Know-how to cultivate carotenogenic orange, green phase and brown phase Dunaliella in tubular photobioreactors

In closed photobioreactor (PBR) systems, it is possible to grow Dunaliella in a controlled environment, where by careful manipulation of the cultivation parameters, in the D-Factory project it was possible to obtain cells in both green and orange (carotenogenic) phase, as well as the intermediate brown phase.

This expands the array of potential applications and products coming from Dunaliella cultivation: green Dunaliella for enzymes or bioactive peptides; growing GMO strains; growing non-dominant strains; cultivation under chemical induction of target compounds; control of the isomer ratio of beta-carotene; etc.

In the D-Factory project, multilayer horizontal tubular PBRs from A4F – Algae for future (www.a4f.pt) achieving a performance of TRL level of 5. Whereas in green phase it was possible to maintain cultures with high growth rate for several months, in orange phase, not enough time was available to complete several consistent seasonal and yearly trials in semi-continuous regime to overcome issues such as internal biofilm formation in warmer weather.

You can view more details in the videosA4F@D-Factory FP7and the official D-Factory Video.

For more details contact: vvv@a4f.pt or luis.costa@a4f.pt.