The invention discloses a method for extracting roasted and fermented malt extract by
ethanol and application thereof in tobacco, in particular a method for performing step-by-step enzymolysis on malt, fermenting the malt,
roasting to increase
aroma, and extracting the malt extract by the
ethanol and application of the malt extract in tobacco
aroma increase. The malt extract is prepared from the following steps of: spraying and soaking the malt; rolling and crushing the malt; performing step-by-step enzymolysis on the malt; fermenting the malt by using
aroma-producing
yeast;
roasting to increase aroma; extracting by using the
ethanol; performing
solid-liquid separation; clarifying and filtering; and distilling and concentrating to obtain the malt extract. The malt extract is added into
cut tobacco of cigarettes to increase the aroma, reduce the
irritation and offensive taste, and improve the
mouthfeel and
aftertaste. The method has the advantages that: the technology of performing step-by-step enzymolysis on the malt, fermenting the malt, and extracting the malt extract by the ethanol is simple to operate, and the malt subjected to enzymolysis and
fermentation is immediately roasted without
enzyme inactivation treatment, which is more convenient. The extracted malt extract has the advantages of sweet
roasting and
brewing aroma, fine and smooth and rich aroma, and excellent aroma increasing effect in cigarettes.