STUDIES ON THE CONDITIONS OF QUANTITY OF BIOCONCENTRATION Zn AND THE COMBINED STATE OF Zn BY FLAMMULINA VELUTIPES
金针菇富锌条件及锌结合形态的研究

The presented paper analysed and studied the conditions of submerged fermentation of quantity of bioconcentration Zn by Flammulina velutipes. The result showed that the ZnAc2 was the better Zn source of submerged fermentation of Flammulina velutipes. Initial pH 6.5, 0.1% citric acid and 0.4% CMC-Na were the better conditions for bioconcentration of Zn and increase the biomass. During the transforming process of organized Zn by Flammulina velutipes, about 93% ZnAc2 was organic-Zn, 50% was protein-Zn, and 34% was Zn binding hydrocarbonate and lipoid material.