The β-glucosidase from abalone( Haliotis diversicolor diversicolor) visceral was separated, purified through a combined technique including precipitation with ammonium sulfate,dialysis,ion-exchange chromatography and gel-filtration chromatography.The result of SDS-PAGE showed that the enzyme is a single dimer,which has a molecular weight of about 90 kDa,as well as the 8 N-terminal amino acids sequence is AGMLYPRV.The optimum temperature of the β-glucosidase was 50 ℃,and the pH was 5.0.The enzyme activity wa...