PREPARATION OF MICROBIAL OIL CONTAINING POLYUNSATU

专利名称：PREPARATION OF MICROBIAL OIL

CONTAINING POLYUNSATURATED FATTYACIDS

发明人：STREEKSTRA, Hugo,BROCKEN, Petrus,

Joseph, Maria

申请号：EP03740299.7申请日：20030620公开号：EP1513941B1公开日：20160113

摘要：The present invention describes an improved pasteurisation protocol forpasteurising microbial cells is disclosed. The protocol has three stages, a first heatingstage, a second plateau stage at which the cells are held at a (maximum and) constanttemperature, and a third cooling stage. Both the heating and the cooling stages arerapid, with the temperature of the cells passing through 40 to 70°C in no more than 30minutes in the heating stage. The heating rate is at least 0.5°C/minute and during coolingis at least -0.5°C/minute. The plateau maximum temperature is from 70 to 85°C. Byplotting 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 doesthis result in a smaller energy input (and so a reduction in costs), but a better quality (andless oxidised) oil results having a peroxide value (POV) of less than 1.5 and an anisidinevalue (AnV) of less than 1.0.

申请人：DSM IP ASSETS BV

地址：NL

国籍：NL

代理机构：Elkenbracht, Johan Christiaan

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