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Introduction
- Carmine is
a natural dye (cochineal dye).
- This
natural colorant "Carmine" is the purified form of a colorant
known as cochineal.
- Carmine is
a pigment of a bright red color obtained from the carminic acid
produced by some scale insects, such as the cochineal and the
Polish cochineal, and is used as a general term for a
particularly deep red color.
- Carmine is
used together with a mordant solution of lithium, aluminium or
boron as a lake for staining.
Production
-
Carmine may be prepared from cochineal, by boiling dried
insects in water to extract the carminic acid and then
treating the clear solution with alum, cream of tartar,
stannous chloride, or potassium hydrogen oxalate; the
coloring and animal matters present in the liquid are thus
precipitated.
- The
quality of carmine is affected by the temperature and the
degree of illumination during its preparation, sunlight
being requisite for the production of a brilliant hue.
- The
dried cochineal, which contains 17 to 24 percent carminic
acid, is subjected to a carefully controlled extraction
process in an acidic, aqueous, alcoholic solution.
Market
- Today
cochineal has been surpassed as a dye for cloth by a number
of synthetic pigments, but is still widely used as a
coloring agent for a number of foodstuffs , beverages, and
cosmetics (because many of those synthetic dyes proved
dangerous to humans when taken internally or allowed to
leach into the body through the skin).
- The
present day market price of cochineal is between 50 and 80
dollars per kilo and its demand is growing because of
increasing evidence that artificial colorings can be
hazardous.
Uses
-
Carmine is used in the manufacture of artificial flowers,
paints, rouge, yogurt, cosmetics, food additives, and
crimson ink.
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Carmine is used as a food dye in many different products
such as juice, ice cream, yogurt, and candies, eyeshadow,
lipstick, etc.
-
Carmine is a dye used mainly for coloring food products and
galenicals but also in inks.
-
Carmine is used for various stainings, e.g. for
demonstration of glycogen and mucous substances (Best’s
carmine), for nuclear staining after silver impregnation or
for vital staining.
Entrepreneur who want the information such as " Growing,
Preservation, Harvesting, Storage, Trade, Reports, Market
Details "
about Cut Flowers can
Email as to
informer@eth.net,
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Primary Information Services
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Cochineal,
Extraction, Carminic Acid, Allergic Problems, Cactus, Market
