were obtained from the Thailand Institute
of Scientific and Technological Research. Plate cultures were incubated
at room temperature (30 ± 2 C) for 24 h. The cells were then
transferred to 250 mL Erlenmeyer flasks containing 50 mL of culture
medium, comprised of glucose 10 g/L, peptone 5 g/L, yeast extract
3 g/L and malt extract 3 g/L. The flasks were incubated at
room temperature (30 ± 2 C) on a rotary incubator shaking at
140 rpm for 24 h for the seed culture. All industrial wastes including
palm oil mill effluent, serum latex, crude glycerol, and molasses
were obtained from industrial plants in Songkhla province
(Thailand).