Microbial Production of Lactic Acid by Using Crude Glycerol from Biodiesel

Biodiesel derived raw glycerol represent a copious and inexpensive source which can be used as raw material for lactic acid conversion. Lactobacillus delbrueckii strain when grown with 20 g raw glycerol l-1, produced 4.37 g lactic acid l-1 after 2 days and Lactococcus lactis subsp.la strain with pure glycerol produced 2.26 g lactic acid l-1 Keywords  : Biodiesel, crude glycerol, lactic acid.