Bacterial isolates

Conversion efficiency (%)1

Biomass
 (g.l-1)

Surfactin
(mg.l-1)

Surfaction yield

Growth yield3
gcell.gsub-1

Specific growth
rate (h-1)

Productivity
gsurfactin.l-1.h-1

mg.gcells

mg.gsub2

BDCC-TUSA-1

BDCC-TUSA-2

BDCC-TUSA-3

68.13

56.88

98.63

2.86

1.47

5.96

2050

560

4650

716.78

380.95

780.20

75.23

24.83

117.87

0.105

0.068

0.151

0.295

0.293

0.462

68.35

18.67

155.00
1, Percentages of Maldex-15 conversion to biomass and surfactin
2, mg surfactin produced from 1.0 g of Maldex-15
3, g cell biomass (Dry Weight) produced from 1.0 g of Maldex-15
Table 5. Kinetics of cell growth and surfactin production by the three bacterial isolates grown in MSM with Maldex-15 as the sole carbon source.