Factors that influence the enzymatic hydrolysis of agricultural wastes for ethanol production: a review

Detalhes bibliográficos
Autor(a) principal: Santos, Natasha Kevellyn dos
Data de Publicação: 2022
Outros Autores: Pasquini, Daniel, Baffi, Milla Alves
Tipo de documento: Artigo
Idioma: eng
Título da fonte: The Journal of Engineering and Exact Sciences
Texto Completo: https://periodicos.ufv.br/jcec/article/view/15137
Resumo: Lignocellulosic biomass, such as agricultural and forestry residues, can be reused and serve as sources of sugars for the production of second-generation ethanol (2G) and other bioproducts. However, these wastes are composed by molecules of difficult degradation, which require steps of pretreatment and enzymatic hydrolysis for their bioconversion into fermentable sugars. At the same time, chemical substances with a potential inhibitory effect on the microbial metabolism can also be produced after the pretreatments and hinder the overall yield of the hydrolytic process. For an efficient and low-cost hydrolysis, homemade enzymes produced from agroindustrial residues, such as sugarcane bagasse, can be employed. However, a set of parameters might be adjusted, such as: kind of pretreatment, enzyme load, solids load, hydrolysis time and use of additives, to improve the yields in free sugars using these onsite enzymatic preparations. In this sense, studies involving the optimization of the conditions of pretreatment and saccharification are essential to increase the bioconversion rate of lignocellulose. These strategies are important for the production of value-added products from these wastes and, consequently, offer a correct and profitable destination to them. Hence, this study presents a review of the main features that influence the enzymatic hydrolysis of agricultural wastes and the yield in reducing sugars for ethanol production.
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spelling Factors that influence the enzymatic hydrolysis of agricultural wastes for ethanol production: a reviewFactores que influyen en la hidrólisis enzimática de residuos agrícolas para la producción de etanol: una revisiónFatores que influenciam a hidrólise enzimática de resíduos agrícolas para produção de etanol: uma revisãoAgricultural Wastes.Lignocellulose.Pretreatment.Hydrolysis.Homemade Enzymes.Residuos Agrícolas.Lignocelulose.Pré-tratamento.Hidrólise.Enzimas Caseiras.Residuos Agrícolas.Lignocelulosa.Pretratamiento.Hidrólisis.Enzimas Caseras.Lignocellulosic biomass, such as agricultural and forestry residues, can be reused and serve as sources of sugars for the production of second-generation ethanol (2G) and other bioproducts. However, these wastes are composed by molecules of difficult degradation, which require steps of pretreatment and enzymatic hydrolysis for their bioconversion into fermentable sugars. At the same time, chemical substances with a potential inhibitory effect on the microbial metabolism can also be produced after the pretreatments and hinder the overall yield of the hydrolytic process. For an efficient and low-cost hydrolysis, homemade enzymes produced from agroindustrial residues, such as sugarcane bagasse, can be employed. However, a set of parameters might be adjusted, such as: kind of pretreatment, enzyme load, solids load, hydrolysis time and use of additives, to improve the yields in free sugars using these onsite enzymatic preparations. In this sense, studies involving the optimization of the conditions of pretreatment and saccharification are essential to increase the bioconversion rate of lignocellulose. These strategies are important for the production of value-added products from these wastes and, consequently, offer a correct and profitable destination to them. Hence, this study presents a review of the main features that influence the enzymatic hydrolysis of agricultural wastes and the yield in reducing sugars for ethanol production.La biomasa lignocelulósica, como los residuos agrícolas y forestales, puede reutilizarse y servir como fuente de azúcares para la producción de etanol de segunda generación (2G) y otros bioproductos. Sin embargo, estos residuos están compuestos por moléculas de difícil degradación, que requieren etapas de pretratamiento e hidrólisis enzimática para su bioconversión en azúcares fermentables. Al mismo tiempo, las sustancias químicas con un efecto inhibidor potencial sobre el metabolismo microbiano también se pueden producir después de los pretratamientos y perjudicar el rendimiento general del proceso hidrolítico. Para una hidrólisis eficiente y de bajo costo se pueden utilizar enzimas caseras producidas a partir de residuos agroindustriales, como el bagazo de caña de azúcar. Sin embargo, se puede ajustar un conjunto de parámetros, tales como: tipo de pretratamiento, carga enzimática, carga sólida, tiempo de hidrólisis y uso de aditivos, para mejorar los rendimientos de azúcares libres utilizando estos preparados enzimáticos in situ. En este sentido, los estudios que involucran la optimización de las condiciones de pretratamiento y sacarificación son esenciales para aumentar la tasa de bioconversión de la lignocelulosa. Estas estrategias son importantes para la producción de productos con valor agregado a partir de estos residuos y, en consecuencia, ofrecer un destino correcto y rentable para los mismos. Por lo tanto, este estudio presenta una revisión de las principales características que influyen en la hidrólisis enzimática de los residuos agrícolas y el rendimiento en azúcares reductores para la producción de etanol.A biomassa lignocelulósica, como resíduos agrícolas e florestais, pode ser reaproveitada e servir como fonte de açúcares para a produção de etanol de segunda geração (2G) e outros bioprodutos. No entanto, esses resíduos são compostos por moléculas de difícil degradação, que requerem etapas de pré-tratamento e hidrólise enzimática para sua bioconversão em açúcares fermentáveis. Ao mesmo tempo, substâncias químicas com potencial efeito inibitório no metabolismo microbiano também podem ser produzidas após os pré-tratamentos e prejudicar o rendimento geral do processo hidrolítico. Para uma hidrólise eficiente e de baixo custo, podem ser empregadas enzimas caseiras produzidas a partir de resíduos agroindustriais, como o bagaço da cana-de-açúcar. No entanto, um conjunto de parâmetros pode ser ajustado, tais como: tipo de pré-tratamento, carga enzimática, carga sólida, tempo de hidrólise e uso de aditivos, para melhorar os rendimentos em açúcares livres usando essas preparações enzimáticas in situ. Nesse sentido, estudos envolvendo a otimização das condições de pré-tratamento e sacarificação são essenciais para aumentar a taxa de bioconversão da lignocelulose. Essas estratégias são importantes para a produção de produtos com valor agregado a partir desses resíduos e, consequentemente, oferecer uma destinação correta e rentável a eles. Portanto, este estudo apresenta uma revisão das principais características que influenciam a hidrólise enzimática de resíduos agrícolas e o rendimento em açúcares redutores para a produção de etanol.Universidade Federal de Viçosa - UFV2022-12-20info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufv.br/jcec/article/view/1513710.18540/jcecvl8iss11pp15137-01eThe Journal of Engineering and Exact Sciences; Vol. 8 No. 11 (2022); 15137-01eThe Journal of Engineering and Exact Sciences; Vol. 8 Núm. 11 (2022); 15137-01eThe Journal of Engineering and Exact Sciences; v. 8 n. 11 (2022); 15137-01e2527-1075reponame:The Journal of Engineering and Exact Sciencesinstname:Universidade Federal de Viçosa (UFV)instacron:UFVenghttps://periodicos.ufv.br/jcec/article/view/15137/7703Copyright (c) 2022 The Journal of Engineering and Exact Scienceshttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessSantos, Natasha Kevellyn dosPasquini, DanielBaffi, Milla Alves2023-02-23T13:29:33Zoai:ojs.periodicos.ufv.br:article/15137Revistahttp://www.seer.ufv.br/seer/rbeq2/index.php/req2/oai2527-10752527-1075opendoar:2023-02-23T13:29:33The Journal of Engineering and Exact Sciences - Universidade Federal de Viçosa (UFV)false
dc.title.none.fl_str_mv Factors that influence the enzymatic hydrolysis of agricultural wastes for ethanol production: a review
Factores que influyen en la hidrólisis enzimática de residuos agrícolas para la producción de etanol: una revisión
Fatores que influenciam a hidrólise enzimática de resíduos agrícolas para produção de etanol: uma revisão
title Factors that influence the enzymatic hydrolysis of agricultural wastes for ethanol production: a review
spellingShingle Factors that influence the enzymatic hydrolysis of agricultural wastes for ethanol production: a review
Santos, Natasha Kevellyn dos
Agricultural Wastes.
Lignocellulose.
Pretreatment.
Hydrolysis.
Homemade Enzymes.
Residuos Agrícolas.
Lignocelulose.
Pré-tratamento.
Hidrólise.
Enzimas Caseiras.
Residuos Agrícolas.
Lignocelulosa.
Pretratamiento.
Hidrólisis.
Enzimas Caseras.
title_short Factors that influence the enzymatic hydrolysis of agricultural wastes for ethanol production: a review
title_full Factors that influence the enzymatic hydrolysis of agricultural wastes for ethanol production: a review
title_fullStr Factors that influence the enzymatic hydrolysis of agricultural wastes for ethanol production: a review
title_full_unstemmed Factors that influence the enzymatic hydrolysis of agricultural wastes for ethanol production: a review
title_sort Factors that influence the enzymatic hydrolysis of agricultural wastes for ethanol production: a review
author Santos, Natasha Kevellyn dos
author_facet Santos, Natasha Kevellyn dos
Pasquini, Daniel
Baffi, Milla Alves
author_role author
author2 Pasquini, Daniel
Baffi, Milla Alves
author2_role author
author
dc.contributor.author.fl_str_mv Santos, Natasha Kevellyn dos
Pasquini, Daniel
Baffi, Milla Alves
dc.subject.por.fl_str_mv Agricultural Wastes.
Lignocellulose.
Pretreatment.
Hydrolysis.
Homemade Enzymes.
Residuos Agrícolas.
Lignocelulose.
Pré-tratamento.
Hidrólise.
Enzimas Caseiras.
Residuos Agrícolas.
Lignocelulosa.
Pretratamiento.
Hidrólisis.
Enzimas Caseras.
topic Agricultural Wastes.
Lignocellulose.
Pretreatment.
Hydrolysis.
Homemade Enzymes.
Residuos Agrícolas.
Lignocelulose.
Pré-tratamento.
Hidrólise.
Enzimas Caseiras.
Residuos Agrícolas.
Lignocelulosa.
Pretratamiento.
Hidrólisis.
Enzimas Caseras.
description Lignocellulosic biomass, such as agricultural and forestry residues, can be reused and serve as sources of sugars for the production of second-generation ethanol (2G) and other bioproducts. However, these wastes are composed by molecules of difficult degradation, which require steps of pretreatment and enzymatic hydrolysis for their bioconversion into fermentable sugars. At the same time, chemical substances with a potential inhibitory effect on the microbial metabolism can also be produced after the pretreatments and hinder the overall yield of the hydrolytic process. For an efficient and low-cost hydrolysis, homemade enzymes produced from agroindustrial residues, such as sugarcane bagasse, can be employed. However, a set of parameters might be adjusted, such as: kind of pretreatment, enzyme load, solids load, hydrolysis time and use of additives, to improve the yields in free sugars using these onsite enzymatic preparations. In this sense, studies involving the optimization of the conditions of pretreatment and saccharification are essential to increase the bioconversion rate of lignocellulose. These strategies are important for the production of value-added products from these wastes and, consequently, offer a correct and profitable destination to them. Hence, this study presents a review of the main features that influence the enzymatic hydrolysis of agricultural wastes and the yield in reducing sugars for ethanol production.
publishDate 2022
dc.date.none.fl_str_mv 2022-12-20
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://periodicos.ufv.br/jcec/article/view/15137
10.18540/jcecvl8iss11pp15137-01e
url https://periodicos.ufv.br/jcec/article/view/15137
identifier_str_mv 10.18540/jcecvl8iss11pp15137-01e
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://periodicos.ufv.br/jcec/article/view/15137/7703
dc.rights.driver.fl_str_mv Copyright (c) 2022 The Journal of Engineering and Exact Sciences
https://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2022 The Journal of Engineering and Exact Sciences
https://creativecommons.org/licenses/by/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal de Viçosa - UFV
publisher.none.fl_str_mv Universidade Federal de Viçosa - UFV
dc.source.none.fl_str_mv The Journal of Engineering and Exact Sciences; Vol. 8 No. 11 (2022); 15137-01e
The Journal of Engineering and Exact Sciences; Vol. 8 Núm. 11 (2022); 15137-01e
The Journal of Engineering and Exact Sciences; v. 8 n. 11 (2022); 15137-01e
2527-1075
reponame:The Journal of Engineering and Exact Sciences
instname:Universidade Federal de Viçosa (UFV)
instacron:UFV
instname_str Universidade Federal de Viçosa (UFV)
instacron_str UFV
institution UFV
reponame_str The Journal of Engineering and Exact Sciences
collection The Journal of Engineering and Exact Sciences
repository.name.fl_str_mv The Journal of Engineering and Exact Sciences - Universidade Federal de Viçosa (UFV)
repository.mail.fl_str_mv
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