Biosynthesis of exopolysaccharides (EPS) on Pseudomonas Agar P Medium with sugarbeet molasses by Pseudomonas aeruginosa G1 and Pseudomonas putida G12 strains

摘要

In this study, the production of exopolysaccharides (EPS) by Pseudomonas aeruginosa G1 and Pseudomonas putida G12 strains on Pseudomonas Agar P Medium with 2% glycerol was investigated. EPS yields from these strains were detected (192 mg/L, 182 mg/L,respectively). Pseudomonas Agar P Medium with 2% glycerol (w/v) was used as control. Also, EPS productions of these Pseudomonas strains have been determined in sugarbeet molasses [2-6% w/v concentrations (2-6 g molasses/100 mL water)I as a complex carbonsource. The highest EPS production of the G1 strain (397 mg/L) was found in 6% w/v molasses concentration according to the control, while the highest EPS production of the G12 strain (367 mg/L) was found in 4% w/v molasses concentration according to thecontrol. The use of sugarbeet molasses as an inexpensive alternative to glycerol was efficient.