Aerobic decolorization and degradation of azo dyes by suspended growing cells and immobilized cells of a newly isolated yeast Magnusiomyces ingens LH-F1.
Aerobic decolorization and degradation of azo dyes by suspended growing cells and immobilized cells of a newly isolated yeast Magnusiomyces ingens LH-F1.
复制标题
DOI：
10.1016/j.biortech.2014.02.063
复制
发表时间：
2014-04
影响因子：
11.4
通讯作者：
Liang Tan;Hua Li;S. Ning;Bingwen Xu
中科院分区：
文献类型：
--
作者：
Liang Tan;Hua Li;S. Ning;Bingwen Xu
研究了一株新分离的酵母菌株LH-F1的悬浮生长细胞和固定化细胞对偶氮染料的好氧脱色降解作用。对一株能降解20 mg/L偶氮染料的酵母菌株LH-F1进行了26 S rDNA鉴定，结果表明该菌株为Magnusiomyces ingens。同时，考察了不同工艺参数对LH-F1悬浮细胞和固定化细胞对酸性红B脱色的影响。通过紫外-可见分光光度法和高效液相色谱-质谱联用技术分析染料的代谢中间产物，提出了染料降解的可能途径。就目前所知，这是第一次对aM进行系统的研究。该菌株能够在好氧条件下有效地使偶氮染料脱色。此外，本研究还为偶氮染料工业废水的处理提供了一株具有潜在应用价值的微生物菌株LH-F1。
Aerobic decolorization and degradation of azo dyes by both of suspended growing cells and immobilized cells of a newly isolated yeast strain LH-F1 were investigated in this study. A yeast strain LH-F1 capable of aerobically decolorizing various azo dyes (20 mg/L) was identified asMagnusiomyces ingensbasing on 26S rDNA analysis. Meanwhile, effects of different parameters on decolorization of Acid Red B by both of suspended growing cells and immobilized cells of strain LH-F1 were investigated. Furthermore, possible degradation pathway of the dye was proposed through analyzing metabolic intermediates using UV–Vis and HPLC–MS methods. As far as it is known, it is the first systematic research on aM. ingensstrain which is capable of efficiently decolorizing azo dyes under aerobic condition. Additionally, this work would also provide a potentially useful microbial strain LH-F1 for treatment of industrial wastewaters containing azo dyes.