EP0284186A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Improvements in or relating to colour production
Assignee: Dalgety UK Ltd
•
Filing: 1988-02-11
•
Granted: —
•
Expires: 2008-02-11
Abstract
Abstract A process of producing a distinctive colour comprises the steps of providing an aqueous mixture of Maillard reactants (a) and (b), and exposing the aqueous mixture to drying and reactive conditions such as spray drying, wherein substantially all the water is rapidly evaporated to yield a dry product having a colour which is distinctive relative to the aqueous mixture. Examples of Maillard reactants include various sugars one of which is dextrose, and various amino acids one of which is glycine.
Inventors
- 👤 David Allan Baines
- 👤 Paul Kenneth Filby
- 👤 Marek Piotr Jacek Kierstan
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 15:02
CPC Classifications
A; A23; A23L; A23L5/00; A23L5/40; A23L5/42; A23L5/47; A23L5/48; A23L27/00; A23L27/20; A23L27/21; A23L27/215
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
67 words
A process of producing a distinctive colour comprising the steps of providing an aqueous Maillard reaction mixture obtained from Maillard reactants (a) and (b), and exposing the aqueous mixture to drying and reactive conditions (e.g. spray drying) wherein substantially all the water is rapidly evaporated (e.g. in less than 10 seconds) to yield a dry product having a colour which is distinctive relative to the aqueous mixture.
Claim 2
Dependent Claim
67 words
A process of producing a distinctive colour comprising the steps of providing an aqueous Maillard reaction mixture obtained from Maillard reactants (a) and (b), and exposing the aqueous mixture to drying and reactive conditions (e.g. spray drying) wherein substantially all the water is rapidly evaporated (e.g. in less than 10 seconds) to yield a dry product having a colour which is distinctive relative to the aqueous mixture.
Claim 3
Dependent Claim
72 words
A process of producing a distinctive colour comprising the steps of providing an aqueous Maillard reaction mixture obtained from Maillard reactants comprising (a) an aldose or ketose sugar or Maillard intermediate derived from said sugar, and (b) an amino acid; and exposing the aqueous mixture to spray drying wherein substantially all the water is rapidly evaporated to yield a dry product having a colour which is distinctive relative to the aqueous mixture.
Claim 4
Dependent Claim
72 words
A process of producing a distinctive colour comprising the steps of providing an aqueous Maillard reaction mixture obtained from Maillard reactants comprising (a) an aldose or ketose sugar or Maillard intermediate derived from said sugar, and (b) an amino acid; and exposing the aqueous mixture to spray drying wherein substantially all the water is rapidly evaporated to yield a dry product having a colour which is distinctive relative to the aqueous mixture.
Claim 5
Dependent Claim
23 words
A process according to claim 1 or claim 2, wherein the non-aqueous content of the aqueous mixture is up to 40% by weight.
Claim 6
Dependent Claim
27 words
A process according to any one of the preceding claims, wherein the aqueous mixture also comprises a carrier material, e.g any of malto dextrin, starch and gum.
Claim 7
Dependent Claim
25 words
A process according to any one of the preceding claims, wherein the temperature of said drying and reactive conditions is 90°C-150°C (e. g. about 120°C).
Claim 8
Dependent Claim
32 words
A process according to any one of the preceding claims, wherein the Maillard reactant (a) is selected from any of: arabinose dextrose fructose galactose lactose maltose mannose raffinose ribose sucrose xylose glyceraldehyde.
Claim 9
Dependent Claim
50 words
A process according to any one of the preceding claims, wherein the Maillard reactant (b) is selected from any of: alanine arginine asparagine aspartic acid cysteine cystine glutamic acid glutamine glycine histidine leucine iso leucine lysine methionine phenylalanine proline serine taurine threonine tryptophan tyrosine valine hydrolysed vegetable or animal protein.
Claim 10
Dependent Claim
28 words
A process according to any one of the preceding claims, wherein the proportions by weight of the Maillard reactant (a) to the Maillard reactant (b) are substantially 1:1.
Claim 11
Dependent Claim
24 words
A process according to any one of the preceding claims, wherein the Maillard reactant (a) is dextrose and the Maillard reactant (b) is glycine.
Claim 12
Dependent Claim
19 words
A process according to claim 9. wherein the aqueous mixture comprises a carrier material comprising malto dextrin and starch.
Claim 13
Dependent Claim
29 words
11 A method of colouring foods, beverages, agricultural products, cosmetics, or pharmaceuticals by the incorporation of a product of a process according to any one of the preceding claims.
Claim 14
Dependent Claim
23 words
A food, beverage, agricultural product, cosmetic or pharmaceutical containing a product of a process according to any one of claims 1 to 10.
Claim 15
Dependent Claim
77 words
A colour produced by a process according to claim 1 or claim 2, wherein the Maillard reactants are: (a) fructose and proline; (b) fructose, dextrose, arginine and glycine; (c) dextrose and arginine, (d) xylose and histidine; (e) xylose and glycine; (f) dextrose and glycine; (g) xylose and leucine; (h) xylose and lysine; (i) glyceraldehyde, ascorbic acid, 3-hydroxy-2-butanone, diacetyl, or glyoxal; and glycine; or (j) a mixture of sugars comprising xylose, arabinose, and dextrose; and hydrolysed animal protein.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.