Kinetic studies on surfactant production byPseudomonas aeruginosa 44T1

Summary Biosurfactant accumulation occurred in the exponential and stationary phases. Production started when the nitrogen level was very low. Surfactant was produced with a diauxic pattern. Rhamnolipid concentration increased as nitrogen levels increased. Maximum product yield (Y_p/x) 2.9 was detected when C/N ratio was 6.6 and specific rate of product formation (p_q) was calculated. The examination of these kinetics parameters such as product yield and specific rate of product formation should be taken into account to develop a high efficient production process.