Table 1

Comparison of parameters for L-dopa production by Y. lipolytica NRRL-143

Production parameters*
Control
Test**

Proteins (mg/ml)
0.34
4.06
Yp/s
0.590
1.071
Qs
0.073
0.329
qs
0.002
0.011
Optimal pH$
3.5
2.5–4.0

Max. L-dopa production (mg/ml)
0.28
3.48

Level of significance <p>*$
-
HS

*Kinetic parameters: Yp/s = mg L-dopa produced/mg substrate consumed, Qs = mg substrate consumed/ml/h, qs = mg substrate consumed/mg cells/h.

**2.0 mg/ml diatomite added 15 min after the start of reaction.

$Acetate buffer

*$<p> is for significance level (≈0.05) on the basis of probability. HS denotes that the values are highly significant.

Ali et al. BMC Biotechnology 2007 7:50   doi:10.1186/1472-6750-7-50