Indigo dye production by enzymatic mimicking based on an iron(III)porphyrin

• Type: Article in International Scientific Journal
• Date: 2014

Authors

Susana L H Rebelo (Author) Other; Margarida Linhares (Author) Other; Mario M Q Simoes (Author) Other; Artur M S Silva (Author) Other; Graca G P M S Neves (Author) Other; Jose A S Cavaleiro (Author) Other; Cristina Freire (Author) FCUP

Journal

Title: Journal of Catalysis

Vol. 315

Pages: 33-40

ISSN: 0021-9517

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 7 Citations

Scopus - 3 Citations

Scientific classification

FOS: Engineering and technology > Chemical engineering

Other information

Authenticus ID: P-009-DX5

DOI: 10.1016/j.jcat.2014.04.012

Abstract (EN): A novel indigo synthesis is based on a simple and cost-effective model system of the enzymes involved in the natural and biocatalytic productions. The method considers the oxidation of indole by hydrogen peroxide, being catalyzed by an iron(III)porphyrin in ethanol, as solvent, and no other additives. The yields of indigo and of the other oxidized indolinoid derivatives were found to be dependent on the metalloporphyrin system used and on the control of the oxidation conditions. Significant reductions of the environmental impact relatively to the present industrial production and of the costs relatively to the biocatalytic methodologies were obtained. The enhanced indigo production in the presence of the iron(III)porphyrin-ethanol catalytic system relatively to the manganese(III)porphyrin-acetonitrile system can be rationalized by the formation of different active species in the two systems.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8