Flocculent yeast and method for production thereof
US8198089B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2009 |
| Grant date | Jun 12, 2012 |
| Priority date | — |
| Expiry date | Mar 18, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E50/10
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
It is to provide a novel Kluyveromyces marxianus transformant having thermotolerance and flocculation property, suitable for the industrial production of bioethanol, by introducing a foreign flocculation gene into Kluyveromyces marxianus, and an efficient method for producing the transformant. The present inventors focused on the flocculation gene FLO of Saccharomyces cerevisiae as a foreign gene to confer flocculation property to Kluyveromyces marxianus and produced a linear DNA fragment comprising a known expression promoter sequence and a FLO gene sequence derived from Saccharomyces cerevisiae. As a result of introducing this linear DNA fragment into Kluyveromyces marxianus, the present inventors have confirmed that Kluyveromyces marxianus transformant can be obtained efficiently, and that the flocculation property of the above transformant is unexpectedly and significantly enhanced. The present invention has been thus completed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.