Evaluation of Production Parameters for Maximum Lipase Production by <i>P. stutzeri</i> MTCC 5618 and Scale-Up in Bioreactor

Abstract

Intracellular lipase producer screened from the library available in the laboratory, identified through 16S rRNA as Pseudomonas stutzeri , was studied for maximum enzyme production in shake flask. The work was intended to evaluate the effect of different physicochemical factors like carbon, nitrogen, metal ions, surfactant, inoculum, pH, temperature, agitation, and aeration on lipase production. Optimized media showed 1.62-fold increase in lipase production when compared to basal media. Scale-up of lipase in in situ bioreactor showed reduction in fermentation time in both basal and optimized media, giving 41 and 99 U/mg of lipase activity after 48 h of fermentation.