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IMPROVING PHOTOSYNTHETIC SOLAR ENERGY CONVERSION IN MICROALGAL CULTURES FOR THE PRODUCTION OF BIOFUELS AND HIGH VALUE PRODUCTS

Objective

Solar Energy is the most abundant renewable energy source available for our Planet. Light energy conversion into chemical energy by photosynthetic organisms is indeed the main conversion energy step, which originated high energy containing fossil deposits, now being depleted. By the way, plant or algae biomass may still be used to produce biofuels, as bio-ethanol, bio-diesel and bio-hydrogen. Microalgae exploitation for biofuels production have the considerable advantages of being sustainable and not in competition with food production, since not-arable lands, waste water and industrial gasses can be used for algae cultivation. Considering that only 45% of the sunlight covers the range of wavelengths that can be absorbed and used for photosynthesis, the maximum photosynthetic efficiency achievable in microalgae is 10%. On these bases, a photobioreactor carrying 600 l/m-2 would produce 294 Tons/ha/year of biomass of which 30% to 80%, depending on strain and growth conditions, being oil. However this potential has not been exploited yet, since biomass and biofuels yield on industrial scale obtained up to now were relatively low and with high costs of production. The main limitation encountered for sustained biomass production in microalgae by sunlight conversion is low light use efficiency, reduced from the theoretical value of 10% to 1-3%. This low light use efficiency is mainly due to a combined effect of reduced light penetration to deeper layers in highly pigmented cultures, where light available is almost completely absorbed by the outer layers, and an extremely high (up to 80%) thermal dissipation of the light absorbed. This project aims to investigate the molecular basis for efficient light energy conversion into chemical energy, in order to significantly increase the biomass production in microalgae combining a solid investigation of the principles of light energy conversion with biotechnological engineering of algal strains.

Field of science

  • /social sciences/economics and business/economics/sustainable economy
  • /engineering and technology/environmental engineering/energy and fuels/biofuels
  • /engineering and technology/environmental engineering/waste management/waste water
  • /engineering and technology/environmental engineering/energy and fuels/energy conversion
  • /engineering and technology/environmental engineering/energy and fuels/renewable energy
  • /engineering and technology/environmental engineering/energy and fuels/renewable energy/solar energy
  • /agricultural sciences/agricultural biotechnology/biomass
  • /natural sciences/biological sciences/microbiology/phycology

Call for proposal

ERC-2015-STG
See other projects for this call

Funding Scheme

ERC-STG - Starting Grant

Host institution

UNIVERSITA DEGLI STUDI DI VERONA
Address
Via Dell Artigliere 8
37129 Verona
Italy
Activity type
Higher or Secondary Education Establishments
EU contribution
€ 1 341 875

Beneficiaries (2)

UNIVERSITA DEGLI STUDI DI VERONA
Italy
EU contribution
€ 1 341 875
Address
Via Dell Artigliere 8
37129 Verona
Activity type
Higher or Secondary Education Establishments
POLITECNICO DI MILANO
Italy
EU contribution
€ 100 000
Address
Piazza Leonardo Da Vinci 32
20133 Milano
Activity type
Higher or Secondary Education Establishments