Yeast propagation simultaneous with saccharification
US10837030B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | May 26, 2016 |
| Grant date | Nov 17, 2020 |
| Priority date | — |
| Expiry date | May 26, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E50/30
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
The invention relates to a method for propagating yeast, for use in the production of a fermentation product from lignocellulosic biomass, including the steps that consist of: a. providing a reactor; b. placing in contact in said reactor: a population of yeasts capable of metabolising pentoses and hexoses, with 0.2 to 2.0 g of yeast solids per kg of prepared complete medium, raw marc from the pretreatment of the lignocellulosic biomass, with a solids content (MS) of 8% to 15%, nutrients, and cellulases, with 5 to 15 mg of proteins per gram of MS; and c. incubating the mixture at a temperature of 25° C. to 38° C., preferably 28° C. to 33° C., in microaerobiosis, in which the saccharification of the raw marc and the growth of the yeast are carried out simultaneously.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.