Environmental life cycle assessment of polyhydroxyalkanoates production by purple phototrophic bacteria mixed cultures

Financial support from the Regional Government of Madrid through the project S2018/EMT-4344 BIOTRES-CM is gratefully acknowledged. Dr. Martín-Gamboa would also like to thank the Regional Government of Madrid for financial support (2019-T2/AMB-15713). Dr. Puyol wishes to thank the Spanish Ministry of...

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Authors: Martin-Gamboa, Mario, Allegue, Luis D., Puyol, Daniel, Melero, Juan Antonio, Dufour, Javier
Format: article
Publication Date:2023
Country:España
Institution:Universidad Rey Juan Carlos
Repository:BURJC-Digital. Repositorio Institucional de la Universidad Rey Juan Carlos
OAI Identifier:oai:burjcdigital.urjc.es:10115/30993
Online Access:https://hdl.handle.net/10115/30993
Access Level:Open access
Keyword:Bioplastic
Carbon footprint
Circular economy
Food waste
Life cycle assessment
Photobiorefinery
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spelling Environmental life cycle assessment of polyhydroxyalkanoates production by purple phototrophic bacteria mixed culturesMartin-Gamboa, MarioAllegue, Luis D.Puyol, DanielMelero, Juan AntonioDufour, JavierBioplasticCarbon footprintCircular economyFood wasteLife cycle assessmentPhotobiorefineryFinancial support from the Regional Government of Madrid through the project S2018/EMT-4344 BIOTRES-CM is gratefully acknowledged. Dr. Martín-Gamboa would also like to thank the Regional Government of Madrid for financial support (2019-T2/AMB-15713). Dr. Puyol wishes to thank the Spanish Ministry of Economy for the Ramón y Cajal grant (RYC-2017-22909).Bioplastics offer a promising sustainable alternative to petroleum-based plastics due to their biodegradability as well as favourable thermal and mechanical properties. Among different types of biobased polymers, the production of polyhydroxyalkanoates (PHA) using purple phototrophic bacteria (PPB) and low-value substrates has gained increasing interest. Despite the momentum, challenges regarding the scalability and environmental feasibility of this biopolymer production pathway remain. In response, this study employs an exploratory LCA approach to quantitatively assesses the potential environmental implications of PHA production in powder form and the joint management of the organic fraction of municipal solid waste (OFMSW) through a novel photobiorefinery system that uses PPB mixed cultures. Environmental impacts were tested under multiple improvement scenarios and benchmarked against the production of conventional fossil-based granulate or unprocessed plastics, including low density polyethylene (LDPE), polyethylene terephthalate (PET) and polyurethane (PU). The photobiorefinery stage was found to have the greatest contribution to the impact categories, particularly due to direct emissions, consumption of electricity and production of extractive chemical agents used. These factors accounted for over 70% of the photobiorefinery impact in all cases. Avoided impacts provided net favourable outcomes in terms of carbon footprint and fossil resources when comparing PHA production to conventional plastics, especially PET and PU, with impact reductions ranging from 30% to 60%, respectively. However, when considering other impact categories like eutrophication, this situation was less favourable. The exploration of alternative scenarios offered significant impact reductions, especially when renewable electricity or an environmentally friendly extraction agent is used. Moreover, minimizing methane losses or co-producing hydrogen in the photobiorefinery had a notably positive effect on the carbon footprint, reducing the impact by more than 2 t of CO2 eq per t of PHA powder compared to the base case. Therefore, the implementation of feasible improvement measures in the short term can position PHA produced by mixed cultures as a sustainable alternative to petroleum-based plastics.Elsevier202420242023info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/10115/30993reponame:BURJC-Digital. Repositorio Institucional de la Universidad Rey Juan Carlosinstname:Universidad Rey Juan CarlosInglésAttribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:burjcdigital.urjc.es:10115/309932026-06-24T12:48:17Z
dc.title.none.fl_str_mv Environmental life cycle assessment of polyhydroxyalkanoates production by purple phototrophic bacteria mixed cultures
title Environmental life cycle assessment of polyhydroxyalkanoates production by purple phototrophic bacteria mixed cultures
spellingShingle Environmental life cycle assessment of polyhydroxyalkanoates production by purple phototrophic bacteria mixed cultures
Martin-Gamboa, Mario
Bioplastic
Carbon footprint
Circular economy
Food waste
Life cycle assessment
Photobiorefinery
title_short Environmental life cycle assessment of polyhydroxyalkanoates production by purple phototrophic bacteria mixed cultures
title_full Environmental life cycle assessment of polyhydroxyalkanoates production by purple phototrophic bacteria mixed cultures
title_fullStr Environmental life cycle assessment of polyhydroxyalkanoates production by purple phototrophic bacteria mixed cultures
title_full_unstemmed Environmental life cycle assessment of polyhydroxyalkanoates production by purple phototrophic bacteria mixed cultures
title_sort Environmental life cycle assessment of polyhydroxyalkanoates production by purple phototrophic bacteria mixed cultures
dc.creator.none.fl_str_mv Martin-Gamboa, Mario
Allegue, Luis D.
Puyol, Daniel
Melero, Juan Antonio
Dufour, Javier
author Martin-Gamboa, Mario
author_facet Martin-Gamboa, Mario
Allegue, Luis D.
Puyol, Daniel
Melero, Juan Antonio
Dufour, Javier
author_role author
author2 Allegue, Luis D.
Puyol, Daniel
Melero, Juan Antonio
Dufour, Javier
author2_role author
author
author
author
dc.subject.none.fl_str_mv Bioplastic
Carbon footprint
Circular economy
Food waste
Life cycle assessment
Photobiorefinery
topic Bioplastic
Carbon footprint
Circular economy
Food waste
Life cycle assessment
Photobiorefinery
description Financial support from the Regional Government of Madrid through the project S2018/EMT-4344 BIOTRES-CM is gratefully acknowledged. Dr. Martín-Gamboa would also like to thank the Regional Government of Madrid for financial support (2019-T2/AMB-15713). Dr. Puyol wishes to thank the Spanish Ministry of Economy for the Ramón y Cajal grant (RYC-2017-22909).
publishDate 2023
dc.date.none.fl_str_mv 2023
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/10115/30993
url https://hdl.handle.net/10115/30993
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv Attribution-NonCommercial-NoDerivatives 4.0 Internacional
http://creativecommons.org/licenses/by-nc-nd/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution-NonCommercial-NoDerivatives 4.0 Internacional
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:BURJC-Digital. Repositorio Institucional de la Universidad Rey Juan Carlos
instname:Universidad Rey Juan Carlos
instname_str Universidad Rey Juan Carlos
reponame_str BURJC-Digital. Repositorio Institucional de la Universidad Rey Juan Carlos
collection BURJC-Digital. Repositorio Institucional de la Universidad Rey Juan Carlos
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869420040730705920
score 15,811543

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