The production of Cyclosporin A using wheat bran as the solid substrat
e was attempted using Tolypocladium sp. and it was found that the yiel
d was 10 times more than the yield obtained by submerged fermentation.
Hydrolysing the wheat bran using dilute HCl was found to increase the
yield. Different solvents were used for the optimization of extractio
n of Cyc A from the fermented bran.