Celldeg provides High-Density Cultivators (HDCs) for microalgae and cyanobacteria. Although microalgae and cyanobacteria can be grown theoretically with much higher yield per irradiated area than crop plants and can be adapted to produce biofuels and other valuable products of photosynthesis, a major problem for their practical and economic applications consists in the low productivities and cell densities obtainable at present in pilot scale photobioreactors. CellDEG developed parallel screening- and analysis platforms as well as production cultivators for the laboratory scale. The goal is the establishment of a culture methodology for photoautotrophic cultures, which allows reproducibility and comparability of experimental approaches across laboratory boundaries.
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- Laboratory Equipment
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- Internationally (various countries)
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Celldeg has created a technology for photoautotrophic high-density cultures that enables an extremely efficient use of light with extremely high intensity for the production of biomass or bioproducts in the research and preparative scale.
A main reason for the handicap of low cell density in present-date photobioreactors can be seen in the limited use of light in some distance from the irradiated area and sub-optimal turbulent mixing of the culture by the gas-bubble flow.
Innovative culture vessels and photobioreactors for rapid growth of microalgae and cyanobacteria to ultra-high density. We are a team of experts in cyanobacterial biology, bioinformatics, and engineering offering innovative membrane-based bioreactor solutions for high density cultivation applications.
High density cultivators are now available with various culture volumes. The Celldeg technology is basing on bubble-free membrane-mediated CO2 supply combined with the well-known increase of the quantum yield by strong turbulent mixing in high density cultures.
Celldeg provides innovative and flexible systems for axenic culture of cyanobacteria and microalgae. The user-friendly High-Density Cultivators enable rapid growth up to extremely high biomass concentrations. Biomass yields are about 10 times higher than those reached with classic bubble-stream techniques. The cultivators can be easily fitted to very different approaches in microalgae research and bioprocess development.
Thin culture layer and membrane mediated CO2 supply. Core elements of the cultivators are two chambers separated by a thin highly gas-permeable membrane of excellent biocompatibility and mechanical strength. The lower chamber contains air enriched with CO2. The CO2 concentration (usually 1-10%) can be maintained by a carbonate buffer (HDC with volume up to 150ml) or by controlled CO2 injection (HDCs with volumes over 150ml). The upper chamber contains the liquid culture and a turbulent gas phase, which is in diffusional exchange with the atmosphere. An oxygen release compartment with defined gas permeability prevents high oxygen partial pressure