Fig. 4

R. eutropha H16 growth in the presence of l-Amino acids (AAs). Bacteria were grown aerobically, at pH 7.0, for 72 h: Kinetic of a OD (600 nm) with the addition of L-AAs; b specific growth rate, μ (h⁻¹) and c pH; d bacterial growth (OD) with the addition of vitamins; n = 5; p < 0.05. Control is FN (without AAs addition), L-AAs and vitamins were added in FN medium at 7.0 μmol/ml concentration. The average data of 4 independent measurements are presented with standard errors