一株黑曲霉(Aspergillus niger sp.ZH-1)对活性红ST-2BF的脱色

DECOLORIZATION OF ACTIVE RED ST-2BF BY ASPERGILLUS NIGER SP. ZH-1

通过富集培养,从空气中分离到一株脱色真菌,经初步鉴定为黑曲霉(Aspergillus niger),定名为ZH-1并研究了该菌株ZH-1对活性红ST-2BF脱色的条件,结果表明,其对活性红ST-2BF的最佳脱色条件为:pH=6.0、温度30℃、在此条件下运行40 h脱色率达99.1％;探讨了碳源、氮源和接种量对其脱色率的影响;并对染料降解前后的紫外-可见光光谱进行了分析对比.

A dye-decolorizing fungus strain was isolated from air samples by enrichment culture, and identified as Aspergillus niger and named as ZH-1. The optimum pH and temperature for decolorization were 6. 0 and 30℃, respectively. The decolorizing ratio of active red ST-2BF was 99. 1 % under optimum conditions after 40 h. Carbon sources, nitrogen sources and inoculating amount could affect the decolorizing ratio. The UV-visible spectra of active red ST-2BF was analyzed before and after degradation. Fig 5 , Ref 6