METHOD OF PRODUCING CANOLA PROTEIN ISOLATE INVOLVING ISOELECTRIC PRECIPITATION

摘要

FIELD: food industry. ^ SUBSTANCE: invention relates to a method for production of a protein isolate of oil seed meal. The canola protein isolate production method involves multiple stages, (a) Canola seed meal extraction to cause solubilisation of canola protein in canola seed meal and produce water solution of canola protein with pH from 5 to 6.8. (b) Canola protein water solution separation from canola seed meal residues. (c) Canola protein water solution acidation for pH to be 3 - 4 in order to provide for isoelectric precipitation of canola protein isolate with protein content min. 90 Wt % (N ù 6.25). (d) Separation of canola protein isolate having been isoelectrically precipitated from the supernatant. ^ EFFECT: invention enables production of canola protein isolates consisting mostly of 7S canola protein by way of isoelectric precipitation of canola oilseed meal extracts with water salt solution and canola protein isolates consisting mostly of 2S canola protein from supernatant produced at the isoelectric precipitation stage. ^ 13 cl, 25 tbl, 12 ex