The invention discloses an
aspergillus niger strain of a complex
enzyme for liquor making, and belongs to the technical field of
fermentation. The
aspergillus niger strain is collected in China general
microbiological culture collection center in July 9, 2015, and the collection number is CGMCC No.11064. Through culture medium optimization, a crude
enzyme fluid obtained after 48 hours of
solid fermentation contains various enzymes, wherein esterifying
enzyme activity is 615.8mg.100mL<-1>, saccharifying enzyme activity is 7828.9U.g<-1>, and
cellulase activity is 106.68U.g<-1>. Distilled liquid of esterified liquid obtained through
enzymatic synthesis of esterifying enzymes generated from the strain has a typically rich and pure
aroma of Luzhou-
flavor liquor, and the content of
ethyl hexanoate reaches 82.04% of the total
flavor component. By the enzymes of the complex enzyme,
utilization rate of
starch-type substances in liquor-making raw materials, liquor yield and the content of esters in liquor bodies can be increased, liquor body flavors can be improved, high-quality liquor rate can be increased, and development of the liquor making industry can be promoted.