Abstract
The screening of filamentous fungi having the ability to decolorize molasses pigments was performed in Thailand, and some strains, belonging mainly to the class Deuteromycetes, were selected from among a total of 228 strains. Of these, nine showed decolorization yields of more than 50%, and they required different culture conditions, such as the glucose concentration, medium pt[ and nitrogen sources, for a high decolorization yield, respectively.
The isolated strain, D90, showed the highest decolorization yield (about 93%) wfhen it was cultivated at 30°C for 8 days in a molasses pigment solution containing glucose 2.5%, yeast extract 0.2%, KH2PO4 0.1% and MgSO4•7H2O 0.05%, the pH being adjusted to 6.0. This potent strain was identical with the order Mycelia Sterilia due to the following characteristics, septate hyphae formation and no clamp connections or spores.
