Abstract: It is an object of the present invention to provide a method of producing a foaming alcoholic beverage such as beer, low-malt beer, and a beer-flavored foaming alcoholic beverage obtained by producing, without using any kind of barley (e.g., barley, wheat, malt), a pre-fermentation liquid using at least a syrup containing sources of carbon, sources of nitrogen, hops and water as raw materials and fermenting the pre-fermentation liquid with use of brewers' yeasts, wherein germinated grains are used; to thereby increase fermentability and attain superior flavor and improved foam quality. It is also an object of the present invention to provide an alcoholic beverage manufactured by the aforementioned method.

Abstract: It is an object of the present invention to provide a method for identifying brewer's yeast genes associated with alcoholic beverage flavor, to allow production of alcoholic beverages with desirable flavor by controlling the expression of the identified genes. In order to achieve this object, there is provided a method for identifying brewer's yeast genes using gene analysis means employing a DNA array or a DNA array and two-dimensional electrophoresis, a DNA array binding identified genes, and a method of selecting brewer's yeast using the DNA array.

Abstract: A production method of a beer-taste alcoholic beverage with foaming properties which does not use barley wheat and malt, in which a proteolytic enzyme improving generating foam and foam stability is used as a part of a substance of raw materials, and the alcoholic beverage with foaming properties produced by the production method are disclosed The production method of an alcoholic beverage with foaming properties, in which a pre-fermentation liquid is processed using a syrup containing sources of carbon, sources of nitrogen, hops, coloring matter, an improving substance for generating foam and for foam stability, and water as raw materials without using barley, wheat and malt, and the pre-fermentation liquid is fermented using a brewers' yeast.

Abstract: It is an object of the present invention to provide a method of producing a foaming alcoholic beverage such as beer, low-malt beer, and a beer-flavored foaming alcoholic beverage obtained by producing, without using any kind of barley (e.g., barley, wheat, malt), a pre-fermentation liquid using at least a syrup containing sources of carbon, sources of nitrogen, hops and water as raw materials and fermenting the pre-fermentation liquid with use of brewers' yeasts, wherein germinated grains are used; to thereby increase fermentability and attain superior flavor and improved foam quality. It is also an object of the present invention to provide an alcoholic beverage manufactured by the aforementioned method.