Carotenoid/curcumin/porphyrin

Carotenoid/ curcumin/porphyrin Water dispersion without using compositions surface-active substance... 

Stable dispersion of water-insoluble and/or hydrophobic natural pigment such as carotenoid, curcumin, porphyrin pigment, or vegetable carbon black in form of bodies of average size of 10 ram Addition of 0.5 ppm P-carotene to yogurt containing 200 ppm riboflavin color did not change after 40 days at 6°C compared with control (decoloration at 1 day)... 

The variety of colorants in stains is wide and many are complex, polymeric, and poorly defined. Classes of colorants arising from natural products include porphyrins (e.g., green chlorophyll in grass), carotenoids (e.g., orange carotene and red lycopene), anthocyanins (red, blue, color sensitive to pH), flavones and naphthoquinones (yellow), tannins (brown, e.g., in red wine and tea), humic acids (yellow, tea and coffee), and curcumins (yellow, curry and mustard). In addition, the stain may consist of synthetic molecules such as those used in food and cosmetic products. 

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See also in sourсe #XX -- [ ]

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