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Decolorization of Anthraquinone dye by Rhodopseudomonas XL—1
引用本文:董晓丽,Zhou Jiti,Wang Jing,Lu Hong. Decolorization of Anthraquinone dye by Rhodopseudomonas XL—1[J]. 高技术通讯(英文版), 2002, 8(2): 11-14
作者姓名:董晓丽  Zhou Jiti  Wang Jing  Lu Hong
作者单位:[1]CollegeofEnvironmentalEngineering,DalianUniversityofTechnology,Dalian116012,P.R.ChinaDepartmentofChemicalEngineering,DalianInstituteofLightIndustry,Dalian116034,P.R.China [2]Collegeof,DalianUniversityofTechnology,Dalian116012,P.R.ChinaDepartmentofChemicalEngineering,DalianInstituteofLightIndustry,Dalian116034,P.R.China
摘    要:Rhodoseudomonas XL-1 gained from textile wastewater can effectively decolorize anthraquinone dye.Under anaerobic condition,93 percent of the anthraquinone dye is decolorized,which is higher than that under aerobic condition.The optimum pH is 6-9 and the optimum temperature is 20-40℃ for the anthraquinone dye decolorization by XL-1,XL-1 can not decolorize the anthraquione dye when it is the sole carbon source.Microbial cometabolism and decolorization of the dye take plasce in the presence of some other carbon source(0.2-0.4g/100ml) called cometabolic substrate.The cometabolic substrate can be peptone,glucose,sodium acetate,beef extract,amylum,etc.The change of molecular structure of the dye before and after decolorized by XL-1 is studied by UV-Vis absorption spectrum.The results indicate that its molecular structure is changed evidently.

关 键 词:蒽醌染料 脱色 漂白 生物降解

Decolorization of Anthraquinone dye by Rhodopseudomonas XL-1
Zhou Jiti,Wang Jing,Lu Hong. Decolorization of Anthraquinone dye by Rhodopseudomonas XL-1[J]. High Technology Letters, 2002, 8(2): 11-14
Authors:Zhou Jiti  Wang Jing  Lu Hong
Abstract:Rhodopseudomonas XL-1 gained from textile wastewater can effectively decolorize anthraquinone dye. Under anaerobic condition, 93 percent of the anthraquinone dye is decolorized , which is higher than that under aerobic condition. The optimum pH is 6~9 and the optimum temperature is 20~40℃ for the anthraquinone dye decolorization by XL-1 . XL-1 can not decolorize the anthraquinone dye when it is the sole carbon source. Microbial cometabolism and decolorization of the dye take place in the presence of some other carbon source(0.2~0.4g/100ml)called cometabolic substrate. The cometabolic substrate can be peptone, glucose, sodium acetate, beef extract, amylum, etc. The change of molecular structure of the dye before and after decolorized by XL-1 is studied by UV-Vis absorption spectrum. The results indicate that its molecular structure is changed evidently.
Keywords:anthraquinone dye  decolorization  biodegradation
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