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Table 2 Growth (colony-forming units/ml) of C. acetobutylicum and C. beijerinckii on milk dust powder based medium

From: Evaluation of industrial dairy waste (milk dust powder) for acetone-butanol-ethanol production by solventogenic Clostridium species

Time (h)

GlucoseC. acetobutylicum ATCC 824 cfu/ml

Milk dustC. acetobutylicum ATCC 824 cfu/ml

GlucoseC. beijerinckii NCIMB 8052 cfu/ml

Milk dustC. beijerinckii NCIMB 8052 cfu/ml

0

2.86 × 107

1.87 × 107

5.1 × 107

1.17 × 107

12

8.06 × 109

3.1 × 108

2.0 × 109

1.27 × 108

24

4.46 × 1010

4.0 × 109

3.3 × 109

4.67 × 108

36

1.39 × 1011

7.67 × 109

1.1 × 1010

3.67 × 109

48

8.3 × 1010

1.03 × 109

8.6 × 109

2.33 × 109

60

6.1 × 1010

1.13 × 109

6 × 109

1.3 × 108

72

6.9 × 109

7.0 × 108

1.2 × 109

1.6 × 108