Fermentation based on hydrolyzed corn and/or sugar cane mash to produce propionic acid
US9834797B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 17, 2014 |
| Grant date | Dec 5, 2017 |
| Priority date | — |
| Expiry date | Feb 17, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12P2203/00
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
A process to prepare propionic acid comprises preparing a fermentation broth of water; at least 30 weight percent hydrolyzed corn mash solids, hydrolyzed sugar cane mash solids, or a combination thereof, based on the combined weight of the fermentation broth as a whole; and propionibacteria; without including the typical, frequently very costly supplementation with vitamin and mineral packages. Surprisingly, these mash solids, which must often be disposed of following syrup production, are capable of supplying the nitrogen, micronutrients, vitamins and minerals known to be needed for propionibacteria fermentation, making their sole or significant use as fermentation mediums far more economical and therefore desirable than other fermentation mediums which require supplementation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.