The quantity of acetic aldehyde has decreased by 75%,acetyl has decreased by 25%, the attenuation has rised by 16%. After measurating the flavor material of improved strain through the gas chromatograph.

• 乙醛含量下降了75%25; 改良菌株的双乙酰含量比原始菌株的低25%25左右,发酵度上升16%25;