Table 1.
Physiological metabolic parameters of H. elongata at 4 h after NaCl shock
| Parameters | Before shock | Control | 5%b | 8%b | 13%b |
|---|---|---|---|---|---|
| OUR (mmol/L/h) | 127.83 ± 5.43 | 107.83 ± 8.78 | 137.69 ± 9.54 | 77.91 ± 9.54 | 9.89 ± 1.21 |
| qo2 (mmol/g/h) | 6.53 ± 0.18 | 4.61 ± 0.13 | 4.38 ± 0.12 | 3.29 ± 0.11 | 0.57 ± 0.08 |
| CER (mmol/L/h) | 130.15 ± 6.23 | 110.34 ± 5.65 | 145.82 ± 7.64 | 82.42 ± 6.87 | 11.21 ± 1.62 |
| qco2 (mmol/g/h) | 6.65 ± 0.21 | 4.72 ± 0.14 | 4.64 ± 0.15 | 3.48 ± 0.15 | 0.64 ± 0.06 |
| Biomass (g/L) | 19.58 ± 0.23 | 23.38 ± 0.57 | 31.41 ± 0.96 | 23.65 ± 0.78 | 17.38 ± 0.66 |
| µ (h− 1) | 0.18 ± 0.02 | 0.06 ± 0.01 | 0.13 ± 0.01 | 0.05 ± 0.01 | 0.02 ± 0.01 |
| P (g/L) | 0.54 ± 0.09 | 1.75 ± 0.23 | 4.08 ± 0.28 | 4.58 ± 0.19 | 0.31 ± 0.06 |
| qp (mg ectoine/ g DCW/h) | 1.35 ± 0.01 | 12.13 ± 0.15 | 12.41 ± 0.32 | 66.54 ± 1.86 | 0.00 ± 0.00 |
| Glucose (g/L) | 21.65 ± 0.65 | 0.66 ± 0.11 | 1.82 ± 0.31 | 8.71 ± 0.61 | 19.12 ± 0.68 |
| Productivitya (mg/L/h) | 30 ± 11 | 320 ± 61 | 1230 ± 112 | 1450 ± 99 | -40 ± 10 |
Productivitya refers to the maximum productivity during 4 h after NaCl shock
b refers to the NaCl concentration (%) in the fermentation broth after osmotic shock
CER (carbon dioxide expiration rate), OUR (oxygen uptake rate)