Expression patterns of chitinase produced from Paenibacillus chitinolyticus with different two culture media

► Chitinase isozymes of P. chitinolyticus were screened on native- and SDS-PAGE gels. ► Chitinase isozymes (CIs) of MP-306 were expressed as six bands on native-PAGE gels. ► Chitinase isozymes of MP-306 were expressed as thirteen bands on SDS-PAGE gels. ► Three bands of CIs on native-PAGE were expressed as nine bands of CIs on SDS-PAGE.