Biodegradation of Azo-Dye by a Yeast Candida curvata AN723

Autor:	Toshitaka Kakuta, Takeo Koizumi, Toshiki Okada, Hitoshi Shindo, Kiyoshi Yoshizawa, Kikuo Nojiro, Fukashi Aoki
Rok vydání:	1998
Předmět:	chemistry.chemical_compound Aniline Chromatography Wastewater Chemistry General Medicine Aeration Biodegradation High-performance liquid chromatography Effluent Decomposition Yeast
Zdroj:	Sen'i Gakkaishi. 54:54-57
ISSN:	1884-2259 0037-9875
DOI:	10.2115/fiber.54.54
Popis:	For the purpose of processing waste water discharged from dye-synthesizing plants and dying plants, a yeast Candida curvata AN723 that is capable of decomposing azodye (chrysoidine) was evaluated. When cultivation conditions favorable for decoloration by Candida curvata were examined, it was observed that the strain could decompose and decolor chrysoidine at concentrations of 0.02%. By carrying out aeration of the reacting medium decolorization of up to 94% could be acheived by the 3rd day of cultivation. The decomposition products of chrysoidine, aniline and 1, 2, 4-triaminobenzene, were identifified by paper partition chromatography and high performance liquid chromatography from the decolored effluent. It could be clarified that this strain breaks down azo bonds resolting in considerable decoloration of the effluent.
Databáze:	OpenAIRE
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