Using Bavendamm's reaction and O-methoxyphenol titration as primary screening methods,18 Volvariella volvacea strains were screened for high production of laccase.13 strong positive strains grown on Bavendamm plate containing 0.4mmol/L Bavendamm were selected according to their diameters and shades of coloration circle.5 strains were selected according to the time and shades of coloration circle when O-methoxyphenol titration method was adopted.When further screening was taken in submerged fermentation,V123...