Enhanced rhamnolipids production using a novel bioreactor system based on integrated foam-control and repeated fed-batch fermentation strategy

Table 1 Performance and comparisons of rhamnolipids production using anti-foam agents and foam-control system

Comparisons	Anti-foam agents	Foam-control system
Interval of defoaming agent (h)	2.0–6.0	No need
Dosage (μL)	20–100	–
Total amount of defoamer (mL)	4.5 ± 0.5 mL	–
Maximum dry biomass (g/L)	7.61 ± 1.13	9.24 ± 0.92
Rhamnolipid (g/L)	29.96 ± 0.89	45.63 ± 3.36
Yield (g/g)^a	0.50 ± 0.07	0.76 ± 0.11

^a Yield of rhamnolipids production was calculated based on total colza oil consumption

ISSN: 2731-3654