Congo Red Decolorization and Detoxification by Aspergillus niger: Removal Mechanisms and Dye Degradation Pathway
المؤلفون المشاركون
Hamdi, Mokhtar
Asses, Nedra
Ayed, Lamia
Hkiri, Neila
المصدر
العدد
المجلد 2018، العدد 2018 (31 ديسمبر/كانون الأول 2018)، ص ص. 1-9، 9ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2018-08-06
دولة النشر
مصر
عدد الصفحات
9
التخصصات الرئيسية
الملخص EN
Congo red is one of the best known and used azo dyes which has two azo bonds (-N=N-) chromophore in its molecular structure.
Its structural stability makes it highly toxic and resistant to biodegradation.
The objective of this study was to assess the congo red biodegradation and detoxification by Aspergillus niger.
The effects of pH, initial dye concentration, temperature, and shaking speed on the decolorization rate and enzymes production were studied.
The maximum decolorization was correlated with lignin peroxidase and manganese peroxidase production.
Above 97% were obtained when 2 g mycelia were incubated at pH 5, in presence of 200 mg/L of dye during 6 days at 28°C and under 120 to 150 rpm shaking speed.
The degraded metabolites were characterized by using LC-MS/MS analyses and the biodegradation mechanism was also studied.
Congo red bioconversion formed degradation metabolites mainly by peroxidases activities, i.e., the sodium naphthalene sulfonate (m/z = 227) and the cycloheptadienylium (m/z = 91).
Phytotoxicity and microtoxicity tests confirmed that degradation metabolites were less toxic than original dye.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Asses, Nedra& Ayed, Lamia& Hkiri, Neila& Hamdi, Mokhtar. 2018. Congo Red Decolorization and Detoxification by Aspergillus niger: Removal Mechanisms and Dye Degradation Pathway. BioMed Research International،Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1125586
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Asses, Nedra…[et al.]. Congo Red Decolorization and Detoxification by Aspergillus niger: Removal Mechanisms and Dye Degradation Pathway. BioMed Research International No. 2018 (2018), pp.1-9.
https://search.emarefa.net/detail/BIM-1125586
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Asses, Nedra& Ayed, Lamia& Hkiri, Neila& Hamdi, Mokhtar. Congo Red Decolorization and Detoxification by Aspergillus niger: Removal Mechanisms and Dye Degradation Pathway. BioMed Research International. 2018. Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1125586
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1125586
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر