Monascus anka mutant strain was isolated using conventional mutation techniques in our laboratory. In our previous study, strain Monascus anka mutant showed high yield of yellow pigments with the characteristics of high protein adhesion, thermal stability, and wide-pH stability. This work focused on the agitation optimization in a 5 L fermentor of strain Monascus anka mutant and two stage agitation speed control strategy was operated as follows: the agitation speed was 400 r/min to improve the Monascus growth and yellow pigments production befo...