Enzymatic production of alcohol esters for recovery of diols produced by fermentation
US8697404B2 · kind B2 · utility
19Cited by
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12Claims
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Key dates
| Filing date | Dec 15, 2011 |
| Grant date | Apr 15, 2014 |
| Priority date | — |
| Expiry date | Dec 15, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P60/87
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
Diols produced in fermentation are processed in broth by esterification of the product diol with a carboxylic acid (e.g., fatty acid) and a catalyst (e.g., lipase) capable of esterifying the product diol, such as 1,3-propanediol, with the carboxylic acid to form the diol esters. The diol esters can be extracted from the broth, and the product diol recovered from the diol esters. The carboxylic acid can also serve as an extractant for removal of the diol esters from the fermentation medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.