Figure 9From: L (+)-lactic acid production by pellet-form Rhizopus oryzae NRRL 395on biodiesel crude glycerol Comparative FTIR fingerprint of glycerol, lactic acid and the sample at the end of the fermentation process from trial with crude glycerol (CG) (75 g l -1 ) supplemented with inorganic nutrients (IN). Back to article page