Development of a Rapid and Simple Method for Detection of Protein Contaminants in Carmine

<div>Carmine (Sample A, cochineal extract, Biocon) suspensions. (A) is suspended in 1% phosphoric acid. (B) is dispersed in 1% phosphoric acid and 8 mol/L urea. (C) is dispersed in 1% phosphoric acid and 6 mol/L guanidine hydrochloride.</div>

International Journal of Analytical Chemistry

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Figure 2

Figure 2: Development of a Rapid and Simple Method for Detection of Protein Contaminants in Carmine 