Rational design of Aspergillus flavus A5p1-immobilized cell system to enhance the decolorization of reactive blue 4(RB4)

作     者：Wenbo Yang Qingyun Li Shiqi Guo Shijie Sun Aixing Tang Haibo Liu Youyan Liu Wenbo Yang;Qingyun Li;Shiqi Guo;Shijie Sun;Aixing Tang;Haibo Liu;Youyan Liu

作者机构：School of Chemistry and Chemical EngineeringGuangxi UniversityNanning 530004China Guangxi Key Laboratory of BiorefiningNanning 530003China 

出 版 物：《Chinese Journal of Chemical Engineering》 (中国化学工程学报（英文版）)

年 卷 期：2022年第52卷第12期

页      面：37-44页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 08[工学] 

基　　金：funded by the National Natural Science Foundation of China(21066001) the Scientific Research Foundation of Guangxi University(XJZ130360) the Innovation and Entrepreneurship Training Program for Undergraduate of Guangxi University(202010593174) 

主　　题：Aspergillus flavus A5p1 Reactive blue 4(RB4) Polyurethane foam(PUF) Immobilized cell Decolorization 

摘      要：Anthraquinone dyes are a class of typical carcinogenic and hard-biodegradable organic *** study aimed to enhance the decolorization of anthraquinone dye by rationally designing an expected immobilized *** blue 4(RB4) was used as a substrate model and a previous isolated dyedegrading strain Aspergillus flavus A5pl was purposefully *** the effects of cell attachment and mass transfer,the polyurethane foam(PUF) with open pore structure was selected as the immobilization *** showed that the RB4 decolorization efficiency was significant enhanced after *** to the free mycelium system,the decolorization time of200 mg·L^(-1)RB4 was shortened from 48 h to 28 h by the PUF-immobilized cell ***,the PUF-immobilized system could tolerate RB4 up to 2000 mg-L^(-1).In the packed bed bioreactor(PBBR),an average decolorization efficiency of 93.3% could be maintained by the PUF-immobilized system for26 *** decolorization process of RB4 was well described by the logistic equation and the degradation pathway was *** was found that the higher specific growth rate of the PUF-immobilized cells was one of reasons for the enhanced *** good performance of the PUFimmobilized cell system would make it have potential application value for RB4 bioremediation.