Autolytic: yeast, biscuit, bread, toast. 自溶:酵母,饼干,面包,烤面包。 The results showed that RY-3 was suitable as start strain of riboflavin yeast, its content of intracellular riboflavin was 117.9mg/ kg, nucleic acid and raw protein were moderate, autolytic ratio and biomass were higher than other strains.