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Promise of combined hydrothermal/chemical and mechanical refining for pretreatment of woody and herbaceous biomass

Production of advanced biofuels from woody and herbaceous feedstocks is moving into commercialization. Biomass needs to be pretreated to overcome the physicochemical properties of biomass that hinder enzyme accessibility, impeding the conversion of the plant cell walls to fermentable sugars. Pretrea...

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Detalles Bibliográficos
Autores principales: Kim, Sun Min, Dien, Bruce S., Singh, Vijay
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4852465/
https://www.ncbi.nlm.nih.gov/pubmed/27141232
http://dx.doi.org/10.1186/s13068-016-0505-2
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author Kim, Sun Min
Dien, Bruce S.
Singh, Vijay
author_facet Kim, Sun Min
Dien, Bruce S.
Singh, Vijay
author_sort Kim, Sun Min
collection PubMed
description Production of advanced biofuels from woody and herbaceous feedstocks is moving into commercialization. Biomass needs to be pretreated to overcome the physicochemical properties of biomass that hinder enzyme accessibility, impeding the conversion of the plant cell walls to fermentable sugars. Pretreatment also remains one of the most costly unit operations in the process and among the most critical because it is the source of chemicals that inhibit enzymes and microorganisms and largely determines enzyme loading and sugar yields. Pretreatments are categorized into hydrothermal (aqueous)/chemical, physical, and biological pretreatments, and the mechanistic details of which are briefly outlined in this review. To leverage the synergistic effects of different pretreatment methods, conducting two or more pretreatments consecutively has gained attention. Especially, combining hydrothermal/chemical pretreatment and mechanical refining, a type of physical pretreatment, has the potential to be applied to an industrial plant. Here, the effects of the combined pretreatment (combined hydrothermal/chemical pretreatment and mechanical refining) on energy consumption, physical structure, sugar yields, and enzyme dosage are summarized.
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spelling pubmed-48524652016-05-03 Promise of combined hydrothermal/chemical and mechanical refining for pretreatment of woody and herbaceous biomass Kim, Sun Min Dien, Bruce S. Singh, Vijay Biotechnol Biofuels Review Production of advanced biofuels from woody and herbaceous feedstocks is moving into commercialization. Biomass needs to be pretreated to overcome the physicochemical properties of biomass that hinder enzyme accessibility, impeding the conversion of the plant cell walls to fermentable sugars. Pretreatment also remains one of the most costly unit operations in the process and among the most critical because it is the source of chemicals that inhibit enzymes and microorganisms and largely determines enzyme loading and sugar yields. Pretreatments are categorized into hydrothermal (aqueous)/chemical, physical, and biological pretreatments, and the mechanistic details of which are briefly outlined in this review. To leverage the synergistic effects of different pretreatment methods, conducting two or more pretreatments consecutively has gained attention. Especially, combining hydrothermal/chemical pretreatment and mechanical refining, a type of physical pretreatment, has the potential to be applied to an industrial plant. Here, the effects of the combined pretreatment (combined hydrothermal/chemical pretreatment and mechanical refining) on energy consumption, physical structure, sugar yields, and enzyme dosage are summarized. BioMed Central 2016-04-30 /pmc/articles/PMC4852465/ /pubmed/27141232 http://dx.doi.org/10.1186/s13068-016-0505-2 Text en © Kim et al. 2016 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
spellingShingle Review
Kim, Sun Min
Dien, Bruce S.
Singh, Vijay
Promise of combined hydrothermal/chemical and mechanical refining for pretreatment of woody and herbaceous biomass
title Promise of combined hydrothermal/chemical and mechanical refining for pretreatment of woody and herbaceous biomass
title_full Promise of combined hydrothermal/chemical and mechanical refining for pretreatment of woody and herbaceous biomass
title_fullStr Promise of combined hydrothermal/chemical and mechanical refining for pretreatment of woody and herbaceous biomass
title_full_unstemmed Promise of combined hydrothermal/chemical and mechanical refining for pretreatment of woody and herbaceous biomass
title_short Promise of combined hydrothermal/chemical and mechanical refining for pretreatment of woody and herbaceous biomass
title_sort promise of combined hydrothermal/chemical and mechanical refining for pretreatment of woody and herbaceous biomass
topic Review
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4852465/
https://www.ncbi.nlm.nih.gov/pubmed/27141232
http://dx.doi.org/10.1186/s13068-016-0505-2
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