtures of ChCl/LacA and ChCl/OxA, respectively.
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Sobre autores
M. Semenova
Federal Research Center “Fundamentals of Biotechnology” of the Russian Academy of Sciences
							Autor responsável pela correspondência
							Email: margs@mail.ru
				                					                																			                												                								Russia, 119071, Moscow						
I. Vasil’eva
Federal Research Center “Fundamentals of Biotechnology” of the Russian Academy of Sciences
														Email: margs@mail.ru
				                					                																			                												                								Russia, 119071, Moscow						
A. Yaropolov
Federal Research Center “Fundamentals of Biotechnology” of the Russian Academy of Sciences
														Email: margs@mail.ru
				                					                																			                												                								Russia, 119071, Moscow						
A. Sinitsyn
Federal Research Center “Fundamentals of Biotechnology” of the Russian Academy of Sciences
														Email: margs@mail.ru
				                					                																			                												                								Russia, 119071, Moscow						
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