Record number :
737452
Title of article :
Chemical and enzymatic interactions of Direct Black 38 and Direct Brown 1 on release of carcinogenic amines
Author/Authors :
A. Gnanamani، نويسنده , , M. Bhaskar، نويسنده , , Radhakrishnan Ganga، نويسنده , , G. Sekaran، نويسنده , , S. Sadulla، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2004
Pages :
9
From page :
833
To page :
841
Abstract :
Release of amine products from azo compounds is of considerable interest, since most of the metabolized amine products have toxic and carcinogenic characters. Moreover, most of the azo dyes are extensively used as coloring agents in inks, textiles, leathers, food and pharmaceutical industries. The present study emphasis on the quantification and comparison of amines released from water soluble dyes by (i) extra cellular protein (ECP) of Streptomyces sp. SS07 and by (ii) chemical methods. It has been observed that both the methods release considerable quantities of similar type of amine products. Release of amine compounds by ECP and chemical reduction in acid and alkaline sweat medium from a leather garment sample was also assessed. ECP (0.7852 mg protein/mg of ECP) releases benzidine and 4-amino biphenyl from Direct Black 38 and Direct Brown 1 as stable products at pH 9.2 and at 37 °C for a contact period of 24 h. On comparison with chemical reduction, it was observed that about 5–20% increase in the release of amine products by ECP was observed. However, more than 60% of amine products were released by chemical method from leather garment samples than direct treatment with ECP.
Keywords :
azo dyes , Carcinogenic amines , Extracellular fluid protein (ECP) , Streptomyces sp. , GC–MS , Acid sweat , Leather garment samples , LC–MS , Alkalinesweat
Journal title :
Chemosphere
Serial Year :
2004
Link To Document :
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