STUDIES ON PRODUCTION OF PHYTASE ON SOLIDSTATE FERMENTATION
植酸酶固体发酵条件的研究

During the solid state fermentation of A. nige G2.1.1.1.4 for producing phytase, production ofphytase was repressed by high inorganic phosphorus content in wheat-bran. Carbon and nitrogen materials whichcan easily be used by the strain were added for improving growth of mycelium. The fast-growth mycelium couldconvent inorganic phosphorus into orgaric phosphorus quickly and can remove repression of inorganic phosphorusto production of phytase, The other culture conditions for production of phytaSe from G2.1.1.1.4 in solid statefermentation were also optimized by the method of signal factor assay and RSA G2.1.1.1.4 can produced 61- 66u / g. ssc of phytase under the optimal condition.