Patent · US Active

Saccharomyces cerevisae strains

US9803254B2 · kind B2 · utility

0Cited by

3References

7Claims

0Family size

Assignee

SCANDINAVIAN TECHNOLOGY GROUP AB · SE

Inventors

Nicklas Bonander · Timrå, SE
Lisbeth Olsson · Mörbylånga, SE
Elia Tomas-Pejo · Handen, SE

Key dates

Filing date	Oct 15, 2014
Grant date	Oct 31, 2017
Priority date	—
Expiry date	Oct 15, 2034

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E50/10
WIPO fieldBiotechnology
WIPO sectorChemistry

Abstract

The present invention relates to a method of preparing a strain of sugar fermenting Saccharomyces cerevisiae with capability to ferment xylose, wherein said method comprises different procedural steps. The method comprises mating a first sporulated Saccharomyces cerevisiae strain with a second Saccharomyces cerevisiae haploid strain. Thereafter, screening for mated cells is performed, growing such mated cells, and verifying that mated cells exhibit basic morphology by microscopic inspection. Thereafter, creation of a mixture of the mated cells is performed, subjecting the mixture to continuous chemostat cultivation and obtaining the sugar fermenting Saccharomyces cerevisiae cells with capability to ferment xylose is performed. The invention also comprises strains obtained by said method.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.