• 关键词：虎红  偶氮染料  曲霉  脱色  降解

• 基金项目：湖北大学校长基金

• 李孱
• 湖北大学生命科学系,武汉 430062

• 白景华
• 湖北大学生命科学系,武汉 430062

• 文艺辉
• 湖北大学生命科学系,武汉 430062

• 陈怀新
• 湖北大学生命科学系,武汉 430062

• 李林
• 华中农业大学微生物系,武汉 430070

• 摘要：高效的染料脱色菌是解决染料对环境污染的基础和关键.

• Abstract：A dye decolorizing Aspergillus HD 1 was isolated from soil. According to the identification of morphology, it belongs to Aspergillus sp. Strain HD-1 was very effect to decolorize xanthene dye. The decolorization rate of rose bengal for HD-1 could reach 99 0%. Media, carbon sources and nitrogen sources could affect the decolorization. The decolorization capacity of 8 different azo dyes was also tested by strain HD-1. The decolorization rate for all the 8 azo dyes were above 67.6% and half of them above 92.0%. The decolorizases of rose bengal for HD-1 were constitutive ones and were mainly located in the cell of HD-1. The ratio of the decolorizase located in or out of the cell of HD-1 could be changed when rose bengal was added to the medium of growth, and simulated the synthesis of the intracellular enzymes. The products of rose bengal degraded by HD-1 were determined by UV visible spectrophotometer. The absorption peak in 544.8 nm of rose bengal was almost completely disappeared, while the absorption in other UV district was increased, disappeared or diminished.

• Key words：rose bengal  azo dyes  Aspergillus  decolorization  degradation.

• 
  摘要点击次数： 1634 全文下载次数： 3294