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RELATORI ALGAEFARM

Abiusi Fabian

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Relatori AlgaeFarm

Qualifica: Postdoctoral Researcher

Istituzione/Azienda: Laboratory of Sustainable Food Processing, ETH Zürich

> Profilo professionale



Sessione di intervento
Gli utilizzi delle microalghe: industria, alimentazione, pharma, ambiente, energia

Intervento
Microalghe per la depurazione di acque reflue industriali ed urbane: a che punto siamo?

Abstract
Galdieria sulphuraria is considered one of the most promising microalgae for food applications. In this study, we compared two strains of G. sulphuraria cultivated autotrophically and mixotrophically over 35 days in pilot-scale photobioreactors under nonsterile conditions.
The low pH (<1.9) used for cultivation successfully prevented microbial contamination.
The two strains had similar autotrophic and mixotrophic biomass productivities, the latter being 2.3 times higher than autotrophic productivity. Comparing the two strains, G. sulphuraria SAG 108.79 and ACUF 064 had 51% and 64% (w/w) protein and 4% and 9% (w/w) C-phycocyanin content, respectively. Interestingly, G. sulphuraria SAG 108.79 showed a protein bioaccessibility of 62%, in line with other microalgal species, whereas G. sulphuraria ACUF 064 had a protein bioaccessibility of only 14%.
No differences in the amino acid profile were found between the two strains or between trophic modes. Stable and well-balanced protein profiles are encouraging results for future applications of this species.


IL PROGRAMMA

15
Febbraio

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Mercoledì

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