Red algae industrial residues as a sustainable carbon platform for the co-production of poly-3-hydroxybutyrate and gluconic acid by .

Polyhydroxyalkanoate (PHA) production using halophilic bacteria has been revisited because less severe operational conditions with respect to sterility can be applied, also alleviating production costs. was selected because it is a moderate halophile able to grow and attain high poly-3-hydroxybutyrate (P3HB) contents under 5-45 g/L NaCl concentrations, conditions that discourage microbial contamination. Industrial residues of the red alga after agar extraction were used as sugar platform to reduce costs associated with the carbon source.