Water-dispersible coloring composition
A technology of composition and dispersibility, applied in the direction of food ingredients as color, food science, food ingredients, etc., can solve the problems of macroscopic inhomogeneity of the solution, inability to function properly, etc.
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[0092] With regard to the above embodiments, it is preferred that:
[0093] - the composition comprises at least 12% (w / w) beta-carotene, more preferably at least 14% (w / w) beta-carotene, and even more preferably at least 18% (w / w) beta -carotene;
[0094] - said solid particles have an average size of at most 4 μm, more preferably at most 2 μm, even more preferably at most 1.5 μm and most preferably at most 1.0 μm; and / or;
[0095] - polysorbate emulsifier: beta-carotene pigment ratio (weight / weight) in the range of 1:2 to 3:1, more preferably in the range of 1:2 to 2:1, and even more preferably in the range of 1 :2 to 1.5:1 range; and / or
[0096] - wherein the solid particles comprise beta-carotene crystals covered with polysorbate and said solid particles comprise less than 0.5% (preferably 0%) (weight / weight) of fat, oil or wax.
[0097] In a particularly preferred embodiment, the water-dispersible composition of the first aspect and embodiments described herein is a wa...
Embodiment 1
[0118] Example 1: Composition with beta-carotene and polysorbate
[0119] Composition of the milled suspension:
[0120]
[0121] ball milling:
[0122] The pigment suspension was ground in two steps on a LabStar ball mill (Netzsch, Germany).
[0123] The particle size of the ground β-carotene crystals was measured on a Malvern Mastersizer.
[0124] During the first grinding step, the mill was equipped with 450 ml beads (SiliBeads ZY, Sigmund Lindner GmbH, Germany) with a diameter in the range of 0.6-0.8 mm and a 0.2 mm slot in the mill.
[0125] Grinding is continued until all particles above 10 microns in diameter have disappeared.
[0126] The beads were then exchanged for 450 ml smaller beads (SiliBeadsZY, Sigmund Lindner GmbH, Germany) with a diameter in the range of 0.3-0.4 mm.
[0127] Grinding was continued until a particle size of 0.26 micron was obtained (d(4,3)).
[0128] After storage for 3 months at 4° C., an average particle size d(4,3) of 0.28 μm was mea...
Embodiment 2
[0133] Example 2: Composition with Crystalline Nopaletin and Polysorbate
[0134] Composition of the milled suspension:
[0135]
[0136]
[0137] ball milling:
[0138] The pigment suspension was ground in two steps on a LabStar ball mill (Netzsch, Germany).
[0139] The particle size of the ground annatto crystals was measured on a Malvern Mastersizer.
[0140] During the first grinding step, the mill was equipped with 450 ml beads (SiliBeads ZY, Sigmund Lindner GmbH, Germany) with a diameter in the range of 0.6-0.8 mm and a 0.2 mm slot in the mill.
[0141] Grinding was continued until a particle size of 0.73 micron was obtained (d(4,3)).
[0142] The beads were then exchanged with 450 ml smaller beads (SiliBeads ZY, Sigmund Lindner GmbH, Germany) with a diameter in the range of 0.3-0.4 mm and a 0.1 mm slit on the mill.
[0143] Grinding was continued until a particle size of 0.28 micron was obtained (d(4,3)).
[0144] After storage for 3 months at 4° C., an aver...
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