... , amino acids, minerals and other growth stimulants. Used in microbial fermentation, such as antibiotics (penicillin, erythromycin, gentamicin, spectinomycin hydrochloride, aureomycin, etc ... -soluble vegetable protein and water-soluble nutrients etc. in bio-fermentation process PropertiesSpecificationsAppearanceyellow beigeProtein ,%42.0 minLoss on drying,%8.0 ...