DESCRIZIONE
Process for producing an algal biomass comprising: i)inoculating in an aqueous cultivation medium at least a first algal species and at least a first protozoan species obtaining a symbiotic co-culture, the at least first protozoan species being suitable to generate symbiosis with the at least first algal species; ii) cultivating the symbiotic co-culture obtaining an algal biomass; and iii) harvesting at least a portion of the algal biomass.