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Evaluation of Dried Sweet Sorghum Stalks as Raw Material for Methane Production

The potential of utilizing dried sweet sorghum stalks as raw material for anaerobic digestion has been evaluated. Two different treatments were tested, a mild thermal and an enzymatic, alone or in combination. Thermal pretreatment was found to decrease the methane yields, whereas one-step enzymatic...

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Detalles Bibliográficos
Autores principales: Matsakas, Leonidas, Rova, Ulrika, Christakopoulos, Paul
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Hindawi Publishing Corporation 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4153003/
https://www.ncbi.nlm.nih.gov/pubmed/25210715
http://dx.doi.org/10.1155/2014/731731
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author Matsakas, Leonidas
Rova, Ulrika
Christakopoulos, Paul
author_facet Matsakas, Leonidas
Rova, Ulrika
Christakopoulos, Paul
author_sort Matsakas, Leonidas
collection PubMed
description The potential of utilizing dried sweet sorghum stalks as raw material for anaerobic digestion has been evaluated. Two different treatments were tested, a mild thermal and an enzymatic, alone or in combination. Thermal pretreatment was found to decrease the methane yields, whereas one-step enzymatic treatment resulted in a significant increase of 15.1% comparing to the untreated sweet sorghum. Subsequently, in order to increase the total methane production, the combined effect of enzyme load and I/S on methane yields from sweet sorghum was evaluated by employing response surface methodology. The obtained model showed that the maximum methane yield that could be achieved is 296 mL CH(4)/g VS at I/S ratio of 0.35 with the addition of 11.12 FPU/g sweet sorghum.
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spelling pubmed-41530032014-09-10 Evaluation of Dried Sweet Sorghum Stalks as Raw Material for Methane Production Matsakas, Leonidas Rova, Ulrika Christakopoulos, Paul Biomed Res Int Research Article The potential of utilizing dried sweet sorghum stalks as raw material for anaerobic digestion has been evaluated. Two different treatments were tested, a mild thermal and an enzymatic, alone or in combination. Thermal pretreatment was found to decrease the methane yields, whereas one-step enzymatic treatment resulted in a significant increase of 15.1% comparing to the untreated sweet sorghum. Subsequently, in order to increase the total methane production, the combined effect of enzyme load and I/S on methane yields from sweet sorghum was evaluated by employing response surface methodology. The obtained model showed that the maximum methane yield that could be achieved is 296 mL CH(4)/g VS at I/S ratio of 0.35 with the addition of 11.12 FPU/g sweet sorghum. Hindawi Publishing Corporation 2014 2014-08-19 /pmc/articles/PMC4153003/ /pubmed/25210715 http://dx.doi.org/10.1155/2014/731731 Text en Copyright © 2014 Leonidas Matsakas et al. https://creativecommons.org/licenses/by/3.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Matsakas, Leonidas
Rova, Ulrika
Christakopoulos, Paul
Evaluation of Dried Sweet Sorghum Stalks as Raw Material for Methane Production
title Evaluation of Dried Sweet Sorghum Stalks as Raw Material for Methane Production
title_full Evaluation of Dried Sweet Sorghum Stalks as Raw Material for Methane Production
title_fullStr Evaluation of Dried Sweet Sorghum Stalks as Raw Material for Methane Production
title_full_unstemmed Evaluation of Dried Sweet Sorghum Stalks as Raw Material for Methane Production
title_short Evaluation of Dried Sweet Sorghum Stalks as Raw Material for Methane Production
title_sort evaluation of dried sweet sorghum stalks as raw material for methane production
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4153003/
https://www.ncbi.nlm.nih.gov/pubmed/25210715
http://dx.doi.org/10.1155/2014/731731
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