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Iranian Journal of Microbiology، جلد ۲، شماره ۴، صفحات ۲۱۳-۲۲۲
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عنوان انگلیسی Response surface methodology for optimization of culture conditions for dye decolorization by a fungus, Aspergillus niger HM11 isolated from dye affected soil
چکیده انگلیسی مقاله Background and Objectives: Discharge of wastewater from textile dyeing industries has been a problem in terms of pollution and treatment of these waters is a great task. Keeping this in mind, the aim of our current research is to study the effect of various bioprocess variables on decolorization of an azo dye, Congo red, by a fungal isolate, Aspergillus niger HM11. Materials and Methods: Central composite design (CCD) and response surface methodology (RSM) have been applied to design experiments to evaluate the interactive effects of the operating variables: on the decolorization of Congo red. A total of 30 experiments were conducted in the present study and a regression coefficient between the variables was generated. Results: The RSM indicated that pH 6.0, 150 rpm agitation, incubation time of 36 hrs and a glucose concentration of 1.0% were optimal for maximum decolorization of Congo red and the response indicated excellent evaluation of experimental data. Conclusion : From this study, it is very obvious that the fungal isolate, Aspergillus niger HM11 can be used as a promising microbial strain for decolorization of textile dyeing effluent containing similar dyes.
کلیدواژه‌های انگلیسی مقاله Decolorization,Congo red,Aspergillus niger HM11,RSM,CCD
نویسندگان مقاله k karthikeyan | k karthikeyan
gujarat institute of desert ecology, mundra road, bhuj-kachchh -370001, gujarat, india and department of env. sciences, bharathiar university, coimbatore-641 046, tamil nadu, india.


k nanthakumar | k nanthakumar
department of env. sciences, bharathiar university, coimbatore-641 046, tamil nadu, india.


k shanthi | k shanthi
department of env. sciences, p.s.g.c.a.s, coimbatore-641 014, tamil nadu, india.


p lakshmanaperumalsamy | p lakshmanaperumalsamy
karpagam university, eachanari post, coimbatore-641 021, tamil nadu, india.
نشانی اینترنتی http://ijm.tums.ac.ir/index.php/ijm/article/view/74
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