Composite yeast suitable for high concentration alcohol fermentation from sugar-containing raw materials
US8263374B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2008 |
| Grant date | Sep 11, 2012 |
| Priority date | — |
| Expiry date | Oct 26, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E50/10
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
The present invention relates to a composite yeast suitable for high concentration alcohol fermentation from sugar-containing raw materials, characterizing in that 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. The present invention further relates to a method for preparation of the composite yeast suitable for high concentration alcohol fermentation from sugar-containing raw materials. Using the composite yeast of the present invention to proceed with sugar fermentation can increase fermentation alcoholicity, decrease residual sugar content, and allows the final alcoholicity of standard raw material, such as sucrose to attain to 14.5-15.5% v/v, and the amount of the residual reducing sugar in …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.