Conversion of waste cooking oil by rhodococcal lipase immobilized in gellan gumMaegala Nallapan Maniyam, Hazeeq Hazwan Azman, Hasdianty Abdullah and Nor Suhaila YaacobE3S Web Conf., 277 (2021) 03001DOI: https://doi.org/10.1051/e3sconf/202127703001