EFFECT OF HETEROTROPHIC BACTERIA ON DIFFERENT HUMIC SUBSTANCES IN MIXED BATCH CULTURES

Humic substances extracted from different soil samples and synthetic humic compounds (2 melanoidins and a synthetic polymer) were used as the sole carbon source in liquid media inoculated with a mixed bacterial community selected by adaptation culture technique, and incubated for 90 or 100 d. Results show that a high resistance to degradation of humic compounds by heterotrophic bacteria. -from Authors