Deaeration process

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United States of America Patent

PATENT NO 10041097
APP PUB NO 20120095246A1
SERIAL NO

13333252

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Abstract

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A process for producing an oil, or a polyunsaturated fatty acid (PUFA), is described where an aqueous liquid comprising cells is deaerated, and the oil or PUFA is obtained from the cells. Deaeration can be performed by a wide variety of techniques, including the application of a vacuum (or reduced pressure), mechanical deaeration or degassing by reduced stirring or subjecting the broth to centrifugal forces, reducing viscosity (by dilution or heating), reduction in the supply of oxygen or air during fermentation or a reduction in stirring rate, lowering the pH (to lower the solubility of CO2), filtration using PTFE capillaries, gas displacement (by bubbling in nitrogen or helium) or chemical deaeration (using oxygen scavengers).

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Patent Owner(s)

Patent OwnerAddress
DSM IP ASSETS B V6411 TE HEERLEN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Schaap, Albert Barendrecht, NL 21 746
Verkoeijen, Daniel The Hague, NL 20 122

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