Method for increasing total production of 4-hydroxybenzoic acid

Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Preparing oxygen-containing organic compound

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Details

43525233, 4352528, 435949, C12P 742, C12N 120

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active

061141577

ABSTRACT:
This invention pertains to a method of production of 4-hydroxybenzoic acid, with purification and recovery of 4-hydroxybenzoic acid directly from the fermentation medium of a cultured organism, in the presence of other chemical species. Ion exchange resin is used during the fermentation process to recover the chemical product without the necessity of separating the biomass from the fermentation supernatant by filtration after fermentation is complete and then treating the filtrate to recover the product. This reduces or eliminates the need for filtration steps and eliminates the need for energy-intensive water removal processes. Furthermore, the removal of the product during the fermentation dramatically increases the production of the product during the fermentation process. This method therefore can both increase the amount of product produced in a single fermentation run and reduce the per unit cost of its biocatalytic production.

REFERENCES:
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B. Atkinson and F. Mavituna, Biochemical Engineering and Biotechnology Handbook, second edition, Stockton Press, NY, pp. 905-1022 (1991).

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