Process for the production of lupin extracts from lupins, comprising: (a)
extracting lupin meal or flour with water at alkaline pH; (a) separating
an alkali soluble lupin protein containing component from an alkali
insoluble fibrous component; (b) adjusting the pH of the protein
component with acid to a pH between 3-5.0 to precipitate a food grade
lupin protein extract (PF1), from an acid soluble lupin protein
containing component, collecting said precipitated food grade lupin
protein extract (PF1), adjusting the pH of the extract to pH 5-6.5 and
thereafter drying the extract to give a proteinaceous extract (PF1); and
optionally, (c) dehydrating the acid soluble lupin protein containing
component to give a second food grade lupin protein extract (PF3); or (e)
raising the pH of the acid soluble lupin protein component to pH 5.7, and
optionally recovering a lupin protein isolate (PF2), followed by
dehydrating the soluble lupin protein component to give a third food
grade lupin protein fraction (PF3). Further, there is described a lupin
hydrocolloid fraction and a lupin fibre fraction.