Optimization of ellagic acid accumulation by Aspergillus niger GH1 in solid state culture using pomegranate shell powder as a support

► Ellagic acid accumulation under solid state culture was improved. ► Ellagic acid production was enhanced more than 14-fold ► Aspergillus niger hydrolyzed pomegranate ellagitannins accumulation ellagic acid. ► Kinetic parameters of biodegradation of ellagitannins to produce ellagic acid were defined.