Figures 2(a) and 2(b) show absorption spectra of the biosynthesis of silver nanoparticles (AgNPs) from the cochineal extract
, and the difference of the two spectra is the volume of cochineal.
This spring, Starbucks, the Seattle based-coffee giant, made headlines over the company's use of cochineal extract
as a colorant in four food and two beverage offerings in the U.S.
Although substances like castoreum and cochineal extract
may be long on the "yuck factor," (4) research has shown them to be perfectly safe for most people; strident opposition arose not from safety issues but from the ingredients' origins.
As of this past January, manufacturers must state the dye on their products' ingredient lists as "cochineal extract
" or "carmine." "Now consumers who are allergic [to the dye] will have an easier time picking out their foods," says Sebastian Cianci of the FDA.
While eating cochineal extract
poses no risk to healthy consumers, the term "insect" does not exactly sound appetizing on a label.
In January 2009, the Food and Drug Administration (FDA) announced that all foods and cosmetics containing cochineal extract
or carmine must contain a "prominent and conspicuous" declaration of these ingredients by name at least once on the item label.
The move was prompted by reports of severe allergic reactions to cochineal extract
and carmine-containing foods and cosmetics.
Cochineal is sometimes used in the food industry primarily as a dye, listed as "colour added," "E120," or simply "natural colour." Foods such as yogurt, imitation crab, juices, and Campari made in some countries contain cochineal extract
They're also talking about natural additives such as annatto extract, carrot oil, turmeric, vegetable juices and the controversial cochineal extract
, whose characteristic rosy hue is derived from the eggs of the Peruvian cochineal beetle.
FDA may require clearer labeling of food additives: Food & Drug Administration is now in the process of considering a proposal to require color additives like the cochineal extract
to be disclosed on the labels of all foods that use them.
and carmine products arc very versatile natural red colors and can yield orange to red to purple shades across the pH range of most food products (2.5 to 7.5).
is a coloring made from the dried and pulverized bodies of insects.