A simple and rapid plating method for determination of lipase activity by observing the diameter of the strain and the hydrolytic circle around the strain on the culture is adopted. This is preliminary screening. After culturing in a trianger bottle on the shaker,a titration is used to determine their lipase activity. This is secondary screening. 10 fine strains are selected,the highest lipase activity is 4 45×10 -8 mol/s. The lipase activity of the strain of D6 was found to be 14 29×10 -8 mol/s,1...