Brilliant green

About: Brilliant green is a research topic. Over the lifetime, 627 publications have been published within this topic receiving 12495 citations.

The Performance of Different AgTiO2 Loading into Poly(3-Nitrothiophene) for Efficient Adsorption of Hazardous Brilliant Green and Crystal Violet Dyes

Abstract: The in-situ polymerization technology was used to successfully produce nanostructured binary nanocomposites (NCs) made from a poly (3-nitrothiophen) matrix (P3NT) that were loaded effectively with nanoparticles (NPs) of silver titanium dioxide (AgTiO2), of varying percentages (10%, 20%, and 30%). A uniform coating of P3NT covers the AgTiO2 NPs. Various methods were performed to confirm the fabrication of the binary P3NT/AgTiO2 NCs adsorbents, such as FTIR, XRD, SEM, and EDX. Both dyes (brilliant green (B.G.) and crystal violet (C.V.)) were removed from liquid media by using the binary P3NT/AgTiO2 NCs. A range of batch adsorption studies was used to optimize various factors that impact the elimination of B.G. or C.V. dyes, including the pH, weight of the binary P3NT/AgTiO2 NC, proportion of AgTiO2 NP, time, and temperature. The pseudo-second-order kinetics ( R 2 = 0.999 ) was better adapted for the adsorption procedure’s empirical data whereby the maximum adsorption capacity of the C.V. dye was 43.10 mg/g and ( R 2 = 0.996 ) the maximum adsorption potential was 40.16 mg/g for B.G. dye, succeeded by the pseudo-second-order kinetics. Moreover, the adhesion of B.G. and C.V. pigments on the layers of NCs involves an endothermic reaction. In addition, the concocted adsorbent not only exhibited strong adsorption characteristics during four consecutive cycles but also possessed a higher potential for its reuse. According to the findings, the NCs might possibly be used as a robust and reusable adsorbent to remove B.G. and C.V. pigments from an aqueous medium.

Effect of cosubstrates on primary biodegradation of triphenylmethane dyes by Pseudomonas sp.

Abstract: The effect of substrates (glucose, starch, lactose and sucrose) on primary biodegradation (decolourisation) of recalcitrant triphenylmethane dyes Brilliant green and Crystal violet) by Pseudomonas sp was investigated. Biodegradation was enhanced in cultures with substrate supplementation. Glucose and starch were the best among the substrates tested. The percentage decolourisation increased with increasing concentration up to maximum of 0.2mgL-1 for glucose and 0.3mgL-1 for starch. The percentage with glucose was 93.30 ± 1.40% for Brilliant green and 90.20± 0.75% for Crystal violet. With 0.30 mgL-1 of starch the percentage decolourisation was 85.30± 0.180% for Brilliant green and 88.50± 0.90% for Crystal violet. Enhanced biodegradation was attributed to generation of redox equivalent (electron donors) as a result of metabolism of glucose and starch as cosubstrates. Decrease in percentage decolorisation at concentration above the maximum for glucose and starch was attributed to saturation of the binding; sites for redox equivalents to the chromophoric group (of quinone) of the dyes and/or metabolite repression of the peroxidase enzyme that catalyses the reductive cleavage of the chromophoric group. Cassava peeling (an agricultural waste) gave values of percentage decolourisation of 63± 0.8% for Brilliant green and 67.70± 0.60% for Crystal violet. The potential of agricultural wastes to enhance primary biodegradation of recalcitrant synthetic dyes is also revealed in this work. Keywords : Pseudomonas sp., Triphenylmethane dyes, primary biodegradation, cosubstrates AJAZEB Vol. 7 2005: pp. 38-44

Test Strip For The Rapid Identification of Sulfite on Foods

Abstract: A rapid, sensitive, test strip has been developed for those people allergic to sulfite on foods. The strip is composed of a mixture of orange I, brilliant green, and sodium hydrogen carbonate deposited on 80-120 mesh alumina. Within 15 seconds the black strip turns red in the presence of as little as 0.5 ug of sulfite or green in the absence of sulfite.