Pasteurisation process for microbial cells and microbial oil
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United States of America Patent
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Dec 3, 2019
Grant Date -
Mar 23, 2017
app pub date -
Aug 26, 2016
filing date -
Jun 19, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
An improved pasteurisation protocol for pasteurising microbial cells is disclosed. The protocol has three stages, a first heating stage, a second plateau stage at which the cells are held at a (maximum and) constant temperature, and a third cooling stage. Both the heating and the cooling stages are rapid, with the temperature of the cells passing through 40 to 80° C. in no more than 30 minutes in the heating stage. The heating rate is at least 0.5° C./minute and during cooling is at least −0.5° C./minute. The plateau maximum temperature is from 70 to 85° C. By plotting the pasteurisation protocol on a time (t, minutes) versus temperature (T, ° C.) graph, one obtains a trapezium having an area less than 13,000° C. minute. Not only does this result in a smaller energy input (and so a reduction in costs), but a better quality (and less oxidized) oil results having a peroxide value (POV) of less than 1.5 and an anisidine value (AnV) of less than 1.0.
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International Classification(s)
- C11B:PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EX....
- A61K:PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOS....
- C12P:FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESI....
- A23L:FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT....
- C12N:MICRO-ORGANISMS OR ENZYMES; COMPOSITIONS THEREOF
- C07C:ACYCLIC OR CARBOCYCLIC COMPOUNDS
- A23K:FODDER
- A61Q:USE OF COSMETICS OR SIMILAR TOILET PREPARATIONS
- A23D:EDIBLE OILS OR FATS, e.g. MARGARINES, SHORTENINGS,....
- A61L:METHODS OR APPARATUS FOR STERILISING MATERIALS OR ....
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