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Encyclopedia > Brown FK

Brown FK, also called Kipper Brown, Chocolate Brown FK, and C.I. Food Brown 1, is a brown mixture of six synthetic azo dyes, with addition of sodium chloride, and/or sodium sulphate. It is very soluble in water. Its CAS number is [8062-14-4] [1]. Sodium chloride, also known as common salt, table salt, or halite, is a chemical compound with the formula NaCl. ... Glaubers salt, also sal mirabilis, is the name of sodium sulfate decahydrate, Na2SO4•10H2O. It is named after Johann Glauber, who discovered it in the 17th century. ... CAS registry numbers are unique numerical identifiers for chemical compounds, polymers, biological sequences and alloys. ...


The dyes it contains are:

  • 4-(2,4-diaminophenylazo)benzenesulfonate, sodium salt
  • 4-(4,6-diamino-m-tolylazo)benzenesulfonate, sodium salt
  • 4,4'-(4,6-diamino-1,3-phenylenebisazo)-di(benzenesulfonate), disodium salt
  • 4,4'-(2,4-diamino-1,3-phenylenebisazo)-di(benzenesulfonate), disodium salt
  • 4,4'-(2,4-diamino-5-methyl-1,3-phenylenebisazo)-di(benzenesulfonate), disodium salt
  • 4,4',4-(2,4-diaminobenzene-1,3,5-trisazo)-tri(benzenesulfonate), trisodium salt

When used as a food dye, its E number is E154. It is used in smoked and cured mackerels and other fish, but also in some cooked hams and other meats, and crisps. It yields healthy color that does not fade during cooking, nor tends to leach. The color of food is considered important in its enjoyment. ... For the mathematical constant see: E (mathematical constant). ... Wikibooks Cookbook has more about this subject: Smoking Smoking is the process of curing, cooking, or seasoning food by exposing it for long periods of time to the smoke from a wood fire. ... In polymer chemistry and process engineering, curing refers to the toughening or hardening of a polymer material by cross-linking of polymer chains, brought about by chemical additives, ultraviolet radiation or heat. ... Mackerel is a common name applied to a number of different species of fish, mostly, but not exclusively, from the family Scombridae. ... The Guppy (Poecilia reticulata) is one of the most popular freshwater aquarium fish species in the world. ... Ham with cloves Technically, ham is the thigh and buttock of any animal that is slaughtered for meat, but the term is usually restricted to a cut of pork, the haunch of a pig or boar. ... The CRISP thesaurus maintained by the Office of Extramural Research at the National Institutes of Health is a public domain collection of lists with the terms used in biological and medical research. ...


It is one of the colourants that the Hyperactive Children's Support Group recommends be eliminated from the diet of children, especially when in combination with benzoates.[citation needed] It can provoke allergic reactions in people sensitive to salicylates, and can intensify the symptoms of asthma.[1] It is banned in the European Union (with exception of the United Kingdom), Australia, Austria, Canada, United States, Finland, Japan, Ireland, Sweden, Switzerland, New Zealand, and Norway.[2] The benzoate ion is C6H5COO− (benzoic acid minus one hydrogen ion). ... Pancreatitus can be caused by an Allergic Reaction to a food. ... Salicylic acid is a colorless, crystalline organic carboxylic acid. ...


References

  1. ^ http://www.food-info.net/uk/e/e154.htm
  2. ^ http://www.ukfoodguide.net/e154.htm

  Results from FactBites:
 
435. Brown FK (WHO Food Additives Series 12) (4161 words)
Oral administration of Brown FK to rats, pigs, rabbits and guinea-pigs results in the excretion of sulfanilic acid in urine and faeces; P is detectable in trace/small amounts in faeces, but is mainly present in caecal contents, predominantly during the first six hours after dosing.
When Brown FK was given in the diet at a level of 2%, fibrillolysis and an increase in the number and electron-density of lysosomes was observed ultrastructurally during week two to three of the test.
One sample of Brown FK was mutagenic in the absence of metabolic activation producing a 16-fold increase in mutation at 4 mg/plate.
600. Brown FK (WHO Food Additives Series 20) (5870 words)
BROWN FK EXPLANATION Brown FK is prepared by coupling diazotised sulfanilic acid with a mixture of m-phenylenediamine and tolylene-2,4-diamine.
Special studies on pigment deposition After feeding Brown FK to rats and mice, pigment was found in heart, skeletal muscle, tongue, diaphragm, thyroids, brain, liver, kidneys, spleen, lungs, pancreas, bladder, testes, ovary, uterus, skin, stomach, duodenum, ileum, brown fat, and bone marrow.
Rats fed Brown FK for over 2 years at a dose-level of 250 mg/kg b.w./day displayed substantial pigment deposition in the heart and liver, but no effects were seen in these organs at the lower dose-levels.
  More results at FactBites »


 
 

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