dc.description.abstract |
A solid state fermentation method was developed for the production of citric acid from
date pulp (obtained of date syrup production from the process) by Aspergillus niger
PTCC 5010. Poor yield was obtained when potassium ferrocyanide treated date pulp were
used as substrate, but methanol at a 3-4% concentration markedly increased the formation
of citric acid from the waste. The optimum range of pH and moisture for citric acid
production were 3.5-4.5, and 70-80% respectively. This method produced about 168g citric
acid per kg of date pulp under optimum conditions. On the basis of reducing sugar
consumed, the yield was 87% within eight days. |
en_US |