Acid protease: this product is developed and extracted from asp. usamii no.537. as an enzyme for\ncatalysis of protein hydrolysis under ph 2.5-4.0, this product can be used for alcohol fermentation, leather softening, wool dyeing, juice purification and feedstuff.\n\nneutral protease: this product is made from bac.subtilis no.1398 through fermentation and extraction\ntechnique. it can catalyze protein to hydrolyze into low molecular peptide and amino acid. the products can be used in the industry of leather softening and depilation, silk deg.