fast green FCF


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fast green FCF

(fast grēn), [C.I. 42053]
An acid arylmethane dye widely used in histology and cytology and less subject to fading than light green FCF that it has replaced in many procedures; used as a quantitative cytochemical stain for histones at alkaline pH after acid extraction of DNA, and also in electrophoresis as a protein stain.
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The committee agreed to move allura red AC (300 mg/kg); caramel color, class IV (20,000 mg/kg); carotenoids (300 mg/kg); chlorophylls, copper complexes (500 mg/kg); erythrosine (300 mg/kg); fast green FCF (600 mg/kg); grape skin extracts (500 mg/kg); in-digotine (300 mg/kg); and iron oxides (7500 mg/kg) forward for the Codex General Standard for Food Additives (GSFA), which sets conditions for permitted food additives to be used in all foods.

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