Food or edible material: processes – compositions – and products – Addition of dye or pigment – including optical brightener
Patent
1978-03-13
1980-01-22
Hunter, Jeanette M.
Food or edible material: processes, compositions, and products
Addition of dye or pigment, including optical brightener
426540, 426656, 426481, 426495, 426650, A23L 127, A23L 1221
Patent
active
041851218
ABSTRACT:
A process for the treatment of an acid hydrolysate of vegetable matter for separating it into a dark colored fraction and a light colored fraction is disclosed. In a turbulent flow, it is placed in contact with at least one semi-permeable membrane which is stable in an acidic medium under a pressure of from 4 to 50 kg/cm.sup.2 which produces a first lightly colored liquid or permeate which passes through the membrane, the average color intensity of which, measured by its extinction, is about one tenth of that of the hydrolysate, and a second strongly colored liquid or retentate which does not pass through the membrane. The dried retentate is used as a seasoning and/or coloring agent.
REFERENCES:
patent: 3391001 (1968-07-01), Sair
patent: 3622556 (1971-11-01), O'Connor
patent: 3736147 (1973-05-01), Iacobucci et al.
patent: 3929890 (1975-12-01), Pfister
patent: 4018752 (1977-04-01), Buhler et al.
Guggenbuhler Max
Huster Lienhard B.
Hunter Jeanette M.
Societe d'Assistance Technique pour Produits Nestle S.A.
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