Species composition determines bioplastics production in photosynthetic microbiomes: strategy to enrich cyanobacteria PHB-producers

Altamira-Algarra, B.; Lage, A.; Garcia, J.; Gonzalez-Flo, E.

doi:10.1101/2023.05.30.542808

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bioRxiv · 10.1101/2023.05.30.542808

Species composition determines bioplastics production in photosynthetic microbiomes: strategy to enrich cyanobacteria PHB-producers

Altamira-Algarra, B.·Lage, A.·Garcia, J.·Gonzalez-Flo, E.

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Abstract

The aim of this study was to set the operating mode in regards to nutrients, temperature and light to use as a strategy to enrich a microbiome rich in cyanobacteria in polyhidroxybutyrate (PHB)-producers in order to enhance this biopolymer production. Alternate growth and accumulation phases were conducted for 179 days in a 3 L photobioreactor. Although, presence of green microalgae potentially reduced PHB production, the microbiome produced up to 22 % dry cell weight (dcw) PHB. Results suggested that this methodology could be applied to a robust microbiome rich in cyanobacteria to boost PHB production.

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Altamira-Algarra, B., Lage, A., Garcia, J., Gonzalez-Flo, E.. 2023-05-31. Species composition determines bioplastics production in photosynthetic microbiomes: strategy to enrich cyanobacteria PHB-producers. https://doi.org/10.1101/2023.05.30.542808

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