Chitinase Activity of Serratia marcescens PT-6 Cultured in Bioreactor with Various Aeration RateNiswah Umhudloh Dzakiyya, Indun Dewi Puspita and Sri PudjirahartiE3S Web Conf., 147 (2020) 03010DOI: https://doi.org/10.1051/e3sconf/202014703010