A sequential adsorption/photocatalytic regeneration process to remove tartrazine, an azo-dye in aqueous solution, has been investigated. The aim ofthis work was to compare the effectiveness of an adsorbent/photocatalyst composite-TiO2 deposited onto activated carbon (AC) - and a simple mixture of powders of TiO2 and AC in same proportion. The composite was an innovative material as the photocat...

Using routine histological procedures, it is difficult to distinguish osteoid from calcified bone and woven from lamellar bone in decalcified preparations of bone. Although several alternatives are available to overcome the first difficulty, differential staining of woven and lamellar bone has not been described. In 1958, Attwood modified Lendrum's (1947) phloxine-tartrazine stain to identify f...

The dispersion behavior of solutes was investigated in a rotating flowing coiled tube. Potassium iodide, tartrazine, ascorbic acid, lysozyme, bovine serum albumin (BSA), and silver nanoparticle (AgNPs) samples were eluted in a coiled tube of counter-current chromatography (CCC) apparatus with a single phase. Apparent convection peaks of low-diffusivity solutes appeared in the static CCC tube, w...

Food allergy is a clinical manifestation of an immunological process in which specific antibodies or sensitized T-lymphocytes interact with food constituents. The reaction may occur after ingestion of the particular food, after inhalation or by epicutaneous contact. A distinction must be made between food allergy, which is an immunological process, and other disorders provoked by foods. Adverse...

OBJECTIVE To determine if a causal connection exists between food additives and various medical complaints. DESIGN Literature study. METHOD Medline over the period January 1966-January 1999 was searched for articles on the following substances not containing protein and lactose: monosodium glutamate (MSG), sulfites, azo-dyes (tartrazine, sunset yellow, azorubin, amarant, cochineal red), ben...

In food industry there are used substances from azoic dyes such as carmoisine and tartrazine. Therefore we decided to verify by a histological study, the effect of these two dyes, administered in drinking water in concentrations of 1, 2 and 3% for 3 weeks, on liver and kidney in guinea pigs. At the end of the experiment animals were euthanized and pieces of liver and kidneys were collected and ...

Acetylsalicylic acid (ASA; 0.1-10 mg/kg), indomethacin (IND; 0.1-1.0 mg/kg), and tartrazine (TZ; 0.1-2.0 mg/kg), given intravenously induced dose-dependent increases in carotid-sinus nerve (CSN) activity, accompanied by increases in mean arterial blood pressure (MABP), but only the IND-induced MABP increases were dose-dependent. The MABP and CSN activity responses to all three drugs were not co...

OBJECTIVE The present study was carried out to evaluate the toxic effect of blend of some food colors on Swiss albino rats. MATERIALS AND METHODS A blend (1:1:1) of sunset yellow, metanil yellow and tartrazine showed additive effects on serological parameters which indicate that addition of these dye together in food stuff may give rise to more toxic effects than are produced by each dye indi...