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A study of the microbial degradation of metal phthalocyanine textile dyes by high-performance liquid chromatography and atomic absorption

Biomedical Sciences Research Institute Computer Science Research Institute Environmental Sciences Research Institute Nanotechnology & Advanced Materials Research Institute

Conneely, A, Smyth, Franklin and McMullan, Geoffrey (1999) A study of the microbial degradation of metal phthalocyanine textile dyes by high-performance liquid chromatography and atomic absorption. JOURNAL OF PORPHYRINS AND PHTHALOCYANINES, 3 (6-7). pp. 552-559. [Journal article]

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Abstract

The investigation of the degradation of two commercially available dyes (Remazol Turquoise Blue and Everzol Turquoise Blue) by the lignin-degrading fungus Phanerochaete chrysosporium and comparison with that of a phthalocyanine whose structure is known (Heligon Blue) are presented. Atomic absorption showed a large release of copper from the biomass at day 7. Polarography served to speciate the copper present in the supernatant. Day 5 sees the complete disappearance of the main dye peak with the release of free copper into the supernatant. Day 7 sees a large increase in the free copper signal with two other electroactive species also present in the supernatant, all of which are seen to decrease at day 8. Visible spectroscopy shows that the main decolourization takes place between day 4 and day 6, with complete decolourization occurring at day 7. HPLC analysis again confirms the above results, with possible degradation products detected at 254 nm occurring at 3.621 and 4.170 min at day 7 which may well correlate with those found in polarographic analysis at -1050 and -1150 mV. Day 7 also sees a large increase in a peak at 2.744 min. Copyright (C) 1999 John Wiley & Sons, Ltd.

Item Type:Journal article
Faculties and Schools:Faculty of Life and Health Sciences
Faculty of Life and Health Sciences > School of Biomedical Sciences
Research Institutes and Groups:Biomedical Sciences Research Institute
Biomedical Sciences Research Institute > Northern Ireland Centre for Food and Health (NICHE)
Biomedical Sciences Research Institute > Pharmaceutical Science and Practice
ID Code:1103
Deposited By:Prof W.Franklin Smyth
Deposited On:11 Jan 2010 16:04
Last Modified:16 May 2012 16:38

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