Figure captions
Fig. 1.Semi-continuous fermentation platform (a. Fermentation broth inlet; b. Supernatant outlet; c. SLs export).
Fig. 2.The morphology and sedimentation of SLs at different O/S ratios.
Fig. 3. SLs precipitation. (A) Relationship between the sedimentation height ratio of SLs and the concentration; (B) Relationship between the average sedimentation rate of SLs and O/S; (C) SLs particle size; (D) Viscosity of fermentation supernatant; (E) Density of SLs and oil mixture; (F) Density of fermentation broth supernatant.
Fig. 4. Ultrasonic assisted SLs deposition. (A) 100 W ultrasonic power; (B) 200 W ultrasonic power; (C) 300 W ultrasonic power; (D) Maximum sedimentation rate at different power.
Fig. 5.Ultrasound-assisted in-situseparation. (A) SLs titer; (B) Residual oil, glucose and DCW concentration; (C) Productivity and yield of SLs.