Showing papers on "Tartrazine published in 1993"
26 citations
TL;DR: 53 samples of FD & C Yellow No. 5 (tartrazine; Colour Index No. 19140) were examined for combined benzidine and the total benzidine present was quantitated as benzidine-pyrazolone T disazo dye (BZPT) by HPLC with detection at 500 nm.
13 citations
TL;DR: This case study illustrates the effectiveness of dietary advice in a young boy with chronic idiopathic urticaria, when an azo dye and preservative-free diet was initially advised, resulting in a total improvement in urticarial symptoms.
Abstract: This case study illustrates the effectiveness of dietary advice in a young boy with chronic idiopathic urticaria. An azo dye and preservative-free diet was initially advised, resulting in a total improvement in urticarial symptoms. Double-blind challenges confirmed the boy was intolerant to E127 (erythrosine), E122 (carmoisine), 128 (red 2G), and E102 (tartrazine) but not to E211 (sodium benzoate).
1 citations
TL;DR: In this article, a polarographic method was developed for the determination of sulphanilic acid in the presence of tartrazine, using a masking agent, gelatin, to suppress the polarographic peak of the colouring matter.
1 citations
TL;DR: In this article, the potential for ion-pairing between dyclonine, a local anesthetic, and pharmaceutical dyes commonly used in liquid pharmaceutical formulations was examined and confirmed by shift of the absorption maximum of all five sulfonate-containing dyes, and by measurements of octanol/water partition coefficient and surface tension.
Abstract: This potential for ion-pairing between dyclonine, a local anesthetic, and pharmaceutical dyes commonly used in liquid pharmaceutical formulations was examined. Occurrence of ion-pairing at a pH of 3 was confirmed by shift of the absorption maximum of all five sulfonate-containing dyes, and by measurements of octanol/water partition coefficient and surface tension. There was also an increase in the uptake of dyclonine by phosphatidylcholine liposomes in the presence of a dye (tartrazine) at pH 3 but not at pH 7, where the uncharged anesthetic is dominant.
1 citations
TL;DR: In this paper, the effect of various preservatives, sugar, ascorbic acid and light on the stability of sunset yellow and tartrazine was studied, and the effect was considerably higher in the presence of light.
Abstract: Effect of various preservatives, sugar, ascorbic acid and light on the stability of sunset yellow and tartrazine was studied. While sulphur dioxide enhanced the rate of degradation of sunset yellow, it stabilized tartrazine in aqueous model systems. At 30 and 45% sugar levels, the rate of degradation of both sunset yellow and tartrazine was practically same in the presence of benzoic acid and sorbic acid. At 15% sugar level, the rate of degradation of tartrazine was slightly higher in the presence of sorbic acid. Incorporation of ascorbic acid enhanced the degradation of both sunset yellow and tartrazine and its effect was considerably higher in the presence of light. Increase in sugar concentration enhanced the stability of both the dyes, but light enhanced their degradation.