Abstract

In this study, genotoxic properties of some synthetic acidic dyes were researched by umu-test (Salmonella thyphimurium TA1535/pSK1002) which is a short term bacterial test. The study analyzed genetoxic activity of Acid Blue 127, Acid Orange 51, Acid Black 63, Acid Yellow 17 and Acid Blue 113 synthetic acidic dyes in presence and absence of S9 fraction used in Textile industry. Solutions of dyes at concentrations of 400 µg/ml, 120 µg/ml, 40 µg/ml and 4 µg/ml were prepared; and biotransformation effects of dyes that undergo chemical modifications on organisms were examined by measuring betagalactosidase activity in presence of liver enzymes by using rat S9 fraction. At the mentioned concentrations the absorbance values of betagalactosidase activity were measured for 5 synthetic acidic dyes and none of them showed mutagenic effect either in presence or absence of S9 fraction. In addition, these results mean that these synthetic acidic dyes are not metabolized with liver enzymes.

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