Classifications

• • A—HUMAN NECESSITIES
  • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
  • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
  • A23L2/00—Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation
  • A23L2/52—Adding ingredients
  • A23L2/58—Colouring agents
• • A—HUMAN NECESSITIES
  • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
  • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
  • A23L5/00—Preparation or treatment of foods or foodstuffs, in general; Food or foodstuffs obtained thereby; Materials therefor
  • A23L5/40—Colouring or decolouring of foods
  • A23L5/42—Addition of dyes or pigments, e.g. in combination with optical brighteners
  • A23L5/43—Addition of dyes or pigments, e.g. in combination with optical brighteners using naturally occurring organic dyes or pigments, their artificial duplicates or their derivatives
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
  • C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
  • C09B67/006—Preparation of organic pigments
  • C09B67/0066—Aqueous dispersions of pigments containing only dispersing agents
  • C09B67/0067—Aqueous dispersions of phthalocyanine pigments containing only dispersing agents
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
  • C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
  • C09B67/0071—Process features in the making of dyestuff preparations; Dehydrating agents; Dispersing agents; Dustfree compositions
  • C09B67/0083—Solutions of dyes

Definitions

• TITLE A composition comprising chlorophyllin as a green pigment
• the present invention relates to a green coloring composition comprising copper chlorophyllin as a green pigment. It may be used in the manufacture of food and pharmaceutical products.
• Copper chlorophyllin is today used commercially as a green pigment in different food products.
• C-10.000P-WS-AP The commercially available acid stable (e.g . in soft drink) transparent natural green color product of Chr. Hansen A/S, Denmark termed "C-10.000P-WS-AP" comprises following ingredients: Sodium copper chlorophyllin (E 141(ii)), propylene glycol (E 1520) (69%), polysorbate 80 (E 433) (23%) - see e.g . the publicly available product information.
• this natural green C-10.000P-WS-AP product is used in e.g . soft drinks (low pH around 3-4) a stable transparent green color is obtained .
• chlorophyllin (green color) particles are very small in the suspension - i.e. very small chlorophyllin (green color) particles dispersed in the low pH water phase (e.g . soft drink).
• Polysorbate 80 (Tween 80) is a detergent/emulsifier - herein alternatively expressed dispersing agent.
• Polysorbate 80 (Tween 80) may be said to have an unwanted unpleasant taste.
• CapColors®Green 100 Another natural green color product of Chr. Hansen A/S, Denmark is termed CapColors®Green 100 and it may be characterized as made by milling in order to create sufficient small chlorophyllin (green color) particles. According to the public available product information - for this product the color will look more or less opaque (i.e. one may say that it is less transparent than the C-10.000P-WS-AP product discussed above).
• CapColors®Green product does not comprise Polysorbate 80 and may therefore be seen as a prior art solution to make a product without the unpleasant taste of Polysorbate 80 (Tween 80).
• the compound quillaja is a known detergent/emulsifier.
• WO2011/119290A1 and WO2011/154407A1 describe use of quillaja as emulsi- fier in an oil-in-water emulsion.
• Claim 14 of WO2011/154407A1 relates to an oil-in-water emulsion comprising chlorophyll.
• chlorophyll is soluble in oil/fat and not in water at any herein relevant pH range.
• the herein relevant copper chlorophyllin green pigment is not soluble in oil/fat.
• the problem to be solved by the present invention is to provide a green color- ing composition, giving a green transparent color in acid applications, comprising copper chlorophyllin as a green pigment, wherein the green coloring composition does not have a herein relevant unwanted unpleasant taste (i.e. is not comprising significant amounts of Polysorbate 80 (Tween 80)).
• the solution is based on the fact that the present inventors has identified that a water-dispersible composition using quillaja as dispergent agent is very good in relation to use of copper chlorophyllin as a green pigment - see working examples herein for further details.
• An advantage of quillaja is that it does not have a herein relevant unwanted unpleasant taste (i.e. like Polysorbate 80 (Tween 80)).
• Polyglycerol and quillaja have both a relatively high Hydrophilic-lipophilic balance (HLB) value - however, even though Polyglycerol has a relatively high HLB value it is not working properly in the present context.
• HLB Hydrophilic-lipophilic balance
• a first aspect of the invention relates to a water-dispersible green composition
• a water-dispersible green composition comprising from 0.5% to 70% (w/w on a water free basis) of copper chlorophyllin as a green pigment and from 1.0% to 80% (w/w on a water free basis) of quillaja.
• composition of the first aspect is shown in working Example 1 herein - wherein the composition comprises 8.2% (w/w on a water free basis) of copper chlorophyllin and 26.2% (w/w on a water free basis) of quillaja.
• Example 1 The rest of the material/substance of the composition/suspension of Example 1 herein was Propylene glycol : 65.6% (w/w on a water free basis) and around 50-52% water.
• the water-dispersible green composition of the first aspect comprises less than 90% (w/w) of water.
• water-dispersible composition as described herein may advantageously be used for green coloring of a herein relevant edible, drinkable or pharmaceutical product - such as in particular a product with a herein relevant not alkaline pH value.
• a stable transparent green solid-in-water dispersion product e.g . a soft drink or a wine gum product
• a stable transparent green soft drink product was made.
• a second aspect of the invention relates to a transparent green solid-in-water dispersion product comprising copper chlorophyllin particles as a green pigment and quillaja as dispergent agent and wherein the pH of the dispersion is from pH 1 to pH 8 and wherein the ratio (w/w) of copper chlorophyl- lin and quillaja is a ratio from 0.01 to 10.
• a third aspect of the invention relates to a method for preparing the water- dispersible composition of the first aspect, wherein method comprises the following steps:
• a fourth aspect of the invention relates to a method for making a transparent green solid-in-water dispersion product of the second aspect, wherein the method comprises dispersing the water-dispersible composition of the first aspect into a water based product with a pH 1 to pH 8 to thereby obtain the transparent green solid-in-water dispersion product of the second aspect.
• a fifth aspect of the invention relates use of the water-dispersible composition as described herein to green coloring of an edible, a drinkable or a pharmaceutical product.
• pigment relates to a material that changes the color of light it reflects as the result of selective color absorption. This physical process differs from fluorescence, phosphorescence, and other forms of luminescence, in which the material itself emits light.
• green pigment simply relates to a pigment that gives a green color.
• copper chlorophyllin will always give a green color and the term "green” in relation to use of copper chlorophyl- lin as described herein may therefore be seen as merely descriptive - i.e. not a limiting term.
• green coloring in relation to the use of the water-dispersible composition as described herein simply relates to the fact that the copper chloro- phyllin pigment gives a green color.
• solid-in-water dispersion should be understood as the skilled person would understand it in the present context. For instance, in relation to a transparent green solid-in-water dispersion product as discussed herein - cop- per chlorophyllin particles are solid particles dispersed in the water phase of the solid-in-water dispersion.
• Beside the copper chlorophyllin (as a green pigment) and the quillaja the water-dispersible composition as described herein may of course comprise other herein relevant material/substances.
• the water-dispersible composition comprise another emulsifi- er (dispergent agent) than quillaja.
• emulsifi- er dispenser agent
• relevant percentage e.g . copper chlorophyllin (as a green pigment) and e.g . quillaja the sum of such percentages can of course not exceed 100% in the water- dispersible composition as described herein.
• Copper chlorophyllin is as such a well known green pigment - it has the common E-number E141(ii) (see EU food additive legislation).
• the copper chlorophyllin may e.g. be potassium copper chlorophyllin or sodium copper chlorophyllin.
• An example of a herein suitable quillaja product is a to 20% in water diluted quillaja product that has the common E-number E999 (see EU food additive legislation)
• the Merck Index Twelfth Edition mentions examples of herein suitable quillaja product/sources - such as e.g . Merck Index number 8222 (Quillaja, from bark) and Merck Index 8223 (Quillaja, Saponin).
• a relative concentrated wa- ter-dispersible green composition as described herein - e.g . in order to have a concentrated color product, wherein one e.g . only has to add a few drops to e.g . a soft drink product in order to get a soft drink with a herein relevant suitable green color.
• the water-dispersible green composition as described herein comprises less than 70% (w/w) of water, more preferably less than 50% (w/w) of water and even more preferably less than 40% (w/w) of water.
• the water-dispersible composition comprises from 2% to 95% (w/w on a water free basis) of a solvent, such as e.g . propylene glycol as a solvent.
• a solvent such as e.g . propylene glycol as a solvent.
• a preferred composition comprising 65.6 % propylene glycol (w/w on a water free basis) as a solvent is described .
• the water-dispersible composition comprises from 15% to 85% (w/w on a water free basis) of a solvent, such as e.g. propylene glycol as a solvent.
• a solvent such as e.g. propylene glycol as a solvent.
• the water-dispersible composition may be a liquid composition, in particular wherein the liquid composition is a liquid solution.
• composition of working Example 1 herein is an example of a liquid solution.
• the water-dispersible composition may be a dry powder composition.
• the water-dispersible green composition as described herein comprising from 2% to 40% (w/w on a water free basis) of copper chlorophyllin as a green pigment and from 5% to 60% (w/w on a water free basis) of quillaja; more preferably the water-dispersible green composition as described herein comprising from 3% to 20% (w/w on a water free basis) of copper chlorophyllin as a green pigment and from 15% to 35% (w/w on a water free basis) of quillaja.
• an example of a herein relevant transparent green solid- in-water dispersion of the second aspect could e.g . be a soft drink or wine gum.
• a herein relevant advantage of water-dispersible composition as described herein it that it may be used obtain a stable transparent green solid-in-water dispersion product (e.g . a soft drink or a wine gum product) - see e.g . working Example 2 herein, where a stable transparent green soft drink product was made.
• a second aspect of the invention relates to a transparent green solid-in-water dispersion product comprising copper chloro- phyllin particles as a green pigment and quillaja as dispergent agent and wherein the pH of the dispersion is from pH 1 to pH 8 and wherein the ratio (w/w) of copper chlorophyllin and quillaja is a ratio from 0.01 to 10.
• quillaja works as dispergent agent in the sense that it stably disperses the copper chlorophyllin particles so there is not unwanted sedimentation of the copper chlorophyllin parti- cles.
• quillaja work as a dispergent agent in the sense that it is involved in getting copper chlorophyllin particles of a relatively small size.
• the copper chlorophyllin particles are too big in size then will the product (e.g . a soft drink) not be properly transparent.
• a further advantage of such small particles is that they have very little tendency of sedimentation.
• the transparency is related to the size of the copper chlo- rophyllin particles and this is related to the ratio (w/w) of copper chlorophyllin and quillaja in the transparent product of interest.
• the transparent green solid-in-water dispersion as described herein is a dispersion, wherein the ratio (w/w) of copper chlorophyllin and quillaja is a ratio from 0.03 to 5; more preferably a ratio from 0.05 to 2 and even more preferably a ratio from 0.1 to 1.
• the transparent green solid-in-water dispersion as described herein is a dispersion, wherein the copper chlorophyllin particles are having an average particle diameter of less than 5 prn, more preferably the copper chlorophyllin particles are having an average particle diameter of less than 2 pm, even more preferably the copper chlorophyllin particles are having an average particle diameter of less than 1 pm and most preferably the copper chlorophyllin particles are having an average particle diameter of less than 200 nm.
• a transparent green solid-in-water dispersion as described herein may be a dispersion, wherein the pH of the dispersion is from pH 1 to pH 6 or wherein the pH of the dispersion is from pH 1 to pH 5.
• the pH of a soft drink may be around pH 3.
• a transparent green solid-in-water dispersion may be a herein relevant edible, drinkable or pharmaceutical product.
• transparent green solid-in-water dispersion is a food product or a beverage product - preferably for human use.
• Preferred examples of edible or drinkable product may be a soft drink or wine gum.
• a method for preparing the water-dispersible composition may be a soft drink or wine gum.
• the third aspect of the invention relates to a method for preparing the water-dispersible composition of the first aspect, wherein meth- od comprises the following steps:
• step (ii) adding the solution of step (i) to a solution of quillaja under stirring to thereby obtain the water-dispersible composition of the first aspect.
• a herein suitable solvent may propylene glycol - in working Example 1 herein was used propylene glycol as solvent.
• water at a suitable pH could also maybe be used as a suitable solvent.
• Propylene glycol is liquid at room temperature - accordingly, if propylene glycol is used as a solvent one may directly get a liquid composition.
• an example of a herein suitable quillaja product is a to 20% in water diluted quillaja product - if such water containing quillaja product is used one may directly get a liquid composition.
• the method may comprise the further step of drying .
• the fourth aspect of the invention relates to a method a method for making a transparent green solid-in-water dispersion product of the second aspect, wherein the method comprises dispersing the water- dispersible composition of the first aspect into a water based product with a pH 1 to pH 8 to thereby obtain the transparent green solid-in-water dispersion product of the second aspect.
• this method may be seen as routine work for the skilled person and it may therefore not be described in great details herein.
• the fifth aspect of the invention relates to use of the water-dispersible composition as described herein to green coloring of an edible, a drinkable or a pharmaceutical product.
• compositions are used for coloring of a herein relevant edible or pharmaceutical product - the skilled person knows how to use it in relation to obtainment of specif- ic objectives (e.g. degree of coloring) of interest.
• the product is a food product or a beverage product - preferably for human use.
• Preferred examples of edible or drinkable product may be a soft drink or wine gum.
• the copper chlorophyllin was dissolved in the solvent propylene glycol - while stirring and heating to 60°C.
• Example 1 In the laboratory the product produced as described in Example 1 was tested as follows.
• the soft drink medium corresponds to a standard commercially available soft drink media.
• This example is a comparative example using polyglycerol ester as a dispersing agent.
• polyglycerol ester as a dispersing agent.
• the comparative polyglycerol containing composition was tested as in Example 2.

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• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Organic Chemistry (AREA)
• Health & Medical Sciences (AREA)
• Nutrition Science (AREA)
• Life Sciences & Earth Sciences (AREA)
• Engineering & Computer Science (AREA)
• Food Science & Technology (AREA)
• Polymers & Plastics (AREA)
• Dispersion Chemistry (AREA)
• Coloring Foods And Improving Nutritive Qualities (AREA)
• Non-Alcoholic Beverages (AREA)

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• 2013
  • 2013-05-08 EP EP13722387.1A patent/EP2846647A1/de not_active Withdrawn
  • 2013-05-08 AU AU2013258018A patent/AU2013258018B2/en active Active
  • 2013-05-08 WO PCT/EP2013/059563 patent/WO2013167644A1/en active Application Filing

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