Marine psychrophile-derived cold-active polygalacturonase: Enhancement of productivity in Thalassospira frigidphilosprofundus S3BA12 by whole cell immobilization

•Thalassospira frigidphilosprofundus S3BA12 produced 625 U/ml of cold-active polygalacturonase.•4-fold increase in cell mass and polygalacturonase titre from its native strain.•Polyurethane based whole cell immobilization with robustness for saline culturing.•Statistically proven correlations between pectinase subtypes.