... high-tech bio-refined process. The product is rich in complete protein, balanced essential amino acids, vitamin B, ... greatly increase the growth rate and production yield in fermentation.2.Appearance:Paste: dark yellow or dark ... ect.l Microbiological mediumPseudomonas, acetobacter, gluconobacter oxydans, e.coli, bacillus subtilis, streptococcus lactic, staphylococcus, yeast and mycoplasma, ect. Yeast ...