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Microbial Degradation of Azo Dye Carmoisine in Aqueous Medium Using Saccharomyces Cerevisiae ATCC 9763

Microbial Degradation of Azo Dye Carmoisine in Aqueous Medium Using Saccharomyces Cerevisiae ATCC 9763

Zahra Kiayi, Tayebe Bagheri Lotfabad, Amir Heidarinasab, Fereshteh Shahcheraghi

J Hazard Mater. 2019 Jul 5;373:608-619.

PMID: 30953978

Abstract:

Carmoisine is an azo dye widely used in many industries, and therefore frequently occurs in the effluent of many factories. To our knowledge, biological degradation of carmoisine has received little attention. The present study investigates the capability of Saccharomyces cerevisiae ATCC 9763 for degradation of carmoisine. Spectrophotometry data indicates that carmoisine (50 mg/l) was eliminated from the aqueous medium after approximately 7 h of incubation with Saccharomyces under anaerobic shaking conditions. Thin layer chromatography (TLC) revealed the removal of carmoisine as well as the appearance of aromatic amines in samples collected from the decolourized medium by S. cerevisiae and this was subsequently confirmed by Fourier transform infrared (FTIR) spectroscopy. Liquid chromatography mass spectrometry (LC/MS) was carried out on fractions from consecutive column chromatography and two-dimensional (2D) chromatography. LC/MS indicated degradation of carmoisine into its constituent aromatic amines. In addition, investigating the effect of environmental conditions on the decolourization process indicated that yeast extract could positively affect decolourization rates; shaking significantly accelerated decolourization and shortened the time required for complete biodecolourization from ≃ 8 days to ≃ 7 h; and Saccharomyces was able to consume sucrose as a carbon source and remove the carmoisine despite the presence of sunset yellow, which remained unaffected.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP3567699	Carmoisine		3567-69-9	Price

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