Cyanobacterial Polyhydroxyalkanoates: A Sustainable Alternative in Circular Economy
Conventional petrochemical plastics have become a serious environmental problem. Its unbridled use, especially in non-durable goods, has generated an accumulation of waste that is difficult to measure, threatening aquatic and terrestrial ecosystems. The replacement of these plastics with cleaner alt...
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doaj-5d472d0d366b423fbea23db2bfeec5e82020-11-25T02:50:30ZengMDPI AGMolecules1420-30492020-09-01254331433110.3390/molecules25184331Cyanobacterial Polyhydroxyalkanoates: A Sustainable Alternative in Circular EconomyDiana Gomes Gradíssimo0Luciana Pereira Xavier1Agenor Valadares Santos2Post Graduation Program in Biotechnology, Institute of Biological Sciences, Universidade Federal do Pará, Augusto Corrêa Street, Guamá, Belém, PA 66075-110, BrazilLaboratory of Biotechnology of Enzymes and Biotransformations, Institute of Biological Sciences, Universidade Federal do Pará, Augusto Corrêa Street, Guamá, Belém, PA 66075-110, BrazilPost Graduation Program in Biotechnology, Institute of Biological Sciences, Universidade Federal do Pará, Augusto Corrêa Street, Guamá, Belém, PA 66075-110, BrazilConventional petrochemical plastics have become a serious environmental problem. Its unbridled use, especially in non-durable goods, has generated an accumulation of waste that is difficult to measure, threatening aquatic and terrestrial ecosystems. The replacement of these plastics with cleaner alternatives, such as polyhydroxyalkanoates (PHA), can only be achieved by cost reductions in the production of microbial bioplastics, in order to compete with the very low costs of fossil fuel plastics. The biggest costs are carbon sources and nutrients, which can be appeased with the use of photosynthetic organisms, such as cyanobacteria, that have a minimum requirement for nutrients, and also using agro-industrial waste, such as the livestock industry, which in turn benefits from the by-products of PHA biotechnological production, for example pigments and nutrients. Circular economy can help solve the current problems in the search for a sustainable production of bioplastic: reducing production costs, reusing waste, mitigating CO<sub>2</sub>, promoting bioremediation and making better use of cyanobacteria metabolites in different industries.https://www.mdpi.com/1420-3049/25/18/4331biopolymerbiorefinerycyanobacteriacircular economypolyhydroxyalkanoatewaste |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Diana Gomes Gradíssimo Luciana Pereira Xavier Agenor Valadares Santos |
spellingShingle |
Diana Gomes Gradíssimo Luciana Pereira Xavier Agenor Valadares Santos Cyanobacterial Polyhydroxyalkanoates: A Sustainable Alternative in Circular Economy Molecules biopolymer biorefinery cyanobacteria circular economy polyhydroxyalkanoate waste |
author_facet |
Diana Gomes Gradíssimo Luciana Pereira Xavier Agenor Valadares Santos |
author_sort |
Diana Gomes Gradíssimo |
title |
Cyanobacterial Polyhydroxyalkanoates: A Sustainable Alternative in Circular Economy |
title_short |
Cyanobacterial Polyhydroxyalkanoates: A Sustainable Alternative in Circular Economy |
title_full |
Cyanobacterial Polyhydroxyalkanoates: A Sustainable Alternative in Circular Economy |
title_fullStr |
Cyanobacterial Polyhydroxyalkanoates: A Sustainable Alternative in Circular Economy |
title_full_unstemmed |
Cyanobacterial Polyhydroxyalkanoates: A Sustainable Alternative in Circular Economy |
title_sort |
cyanobacterial polyhydroxyalkanoates: a sustainable alternative in circular economy |
publisher |
MDPI AG |
series |
Molecules |
issn |
1420-3049 |
publishDate |
2020-09-01 |
description |
Conventional petrochemical plastics have become a serious environmental problem. Its unbridled use, especially in non-durable goods, has generated an accumulation of waste that is difficult to measure, threatening aquatic and terrestrial ecosystems. The replacement of these plastics with cleaner alternatives, such as polyhydroxyalkanoates (PHA), can only be achieved by cost reductions in the production of microbial bioplastics, in order to compete with the very low costs of fossil fuel plastics. The biggest costs are carbon sources and nutrients, which can be appeased with the use of photosynthetic organisms, such as cyanobacteria, that have a minimum requirement for nutrients, and also using agro-industrial waste, such as the livestock industry, which in turn benefits from the by-products of PHA biotechnological production, for example pigments and nutrients. Circular economy can help solve the current problems in the search for a sustainable production of bioplastic: reducing production costs, reusing waste, mitigating CO<sub>2</sub>, promoting bioremediation and making better use of cyanobacteria metabolites in different industries. |
topic |
biopolymer biorefinery cyanobacteria circular economy polyhydroxyalkanoate waste |
url |
https://www.mdpi.com/1420-3049/25/18/4331 |
work_keys_str_mv |
AT dianagomesgradissimo cyanobacterialpolyhydroxyalkanoatesasustainablealternativeincirculareconomy AT lucianapereiraxavier cyanobacterialpolyhydroxyalkanoatesasustainablealternativeincirculareconomy AT agenorvaladaressantos cyanobacterialpolyhydroxyalkanoatesasustainablealternativeincirculareconomy |
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