TABLE 2.
Volatile compounds in cultures and cell yields of KGMA0119 (wild type) and its derivatives after 34 h of cultivationa
| Strain (relevant characteristics) | Mean amt ± SD of volatile compound (%, wt/vol) |
Final cell yield (OD660 at 34 h) | |
|---|---|---|---|
| Acetic acid | Acetoin | ||
| KGMA0119 (wild type) | 0.76 ± 0.022 A | 0.069 ± 0.00082 A | 2.33 ± 0.28 A |
| KGMA5511 (ΔpyrE ΔilvC::pyrE) | 0.69 ± 0.046 A | 0.11 ± 0.0059 B | 1.56 ± 0.12 A |
| KGMA7203 [ΔpyrE KelrpΔ(397-511)::pyrE] | 0.71 ± 0.025 A | 0.13 ± 0.0081 B | 1.87 ± 0.11 A |
a
Values shown are consistent with the date of 34 h of cultivation in Fig. 4. Values followed by different capital letters (A or B) are significantly different by Tukey's test at P values of 0.05. For acetic acid, ANOVA F = 5.14, df = 8, P = 0.15. For acetoin, ANOVA F = 5.14, df = 8, P = 0.00011. For cell yield, ANOVA F = 5.14, df = 8, P = 0.017.