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Cochineal use in histology: Carmine staining of a monogenean (parasitic worm) Cochineal continues to be used as a fabric dye, a cosmetics dye and as a food coloring. [4] It is also used in histology as a preparatory stain for the examination of tissues and carbohydrates. [49]
Polish cochineal (Porphyrophora polonica, Margarodes polonicus), also known as Polish carmine scales (Polish: czerwiec polski), is a scale insect formerly used to produce a crimson dye of the same name, colloquially known as "Saint John's blood". The larvae of P. polonica are sessile parasites living on the roots of various herbs – especially ...
Dactylopius is a genus of insect in the superfamily Coccoidea, the scale insects. It is the only genus in the family Dactylopiidae. [1] These insects are known commonly as cochineals, [2][3] a name that also specifically refers to the best-known species, the cochineal (Dactylopius coccus). The cochineal is an insect of economic and historical ...
Scale insects are small insects of the order Hemiptera, suborder Sternorrhyncha. Of dramatically variable appearance and extreme sexual dimorphism, they comprise the infraorder Coccomorpha which is considered a more convenient grouping than the superfamily Coccoidea due to taxonomic uncertainties. Adult females typically have soft bodies and no ...
Carmine (/ ˈkɑːrmən, ˈkɑːrmaɪn /) – also called cochineal (when it is extracted from the cochineal insect), cochineal extract, crimson lake, or carmine lake – is a pigment of a bright- red color obtained from the aluminium complex derived from carminic acid. [1] Specific code names for the pigment include natural red 4, C.I. 75470 ...
Woodlouse. Woodlice are terrestrial isopods in the suborder Oniscidea. Their name is derived from being often found in old wood, [2] and from louse, a parasitic insect, [3] although woodlice are neither parasitic nor insects. Woodlice evolved from marine isopods which are presumed to have colonised land in the Carboniferous, though the oldest ...
A new strain of the cochineal was introduced from Opuntia stricta collected in Australia in 1997 with encouraging results. The genotype of Dactylopius opuntiae which effectively controlled Opuntia stricta in South Africa was also introduced in Kenya, resulting in the reduction in flowering and fruiting, and leading to the death of the plants.
Carminic acid (C 22 H 20 O 13) is a red glucosidal hydroxyanthrapurin that occurs naturally in some scale insects, such as the cochineal, Armenian cochineal, and Polish cochineal. The insects produce the acid as a deterrent to predators. [3] An aluminum salt of carminic acid is the coloring agent in carmine, a pigment. [4]