... of Chinese Pharmacopoeia by autolysis, hydrolysis, separation, concentration and other modern high-tech bio-refined process. The product ... of yeast which can greatly increase the growth rate and production yield in fermentation.AppearancePaste: Dark yellow or dark brownPowder ... lactic, staphylococcus, yeast and mycoplasma, ect. Storage:Please store in a cool and dry place, and tighten the package if ...