Microscopic and Biochemical Analysis to Better Understand the Impact of Alkaline Pretreatments on Lignocellulosic Biomass

Detalhes bibliográficos
Autor(a) principal: Nolasco, Helga Felix Pinheiro
Data de Publicação: 2021
Tipo de documento: Trabalho de conclusão de curso
Idioma: eng
Título da fonte: Repositório Institucional da UFSC
Texto Completo: https://repositorio.ufsc.br/handle/123456789/223483
Resumo: TCC(graduação) - Universidade Federal de Santa Catarina. Centro Tecnológico. Engenharia Sanitária e Ambiental.
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spelling Microscopic and Biochemical Analysis to Better Understand the Impact of Alkaline Pretreatments on Lignocellulosic BiomassAnaerobic digestion, lignocellulosic biomass, alkali pretreatment, FASGA, Phloroglucinol HCl.TCC(graduação) - Universidade Federal de Santa Catarina. Centro Tecnológico. Engenharia Sanitária e Ambiental.Due to an increased demand for more sustainable energy sources, Anaerobic Digestion (AD) of solid organic wastes such as biomass and energy crops have been gaining attention. In this study, varieties of sorghum and miscanthus were chosen as lignocellulosic biomass to be used for biodigestion because of their promising features for energy production in the context of a French initiative called Biomass for the Future (BFF). In the process of AD, organic material such as cellulose is broken down, but in lignocellulosic substrates, lignin acts as an inhibitor for this process. Pretreatments can be applied to the substrate in order to break down lignin and expose cellulose before the digestion. In this study, alkali pretreatments were applied using CaO and NaOH at 10% of concentration according to the sample’s Dry Mass value in different temperatures (26 and 55⁰C) to evaluate its efficiency, quantifying both the removal of lignin and the availability of cellulose. Pretreatments were evaluated from 0,5 to 144 hours. Staining with FASGA and Phloroglucinol HCl solution were performed and a kinetics study was made. Phloroglucinol-HCl staining showed that temperature has a positive correlation with lignin removal. The most effective pretreatments on both sorghum and miscanthus samples was pretreatment using NaOH at 55⁰C.Florianópolis, SC.Castilhos Jr, Armando Borges deUniversidade Federal de Santa CatarinaNolasco, Helga Felix Pinheiro2021-05-20T20:38:07Z2021-05-20T20:38:07Z2021-05-14info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/bachelorThesis92application/pdfhttps://repositorio.ufsc.br/handle/123456789/223483info:eu-repo/semantics/openAccessengreponame:Repositório Institucional da UFSCinstname:Universidade Federal de Santa Catarina (UFSC)instacron:UFSC2021-05-20T20:38:08Zoai:repositorio.ufsc.br:123456789/223483Repositório InstitucionalPUBhttp://150.162.242.35/oai/requestopendoar:23732021-05-20T20:38:08Repositório Institucional da UFSC - Universidade Federal de Santa Catarina (UFSC)false
dc.title.none.fl_str_mv Microscopic and Biochemical Analysis to Better Understand the Impact of Alkaline Pretreatments on Lignocellulosic Biomass
title Microscopic and Biochemical Analysis to Better Understand the Impact of Alkaline Pretreatments on Lignocellulosic Biomass
spellingShingle Microscopic and Biochemical Analysis to Better Understand the Impact of Alkaline Pretreatments on Lignocellulosic Biomass
Nolasco, Helga Felix Pinheiro
Anaerobic digestion, lignocellulosic biomass, alkali pretreatment, FASGA, Phloroglucinol HCl.
title_short Microscopic and Biochemical Analysis to Better Understand the Impact of Alkaline Pretreatments on Lignocellulosic Biomass
title_full Microscopic and Biochemical Analysis to Better Understand the Impact of Alkaline Pretreatments on Lignocellulosic Biomass
title_fullStr Microscopic and Biochemical Analysis to Better Understand the Impact of Alkaline Pretreatments on Lignocellulosic Biomass
title_full_unstemmed Microscopic and Biochemical Analysis to Better Understand the Impact of Alkaline Pretreatments on Lignocellulosic Biomass
title_sort Microscopic and Biochemical Analysis to Better Understand the Impact of Alkaline Pretreatments on Lignocellulosic Biomass
author Nolasco, Helga Felix Pinheiro
author_facet Nolasco, Helga Felix Pinheiro
author_role author
dc.contributor.none.fl_str_mv Castilhos Jr, Armando Borges de
Universidade Federal de Santa Catarina
dc.contributor.author.fl_str_mv Nolasco, Helga Felix Pinheiro
dc.subject.por.fl_str_mv Anaerobic digestion, lignocellulosic biomass, alkali pretreatment, FASGA, Phloroglucinol HCl.
topic Anaerobic digestion, lignocellulosic biomass, alkali pretreatment, FASGA, Phloroglucinol HCl.
description TCC(graduação) - Universidade Federal de Santa Catarina. Centro Tecnológico. Engenharia Sanitária e Ambiental.
publishDate 2021
dc.date.none.fl_str_mv 2021-05-20T20:38:07Z
2021-05-20T20:38:07Z
2021-05-14
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/bachelorThesis
format bachelorThesis
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://repositorio.ufsc.br/handle/123456789/223483
url https://repositorio.ufsc.br/handle/123456789/223483
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 92
application/pdf
dc.publisher.none.fl_str_mv Florianópolis, SC.
publisher.none.fl_str_mv Florianópolis, SC.
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFSC
instname:Universidade Federal de Santa Catarina (UFSC)
instacron:UFSC
instname_str Universidade Federal de Santa Catarina (UFSC)
instacron_str UFSC
institution UFSC
reponame_str Repositório Institucional da UFSC
collection Repositório Institucional da UFSC
repository.name.fl_str_mv Repositório Institucional da UFSC - Universidade Federal de Santa Catarina (UFSC)
repository.mail.fl_str_mv
_version_ 1808652172271812608

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