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ALLA PROSSIMA EDIZIONE

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TO THE NEXT EDITION

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À LA PROCHAINE ÉDITION

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ALLA PROSSIMA EDIZIONE

ALGAEFARM SPEAKERS

Abiusi Fabian

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AlgaeFarm speakers

Title: Postdoctoral Researcher

Association/Company: Laboratory of Sustainable Food Processing, ETH Zürich

> Professional profile



Speech session
The uses of microalgae: industry, food, pharma, environment, energy

Speech
Volcanic Proteins

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.


PROGRAM

15
February

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Wednesday
ALGAEFARM-LOGO-PROGRAMMA
16:00 - 18:00
NOVELFARM Conference Room - Hall 4

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