Microbial co-culture production of propionic acid
US4794080A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 16, 1984 |
| Grant date | Dec 27, 1988 |
| Priority date | — |
| Expiry date | Apr 16, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S435/885
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
A simultaneous sequential anaerobic fermentation process for the in vitro production of propionic and acetic acids is disclosed. The process comprises employing an obligatory two-component co-culture which maintains a relatively constant ratio of species populations over multiple passages. A first co-culture component is a Lactobacillus or Streptococcus which homofermentatively converts the hexose to lactic acid. A second microorganism in the co-culture is a Veillonella which is metabolically incapable of assimillating the hexose and converts the lactic acid product to propionic and acetic acids. The co-culture is inoculated into a nutrient growth feedstock such as whole whey or a clarified dairy whey lactose permeate which contains a metabolizable source of a hexose such as glucose, lactose or sucrose.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.