A technique was studied for extracting calcium phytate,a product with high added value from wastewater in the production of starch with corns.

Rice bran was used as the raw materials to produce calcium phytate by ultrasonic method.

The operation methods of the sections of raw material selection, acid immersion, filtration and neutralization in the process of calcium phytate production was tried to be improved so as to better the product quality and increase the product yield, additionally the theoretical basis was provided.

Purification of Phytin and Determination of Phosphorus Content in Phytin;

The technological condition of raising phytin yield from corn-immersion water;

Study on drawing inositol from phytin by hydrolysis enzyme method;

The extracting means and applications of extractions that come from rice bran are summarized,the extractions include rice bran oil,rice bran protein,rice bran polysaccharide,rice bran phytin et al.

In nature leonardite is rich in fulvic acid calcium.