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Amaranth Dye (0):
Recent article
Amaranth Dye
Energy generation coupled to azoreduction by membranous vesicles from Shewanella decolorationis S12.
Abstract
Previous studies have demonstrated that Shewanella decolorationis S12 can grow on the azo compound amaranth as the sole electron acceptor. Thus, to explore the mechanism of energy generation in this metabolism, membranous vesicles (MVs) were prepared and the mechanism of energy generation investigat...
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PMID: 19190406
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PDF is available here.
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Abstract
This communication reports the formation and characterization of self-assembled films of a low molecular weight anionic dye amaranth and polycation poly(allylamine hydrochloride) (PAH) by electrostatic alternating layer-by-layer (LBL) adsorption. It was observed that there was almost no material los...
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PMID: 17905646
PDF is available here.
PDF is available here.
Abstract
Labeling experiments using NeuroVue Red dye allowed us to demonstrate individual afferent fiber tracks in the cochlea from the synaptic region of the inner hair cell in the organ of Corti (OC) to the spiral ganglion in Rosenthal's canal. Further optimization is necessary to obtain 3-dimensional (3D)...
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PMID: 18340556
PDF is available here.
PDF is available here.
Acta Pharmaceutica (57)3 2007
Abstract
An asymmetric membrane capsule of cellulose acetate for osmotic delivery of flurbiprofen has been developed and influence of osmogents and solubilizing agent on in vitro drug release were evaluated. The capsule membrane was prepared by the phase inversion technique. To ensure the osmotic delivery of...
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PMID: 17878113
PDF is available here.
PDF is available here.
Abstract
Reduction and biodegradation mechanisms of naphthylaminesulfonic azo dye amaranth using a newly isolated Shewanella decolorationis strain S12 were investigated. Under anaerobic conditions, amaranth was reduced by strain S12, and a stoichiometric amount of two reduction products RP-1 and RP-2 were ge...
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PMID: 17260140
PDF is available here.
PDF is available here.
Abstract
These results confirm the results of a previous statistical analysis. Furthermore, the fungal mycelium affects the performance of the decoloration process....
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PMID: 17496982
PDF is available here.
PDF is available here.
Abstract
The white-rot fungus Trametes versicolor decolorized the mono-azo-substituted naphthalenic dye Amaranth. The relationship between the amount of enzymes present in the system and the efficiency of the decoloration process was investigated. The two responses used to quantify the process of decoloratio...
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PMID: 17496981
PDF is available here.
PDF is available here.
Abstract
Trametes versicolor decolorized 2000 mg L(-1) of the mono-azo substituted naphthalenic dye Amaranth with no dye sorption observed visually. The changes in the toxicity were assessed over a period of 30 d for the dye-treated viable culture, control (no dye added), and a boiled culture treated with dy...
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PMID: 17940258
PDF is available here.
PDF is available here.
Abstract
These results provide evidence that the microbial anaerobic azoreduction is linked to the electron transport chain and suggest that the dissimilatory azoreduction is a form of microbial anaerobic respiration. These findings not only expand the number of potential electron acceptors known for microbi...
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PMID: 17085710
PDF is available here.
PDF is available here.
Abstract
We present results of the in vivo effects of haemolymph coagulation and its consequences on the spatial disposition of immune activity, in the American cockroach Periplaneta americana. Our results demonstrate that clotting: (1) localises immune effectors in the vicinity of a breach of the cuticle; (...
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PMID: 17056113
PDF is available here.
PDF is available here.
Abstract
The degradation of Amaranth, a kind of azo dye, has been studied under galvanostatic model with activated carbon fiber (ACF) electrode in aqueous solution with electrochemical method. The ACF was used as anode and cathode, respectively for the decolorization process. The onset oxidation potential an...
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PMID: 16713086
PDF is available here.
PDF is available here.
Abstract
Vaccinium myrtillus or bilberry fruit is a commonly used herbal product. The usual method of determining the anthocyanin content is a single-wavelength spectrophotometric assay. Using this method, anthocyanin levels of two extracts were found to be 25% as claimed by the manufacturers. When high-perf...
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PMID: 16968108
PDF is available here.
PDF is available here.
Abstract
Our data indicate that the fastest decoloration should occur in the RBC using nitrogen-free Kirk's medium with 1 g/l glucose in sequential batch operation at rotational speeds and/or aeration rates which maintain oxygen saturation in the liquid phase....
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PMID: 16607512
PDF is available here.
PDF is available here.
Abstract
We study in a drug delivery context. The sterilization of spherulites suspensions is a necessary step before biological tests and later, before pharmaceutical applications (for example, parenteral or local injections). Among all sterilizing operations, the filtration through 0.22 microm sterilizing-...
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PMID: 16480839
PDF is available here.
PDF is available here.
Toxicology Letters (160)3 2006
Abstract
Administration of the non-metabolizable organic anion indocyanine green (ICG) prior to a toxic dose of acetaminophen (4-acetamidophenol; APAP) reduces liver injury 24h after dosing. ICG also produces a dose-dependent decrease in bile flow in mice and rats. Studies in bile duct-cannulated rats sugges...
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PMID: 16140478
PDF is available here.
PDF is available here.
Journal of Hazardous Materials (127)1-3 2005
Abstract
Semiconductor-mediated photocatalysed degradation of two selected azo dye derivatives such as amaranth (1) and bismarck brown (2) has been investigated in aqueous suspension by monitoring the change in substrate concentration employing UV spectroscopic analysis technique as a function of irradiation...
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PMID: 16095814
PDF is available here.
PDF is available here.
Abstract
Suitable liquid chromatography/mass spetrometry (LC/MS) conditions were examined for Amaranth, Red 2G (R2G), Azo Rubine (Azo), Fast Red E (FRE) and Brilliant Blue FCF, which were detected in Akasu, a red vinegar made in Hong Kong from sake lees, on both thin layer chromatography (TLC) and photodiode...
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PMID: 16305179
PDF is available here.
PDF is available here.
Abstract
I and II drug-metabolizing enzymes and excreted by transporters of phase III enzymes. However, there is little information regarding the metabolism of these dyes. It was investigated whether these dyes are substrates for CYP2A6 and UDP-glucuronosyltransferase (UGT). The in vitro inhibition of drug-m...
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PMID: 16009655
PDF is available here.
PDF is available here.
Journal of Hazardous Materials (117)2-3 2005
Abstract
Bottom Ash, a power plan t waste material and De-Oiled Soya, an agriculture waste product were successfully utilized in removing trisodium 2-hydroxy-1-(4-sulphonato-1-naphthylazo)naphthalene-3,6-disulphonate--a water-soluble hazardous azo dye (Amaranth). The paper incorporates thermodynamic and kine...
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PMID: 15693180
PDF is available here.
PDF is available here.
Abstract
Square-wave adsorptive stripping voltammetric (AdSV) determinations of trace concentrations of the azo coloring agent Amaranth are described. The analytical methodology used was based on the adsorptive preconcentration of the dye on the hanging mercury drop electrode, followed by initiation of a neg...
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PMID: 16001853
PDF is available here.
PDF is available here.
Annali di Chimica (95)1-2 2005
Abstract
A novel kinetic spectrophotometric method is described for the determination of rutin. The method is based on the inhibitory effect of rutin on the oxidation reaction of amaranth by potassium periodate in acidic media at 100 degrees C. The linear range for the determination of rutin is 0.02 - 0.50 m...
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PMID: 15801180
PDF is available here.
PDF is available here.
Abstract
The ability of Trametes versicolor ATCC 20869 to colonize several natural and synthetic materials (wheat straw, jute, hemp, maple woodchips, and nylon and polyethylene teraphthalate fibers) and to subsequently decolorize amaranth was evaluated. Jute was found to be the best support material as T. ve...
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PMID: 12382067
PDF is available here.
PDF is available here.
Abstract
The aim was to devise a method for the measurement of total surface area and weight, as well as saliva weight, for a gelatin-based confectionery gel over the course of human mastication for input into separate modelling of flavour release. The method is based on an alcohol rinse to remove saliva, fo...
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PMID: 11951588
PDF is available here.
PDF is available here.
Abstract
The purpose of this study was to investigate the influence of the composition of in-vitro azo-reducing systems on the degradation kinetics of the model compound amaranth. The degradation kinetics of amaranth were determined under anaerobic conditions both in rat caecal content (ex-vivo) and in a var...
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PMID: 11848283
PDF is available here.
PDF is available here.
Journal of Chromatography A (923)1-2 2001
Abstract
These results demonstrate that anion-exchange displacement chromatography can indeed be employed for large-scale oligonucleotide separations at high column loading....
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PMID: 11510561
PDF is available here.
PDF is available here.
Toxicological Sciences (61)1 2001
Abstract
We determined the genotoxicity of synthetic red tar dyes currently used as food color additives in many countries, including JAPAN: For the preliminary assessment, we treated groups of 4 pregnant mice (gestational day 11) once orally at the limit dose (2000 mg/kg) of amaranth (food red No. 2), allur...
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PMID: 11294979
PDF is available here.
PDF is available here.
Abstract
The most abundant alpha-amylase inhibitor (AAI) present in the seeds of Amaranthus hypochondriacus, a variety of the Mexican crop plant amaranth, is the smallest polypeptide (32 residues) known to inhibit alpha-amylase activity of insect larvae while leaving that of mammals unaffected. In solution,...
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PMID: 11298757
PDF is available here.
PDF is available here.
Abstract
Azopolymers were synthesised with differing degrees of hydrophobicity, from 2-hydroxyethylmethacrylate (HEMA), styrene and 2,2'-dimethylacryloyloxyazobenzene as azo crosslinker. Bacterial degradation of the series of polymers was assessed using a pure culture of the colonic organism Enterococcus fae...
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PMID: 10722952
PDF is available here.
PDF is available here.
Voprosy pitaniya (69)1-2 2000
Abstract
On an example of definition of the forbidden red dye amaranth E123 in a mix with other red food dyes (azorubin E122 and ponso 4R E124) the method of quantitative processing think level chromatograms was developed. The method includes transfer of chromatogram in a digital kind by scanning and process...
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PMID: 10943012
PDF is available here.
PDF is available here.
Abstract
In this paper the influence of the amaranth seed meal and the aeration conditions on the alpha-amylase production by Aspergillus niger NRRL 3112 were studied. The assays of selection of culture medium were carried out in a rotary shaker at 250 rpm and 2.5 cm stroke. The aeration conditions were stud...
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PMID: 11149149
PDF is available here.
PDF is available here.
Abstract
Major subsidiary colors A (Sub A) and B (Sub B) in commercial Food Red No. 102, and colors C (Sub C) and D (Sub D) in commercial Food Red No.2 were isolated. These structures were characterized by physicochemical evidence. The structures of Sub A, B, and C are trisodium salt of 7-hydroxy-8-(6-sulfon...
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PMID: 9549891
PDF is available here.
PDF is available here.
Abstract
Major subsidiary colors A (Sub A) and B (Sub B) in commercial Food Red No. 102, and colors C (Sub C) and D (Sub D) in commercial Food Red No.2 were isolated. These structures were characterized by physicochemical evidence. The structures of Sub A, B, and C are trisodium salt of 7-hyd...
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PMID: 9549891
PDF is available here.
PDF is available here.
Abstract
We describe a sensitive and reproducible microassay model using human peripheral blood lymphocytes (PBL) for discrimination between the cytotoxic and immunosuppressive effects of food colorants such as amaranth and tartrazine. The cytotoxic effects of a wide range of concentrations of these substanc...
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PMID: 9467198
PDF is available here.
PDF is available here.
Abstract
The anaerobic reduction of azo dyes by Sphingomonas sp. strain BN6 was analyzed. Aerobic conversion of 2-naphthalenesulfonate (2NS) by cells of strain BN6 stimulated the subsequent anaerobic reduction of the sulfonated azo dye amaranth at least 10-fold. In contrast, in crude extracts, the azo reduct...
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PMID: 9293019
PDF is available here.
PDF is available here.
Abstract
The object of this work was to present some results from the evaluation of microbiological (total bacterial count, coliform bacteria, aerobic sporogenic bacteria, yeasts and moulds), nutritional (lysine) and sensory (shape, surface, colour, consistency, odour, taste, the profiling of tastiness) qual...
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PMID: 9232851
PDF is available here.
PDF is available here.
Abstract
We examined the influence of BWPE on amaranth toxicity in rats. The results show that BWPE-containing diet suppressed the growth depression induced by the dietary addition of 5% amaranth....
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PMID: 8987611
PDF is available here.
PDF is available here.
Food and Chemical Toxicology (33)11 1995
Abstract
Two red dyes, rhodamine B and amaranth, were tested for their genotoxic effects in the somatic (wing primordia) and germ line cells of Drosophila melanogaster following the wing spot and the sex-linked recessive lethal tests. Second- and third-instar larvae, carrying suitable genetic markers, were s...
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PMID: 7590539
PDF is available here.
PDF is available here.
Abstract
These results indicate that the definition for specific embryotoxicity used, as well as the culture duration and embryonic age are crucial for concordant scoring. Other methodologic differences did not significantly influence scoring of embryotoxicity. Therefore, within the limits of the end points...
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PMID: 7579912
PDF is available here.
PDF is available here.
Journal of Chromatography A (680)2 1994
Abstract
A method for the determination of synthetic tar dyes used as food additives using capillary electrophoresis with photodiode-array detection was investigated. The dyes Erythrosine (R-3), Phloxine (R-104), Rose Bengal (R-105), Acid Red (R-106), Amaranth (R-2), New Coccine (R-102) and Allura Red AC (R-...
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PMID: 7981834
PDF is available here.
PDF is available here.
Abstract
Glycinebetaine and N-modified betaines have been previously shown to be effective at reducing leakage from liposomes on freeze-thaw procedures. This study involved the preparation of a series of other modified betaines and the comparison of their abilities to reduce leakage from frozen multilamellar...
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PMID: 7837037
PDF is available here.
PDF is available here.
Abstract
The color additive amaranth was given in the drinking water at levels of 0 (control), 0.025, 0.075, and 0.225% from 5 weeks of age in F0 generation until F1 generation mice were weaned, with selected reproductive, developmental and behavioral parameters being measured. Amaranth had little adverse ef...
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PMID: 8191501
PDF is available here.
PDF is available here.
Abstract
Glycinebetaine has previously been shown to be effective at reducing leakage from liposomes which are frozen then thawed. This study involved the preparation of a series of N-modified betaines and the comparison of their cryoprotective activities with those of glycine, sarcosine, N,N-dimethylglycine...
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PMID: 1279156
PDF is available here.
PDF is available here.
Toxicology Letters (60)3 1992
Abstract
The color additive, amaranth, was given in the diet to provide dietary levels of 0 (control), 0.03, 0.09 and 0.27%, from 5 weeks of age in F0 generation mice to 9 weeks of age in F1 generation mice, and some reproductive, developmental and behavioral parameters were measured. There was no effect on...
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PMID: 1595090
PDF is available here.
PDF is available here.
Abstract
Materiae Vegetabiles (42)1 1992
Abstract
The properties of ishikurage (Nostoc commune) and other algae were compared. Ishikurage and suizenji nori (Aphanothece sacrum) absorbed much more amaranth than others. They have a high settling volume (SV) in water. The high SV of ishikurage is attributable to its neutral detergent fiber (NDF). The...
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PMID: 1312238
PDF is available here.
PDF is available here.
Abstract
These results suggest that feeding Am can reduce neither jejunal sucrase nor digestion-absorption capacity of epithelial cells of the jejunum, but retards the regain of the lowered sucrase level at earlier stage of feeding when rats have been fasted before the feeding, and that concurrent feeding of...
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PMID: 1668101
PDF is available here.
PDF is available here.
British Dental Journal (171)7 1991
Abstract
Abstract
We confirmed that NADPH-dependent anaerobic amaranch reduction in rat liver microsomes is compatible with the interaction of the dye with Fe(III) heme of cytochrome P-450 as the type II substrate. This process is rate-limiting in the whole reaction. High positive correlation (r = 0.949) between the...
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PMID: 1654904
PDF is available here.
PDF is available here.
Abstract
Dental enamel pitting as a diagnostic sign of tuberous sclerosis is explored, and a protocol for the oral examination of patients and persons at risk is described. In this study 50 patients with tuberous sclerosis and 250 control patients were examined for dental enamel pitting. A simple clinical pr...
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PMID: 1994325
PDF is available here.
PDF is available here.
Mikrobiyoloji bulteni (24)1 1990
Abstract
The mutagenicity of 4 azo dyes (Ponceau 4R, Amaranth, Sunset Yellow FCF and Tartrazine) that are widely used to color food has been evaluated. They were tested for mutagenicity in the Salmonella typhimurium plate-incorporation and preincubation assays. The standard plate-incorporation and preincubat...
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PMID: 2283964
PDF is available here.
PDF is available here.
Abstract
We performed an objective evaluation of 39 children whose behaviour was observed by their parents to improve on an artificial food additive free diet and to deteriorate with dietary lapses. Only 19 children completed a double blind placebo controlled challenge study with artificial food colours. In...
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PMID: 2301986
PDF is available here.
PDF is available here.
Abstract
The developmental toxicity of five compounds was evaluated with the Frog Embryo Teratogenesis Assay: Xenopus (FETAX). Late Xenopus laevis blastulae were exposed to 5-azacytidine, methotrexate, pseudoephedrine, aspartame, and amaranth for 96 h. Three separate static-renewal assays were conducted for...
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PMID: 1703942
PDF is available here.
PDF is available here.
Gamete Research (22)3 1989
Abstract
Use of the dye amaranth (Color Index 16185) as a supravital stain for ram sperm is described. At a concentration of 0.4% in diluted semen, the dye was completely excluded by motile sperm and had no effect on sperm motility. The nuclei of immotile sperm were stained pink by amaranth. The decrease in...
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PMID: 2468592
PDF is available here.
PDF is available here.
Abstract
Molecular Pharmacology (34)4 1988
Abstract
The mechanism of the azo reduction of sulfonazo III and amaranth by the rat hepatic monooxygenase system was studied. Air strongly inhibited (greater than 95%) the enzymatic reduction of both azo compounds; a 100% CO atmosphere inhibited amaranth reduction (greater than 90%) but only slightly inhibi...
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PMID: 2845254
PDF is available here.
PDF is available here.
Food and Chemical Toxicology (25)12 1987
Abstract
Groups of 90 (control) and 54 (treated) rats of each sex were given amaranth in their diet to provide daily intakes of 0 (control), 50, 250 or 1250 mg/kg for 111 wk (male) and 112 wk (female) after weaning. The rats had also been exposed to the same dose levels in utero, and their parents were expos...
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PMID: 3692401
PDF is available here.
PDF is available here.
Food and Chemical Toxicology (25)12 1987
Abstract
The absorption, metabolism and excretion of orally administered 14C-labelled amaranth has been studied in the rat, mouse and guinea-pig. Following administration of a single oral dose of either 2 or 200 mg/kg, most of the radioactivity was excreted in the urine and faeces in the first 24 hr, and sub...
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PMID: 3692402
PDF is available here.
PDF is available here.
Abstract
These results indicate that changes in the bile salt independent fraction might be responsible for the effects of estrone on the biliary flow and biliary excretion of xenobiotics....
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PMID: 3432162
PDF is available here.
PDF is available here.
Abstract
The legislative application of regulatory toxicology in Canada is reviewed, together with the sources of experimental evidence used for action. Examples are given of the critical toxicological information that led to a regulatory decision. Risk numbers have only been used to a limited extent in Cana...
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PMID: 3809617
PDF is available here.
PDF is available here.
Abstract
Little definitive data are available concerning the effects of insulin deficiency on the hepatic uptake and biliary excretion of endogenous or xenobiotic substances. To expand our understanding of this area, male Sprague-Dawley rats were pretreated with streptozotocin (45 mg/kg i.v.) to induce uncon...
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PMID: 2430094
PDF is available here.
PDF is available here.