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1. (WO2018007491) FOOD GRADE NATIVE RAPESEED PROTEIN ISOLATE AND PROCESS FOR OBTAINING IT

Pub. No.:    WO/2018/007491    International Application No.:    PCT/EP2017/066870
Publication Date: Fri Jan 12 00:59:59 CET 2018 International Filing Date: Fri Jul 07 01:59:59 CEST 2017
IPC: A23J 1/14
A23J 3/14
A23L 11/30
A23L 33/185
Applicants: DSM IP ASSETS B.V.
Inventors: WILLEMSEN, Johannes Hendrikus Maria
SMOLDERS, Gerardus Johannes Franciscus
ZAMOLO, Richard
Title: FOOD GRADE NATIVE RAPESEED PROTEIN ISOLATE AND PROCESS FOR OBTAINING IT
Abstract:
The present invention is directed to a native rapeseed protein isolate comprising 40 to 65 wt.% cruciferins and 35 to 60 wt.% napins and having a solubility of at least 88% over a pH range from 3 to 10 at a temperature of 23±2°C with a microbe level of less than 1,000 CFU/g. The use of the native rapeseed protein isolate in food products or pet food products is claimed. A process for obtaining a native rapeseed protein isolate comprising the following steps is also claimed: i) mixing cold-pressed rapeseed oil meal with an aqueous liquid at a temperature of from 45 to 65°C; ii) separation of the aqueous liquid from the mixture obtained in step i); iii) decreaming of the aqueous liquid obtained in step ii); iv) adjusting the pH of the decreamed aqueous liquid obtained in step iii) to neutral by adding acid or base, and mixing with a precipitant to obtain a precipitate; v) removing the precipitate obtained in step iv) to obtain an aqueous liquid; vi) concentrating and washing the aqueous liquid obtained in step v); vii) isolating native rapeseed protein isolate from the concentrated and washed aqueous liquid obtained in step vi) by means of drying.