Agro-industrial residues in biotechnological production of xylitol
Autor(a) principal: | |
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Data de Publicação: | 2004 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Semina. Ciências Agrárias (Online) |
Texto Completo: | https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/2258 |
Resumo: | Lignocellulosic residues, such as sugarcane bagasse, rice and oat straw and forest cuttings, are abundant and inexpensive sources of carbohydrates (cellulose and hemicellulose) with potential application in several conversion processes. Xylose, the predominant sugar in the hemicellulose fraction can be converted to xylitol. Xylitol is a polyol with some interesting properties that can make it an important product for the food and pharmaceutical industry. It is a compound with sweetness similar to that sucrose, is non-cariogenic, tolerated by diabetics and recommended for obese people. This polyol is currently produced by chemical catalysis of the xylose from lignocellulosic residues. However, this process needs expensive purification steps to obtain pure xylitol. Alternatively, it can be produced by biotechnological methods, using microorganisms, specially yeasts. These processes consist of hemicellulosic hydrolysate fermentation from agro-industrial residues, wich could compete with the traditional chemical method. The present work aims the accomplishment of a review about xylitol detaching the structural aspects, ways of attainment and applications; main hemicellulosic substrates used in its production; acid hydrolysis and treatment of the hemicellulosic hydrolysate for use as substrate to produce xylitol by microbial way. |
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Semina. Ciências Agrárias (Online) |
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Agro-industrial residues in biotechnological production of xylitolResíduos agroindustriais para produção biotecnológica de xilitolLignocellulosic residuesAcid hydrolysisHemicellulosic hydrolysateHidrolysate treatmentFermentationXylitol.Resíduos lignocelulósicosHidrólise ácidaHidrolisado hemicelulósicoTratamento do hidrolisadoFermentaçãoXilitol.Lignocellulosic residues, such as sugarcane bagasse, rice and oat straw and forest cuttings, are abundant and inexpensive sources of carbohydrates (cellulose and hemicellulose) with potential application in several conversion processes. Xylose, the predominant sugar in the hemicellulose fraction can be converted to xylitol. Xylitol is a polyol with some interesting properties that can make it an important product for the food and pharmaceutical industry. It is a compound with sweetness similar to that sucrose, is non-cariogenic, tolerated by diabetics and recommended for obese people. This polyol is currently produced by chemical catalysis of the xylose from lignocellulosic residues. However, this process needs expensive purification steps to obtain pure xylitol. Alternatively, it can be produced by biotechnological methods, using microorganisms, specially yeasts. These processes consist of hemicellulosic hydrolysate fermentation from agro-industrial residues, wich could compete with the traditional chemical method. The present work aims the accomplishment of a review about xylitol detaching the structural aspects, ways of attainment and applications; main hemicellulosic substrates used in its production; acid hydrolysis and treatment of the hemicellulosic hydrolysate for use as substrate to produce xylitol by microbial way.Resíduos lignocelulósicos tais como bagaço de cana-de-açúcar, palha de arroz, casca de aveia e resíduos florestais representam fontes abundantes e não dispendiosas de carboidratos (celulose e hemicelulose) com potencial aplicação em processos de conversão química ou microbiana em produtos de interesse comercial. Xilose, o açúcar predominante na fração hemicelulósica pode ser convertido em xilitol. O xilitol é um poliol com propriedades físico-química importantes para as indústrias alimentícia e farmacêutica. É um composto com doçura semelhante à da sacarose, anticariogênico, tolerado por diabéticos e recomendado para pessoas obesas. Este poliol é produzido ,em grande escala, por hidrogenação catalítica da xilose presente em hidrolisados lignocelulósicos, porém as soluções obtidas por este processo requerem onerosos passos de purificação para obtenção do xilitol puro. Alternativamente, pode ser produzido por métodos biotecnológicos utilizando leveduras e/ou enzimas. Tais processos consistem na fermentação de hidrolisados hemicelulósicos de resíduos agroindustriais, e podem competir com o tradicional processo químico. O presente trabalho teve como objetivo a realização de uma revisão bibliográfica sobre xilitol destacando os aspectos estruturais, as vias de obtenção e aplicações, principais substratos hemicelulósicos empregados em sua produção, hidrólise ácida e tratamento do hidrolisado hemicelulósico para utilização como substrato na obtenção de xilitol por via microbiana.UEL2004-05-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/225810.5433/1679-0359.2004v25n4p315Semina: Ciências Agrárias; Vol. 25 No. 4 (2004); 315-330Semina: Ciências Agrárias; v. 25 n. 4 (2004); 315-3301679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELporhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/2258/1938Tamanini, CarolinaHauly, Maria Celia de Oliveirainfo:eu-repo/semantics/openAccess2010-03-17T17:49:01Zoai:ojs.pkp.sfu.ca:article/2258Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2010-03-17T17:49:01Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false |
dc.title.none.fl_str_mv |
Agro-industrial residues in biotechnological production of xylitol Resíduos agroindustriais para produção biotecnológica de xilitol |
title |
Agro-industrial residues in biotechnological production of xylitol |
spellingShingle |
Agro-industrial residues in biotechnological production of xylitol Tamanini, Carolina Lignocellulosic residues Acid hydrolysis Hemicellulosic hydrolysate Hidrolysate treatment Fermentation Xylitol. Resíduos lignocelulósicos Hidrólise ácida Hidrolisado hemicelulósico Tratamento do hidrolisado Fermentação Xilitol. |
title_short |
Agro-industrial residues in biotechnological production of xylitol |
title_full |
Agro-industrial residues in biotechnological production of xylitol |
title_fullStr |
Agro-industrial residues in biotechnological production of xylitol |
title_full_unstemmed |
Agro-industrial residues in biotechnological production of xylitol |
title_sort |
Agro-industrial residues in biotechnological production of xylitol |
author |
Tamanini, Carolina |
author_facet |
Tamanini, Carolina Hauly, Maria Celia de Oliveira |
author_role |
author |
author2 |
Hauly, Maria Celia de Oliveira |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Tamanini, Carolina Hauly, Maria Celia de Oliveira |
dc.subject.por.fl_str_mv |
Lignocellulosic residues Acid hydrolysis Hemicellulosic hydrolysate Hidrolysate treatment Fermentation Xylitol. Resíduos lignocelulósicos Hidrólise ácida Hidrolisado hemicelulósico Tratamento do hidrolisado Fermentação Xilitol. |
topic |
Lignocellulosic residues Acid hydrolysis Hemicellulosic hydrolysate Hidrolysate treatment Fermentation Xylitol. Resíduos lignocelulósicos Hidrólise ácida Hidrolisado hemicelulósico Tratamento do hidrolisado Fermentação Xilitol. |
description |
Lignocellulosic residues, such as sugarcane bagasse, rice and oat straw and forest cuttings, are abundant and inexpensive sources of carbohydrates (cellulose and hemicellulose) with potential application in several conversion processes. Xylose, the predominant sugar in the hemicellulose fraction can be converted to xylitol. Xylitol is a polyol with some interesting properties that can make it an important product for the food and pharmaceutical industry. It is a compound with sweetness similar to that sucrose, is non-cariogenic, tolerated by diabetics and recommended for obese people. This polyol is currently produced by chemical catalysis of the xylose from lignocellulosic residues. However, this process needs expensive purification steps to obtain pure xylitol. Alternatively, it can be produced by biotechnological methods, using microorganisms, specially yeasts. These processes consist of hemicellulosic hydrolysate fermentation from agro-industrial residues, wich could compete with the traditional chemical method. The present work aims the accomplishment of a review about xylitol detaching the structural aspects, ways of attainment and applications; main hemicellulosic substrates used in its production; acid hydrolysis and treatment of the hemicellulosic hydrolysate for use as substrate to produce xylitol by microbial way. |
publishDate |
2004 |
dc.date.none.fl_str_mv |
2004-05-30 |
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://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/2258 10.5433/1679-0359.2004v25n4p315 |
url |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/2258 |
identifier_str_mv |
10.5433/1679-0359.2004v25n4p315 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/2258/1938 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
UEL |
publisher.none.fl_str_mv |
UEL |
dc.source.none.fl_str_mv |
Semina: Ciências Agrárias; Vol. 25 No. 4 (2004); 315-330 Semina: Ciências Agrárias; v. 25 n. 4 (2004); 315-330 1679-0359 1676-546X reponame:Semina. Ciências Agrárias (Online) instname:Universidade Estadual de Londrina (UEL) instacron:UEL |
instname_str |
Universidade Estadual de Londrina (UEL) |
instacron_str |
UEL |
institution |
UEL |
reponame_str |
Semina. Ciências Agrárias (Online) |
collection |
Semina. Ciências Agrárias (Online) |
repository.name.fl_str_mv |
Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL) |
repository.mail.fl_str_mv |
semina.agrarias@uel.br |
_version_ |
1799306057559834624 |