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Table 3 Effects of inoculum dose on final broth pH, cell growth and SL production

From: Sophorolipids production from rice straw via SO3 micro-thermal explosion by Wickerhamiella domercqiae var. sophorolipid CGMCC 1576

Inoculum dose

Final pH

Residual glu (g/L)

Biomass (g/L)

Total SL (g/L)

Lactonic SL (g/L)

Lac SL/tot SL  (%)

Control group

2.55

0.81 ± 0.08

6.53 ± 0.14

40.74 ± 1.60

18.83 ± 0.01

46.22

1 %

5.21

0.63 ± 0.42

5.57 ± 0.09

29.08 ± 3.48

5.28 ± 3.27

18.17

2 %

4.49

0.78 ± 0.21

6.73 ± 0.25

42.33 ± 1.65

8.76 ± 0.46

20.70

4 %

4.26

0.27 ± 0.04

8.53 ± 0.33

37.56 ± 0.27

14.44 ± 0.97

38.46