Composite yeast suitable for high concentration alcohol fermentation from sugar-containing raw materials

A composite yeast suitable for high concentration alcohol fermentation from sugar-containing raw materials, wherein the composite yeast comprises any kind of dried yeast selected from Brewers yeast Saccharomyces cerevisiae Hansen of Saccharomyces cerevisiae and grape wine yeast Saccharomyces uvarum Beijerinek, and nutritious materials which are necessary for yeast growth, the nutritious materials include:

• the dried yeast 40-70 parts by weight, a nitrogen source 15-35 parts by weight, a phosphorous source 3-7 parts by weight, a yeast gourmet 10-15 parts by weight and a bacteriostatic 0.5-1.2 parts by weight.

A method for the preparation of the composite yeast suitable for high concentration alcohol fermentation from sugar-containing raw materials, wherein the composite yeast comprises any kind of dried yeast selected from Brewers yeast Saccharomyces cerevisiae Hansen of Saccharomyces cerevisiae, grape wine yeast Saccharomyces uvarum Beijerinek, and nutritious materials which are necessary for yeast growth, the nutritious materials include:

• the dried yeast 40-70 parts by weight, a nitrogen source 20-40 parts by weight, a phosphorous source 5-10 parts by weight, an other inorganic salt 2.5-5 parts by weight, a trace vitamin 1-2.5 parts by weight and a bacteriostatic 0.5-1.2 parts by weight, comprising crashing all of the components separately, excluding a dried yeast;
• mixing the dried yeast and the crashed material of the other components in a certain weight ratio, and mixing the dried yeast and the other components uniformly by the means of mechanical stirring or manually operate mixing;
• and obtaining the composite yeast.

A method for the preparation of the composite yeast suitable for high concentration alcohol fermentation from sugar-containing raw materials, wherein the composite yeast comprises any kind of dried yeast selected from Brewers yeast Saccharomyces cerevisiae Hansen of Saccharomyces cerevisiae and grape wine yeast Saccharomyces uvarum Beijerinek, and nutritious materials which are necessary for yeast growth, the nutritious materials include:

• the dried yeast 40-70 parts by weight, a nitrogen source 15-35 parts by weight, a phosphorous source 3-7 parts by weight, a yeast gourmet 10-15 parts by weight and a bacteriostatic 0.5-1.2 parts by weight, comprising crashing all of the components separately, excluding a dried yeast;
• mixing the dried yeast and the crashed material of the other components in a certain weight ratio, and mixing the dried yeast and the other components uniformly by the means of mechanical stirring or manually operate mixing;
• and obtaining the composite yeast.