1
|
Salem MA, Nour El-Din HT, Hashem AM, Aziz RK. Genome-Scale Investigation of the Regulation of azoR Expression in Escherichia coli Using Computational Analysis and Transposon Mutagenesis. MICROBIAL ECOLOGY 2024; 87:63. [PMID: 38691135 PMCID: PMC11062982 DOI: 10.1007/s00248-024-02380-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 04/12/2024] [Indexed: 05/03/2024]
Abstract
Bacterial azoreductases are enzymes that catalyze the reduction of ingested or industrial azo dyes. Although azoreductase genes have been well identified and characterized, the regulation of their expression has not been systematically investigated. To determine how different factors affect the expression of azoR, we extracted and analyzed transcriptional data from the Gene Expression Omnibus (GEO) resource, then confirmed computational predictions by quantitative reverse transcription polymerase chain reaction (qRT-PCR). Results showed that azoR expression was lower with higher glucose concentration, agitation speed, and incubation temperature, but higher at higher culture densities. Co-expression and clustering analysis indicated ten genes with similar expression patterns to azoR: melA, tpx, yhbW, yciK, fdnG, fpr, nfsA, nfsB, rutF, and chrR (yieF). In parallel, constructing a random transposon library in E. coli K-12 and screening 4320 of its colonies for altered methyl red (MR)-decolorizing activity identified another set of seven genes potentially involved in azoR regulation. Among these genes, arsC, relA, plsY, and trmM were confirmed as potential azoR regulators based on the phenotypic decolorization activity of their transposon mutants, and the expression of arsC and relA was confirmed, by qRT-PCR, to significantly increase in E. coli K-12 in response to different MR concentrations. Finally, the significant decrease in azoR transcription upon transposon insertion in arsC and relA (as compared to its expression in wild-type E. coli) suggests their probable involvement in azoR regulation. In conclusion, combining in silico analysis and random transposon mutagenesis suggested a set of potential regulators of azoR in E. coli.
Collapse
Affiliation(s)
- Mona A Salem
- Department of Microbiology, Faculty of Pharmacy, The British University in Egypt (BUE), 11837, El-Sherouk City, Egypt
| | - Hanzada T Nour El-Din
- Department of Microbiology and Immunology, Faculty of Pharmacy, Cairo University, Qasr El-Ainy St, 11562, Cairo, Egypt
| | - Abdelgawad M Hashem
- Department of Microbiology, Faculty of Pharmacy, The British University in Egypt (BUE), 11837, El-Sherouk City, Egypt
| | - Ramy K Aziz
- Department of Microbiology and Immunology, Faculty of Pharmacy, Cairo University, Qasr El-Ainy St, 11562, Cairo, Egypt.
- Center for Genome and Microbiome Research, Cairo University, 11562, Cairo, Egypt.
- Microbiology and Immunology Research Program, Children's Cancer Hospital Egypt, 57357, 11617, Cairo, Egypt.
| |
Collapse
|
2
|
Samuchiwal S, Sahu A, Selvaraju K, Singh S, Malik A. Unveiling the azo-reductase mechanism in Pseudomonas putida for efficient decolorization of textile Reactive dyes: an in-silico study. J Biomol Struct Dyn 2024:1-14. [PMID: 38284378 DOI: 10.1080/07391102.2024.2308768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 01/14/2024] [Indexed: 01/30/2024]
Abstract
The textile industry utilizing affordable azo dyes is a high threat to aquatic life and causes environmental problems due to their toxicity. Biodegradation of azo dyes employing microbes and enzymes has proved to be an efficient method for treating industrial effluent. This study used the novel microbial consortium to decolorize reactive azo dyes (Reactive Red 120; Reactive Black 5 and Reactive Blue 13), and its azo-reductase activity was evaluated. The metagenomic analysis of the consortium identified azo-reductase-producing bacterial species. The molecular docking revealed that PpAzoR from Pseudomonas putida had the highest binding affinities for all the three dyes such as Reactive Black 5 (-9.3 kcal/mol), Reactive Blue 13 (-9.8 kcal/mol) and Reactive Red 120 (-10.7 kcal/mol). The structural rigidity and stability of the docked complex were confirmed through MD simulations evaluated across multiple descriptors from the simulation trajectories. Further, MMPBSA analysis validated the results that binding of the ligands, i.e. dye molecules Reactive Black (RB5), Reactive Blue (RB13) and Reactive Red (RR120) binding with the Azoreductase (PpAzoR) to the screened Azo-dyes was spontaneous. Based on molecular dynamics simulations for 100 ns, RR 120 showed the highest binding affinity (-411.336 ± 46.799 KJ/mol), followed by RB5 (-288.012 ± 33.371 KJ/mol). The dyes (RR120 and RB5) exhibited stable interactions with the target azoreductase (PpAzoR). The present study provides insights that PpAzoR shows the highest decolorization potency, which could be interpreted as a potential dye-degrading protein based on dye-degrading assay findings.Communicated by Ramaswamy H. Sarma.
Collapse
Affiliation(s)
- Saurabh Samuchiwal
- Applied Microbiology Lab, Centre for Rural Development and Technology, Indian Institute of Technology, Delhi, India
| | - Abhishek Sahu
- Applied Microbiology Lab, Centre for Rural Development and Technology, Indian Institute of Technology, Delhi, India
| | - Koushalya Selvaraju
- Applied Microbiology Lab, Centre for Rural Development and Technology, Indian Institute of Technology, Delhi, India
| | - Shubha Singh
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Assam, India
| | - Anushree Malik
- Applied Microbiology Lab, Centre for Rural Development and Technology, Indian Institute of Technology, Delhi, India
| |
Collapse
|
3
|
Pandey G, Singh N, Rajput N, Saini MK, Kothari SL, Prasad J, Lamba NP, Chauhan MS. Comparative study of NiO/CuO/Ag doped graphene based materials for reduction of nitroaromatic compounds and degradation of dye with statistical study. Sci Rep 2024; 14:2077. [PMID: 38267439 PMCID: PMC10808113 DOI: 10.1038/s41598-024-51342-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Accepted: 01/03/2024] [Indexed: 01/26/2024] Open
Abstract
In the present work, the Nickel oxide (rGO-NiO), Silver (rGO-Ag), Copper oxide (rGO-CuO) doped Graphene Oxide are reported for catalytic reactions. A comparative study for catalytic activities of these materials are performed with nitroaromatic compound 4-nitroaniline and the results are statistically studied by using univariate analysis of variance and Post Hoc Test through Statistical Package for Social Sciences and it is observed that CuO doped Graphene material is showing better catalytic activity in minimum time. So, further research has been focused on the catalytic acitivity of rGO-CuO only and it is found that it is efficient in reducing other nitro compounds also such as Picric acid and Nitrobenzene. Dye degradation of Methylene blue is also performed using CuO decorated Graphene material and significant changes were observed using UV spectroscopy. The characterization of rGO-CuO is done with Fourier-transform Infrared Spectroscopy, Powder X-ray Diffraction, Thermogravimetric Analysis, Scanning Electron Microscope and Transmission Electron Microscopy.
Collapse
Affiliation(s)
| | - Nidhi Singh
- Department of Information System, North Eastern University, Boston, USA
| | | | | | | | | | | | | |
Collapse
|
4
|
Maity S, Gaur D, Mishra B, Dubey NC, Tripathi BP. Bactericidal and biocatalytic temperature responsive microgel based self-cleaning membranes for water purification. J Colloid Interface Sci 2023; 642:129-144. [PMID: 37003009 DOI: 10.1016/j.jcis.2023.03.095] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 03/01/2023] [Accepted: 03/15/2023] [Indexed: 03/31/2023]
Abstract
The present study focuses on creating an antimicrobial and biocatalytic smart gating membrane by synthesizing unique core-shell microgels. The core-shell microgels are synthesized by grafting short chains of poly(ethylenimine) (PEI) onto a poly((N-isopropyl acrylamide)-co-glycidyl methacrylate)) (P(NIPAm-co-GMA)) core. Subsequently, the produced microgels are utilized as a substrate for synthesizing and stabilizing silver nanoparticles (Ag NPs) through an in-situ approach. These Ag NPs immobilized microgels are then suction filtered over a polyethylene terephthalate (PET) track-etched support to create cross-linked composite microgel membranes (CMMs). After structural and permeation characterization of the prepared CMMs, the laccase enzyme is then covalently grafted to the surface of the membrane and tested for its effectiveness in degrading Reactive red-120 dye. The laccase immobilized biocatalytic CMMs show effective degradation of the Reactive red-120 by 71%, 48%, and 34% at pH 3, 4, and 5, respectively. Furthermore, the immobilized laccase enzyme showed better activity and stability in terms of thermal, pH, and storage compared to the free laccase, leading to increased reusability. The unique combination of Ag NPs and laccase on a thermoresponsive microgel support resulted in a responsive self-cleaning membrane with excellent antimicrobial and dye degradation capabilities for environmentally friendly separation technology.
Collapse
|
5
|
Ullah A, Chan MWH, Aslam S, Khan A, Abbas Q, Ali S, Ali M, Hussain A, Mirani ZA, Sibt-E-Hassan S, Kazmi MR, Ali S, Hussain S, Khan AM. Banned Sudan dyes in spices available at markets in Karachi, Pakistan. FOOD ADDITIVES & CONTAMINANTS. PART B, SURVEILLANCE 2023; 16:69-76. [PMID: 35909386 DOI: 10.1080/19393210.2022.2100489] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Abstract
Sudan dyes were investigated in branded and non-branded spices, commonly available in the markets of Karachi, Pakistan. High performance liquid chromatography (HPLC) with a variable wavelength detector (VWD) was applied to determine Sudan dyes I-IV. The non-branded samples had higher concentrations of Sudan dyes than the maximum limits of 0.1 mg/kg. The highest concentration of Sudan dye (I) was found in turmeric powder (8460 mg/kg) and the lowest concentration (1.50 mg/kg) of Sudan (IV) in Chaat Masala. This indicates that the use of non-branded spices is not safe, whereas no Sudan dye was found in the branded spice samples. Further studies regarding the higher carcinogenic risk posed by Sudan dye adulterated spices in Pakistan is strongly advised.
Collapse
Affiliation(s)
- Asad Ullah
- Food and Marine Resources Research Center, PCSIR Laboratories Complex, Karachi, Karachi, Pakistan.,Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology & Business University (BTBU), Beijing, China
| | - Malik Wajid Hussain Chan
- Department of Chemistry, Faculty of Science, Federal Urdu University of Arts, Science and Technology, Karachi, Pakistan
| | - Sadar Aslam
- Institute of Marine Science, University of Karachi, Karachi, Pakistan.,Department of Microbiology, University of Karachi, Karachi, Paksitan
| | - Ali Khan
- Department of Mathematical Sciences & Research Centre, Federal Urdu University of Arts, Sciences and Technology (FUUAST), Karachi, Pakistan
| | - Qamar Abbas
- Biological Science Department, Karakoram International University, Gilgit, Pakistan
| | - Shamsher Ali
- Department of Chemistry, Karakoram International University, Gilgit, Pakistan
| | - Meher Ali
- Department of Chemistry, Karakoram International University, Gilgit, Pakistan
| | - Abid Hussain
- Department of Agriculture and Agribusiness Management, University of Karachi, Karachi, Pakistan
| | - Zulfiqar Ali Mirani
- Food and Marine Resources Research Center, PCSIR Laboratories Complex, Karachi, Karachi, Pakistan
| | - Syed Sibt-E-Hassan
- Department of Chemistry, Karakoram International University, Gilgit, Gilgit-Baltistan, Pakistan
| | - Mohib Reza Kazmi
- Department of Applied Chemistry, Faculty of Science, University of Karachi, Karachi, Pakistan
| | - Shaukat Ali
- Department of Environmental Sciences, Karakoram International University, Gilgit, Pakistan
| | - Shafqat Hussain
- Department of Chemistry, University of Baltistan, Skardu, Pakistan
| | - Abdul Majeed Khan
- Department of Chemistry, Faculty of Science, Federal Urdu University of Arts, Science and Technology, Karachi, Pakistan
| |
Collapse
|
6
|
Schubert S, Kluger N, Schreiver I. Hypersensitivity to permanent tattoos: Literature summary and comprehensive review of patch tested tattoo patients 1997-2022. Contact Dermatitis 2023; 88:331-350. [PMID: 36772861 DOI: 10.1111/cod.14291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 02/01/2023] [Accepted: 02/08/2023] [Indexed: 02/12/2023]
Abstract
We outline constituents of tattoo and permanent make-up ink with regard to inflammatory tattoo reactions and population-based confounders. The comprehensive review of patch-tested tattoo patients between 1997 and 2022 shows that tattoo allergy cannot be reliably diagnosed via patch testing with today's knowledge. Weak penetration and slow haptenization of pigments, unavailability of pigments as test allergens and a lack of knowledge concerning relevant epitopes hamper the diagnosis of tattoo allergy. Patch testing p-phenylenediamine and disperse (textile) dyes is not able to close this gap. Sensitization to metals was associated with all types of tattoo complications, although often not clinically relevant for the tattoo reaction. Binders and industrial biocides are frequently missing on ink declarations and should be patch tested. The pigment carbon black (C.I. 77266) is no skin sensitizer. Patch tests with culprit inks were usually positive with cheap ink products for non-professional use or with professionally used inks in patients with eczematous reactions characterized by papules and infiltration. Tape stripping before patch testing and patch test readings on Day 8 or 10 may improve the diagnostic quality. The meaningfulness of the categorical EU-wide ban of Pigment Green 7 and Pigment Blue 15:3 is not substantiated by the presented data.
Collapse
Affiliation(s)
- Steffen Schubert
- Information Network of Departments of Dermatology (IVDK), Institute at the University Medical Center Göttingen, Göttingen, Germany
| | - Nicolas Kluger
- Department of Dermatology, 'Tattoo' Consultation, Bichat-Claude Bernard Hospital, Assistance Publique - Hôpitaux de Paris, Paris, France.,Department of Dermatology, University of Helsinki and Helsinki University Central Hospital, Helsinki, Finland
| | - Ines Schreiver
- Department of Chemical and Product Safety, German Federal Institute for Risk Assessment (BfR), Berlin, Germany
| |
Collapse
|
7
|
Pérez-Aranda M, Pajuelo E, Navarro-Torre S, Pérez-Palacios P, Begines B, Rodríguez-Llorente ID, Torres Y, Alcudia A. Antimicrobial and Antibiofilm Effect of 4,4'-Dihydroxy-azobenzene against Clinically Resistant Staphylococci. Antibiotics (Basel) 2022; 11:antibiotics11121800. [PMID: 36551456 PMCID: PMC9774766 DOI: 10.3390/antibiotics11121800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Revised: 12/07/2022] [Accepted: 12/08/2022] [Indexed: 12/14/2022] Open
Abstract
The spread of antibiotic resistance among human and animal pathogens is one of the more significant public health concerns. Moreover, the restrictions on the use of particular antibiotics can limit the options for the treatment of infections in veterinary clinical practice. In this context, searching for alternative antimicrobial substances is crucial nowadays. In this study, 4,4'-dihydroxy-azobenzene (DHAB) was tested for its potential in vitro as an antimicrobial agent against two relevant human and animal pathogens, namely Staphylococcus aureus and Staphylococcus pseudintermedius. The values of minimal inhibitory concentration (MIC) were 64 and 32 mg/L respectively, and they comparable to other azo compounds of probed antimicrobial activity. In addition, the minimal bactericidal concentrations (MCB) were 256 and 64 mg/L. The mechanism by which DHAB produces toxicity in staphylococci has been investigated. DHAB caused membrane damage as revealed by the increase in thiobarbituric acid reactive substances (TBARS) such as malondialdehyde. Furthermore, differential induction of the enzymes peroxidases and superoxide dismutase in S. aureus and S. pseudintermedius suggested their prevalent role in ROS-scavenging due to the oxidative burst induced by this compound in either species. In addition, this substance was able to inhibit the formation of biofilms by both bacteria as observed by colorimetric tests and scanning electron microscopy. In order to assess the relevance of DHAB against clinical strains of MRSA, 10 clinical isolates resistant to either methicillin or daptomycin were assayed; 80% of them gave values of CMI and CMB similar to those of the control S. aureus strain. Finally, cutaneous plasters containing a composite formed by an agar base supplemented with DHAB were designed. These plasters were able to inhibit in vitro the growth of S. aureus and S. pseudintermedius, particularly the later, and this suggests that this substance could be a promising candidate as an alternative to antibiotics in the treatment of animal skin infections, as it has been proven that the toxicity of this substance is very low particularly at a dermal level.
Collapse
Affiliation(s)
- María Pérez-Aranda
- Departamento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad de Sevilla, c/Profesor García González, 2, 41012 Sevilla, Spain
- Departamento de Microbiología y Parasitología, Facultad de Farmacia, Universidad de Sevilla, c/Profesor García González, 2, 41012 Sevilla, Spain
| | - Eloísa Pajuelo
- Departamento de Microbiología y Parasitología, Facultad de Farmacia, Universidad de Sevilla, c/Profesor García González, 2, 41012 Sevilla, Spain
- Correspondence: (E.P.); (A.A.); Tel.: +34-954556924 (E.P.); +34-954556740 (A.A.)
| | - Salvadora Navarro-Torre
- Departamento de Microbiología y Parasitología, Facultad de Farmacia, Universidad de Sevilla, c/Profesor García González, 2, 41012 Sevilla, Spain
| | - Patricia Pérez-Palacios
- UGC Enfermedades Infecciosas, Microbiología Clínica y Medicina Preventiva, Instituto de Biomedicina de Sevilla IBIS, Hospital Universitario Virgen Macarena, CSIC, Universidad de Sevilla, 41009 Seville, Spain
| | - Belén Begines
- Departamento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad de Sevilla, c/Profesor García González, 2, 41012 Sevilla, Spain
| | - Ignacio D. Rodríguez-Llorente
- Departamento de Microbiología y Parasitología, Facultad de Farmacia, Universidad de Sevilla, c/Profesor García González, 2, 41012 Sevilla, Spain
| | - Yadir Torres
- Departamento de Ingeniería y Ciencia de los Materiales y del Transporte, Escuela Politécnica Superior, Universidad de Sevilla, Virgen de África 7, 41011 Sevilla, Spain
| | - Ana Alcudia
- Departamento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad de Sevilla, c/Profesor García González, 2, 41012 Sevilla, Spain
- Correspondence: (E.P.); (A.A.); Tel.: +34-954556924 (E.P.); +34-954556740 (A.A.)
| |
Collapse
|
8
|
Ren Z, Wang Z, Lv L, Ma P, Zhang G, Li Y, Qin Y, Wang P, Liu X, Gao W. Fe-N complex biochar as a superior partner of sodium sulfide for methyl orange decolorization by combination of adsorption and reduction. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 316:115213. [PMID: 35561493 DOI: 10.1016/j.jenvman.2022.115213] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 04/29/2022] [Accepted: 04/30/2022] [Indexed: 06/15/2023]
Abstract
To enhance the decolorization of methyl orange (MO), Fe-N complex biochar (Fe-N-BC) was developed as an accelerator in the sodium sulfide (Na2S) reduction system. The decolorization effect and mechanism of MO in the Fe-N-BC/Na2S composite system were studied. Surface pore analysis, Raman spectroscopy, FT-IR, XPS, and electrochemical analysis were used to characterize Fe-N-BC and unmodified biochar (BC). These results demonstrated that Fe-N-BC had better adsorption performance (specific surface area 463.46 m2 g-1) and electron transfer capacity than BC. By adding Fe-N-BC to the Na2S reduction system for MO, it was found that the decolorization of MO was greatly improved (increased by 93%). Besides, the effects of critical factors such as the initial concentration of Na2S, the dosage of Fe-N-BC, pH value, and temperature on the decolorization rate of MO were evaluated. Through the analysis of the action mechanism, the cooperation mode of Fe-N-BC and Na2S was to form an infinite cycle of adsorption-reduction-regeneration, so as to realize the rapid decolorization of MO. On the one hand, Fe-N-BC could adsorb MO and Na2S on its surface to increase the contact opportunity; on the other hand, it could act as a redox mediator to accelerate the electron transfer of the reduction reaction. In addition, the degradation of MO by Na2S was also an in-situ regeneration of Fe-N-BC. These findings may provide a feasible method to decolorize azo dyes quickly by cooperating with chemical reducing agents from a new perspective.
Collapse
Affiliation(s)
- Zhijun Ren
- Tianjin Key Laboratory of Clean Energy and Pollution Control, School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin 300401, PR China.
| | - Zhanxin Wang
- Tianjin Key Laboratory of Clean Energy and Pollution Control, School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin 300401, PR China
| | - Longyi Lv
- Tianjin Key Laboratory of Clean Energy and Pollution Control, School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin 300401, PR China.
| | - Peiyu Ma
- Tianjin Key Laboratory of Clean Energy and Pollution Control, School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin 300401, PR China
| | - Guangming Zhang
- Tianjin Key Laboratory of Clean Energy and Pollution Control, School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin 300401, PR China
| | - Yuyou Li
- Department of Civil and Environmental Engineering, Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan
| | - Yu Qin
- Department of Civil and Environmental Engineering, Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan
| | - Pengfei Wang
- Tianjin Key Laboratory of Clean Energy and Pollution Control, School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin 300401, PR China
| | - Xiaoyang Liu
- Tianjin Key Laboratory of Clean Energy and Pollution Control, School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin 300401, PR China
| | - Wenfang Gao
- Tianjin Key Laboratory of Clean Energy and Pollution Control, School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin 300401, PR China
| |
Collapse
|
9
|
Bekhit F, Farag S, Attia AM. Characterization of Immobilized Magnetic Fe 3O 4 Nanoparticles on Raoultella Ornithinolytica sp. and Its Application for Azo Dye Removal. Appl Biochem Biotechnol 2022; 194:6068-6090. [PMID: 35881226 DOI: 10.1007/s12010-022-04076-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Accepted: 07/05/2022] [Indexed: 11/30/2022]
Abstract
A high-performance immobilized bacterial strain coated with magnetic iron oxide nanoparticles was used for Basic Blue 41 azo dye (BB 41 dye) decolorization. To create the coated bacterial strain, Raoultella Ornithinolytica sp. was isolated and identified under the accession number KT213695, then coated with manufactured magnetic iron oxide nanoparticles. SEM and SEM-EDX were used to characterize the coated bacteria and validate its morphological structure formation. The coated Raoultella Ornithinolytica sp. A1 (coated A1) generated a 95.20% decolorization for BB 41 dye at 1600 ppm starting concentration with an optimal dose of coated A1 5 mL/L, pH 8, under static conditions for 24 h at 37 °C. Continuous batch cycles were used, with BB 41 dye (1600 ppm) added every 24 h four times, to achieve a high decolorization efficiency of 80.14%. Furthermore, the metabolites of BB 41 dye biodegradation were investigated by gas chromatographic-mass spectrum analysis (GC-MS) and showed a less toxic effect on the bioindicator Artemia salina. Additionally, 5 mL/L of coated A1 demonstrated the highest decolorization rate (47.2%) when applied to a real wastewater sample after 96 h with a consequent reduction in COD from 592 to 494 ppm.
Collapse
Affiliation(s)
- Fatma Bekhit
- Department of Environmental Studies, Institute of Graduate Studies and Research, Alexandria University, Alexandria, Egypt
| | - Soha Farag
- Environmental Biotechnology Department, Genetic Engineering and Biotechnology Research Institute, City of Scientific Research and Technological Applications, Alexandria, Egypt.
| | - Ahmed M Attia
- Department of Environmental Studies, Institute of Graduate Studies and Research, Alexandria University, Alexandria, Egypt
| |
Collapse
|
10
|
Cross Talk between Synthetic Food Colors (Azo Dyes), Oral Flora, and Cardiovascular Disorders. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12147084] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Synthetic food colors are important ingredients in the food industry. These synthetic food colorants are azo dyes, majorly acidic in nature such as Allura red and Tartrazine. They are present in sweets, carbonated drinks, meat products, and candies to attract the consumers. This review article is an attempt to explain the adverse effects of azo dyes and their association with oral cavities and cardiovascular disorders. These synthetic dyes (azo dyes) have staining effects on dentin. Poor dental care accelerates the bacterial accumulation on the dental crown (Gram-negative bacteria P. gingivalis, T. denticola, and T. forsythia and Gram-positive bacteria Strep. Gordonii), causing the washing of enamel, forming dental plaque. Bacterial pathogens (P. ginigivalis and F. nacleatum) release different chemicals (FadA and Fap2) that bind to protein on the cell by producing an inflammatory response through different line-host defenses, such as Gingival epithelial cells (ECs), Hemi-desmosomes, and desmosomes, which helps the bacterium migration from the cell–cell junction. This makes the junctions slightly open up and makes the whole vessel permeable, through which the bacterium enters into the blood stream line. This leads to different major arteries, such as the carotid artery, and causes the accumulation of plaque in major cardiac arteries, which causes different cardiovascular disorders. These bacterial species present in gums cause cardiovascular diseases, such as ischemic heart disease, coronary artery disease, heart attacks and strokes, and arrhythmias, which can lead to death.
Collapse
|
11
|
Thomas OE, Adegoke OA. Synthesis, characterization and solvatochromic behaviour of new water-soluble 8-hydroxy-3,6-disulphonaphthyl azohydroxynaphthalenes. JOURNAL OF TAIBAH UNIVERSITY FOR SCIENCE 2022. [DOI: 10.1080/16583655.2022.2070903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Olusegun E. Thomas
- Department of Pharmaceutical Chemistry, University of Ibadan, Ibadan, Nigeria
| | - Olajire A. Adegoke
- Department of Pharmaceutical Chemistry, University of Ibadan, Ibadan, Nigeria
| |
Collapse
|
12
|
Biodegradation, Decolorization, and Detoxification of Di-Azo Dye Direct Red 81 by Halotolerant, Alkali-Thermo-Tolerant Bacterial Mixed Cultures. Microorganisms 2022; 10:microorganisms10050994. [PMID: 35630437 PMCID: PMC9147255 DOI: 10.3390/microorganisms10050994] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 05/01/2022] [Accepted: 05/04/2022] [Indexed: 01/27/2023] Open
Abstract
Azo dyes impact the environment and deserve attention due to their widespread use in textile and tanning industries and challenging degradation. The high temperature, pH, and salinity used in these industries render industrial effluent decolorization and detoxification a challenging process. An enrichment technique was employed to screen for cost-effective biodegraders of Direct Red 81 (DR81) as a model for diazo dye recalcitrant to degradation. Our results showed that three mixed bacterial cultures achieved ≥80% decolorization within 8 h of 40 mg/L dye in a minimal salt medium with 0.1% yeast extract (MSM-Y) and real wastewater. Moreover, these mixed cultures showed ≥70% decolorization within 24 h when challenged with dye up to 600 mg/L in real wastewater and tolerated temperatures up to 60 °C, pH 10, and 5% salinity in MSM-Y. Azoreductase was the main contributor to DR81 decolorization based on crude oxidative and reductive enzymatic activity of cell-free supernatants and was stable at a wide range of pH and temperatures. Molecular identification of azoreductase genes suggested multiple AzoR genes per mixed culture with a possible novel azoreductase gene. Metabolite analysis using hyphenated techniques suggested two reductive pathways for DR81 biodegradation involving symmetric and asymmetric azo-bond cleavage. The DR81 metabolites were non-toxic to Artemia salina nauplii and Lepidium sativum seeds. This study provided evidence for DR81 degradation using robust stress-tolerant mixed cultures with potential use in azo dye wastewater treatment.
Collapse
|
13
|
Riaz M, Sharafat U, Zahid N, Ismail M, Park J, Ahmad B, Rashid N, Fahim M, Imran M, Tabassum A. Synthesis of Biogenic Silver Nanocatalyst and their Antibacterial and Organic Pollutants Reduction Ability. ACS OMEGA 2022; 7:14723-14734. [PMID: 35557704 PMCID: PMC9088900 DOI: 10.1021/acsomega.1c07365] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 04/01/2022] [Indexed: 05/24/2023]
Abstract
Plant-mediated nanoparticles are gaining popularity due to biologically active secondary metabolites that aid in green synthesis. This study describes a simple, environmentally friendly, dependable, and cost-effective production of silver nanoparticles utilizing Cucumis sativus and Aloe vera aqueous leaf extracts. The aqueous leaf extracts of Cucumis sativus and Aloe vera, which worked as a reducing and capping agent, were used to biosynthesize silver nanoparticles (AgNPs). The formation of surface plasmon resonance peaks at 403 and 405 nm corresponds to the formation of colloidal Ag nanoparticles. Similarly, the Bragg reflection peaks in X-ray diffraction patterns observed at 2θ values of 38.01°, 43.98°, 64.24°, and 77.12° representing the planes of [111], [200], [220], and [311] correspond to the face-centered cubic crystal structure of silver nanoparticles. Fourier transform infrared spectroscopy confirms that bioactive chemicals are responsible for the capping of biogenic silver nanoparticles. The size, structure, and morphology of AgNPs with diameters ranging from 8 to 15 nm were examined using transmission electron microscopy. Water contamination by azo dyes and nitrophenols is becoming a more significant threat every day. The catalytic breakdown of organic azo dye methyl orange (MO) and the conversion of para-nitrophenol (PNP) into para-aminophenol using sodium borohydride was evaluated using the prepared biogenic nanoparticles. Our nanoparticles showed excellent reduction ability against PNP and MO with rate constants of 1.51 × 10-3 and 6.03 × 10-4s-1, respectively. The antibacterial activity of the nanomaterials was also tested against four bacteria: Staphylococcus aureus, Klebsiella pneumoniae, Enterobacter, and Streptococcus pneumoniae. These biogenic AgNPs displayed effective catalytic and antibacterial characteristics by reducing MO and PNP and decreasing bacterial growth.
Collapse
Affiliation(s)
- Muhammad Riaz
- Department
of Biological Sciences, International Islamic
University Islamabad, Islamabad 44000, Pakistan
- School
of Electrical Engineering and Computer Science, University of Ottawa, Ottawa K1N 6N5, Ontario, Canada
| | - Uzma Sharafat
- Institute
of Chemical Sciences, University of Swat, Swat 19200, Khyber Pakhtunkhwa, Pakistan
| | - Nafeesa Zahid
- Department
of Botany, Mirpur University of Science
and Technology, Mirpur 10250, Azad Kashmir, Pakistan
| | - Muhammad Ismail
- Department
of Chemistry, Kohat University of Science
& Technology, Kohat 26000, Khyber Pakhtunkhwa, Pakistan
| | - Jeongwon Park
- School
of Electrical Engineering and Computer Science, University of Ottawa, Ottawa K1N 6N5, Ontario, Canada
- Department
of Electrical and Biomedical Engineering, University of Nevada, Reno 89557, Nevada, United States
| | - Bashir Ahmad
- Department
of Biological Sciences, International Islamic
University Islamabad, Islamabad 44000, Pakistan
| | - Neelum Rashid
- Department
of Botany, Mirpur University of Science
and Technology, Mirpur 10250, Azad Kashmir, Pakistan
| | - Muhammad Fahim
- Department
of Biological Sciences, International Islamic
University Islamabad, Islamabad 44000, Pakistan
| | - Muhammad Imran
- Department
of Biological Sciences, International Islamic
University Islamabad, Islamabad 44000, Pakistan
| | - Aisha Tabassum
- Department
of Biochemistry, University of Sialkot, Sialkot 51040, Pakistan
| |
Collapse
|
14
|
Fraser TR, Ross KE, Alexander U, Lenehan CE. Current knowledge of the degradation products of tattoo pigments by sunlight, laser irradiation and metabolism: a systematic review. JOURNAL OF EXPOSURE SCIENCE & ENVIRONMENTAL EPIDEMIOLOGY 2022; 32:343-355. [PMID: 34274958 DOI: 10.1038/s41370-021-00364-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 06/27/2021] [Accepted: 06/29/2021] [Indexed: 06/13/2023]
Abstract
The popularity of tattooing has increased significantly over recent years. This has raised concerns about the safety of tattoo inks and their metabolites/degradation products. The photolytic and metabolic degradation of tattoo pigments may result in the formation of toxic compounds, with unforeseen health risks. A systematic literature review was undertaken to determine the current state of knowledge of tattoo pigments' degradation products when irradiated with sunlight, laser light or metabolised. The review demonstrates that there is a lack of knowledge regarding tattoo pigment degradation/metabolism, with only eleven articles found pertaining to the photolysis of tattoo pigments and two articles on the metabolism of tattoo pigments. The limited research indicates that the photolysis of tattoo pigments could result in many toxic degradation products, including hydrogen cyanide and carcinogenic aromatic amines.
Collapse
Affiliation(s)
- Tristan R Fraser
- College of Science and Engineering, Flinders University, Bedford Park, SA, Australia
| | - Kirstin E Ross
- College of Science and Engineering, Flinders University, Bedford Park, SA, Australia
| | - Ula Alexander
- College of Science and Engineering, Flinders University, Bedford Park, SA, Australia
| | - Claire E Lenehan
- College of Science and Engineering, Flinders University, Bedford Park, SA, Australia.
| |
Collapse
|
15
|
Microbial Degradation of Azo Dyes: Approaches and Prospects for a Hazard-Free Conversion by Microorganisms. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19084740. [PMID: 35457607 PMCID: PMC9026373 DOI: 10.3390/ijerph19084740] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 04/08/2022] [Accepted: 04/11/2022] [Indexed: 11/16/2022]
Abstract
Azo dyes have become a staple in various industries, as colors play an important role in consumer choices. However, these dyes pose various health and environmental risks. Although different wastewater treatments are available, the search for more eco-friendly options persists. Bioremediation utilizing microorganisms has been of great interest to researchers and industries, as the transition toward greener solutions has become more in demand through the years. This review tackles the health and environmental repercussions of azo dyes and its metabolites, available biological approaches to eliminate such dyes from the environment with a focus on the use of different microorganisms, enzymes that are involved in the degradation of azo dyes, and recent trends that could be applied for the treatment of azo dyes.
Collapse
|
16
|
|
17
|
Vishnu D, Dhandapani B, Authilingam S, Sivakumar SV. A Comprehensive Review of Effective Adsorbents Used for the Removal of
Dyes from Wastewater. CURR ANAL CHEM 2022. [DOI: 10.2174/1573411016999200831111155] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Aim:
The objective of the review paper aims to explore and to provide the insight of various low-cost adsorbents prepared and used in the removal of hazardous dye pollutants from the contaminated industrial effluents.
Background:
The major untreated discharge from the textile industries constitutes a wide range of organic contaminants with the enhanced concentration of biological oxygen demand and chemical oxygen demand inthe water bodies. Dyes are considered as the major water contaminants and this quest the researchers to adopt various technologies to remove the hazardous dye pollutants from the aquatic environment. Dyes are the chemical compounds that tend to adhere themselves with metal or salts by covalent bond formation or complexes by mechanical retention or physical adsorption so as to impart colours to which it is being applied.
Objective:
Numerous treatment methodologies which have been applied to the degradation of dyes. The current study has been focused on the distinct low cost and cost-effective adsorbents used in the removal of various dye pollutants. Also, the application of nanoparticles in the removal of the hazardous dye pollutants had received great interest because of its size and high reactive nature.
Methods:
The treatment technologies used in the removal of dye pollutants from wastewater have been listed as adsorption, coagulation, electrocoagulation, flocculation, membrane filtration, oxidation and biological treatment.
Results:
The complex structure of the dyes causes a great harmful impact on the aquatic environment. Though numerous treatment technologies have been applied, adsorption has been preferred by various researchers because of its cost-effective nature.
Conclusion:
The various adsorbents are used in the removal of cationic, anionic and non-ionic dyes. The different types of adsorbent from agricultural waste, activated carbons, nanomaterials and biomaterials have been discussed with the advantages and limitations.
Collapse
Affiliation(s)
- Dhanya Vishnu
- Department of Chemical Engineering, SSN College of Engineering, Chennai –603 110,India
| | - Balaji Dhandapani
- Department of Chemical Engineering, SSN College of Engineering, Chennai –603 110,India
| | - Swetha Authilingam
- Department of Chemical Engineering, SSN College of Engineering, Chennai –603 110,India
| | | |
Collapse
|
18
|
Mishra A, Takkar S, Joshi NC, Shukla S, Shukla K, Singh A, Manikonda A, Varma A. An Integrative Approach to Study Bacterial Enzymatic Degradation of Toxic Dyes. Front Microbiol 2022; 12:802544. [PMID: 35154033 PMCID: PMC8831545 DOI: 10.3389/fmicb.2021.802544] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 11/30/2021] [Indexed: 01/14/2023] Open
Abstract
Synthetic dyes pose a large threat to the environment and consequently to human health. Various dyes are used in textile, cosmetics, and pharmaceutical industries, and are released into the environment without any treatment, thus adversely affecting both the environment and neighboring human populations. Several existing physical and chemical methods for dye degradation are effective but have many drawbacks. Biological methods over the years have gained importance in the decolorization and degradation of dye and have also overcome the disadvantages of physiochemical methods. Furthermore, biological methods are eco-friendly and lead to complete decolorization. The mechanism of decolorization and degradation by several bacterial enzymes are discussed in detail. For the identification of ecologically sustainable strains and their application at the field level, we have focused on bioaugmentation aspects. Furthermore, in silico studies such as molecular docking of bacterial enzymes with dyes can give a new insight into biological studies and provide an easy way to understand the interaction at the molecular level. This review mainly focuses on an integrative approach and its importance for the effective treatment and decolorization of dyes.
Collapse
Affiliation(s)
- Arti Mishra
- Amity Institute of Microbial Technology, Amity University, Noida, India
- *Correspondence: Arti Mishra,
| | - Simran Takkar
- Amity Institute of Microbial Technology, Amity University, Noida, India
| | | | - Smriti Shukla
- Amity Institute of Environmental Toxicology, Safety and Management, Amity University, Noida, India
| | - Kartikeya Shukla
- Amity Institute of Environmental Sciences, Amity University, Noida, India
| | - Anamika Singh
- Department of Botany, Maitreyi College, University of Delhi, New Delhi, India
| | | | - Ajit Varma
- Amity Institute of Microbial Technology, Amity University, Noida, India
| |
Collapse
|
19
|
Sharma K, Sharma P, Dhiman SK, Chadha P, Saini HS. Biochemical, genotoxic, histological and ultrastructural effects on liver and gills of fresh water fish Channa punctatus exposed to textile industry intermediate 2 ABS. CHEMOSPHERE 2022; 287:132103. [PMID: 34488055 DOI: 10.1016/j.chemosphere.2021.132103] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 08/12/2021] [Accepted: 08/29/2021] [Indexed: 06/13/2023]
Abstract
The study was planned to assess the acute toxicity of textile industry intermediate, 2 amino benzene sulfonate (2 ABS) through biochemical, genotoxic, histopathological and ultrastructural (SEM) analysis in liver and gills of fresh water fish Channa punctatus. The fish were subjected to two sublethal concentrations (2.83 mg/30 g b. w. and 5.66 mg/30 g b. w.) for 96 h. A significant (p ≤ 0.05) increment in the enzymatic activity of catalase (CAT), superoxide dismutase (SOD) and glutathione reductase (GR) was observed followed by decline on CAT-SOD after 96 h of exposure in both the tissues, whereas increment in malondialdehyde (MDA) levels were observed throughout the exposure period for both the concentrations. Comet assay also showed elevated tail length and % tail DNA throughout the exposure period, marking maximum damage after 96 h for both the tissues. Light microscopy divulged several anomalies including: infiltration of lymphocytes, sinusoidal dilations, necrosis, vacuolation in liver and secondary lamellae fusion, telangiectasia and epithelial uplifting in gills. The highest degree of tissue change (DTC) in liver (50.33 ± 0.88) and gill (42.33 ± 2.18) was recorded with the highest concentration after 96 h of exposure. Scanning electron microscopy (SEM) also reaffirmed several alterations in liver and gills of fish. The findings of the present study inflict changes in liver and gills, marking the interference of 2 ABS with the normal functioning by suppressing the enzymatic activity, accelerating the lipid peroxidation, enhancing DNA damage and by disrupting normal architecture of liver and gills, making it toxic towards the fish even at sub-lethal concentrations.
Collapse
Affiliation(s)
- Khushboo Sharma
- Cytogenetics Lab, Department of Zoology, Guru Nanak Dev University, Amritsar, 143005, India.
| | - Prince Sharma
- Cytogenetics Lab, Department of Zoology, Guru Nanak Dev University, Amritsar, 143005, India.
| | - Shakti Kumar Dhiman
- Instrumentation Division, CSIR-Indian Institute of Integrative Medicine, Jammu, 180016, India.
| | - Pooja Chadha
- Cytogenetics Lab, Department of Zoology, Guru Nanak Dev University, Amritsar, 143005, India.
| | | |
Collapse
|
20
|
Patidar P, Prakash T. Decoding the roles of extremophilic microbes in the anaerobic environments: Past, Present, and Future. CURRENT RESEARCH IN MICROBIAL SCIENCES 2022; 3:100146. [PMID: 35909618 PMCID: PMC9325894 DOI: 10.1016/j.crmicr.2022.100146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 06/11/2022] [Accepted: 06/13/2022] [Indexed: 12/03/2022] Open
Abstract
The inaccessible extreme environments harbor a large majority of anaerobic microbes which remain unknown. Anaerobic microbes are used in a variety of industrial applications. In the future, metagenomic-assisted techniques can be used to identify novel anaerobic microbes from the unexplored extreme environments. Genetic engineering can be used to enhance the efficiency of anaerobic microbes for various processes.
The genome of an organism is directly or indirectly correlated with its environment. Consequently, different microbes have evolved to survive and sustain themselves in a variety of environments, including unusual anaerobic environments. It is believed that their genetic material could have played an important role in the early evolution of their existence in the past. Presently, out of the uncountable number of microbes found in different ecosystems we have been able to discover only one percent of the total communities. A large majority of the microbial populations exists in the most unusual and extreme environments. For instance, many anaerobic bacteria are found in the gastrointestinal tract of humans, soil, and hydrothermal vents. The recent advancements in Metagenomics and Next Generation Sequencing technologies have improved the understanding of their roles in these environments. Presently, anaerobic bacteria are used in various industries associated with biofuels, fermentation, production of enzymes, vaccines, vitamins, and dairy products. This broad applicability brings focus to the significant contribution of their genomes in these functions. Although the anaerobic microbes have become an irreplaceable component of our lives, a major and important section of such anaerobic microbes still remain unexplored. Therefore, it can be said that unlocking the role of the microbial genomes of the anaerobes can be a noteworthy discovery not just for mankind but for the entire biosystem as well.
Collapse
Affiliation(s)
- Pratyusha Patidar
- School of Basic Sciences, Indian Institute of Technology (IIT) Mandi, HP, India
| | - Tulika Prakash
- School of Basic Sciences, Indian Institute of Technology (IIT) Mandi, HP, India
- Corresponding author.
| |
Collapse
|
21
|
Biodegradation of Alprazolam in Pharmaceutical Wastewater Using Mesoporous Nanoparticles-Adhered Pseudomonas stutzeri. MOLECULES (BASEL, SWITZERLAND) 2021; 27:molecules27010237. [PMID: 35011469 PMCID: PMC8746359 DOI: 10.3390/molecules27010237] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 12/18/2021] [Accepted: 12/21/2021] [Indexed: 12/02/2022]
Abstract
The release of pharmaceutical wastewaters in the environment is of great concern due to the presence of persistent organic pollutants with toxic effects on environment and human health. Treatment of these wastewaters with microorganisms has gained increasing attention, as they can efficiently biodegrade and remove contaminants from the aqueous environments. In this respect, bacterial immobilization with inorganic nanoparticles provides a number of advantages, in terms of ease of processing, increased concentration of the pollutant in proximity of the cell surface, and long-term reusability. In the present study, MCM-41 mesoporous silica nanoparticles (MSN) were immobilized on a selected bacterial strain to remove alprazolam, a persistent pharmaceutical compound, from contaminated water. First, biodegrading microorganisms were collected from pharmaceutical wastewater, and Pseudomonas stutzeri was isolated as a bacterial strain showing high ability to tolerate and consume alprazolam as the only source for carbon and energy. Then, the ability of MSN-adhered Pseudomonas stutzeri bacteria was assessed to biodegrade alprazolam using quantitative HPLC analysis. The results indicated that after 20 days in optimum conditions, MSN-adhered bacterial cells achieved 96% biodegradation efficiency in comparison to the 87% biodegradation ability of Pseudomonas stutzeri freely suspended cells. Kinetic study showed that the degradation process obeys a first order reaction. In addition, the kinetic constants for the MSN-adhered bacteria were higher than those of the bacteria alone.
Collapse
|
22
|
Bisht B, Imandi V, Pant S, Sen A. Solvent-Dependent Spectral Properties in Diverse Solvents, Light Harvesting and Antiviral Properties of Mono-Azo Dye (Direct Yellow-27): A Combined Experimental and Theoretical Study. JOURNAL OF COMPUTATIONAL BIOPHYSICS AND CHEMISTRY 2021. [DOI: 10.1142/s2737416521500368] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
In this paper, we have discussed for the first time a detailed electronic absorption study of the mono-azo dye Direct Yellow 27 [C[Formula: see text]H[Formula: see text]N4Na2O9S3] (DY-27) with five different homogeneous media by applying experimental and theoretical techniques along with some new characteristics of DY-27 in the field of solar cells as well as antiviral activities. A clear absorption band in the UV-visible region was observed, although the absorption maxima lie in the visible region. The electronic absorption transitions observed in our study were fully spin and symmetry allowed transitions with [Formula: see text]–[Formula: see text] character. Time-dependent density functional theory (TD-DFT) analysis has been done for understanding the electronic and the charge transfer performance. Moreover, the impacts of polar protic and polar aprotic solvents in the structural variation of DY-27 have been reported here. Further, applications of the dye in the field of solar cell, as well as antiviral activity, were performed using molecular modeling approaches. The dye exhibited a D–[Formula: see text]–A–A structure with a high light-harvesting efficiency (LHE) and good injection efficiency acts as an effective dye sensitized solar cell (DSSC). Molecular docking studies of the dye DY-27 performed with M-protease of the different corona viruses, MERS, SARS-CoV-1 and SARS-CoV-2 indicated comparable binding energies with the controlled inhibitors and best interactions are observed for the SARS-CoV-1.
Collapse
Affiliation(s)
- Babita Bisht
- Photophysics Laboratory, Department of Physics, Centre of Advance Study, DSB Campus, Kumaun University, Nainital 263002, India
| | - Venkataramana Imandi
- Center for Computational Biology and Bioinformatics School of Computational & Integrative Sciences (SCIS), Jawaharlal Nehru University, New Delhi, India
| | - Sanjay Pant
- Photophysics Laboratory, Department of Physics, Centre of Advance Study, DSB Campus, Kumaun University, Nainital 263002, India
| | - Anik Sen
- Department of Chemistry, GITAM Institute of Science, GITAM (Deemed to be University), Gandhi Nagar, Rushikonda, Visakhapatnam, Andhra Pradesh 530045, India
| |
Collapse
|
23
|
Degradation and Detoxification of Congo Red azo dye by Immobilized Laccase of Streptomyces sviceus. JOURNAL OF PURE AND APPLIED MICROBIOLOGY 2021. [DOI: 10.22207/jpam.15.2.41] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The discharge of textile effluents enriched with reactive azo dyes is of critical importance owing to inability of the dyes to degrade in waste water and their carcinogenic, mutagenic effects to various organisms. This study initiated based on the need to gaze into molecular mechanism of marine bacterial bioremediation process to develop strategies for the decolorization and detoxification of the synthetic azo dyes. The experimental work carried out to explore decolorization and degradation efficacy of laccase derived from marine actinobacteria, Streptomyces sviceus by choosing Congo red-21 as model azo dye. The extracellular production of laccase was confirmed with plate assay in medium supplemented with ABTS as substrate. Laccase was purified to homogeneity from 72hrs culture of Streptomyces sviceus by Fast performance liquid chromatography and the molecular size of laccase was noticed as 60 kDa. The purified laccase was immobilized with an efficiency of 82% by Calcium alginate method. The crude, purified and immobilized forms of the laccase enzyme was used to decolorize the Congo red-21. Crude laccase enzyme showed 69% of decolorization of Congo red-21 after 48h where as purified and immobilized laccase represented 78% and 92% of colour removal after 24 h respectively. Fourier-transform infrared spectroscopy, High Performance Liquid Chromatography and Gas chromatography–mass spectrometry were used to unravel the molecular mechanism of dye detoxification and also identify nontoxic products released from Congo Red-21 upon administration with immobilized laccase. Based on GC-MS data, it may deduce that immobilized laccase of Streptomyces sviceus cleaves the Congo red-21 dye followed by oxidative cleavage, desulfonation, deamination, demethylation process.
Collapse
|
24
|
Mohanty SS, Kumar A. Enhanced degradation of anthraquinone dyes by microbial monoculture and developed consortium through the production of specific enzymes. Sci Rep 2021; 11:7678. [PMID: 33828207 PMCID: PMC8027401 DOI: 10.1038/s41598-021-87227-6] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Accepted: 03/24/2021] [Indexed: 11/09/2022] Open
Abstract
The current study investigates the decolorization of Indanthrene Blue RS dye and the optimization of process parameters needed for effective decolorization by the bacterial consortium. The pure culture of strain TS8, PMS, and NCH has been isolated from the textile wastewater sample collected from local textile processing units outlet and dye contaminated soil from Odisha, India. A bacterial consortium-BP of Bacillus flexus TS8 (BF), Proteus mirabilis PMS (PM), and Pseudomonas aeruginosa NCH (PA) were developed. The physicochemical parameters were optimized to attain maximum decolorization efficacy. Degradation of Indanthrene Blue RS and the formation of metabolites were confirmed through UV-vis spectroscopy, FT-IR, and GC-MS analysis. The developed consortium-BP showed an enhanced decolorization of Indanthrene Blue RS dye with an Average decolorization rate of 11,088 µg h-1 within 9 h compared to the individual strains under aerobic conditions. The supplementation of agricultural residual wastes showed increased decolorization efficiency of consortium-BP. Higher reduction in TOC and COD removal (≥ 80%) determined the mineralization of Indanthrene Blue RS by consortium-BP. Significant induction of various oxidoreductive enzymes in consortium-BP compared to that of Individual strains indicates their involvement in the overall decolorization and degradation process, with the higher protein concentration in the intracellular enzymes. Studies on the phytotoxicity effect revealed the non-toxic nature of the degraded products formed on mineralization of Indanthrene Blue RS by consortium-BP. This study represents a new approach for enhanced biodegradation using consortium-BP in treating textile wastewaters containing anthraquinone dyes.
Collapse
Affiliation(s)
- Swati Sambita Mohanty
- Department of Chemical Engineering, National Institute of Technology Rourkela, Rourkela, Odisha, 769008, India.
| | - Arvind Kumar
- Department of Chemical Engineering, National Institute of Technology Rourkela, Rourkela, Odisha, 769008, India
| |
Collapse
|
25
|
Liu N, Xie X, Jiang H, Zheng X, Zhang Q, Sun P. Variation and comparison of biotoxicity during typical biological treatment of dyeing wastewater. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2021; 56:492-499. [PMID: 33678149 DOI: 10.1080/10934529.2021.1893070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 02/04/2021] [Accepted: 02/08/2021] [Indexed: 06/12/2023]
Abstract
In present study, dyeing wastewater samples were collected from three typical dyeing wastewater treatment plants in Wujiang, Shengze and Shanghai, China. Physicochemical properties and biotoxicity indicators (luminescent bacteria acute toxicity and umu genotoxicity) were tested and the relationships among them were analyzed. The results revealed that two biotoxicity indicators varied significantly among different treatment units of three plants. After treatment by plant A, luminescent bacteria acute toxicity of dyeing wastewater reduced effectively, while umu genotoxicity increased significantly. Two biotoxicity indicators exhibited decrease and increase trends during the treatment processes of plant B and plant C, respectively. Correlation analysis indicated that there was little correlation among biotoxicity indicators and physicochemical properties, meanwhile two kinds of biotoxicity indicators were relatively independent. Therefore, it was recommended that comprehensive evaluation of dyeing wastewater toxicity needs the combination of various biotoxicity indicators, and the relationship among biotoxicity indicators and physicochemical properties of dyeing wastewater should be established individually. The results of this study would offer a general understanding and evaluation of biotoxicity during actual dyeing wastewater treatment processes and provide database for toxicity reduction and management of dyeing wastewater.
Collapse
Affiliation(s)
- Na Liu
- School of Environment and Surveying Engineering, Suzhou University, Anhui, China
| | - Xuehui Xie
- College of Environmental Science and Engineering, Donghua University, Statle Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry, Donghua University, Shanghai, China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai, China
| | - Hong Jiang
- Anji Guo Qian Environmental Technology Co. Ltd., Zhejiang, China
| | - Xiulin Zheng
- College of Environmental Science and Engineering, Donghua University, Statle Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry, Donghua University, Shanghai, China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai, China
| | - Qingyun Zhang
- College of Environmental Science and Engineering, Donghua University, Statle Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry, Donghua University, Shanghai, China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai, China
| | - Peng Sun
- School of Environment and Surveying Engineering, Suzhou University, Anhui, China
| |
Collapse
|
26
|
Wang Y, Xu B, Ning S, Shi S, Tan L. Magnetically stimulated azo dye biodegradation by a newly isolated osmo-tolerant Candida tropicalis A1 and transcriptomic responses. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 209:111791. [PMID: 33360211 DOI: 10.1016/j.ecoenv.2020.111791] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Revised: 12/02/2020] [Accepted: 12/08/2020] [Indexed: 06/12/2023]
Abstract
A recently isolated osmo-tolerant yeast Candida tropicalis A1, which could decolorize various azo dyes under high-salinity conditions, was systematically characterized in the present study. Stimulating dye-decolorization effectiveness and osmo-tolerance of the yeast by static magnetic field (SMF) was investigated and transcriptomic responses of the yeast to SMF was analyzed to propose possible mechanisms. The results demonstrated that the yeast A1 effectively decolorized (≥ 97.50% within 12 h) and detoxified (from high toxicity to low toxicity within 24 h) 70 mg/L Acid Red B (ARB) under the optimized conditions through a series of steps including naphthalene-amidine bond cleavage, reductive or oxidative deamination/desulfurization, open-loop of hydroxy-substituted naphthalene or benzene and TCA cycle. Moreover, dye decolorization performance and osmo-tolerance of the yeast A1 were further improved by 24.6 mT SMF. Genes encoding high-affinity hexose/glucose transporter proteins and NADH-ubiquinone oxidoreductase were up-regulated by 24.6 mT SMF, which might be responsible for the increase of dye decolorization. Significant up-regulation of glycerol-3-phosphate dehydrogenase and cell wall protein RHD3 suggested that osmo-tolerance was enhanced by 24.6 mT SMF through promoting production and intracellular accumulation of glycerol as compatible solute, as well as regulation of cell wall component. In conclusion, 24.6 mT SMF led to the up-regulation of related genes resulting in enhanced dye biodegradation efficiency and osmo-tolerance of the yeast A1.
Collapse
Affiliation(s)
- Yumeng Wang
- School of Life Sciences, Liaoning Normal University, Key Laboratory of Plant Biotechnology of Liaoning Province, Dalian, Liaoning 116081, PR China
| | - Bingwen Xu
- Institute of Agricultural Products and Aquatic Products Inspection and Testing, Dalian Center for Certification and Food and Drug Control, Dalian 116037, PR China
| | - Shuxiang Ning
- School of Life Sciences, Liaoning Normal University, Key Laboratory of Plant Biotechnology of Liaoning Province, Dalian, Liaoning 116081, PR China
| | - Shengnan Shi
- School of Life Sciences, Liaoning Normal University, Key Laboratory of Plant Biotechnology of Liaoning Province, Dalian, Liaoning 116081, PR China
| | - Liang Tan
- School of Life Sciences, Liaoning Normal University, Key Laboratory of Plant Biotechnology of Liaoning Province, Dalian, Liaoning 116081, PR China.
| |
Collapse
|
27
|
Goud BS, Cha HL, Koyyada G, Kim JH. Augmented Biodegradation of Textile Azo Dye Effluents by Plant Endophytes: A Sustainable, Eco-Friendly Alternative. Curr Microbiol 2020; 77:3240-3255. [PMID: 32951066 DOI: 10.1007/s00284-020-02202-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Accepted: 09/04/2020] [Indexed: 01/02/2023]
Abstract
Textile industry consumes a large proportion of available water and releases huge amounts of toxic azo dye effluents, leading to an inevitable situation of acute environmental pollution that has been a significant threat to mankind. Decolorization or detoxification of harmful azo dyes has become a global priority to overcome the disastrous consequences and salvage the ecosystem. Biodegradation of textile azo dyes by endophytes stands to be a lucrative and viable alternative over conventional physico-chemical methods, owing to their eco-friendliness, cost-competitive and non-toxic nature. Especially, plant endophytic microbes exhibit promising biodegradation potential which has wired up the effective removal of textile azo dyes, attributing to their ability to produce dye degrading enzymes, laccases, peroxidases and azoreductases. Although both bacterial and fungal endophytes have been tried for azo dye degradation, endophytic fungi find broader application over bacteria. Despite of the advancements made in microbe-mediated biodegradation, there is still a need to fill the gap in lab to in situ translation of biodegradation research. This review concisely accentuates the xenobiotics of textile azo dyes and microbial mechanisms of biodegradation of textile azo dyes, positing plant endophytic community, especially bacterial and fungal endophytes as the potential dye degraders, highlighting currently reported dye degrading endophytic species.
Collapse
Affiliation(s)
- Burragoni Sravanthi Goud
- Department of Biotechnology, Yeungnam University, 214-1, Dae-hakro 280, Gyeongsan, 712-749, Gyeongbuk, Korea.
- Department of Chemical Engineering, Yeungnam University, 214-1, Dae-hakro 280, Gyeongsan, 712-749, Gyeongbuk, Korea.
| | - Ha Lim Cha
- Department of Chemical Engineering, Yeungnam University, 214-1, Dae-hakro 280, Gyeongsan, 712-749, Gyeongbuk, Korea
| | - Ganesh Koyyada
- Department of Chemical Engineering, Yeungnam University, 214-1, Dae-hakro 280, Gyeongsan, 712-749, Gyeongbuk, Korea.
| | - Jae Hong Kim
- Department of Chemical Engineering, Yeungnam University, 214-1, Dae-hakro 280, Gyeongsan, 712-749, Gyeongbuk, Korea.
| |
Collapse
|
28
|
Ismail M, Akhtar K, Khan MI, Kamal T, Khan MA, M Asiri A, Seo J, Khan SB. Pollution, Toxicity and Carcinogenicity of Organic Dyes and their Catalytic Bio-Remediation. Curr Pharm Des 2020; 25:3645-3663. [PMID: 31656147 DOI: 10.2174/1381612825666191021142026] [Citation(s) in RCA: 130] [Impact Index Per Article: 32.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Accepted: 10/15/2019] [Indexed: 12/19/2022]
Abstract
Water pollution due to waste effluents of the textile industry is seriously causing various health problems in humans. Water pollution with pathogenic bacteria, especially Escherichia coli (E. coli) and other microbes is due to the mixing of fecal material with drinking water, industrial and domestic sewage, pasture and agricultural runoff. Among the chemical pollutants, organic dyes due to toxic nature, are one of the major contaminants of industrial wastewater. Adequate sanitation services and drinking quality water would eliminate 200 million cases of diarrhea, which results in 2.1 million less deaths caused by diarrheal disease due to E. coli each year. Nanotechnology is an excellent platform as compared to conventional treatment methods of water treatment and remediation from microorganisms and organic dyes. In the current study, toxicity and carcinogenicity of the organic dyes have been studied as well as the remediation/inactivation of dyes and microorganism has been discussed. Remediation by biological, physical and chemical methods has been reviewed critically. A physical process like adsorption is cost-effective, but can't degrade dyes. Biological methods were considered to be ecofriendly and cost-effective. Microbiological degradation of dyes is cost-effective, eco-friendly and alternative to the chemical reduction. Besides, certain enzymes especially horseradish peroxidase are used as versatile catalysts in a number of industrial processes. Moreover, this document has been prepared by gathering recent research works related to the dyes and microbial pollution elimination from water sources by using heterogeneous photocatalysts, metal nanoparticles catalysts, metal oxides and enzymes.
Collapse
Affiliation(s)
- Muhammad Ismail
- Department of Chemistry, Kohat University of Science and Technology, Kohat-26000, Khyber Pakhtunkhwa, Pakistan
| | - Kalsoom Akhtar
- Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
| | - M I Khan
- Department of Chemistry, Kohat University of Science and Technology, Kohat-26000, Khyber Pakhtunkhwa, Pakistan
| | - Tahseen Kamal
- Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
| | - Murad A Khan
- Department of Chemistry, Kohat University of Science and Technology, Kohat-26000, Khyber Pakhtunkhwa, Pakistan
| | - Abdullah M Asiri
- Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia.,Center of Excellence for Advanced Materials Research, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
| | - Jongchul Seo
- Department of Packaging, Yonsei University, 1 Yonseidae-gil, Wonju, Kangwon-do 26493, South Korea
| | - Sher B Khan
- Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia.,Center of Excellence for Advanced Materials Research, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
| |
Collapse
|
29
|
Ganguly D, Chandra Santra R, Mazumdar S, Saha A, Karmakar P, Das S. Radioprotection of thymine and calf thymus DNA by an azo compound: mechanism of action followed by DPPH radical quenching & ROS depletion in WI 38 lung fibroblast cells. Heliyon 2020; 6:e04036. [PMID: 32490245 PMCID: PMC7262411 DOI: 10.1016/j.heliyon.2020.e04036] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Revised: 04/26/2020] [Accepted: 05/18/2020] [Indexed: 11/19/2022] Open
Abstract
Purpose To explain the observed radio-protection properties of an azo compound, 2-(2-hydroxyphenylazo)-indole-3∕-acetic acid (HPIA). Materials and methods Mechanism of radioprotection by HPIA was attempted using the stable free radical 2, 2-diphenyl-1-picrylhydrazyl (DPPH) using UV-Vis and electron paramagnetic resonance (EPR) spectroscopy. The radical destroying ability of HPIA was studied by depletion of reactive oxygen species (ROS) in WI 38 lung fibroblast cells. Results & Discussion Studies indicate HPIA interacts with radical intermediates formed in solution following irradiation by 60Co γ-rays. As a result, reactive radical intermediates do not cause any damage on chosen substrates like thymine or calf thymus DNA when irradiated in presence of HPIA. The study showed that reactive intermediates not only react with HPIA but that the kinetics of their reaction is definitely faster than their interaction either with thymine or with DNA. Had this not been the case, much more damage would have been observed on chosen substrates following irradiation with 60Co γ-rays, in the presence of HPIA than actually observed in experiments, particularly those that were performed in a relatively high dose. Experiments reveal radiation induced-damage caused to thymine in presence of HPIA was ~ 136 to ~ 132times that caused in its absence under different conditions indicating the radio-protection properties of HPIA. In case of calf thymus DNA, damage in presence of HPIA was much lower than in its absence. A fluorometric microplate assay for depletion of ROS by detecting the oxidation of 2′,7′-dichlorofluorescin-diacetate (DCF-DA) into the highly fluorescent compound 2′,7′ dichlorofluorescein (DCF) indicated HPIA brought about a considerable check on ROS-mediated damage to cells by scavenging them right away. Conclusion The study indicates HPIA may be an antioxidant supplement during radiotherapy.
Collapse
Affiliation(s)
- Durba Ganguly
- Department of Chemistry (Inorganic Section), Jadavpur University, Kolkata 700032, India
| | - Ramesh Chandra Santra
- Department of Chemistry (Inorganic Section), Jadavpur University, Kolkata 700032, India
| | - Swagata Mazumdar
- Department of Life Science and Biotechnology, Jadavpur University, Kolkata 700032, India
| | - Abhijit Saha
- UGC-DAE CSR, Kolkata Centre, Sector III, LB- 8, Bidhan Nagar, Kolkata 700 098, India
| | - Parimal Karmakar
- Department of Life Science and Biotechnology, Jadavpur University, Kolkata 700032, India
| | - Saurabh Das
- Department of Chemistry (Inorganic Section), Jadavpur University, Kolkata 700032, India
- Corresponding author.
| |
Collapse
|
30
|
Flavin-Conjugated Iron Oxide Nanoparticles as Enzyme-Inspired Photocatalysts for Azo Dye Degradation. Catalysts 2020. [DOI: 10.3390/catal10030324] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
In this work, a new photocatalytic system consisting of iron oxide nanoparticles (IONPs), coated with a catechol-flavin conjugate (DAFL), is synthesized and explored for use in water remediation. In order to test the efficiency of the catalyst, the photodegradation of amaranth (AMT), an azo dye water pollutant, was performed under aerobic and anaerobic conditions, using either ethylenediaminetetraacetic acid (EDTA) or 2-(N-morpholino)ethanesulfonic acid (MES) as electron donors. Depending on the conditions, either dye photoreduction or photooxidation were observed, indicating that flavin-coated iron-oxide nanoparticles can be used as a versatile enzyme-inspired photocatalysts.
Collapse
|
31
|
Çanakçı D. Synthesis, Spectroscopic, Thermodynamics and Kinetics Analysis Study of Novel Polymers Containing Various Azo Chromophore. Sci Rep 2020; 10:477. [PMID: 31949212 PMCID: PMC6965104 DOI: 10.1038/s41598-019-57264-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Accepted: 12/20/2019] [Indexed: 11/09/2022] Open
Abstract
Two novel polymers containing azo and ether groups were synthesized by oxidative polycondensation in an aqueous alkaline medium by NaOCI oxidants. The azo dye monomers that were polymerized were synthesized by diazotization of 2-amino-4-chlorophenyl phenyl ether and coupling reaction with 2,7-dihydroxynaphthalene and 1,3-benzenediol. Structures of the synthesized compounds were characterized by spectroscopic studies such as FT-IR, UV-vis, 1H-NMR. Gel permeation chromatography was used to evaluate the molecular weight and molecular weight distribution of the azo polymers. Furthermore, the surface morphology of the azo monomers and polymers were scrutinized by using scanning electron microscope. To investigate the effect of solvent on absorption, the electronic absorption spectra of the synthesized compounds were measured in six solvents with different polarity. The thermal behaviors of the monomers and polymers were identified by the TG, DTG and DTA techniques. In addition, the Coats-Redfern, Horowitz-Metzger and Broido methods for the determination of the kinetic parameters were used in the kinetic analysis of thermal decomposition of the compounds.
Collapse
Affiliation(s)
- Dilek Çanakçı
- Department of Chemistry, Vocational School of Technical Sciences, Adıyaman University, 02040, Adıyaman, Turkey.
| |
Collapse
|
32
|
Biochemical characterization of a novel azoreductase from Streptomyces sp.: Application in eco-friendly decolorization of azo dye wastewater. Int J Biol Macromol 2019; 140:1037-1046. [PMID: 31449862 DOI: 10.1016/j.ijbiomac.2019.08.196] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 08/21/2019] [Accepted: 08/22/2019] [Indexed: 01/07/2023]
Abstract
Azo dyes are the most widely applied chemical dyes that have also raised great concerns for environmental contamination and human health issues. There has been a growing interest in discovering bioremediation methods to degrade azo dyes for environmental and economic purposes. Azoreductases are key enzymes evolved in nature capable of degrading azo dyes. The current work reports the identification, expression, and properties of a novel azoreductase (AzoRed2) from Streptomyces sp. S27 which shows an excellent stability against pH change and organic solvents. To overcome the requirements of coenzyme while degrading azo dyes, we introduced a coenzyme regeneration enzyme, Bacillus subtilis glucose 1-dehydrogenase (BsGDH), to construct a recycling system in living cells. The whole-cell biocatalyst containing AzoRed2 and BsGDH was used to degrade a representative azo dye methyl red. The degradation rate of methyl red was up to 99% in 120 min with high substrate concentration (250 μM) and no external coenzyme added. The degradation rate was still 98% in the third batch trial. To sum up, a novel azoreductase with good properties was found, which was applied to construct whole-cell biocatalyst. Both the enzymes and whole-cell biocatalysts are good candidates for the industrial wastewater treatment and environmental restoration.
Collapse
|
33
|
Imron MF, Kurniawan SB, Soegianto A, Wahyudianto FE. Phytoremediation of methylene blue using duckweed ( Lemna minor). Heliyon 2019; 5:e02206. [PMID: 31406944 PMCID: PMC6684478 DOI: 10.1016/j.heliyon.2019.e02206] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2019] [Revised: 06/25/2019] [Accepted: 07/30/2019] [Indexed: 10/31/2022] Open
Abstract
Azo dyes are the largest class of synthetic dyes and are utilized in several industries. Effluents containing dyes are released to the environment and pose harm to humans who might be exposed to these contaminants. This study aims to investigate the removal of methylene blue (MB) dye using duckweed (Lemna minor). L. minor (2 g) was exposed into 50 mg/L of MB dyes for 24 h. The absorbance values were measured at 0, 0.5, 1, 2, 3, 4, 5, 6, and 24 h with a maximum wavelength of 665 nm. The dye removal percentage and relative growth rate of L. minor during exposure to MB were observed. The removal percentage was 80.56 ± 0.44% for 24 h with a relative growth rate of 0.006/h. L. minor has potential as a phytoremediation agent to remove dyes from wastewater.
Collapse
Affiliation(s)
- Muhammad Fauzul Imron
- Study Program of Environmental Engineering, Department of Biology, Faculty of Science and Technology, Universitas Airlangga, Kampus C UNAIR, Jalan Mulyorejo, Surabaya, 60115, Indonesia
| | - Setyo Budi Kurniawan
- Study Program of Waste Treatment Engineering, Department of Marine Engineering, Politeknik Perkapalan Negeri Surabaya, Jalan Teknik Kimia, Kampus ITS Keputih, Sukolilo, Surabaya, 60111, Indonesia
| | - Agoes Soegianto
- Study Program of Environmental Engineering, Department of Biology, Faculty of Science and Technology, Universitas Airlangga, Kampus C UNAIR, Jalan Mulyorejo, Surabaya, 60115, Indonesia
| | - Febri Eko Wahyudianto
- Study Program of Environmental Engineering, Department of Biology, Faculty of Science and Technology, Universitas Airlangga, Kampus C UNAIR, Jalan Mulyorejo, Surabaya, 60115, Indonesia
| |
Collapse
|
34
|
Wu D, Duan R, Geng F, Hu X, Gan N, Li H. Comparative analysis of the interaction of mono-, dis-, and tris-azo food dyes with egg white lysozyme: A combined spectroscopic and computational simulation approach. Food Chem 2019; 284:180-187. [DOI: 10.1016/j.foodchem.2019.01.115] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 12/29/2018] [Accepted: 01/16/2019] [Indexed: 12/17/2022]
|
35
|
Suzuki H. Remarkable diversification of bacterial azoreductases: primary sequences, structures, substrates, physiological roles, and biotechnological applications. Appl Microbiol Biotechnol 2019; 103:3965-3978. [PMID: 30941462 DOI: 10.1007/s00253-019-09775-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 03/13/2019] [Accepted: 03/15/2019] [Indexed: 12/12/2022]
Abstract
Azoreductases reductively cleave azo linkages by using NAD(P)H as an electron donor. The enzymes are widely found in bacteria and act on numerous azo dyes, which allow various unique applications. This review describes primary amino acid sequences, structures, substrates, physiological roles, and biotechnological applications of bacterial azoreductases to discuss their remarkable diversification. According to primary sequences, azoreductases were classified phylogenetically into four main clades. Most members of clades I-III are flavoproteins, whereas clade IV members include flavin-free azoreductases. Clades I and II prefer NADPH and NADH, respectively, as electron donors, whereas other members generally use both. Several enzymes formed no clades; moreover, some bacteria produce azoreductases with longer primary structures than those hitherto identified, which implies further diversification of bacterial azoreductases. The crystal structures commonly reveal the Rossmann folds; however, ternary structures are moderately varied with different quaternary conformation. Although physiological roles are obscure, several azoreductases have been shown to act on metabolites such as flavins, quinones, and metal ions more efficiently than on azo dyes. Considering that many homologs exclusively act on these metabolites, it is possible that azoreductases are actually side activities of versatile reductases that act on various substrates with different specificities. In parallel, this idea raises the possibility that homologous enzymes, even if these are already defined as other types of reductases, widely harbor azoreductase activities. Although azoreductases for which their genes have been identified are not abundant, it may be simple to identify azoreductases of biotechnological importance that have novel substrate specificities.
Collapse
Affiliation(s)
- Hirokazu Suzuki
- Faculty of Engineering, Tottori University, 4-101 Koyama-Minami, Tottori, 680-8552, Japan. .,Center for Research on Green Sustainable Chemistry, Tottori University, 4-101 Koyama-Minami, Tottori, 680-8552, Japan.
| |
Collapse
|
36
|
Maliyappa M, Keshavayya J, Mallikarjuna N, Murali Krishna P, Shivakumara N, Sandeep T, Sailaja K, Nazrulla MA. Synthesis, characterization, pharmacological and computational studies of 4, 5, 6, 7-tetrahydro-1, 3-benzothiazole incorporated azo dyes. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.11.041] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
37
|
Yang Y, Zhang J, Yin J, Yang Y. Fast Simultaneous Determination of Eight Sudan Dyes in Chili Oil by Ultra-High-Performance Supercritical Fluid Chromatography. JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY 2019; 2019:3731028. [PMID: 30733886 PMCID: PMC6348864 DOI: 10.1155/2019/3731028] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Accepted: 12/18/2018] [Indexed: 06/09/2023]
Abstract
A rapid and simple ultra-high-performance supercritical fluid chromatography (UHPSFC) with photodiode array (PDA) method was developed and validated for simultaneous determination of eight Sudan dyes in chili oil. In particular, a pair of isomer, Sudan red B and Sudan IV, was included in the analysis. After being diluted with dichloromethane, the analytes were separated on an Acquity UPC2 HSS C18 SB column with gradient elution using CO2 as the mobile phase and acetonitrile/methanol (v/v, 45/55, containing 0.1% formic acid) as the organic modifier. Analytes were quantified by external calibration curves over ranges of 0.5-50 mg/L, with correlation coefficients above 0.999. The method gave recoveries of the target compounds (spiked at levels of 1, 5, and 25 mg/kg) ranging from 82.6 to 108.3%, with intraday and interday relative standard deviations of less than 8.0% and 8.6%, respectively. The limits of detection (LODs) and the limits of quantification (LOQs) for eight dyes were from 0.10 to 0.30 mg/kg and 0.30-1.00 mg/kg, respectively. This method was applied for the analysis of chili oil samples collected from the supermarket in Beijing. This validated that the UHPSFC-PDA method provides a useful strategy for the simultaneous determination of Sudan dyes in chili oil for routine analysis.
Collapse
Affiliation(s)
- Yunjia Yang
- Beijing Key Laboratory of Diagnostic and Traceability Technologies for Food Poisoning, Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - Jing Zhang
- Beijing Key Laboratory of Diagnostic and Traceability Technologies for Food Poisoning, Beijing Center for Disease Prevention and Control, Beijing 100013, China
- School of Public Health, Capital Medical University, Beijing 100069, China
| | - Jie Yin
- Beijing Key Laboratory of Diagnostic and Traceability Technologies for Food Poisoning, Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - Yi Yang
- Beijing Key Laboratory of Diagnostic and Traceability Technologies for Food Poisoning, Beijing Center for Disease Prevention and Control, Beijing 100013, China
- School of Public Health, Capital Medical University, Beijing 100069, China
| |
Collapse
|
38
|
Ahmad M, Pataczek L, Hilger TH, Zahir ZA, Hussain A, Rasche F, Schafleitner R, Solberg SØ. Perspectives of Microbial Inoculation for Sustainable Development and Environmental Management. Front Microbiol 2018; 9:2992. [PMID: 30568644 PMCID: PMC6289982 DOI: 10.3389/fmicb.2018.02992] [Citation(s) in RCA: 77] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Accepted: 11/19/2018] [Indexed: 11/13/2022] Open
Abstract
How to sustainably feed a growing global population is a question still without an answer. Particularly farmers, to increase production, tend to apply more fertilizers and pesticides, a trend especially predominant in developing countries. Another challenge is that industrialization and other human activities produce pollutants, which accumulate in soils or aquatic environments, contaminating them. Not only is human well-being at risk, but also environmental health. Currently, recycling, land-filling, incineration and pyrolysis are being used to reduce the concentration of toxic pollutants from contaminated sites, but too have adverse effects on the environment, producing even more resistant and highly toxic intermediate compounds. Moreover, these methods are expensive, and are difficult to execute for soil, water, and air decontamination. Alternatively, green technologies are currently being developed to degrade toxic pollutants. This review provides an overview of current research on microbial inoculation as a way to either replace or reduce the use of agrochemicals and clean environments heavily affected by pollution. Microorganism-based inoculants that enhance nutrient uptake, promote crop growth, or protect plants from pests and diseases can replace agrochemicals in food production. Several examples of how biofertilizers and biopesticides enhance crop production are discussed. Plant roots can be colonized by a variety of favorable species and genera that promote plant growth. Microbial interventions can also be used to clean contaminated sites from accumulated pesticides, heavy metals, polyaromatic hydrocarbons, and other industrial effluents. The potential of and key processes used by microorganisms for sustainable development and environmental management are discussed in this review, followed by their future prospects.
Collapse
Affiliation(s)
- Maqshoof Ahmad
- Department of Soil Science, University College of Agriculture and Environmental Sciences, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Lisa Pataczek
- Institute of Agricultural Sciences in the Tropics (Hans-Ruthenberg-Institute), University of Hohenheim, Stuttgart, Germany
| | - Thomas H. Hilger
- Institute of Agricultural Sciences in the Tropics (Hans-Ruthenberg-Institute), University of Hohenheim, Stuttgart, Germany
| | - Zahir Ahmad Zahir
- Institute of Soil and Environmental Sciences, University of Agriculture Faisalabad, Faisalabad, Pakistan
| | - Azhar Hussain
- Department of Soil Science, University College of Agriculture and Environmental Sciences, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Frank Rasche
- Institute of Agricultural Sciences in the Tropics (Hans-Ruthenberg-Institute), University of Hohenheim, Stuttgart, Germany
| | | | - Svein Ø. Solberg
- World Vegetable Center, Tainan, China
- Inland Norway University of Applied Sciences, Elverum, Norway
| |
Collapse
|
39
|
Şener İ, Şener N, Gür M. Synthesis, structural analysis, and absorption properties of disperse benzothiazol-derivative mono-azo dyes. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.04.052] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
40
|
Ismail M, Khan M, Khan SB, Akhtar K, Khan MA, Asiri AM. Catalytic reduction of picric acid, nitrophenols and organic azo dyes via green synthesized plant supported Ag nanoparticles. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.07.030] [Citation(s) in RCA: 89] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
41
|
Deb T, Ganguly D, Sen S, Giri P, Dhar P, Das S. Modification of the toxicity of an azo compound through complex formation help target bacterial strains. J CHEM SCI 2018. [DOI: 10.1007/s12039-018-1510-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
|
42
|
Decolorization and detoxification of textile dyes using a versatile Streptomyces laccase-natural mediator system. Saudi J Biol Sci 2018; 26:913-920. [PMID: 31303819 PMCID: PMC6600735 DOI: 10.1016/j.sjbs.2018.05.020] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Revised: 05/08/2018] [Accepted: 05/17/2018] [Indexed: 11/24/2022] Open
Abstract
Currently, there is increasing interest in assessing the potential of bacterial laccases for industrial and environmental applications especially in harsh conditions. The environmental impact of the textile industry requires novel and effective technologies to mitigate the presence of dyes in wastewaters before discharging into the environment. Dyes usually remain stable in the presence of a variety of chemicals, light and are recalcitrant to microbial degradation. Among available technologies the biological treatments offer environmentally friendly strategies for decolorizing and detoxifying these compounds. The recent discovery of versatile laccases in streptomycetes opens up new opportunities for their commercial application. The aim of this study is to assess the potential of a novel bacterial laccase SilA produced by Streptomyces ipomoeae CECT 3341 active over wide temperature and pH ranges for use as an eco-friendly, biological treatment for the degradation of textile dyes. Insights into the enhancement of the oxidative action of this enzyme through the use of natural redox mediators are presented together with an assessment of the potential toxicity of the degradation products. Our results confirm that the combination of the laccase and natural mediators such as acetosyringone and methyl syringate enhanced the decolorization and detoxification of a variety of textile dyes up to sixfold and 20-fold, respectively. Mediator concentration was found to have a significant effect (p < 0.05) on dye decolorization at 60 °C; thus, the decolorization of Acid Orange 63 increased from 6 to 70-fold when the mediator concentration was increased from 0.1 to 0.5 mM. Further, the toxicity of tartrazine decreased 36-fold when the SilA-MeS system was used to decolorize the dye. The thermal properties of the SilA coupled with the stability of SilA at high pH suggest a potential commercial application for use in the decolorization of textile wastewaters which generally are performed at high temperature (>55 °C) and salinity and neutral pH, conditions which are unfavourable for conventional fungal laccases.
Collapse
|
43
|
Fabryová A, Kostovčík M, Díez-Méndez A, Jiménez-Gómez A, Celador-Lera L, Saati-Santamaría Z, Sechovcová H, Menéndez E, Kolařik M, García-Fraile P. On the bright side of a forest pest-the metabolic potential of bark beetles' bacterial associates. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 619-620:9-17. [PMID: 29136536 DOI: 10.1016/j.scitotenv.2017.11.074] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Revised: 11/07/2017] [Accepted: 11/07/2017] [Indexed: 06/07/2023]
Abstract
Bark beetles reproduce and overwinter under the bark of trees, and are associated with bacteria that may influence the fitness of their hosts. As regard the aim of this study was to test the metabolic potential of bacterial strains, isolated from the bark beetle species Cryphalus piceae, Ips typographus and Pityophthorus pityophthorus and collected in the Czech Republic from fir, spruce and pine trees, respectively, to degrade plant cell compounds. The bacterial strains were identified as belonging to the genera Curtobacterium, Erwinia, Pantoea, Pseudomonas, Rahnella, Staphylococcus, and Yersinia. Several activities related to the degradation of lignocellulosic materials, such as cellulose, xylan and starch, were found. Moreover, the genomes of three of these strains were sequenced and analyzed, and the presence of the enzymatic machinery required for biomass hydrolysis was discovered. This finding supports the idea that bacteria aid in the provision of nutrients to the beetle from the hydrolysis of tree compounds, results that are relevant for studying the ecological implication of bacterial strains in the bark beetle life cycle. In addition, the activities found in association with the bacterial strains could be useful in biotechnological processes, such as the production of biofuels from biomass, colorant degradation, in the textile industry and for wastewater treatments. Furthermore, the gene sequences of the lignocellulolytic enzymes found within the genomes serve as a basis for future studies regarding the potential application of these bacteria, and their metabolic machinery, in processes such as biomass hydrolysis and bioremediation.
Collapse
Affiliation(s)
- Anna Fabryová
- Microbiology Institute, Academy of Science of the Czech Republic, Prague, Czech Republic
| | - Martin Kostovčík
- Microbiology Institute, Academy of Science of the Czech Republic, Prague, Czech Republic
| | - Alexandra Díez-Méndez
- Microbiology and Genetics Department, University of Salamanca, Salamanca, Spain; Associated Unit USAL-CSIC (IRNASA), Salamanca, Spain
| | - Alejandro Jiménez-Gómez
- Microbiology and Genetics Department, University of Salamanca, Salamanca, Spain; Associated Unit USAL-CSIC (IRNASA), Salamanca, Spain
| | - Lorena Celador-Lera
- Microbiology and Genetics Department, University of Salamanca, Salamanca, Spain; Associated Unit USAL-CSIC (IRNASA), Salamanca, Spain
| | | | - Hana Sechovcová
- Institute of Animal Physiology and Genetics, Academy of Science of the Czech Republic, Prague, Czech Republic
| | - Esther Menéndez
- Microbiology and Genetics Department, University of Salamanca, Salamanca, Spain; Associated Unit USAL-CSIC (IRNASA), Salamanca, Spain
| | - Miroslav Kolařik
- Microbiology Institute, Academy of Science of the Czech Republic, Prague, Czech Republic
| | - Paula García-Fraile
- Microbiology Institute, Academy of Science of the Czech Republic, Prague, Czech Republic.
| |
Collapse
|
44
|
Sun J, Kweon O, Jin J, He GX, Li X, Cerniglia CE, Chen H. Mutation network-based understanding of pleiotropic and epistatic mutational behavior of Enterococcus faecalis FMN-dependent azoreductase. Biochem Biophys Rep 2017; 12:240-244. [PMID: 29214224 PMCID: PMC5704035 DOI: 10.1016/j.bbrep.2017.10.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Accepted: 10/30/2017] [Indexed: 11/15/2022] Open
Abstract
We previously identified a highly active homodimeric FMN-dependent NADH-preferred azoreductase (AzoA) from Enterococcus faecalis, which cleaves the azo bonds (R-N˭N-R) of diverse azo dyes, and determined its crystal structure. The preliminary network-based mutational analysis suggested that the two residues, Arg-21 and Asn-121, have an apparent mutational potential for fine-tuning of AzoA, based on their beneficial pleiotropic feedbacks. However, epistasis between the two promising mutational spots in AzoA has not been obtained in terms of substrate binding and azoreductase activity. In this study, we further quantified, visualized, and described the pleiotropic and/or epistatic behavior of six single or double mutations at the positions, Arg-21 and Asn-121, as a further research endeavor for beneficial fine-tuning of AzoA. Based on this network-based mutational analysis, we showed that pleiotropy and epistasis are common, sensitive, and complex mutational behaviors, depending mainly on the structural and functional responsibility and the physicochemical properties of the residue(s) in AzoA.
Collapse
Affiliation(s)
- Jinyan Sun
- Division of Microbiology, National Center for Toxicological Research, US Food and Drug Administration, Jefferson, AR 72079, USA
- State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan 430071, China
| | - Ohgew Kweon
- Division of Microbiology, National Center for Toxicological Research, US Food and Drug Administration, Jefferson, AR 72079, USA
| | - Jinshan Jin
- Division of Microbiology, National Center for Toxicological Research, US Food and Drug Administration, Jefferson, AR 72079, USA
| | - Gui-Xin He
- Department of Biomedical and Nutritional Sciences, University of Massachusetts Lowell, Lowell, MA 01854, USA
| | - Xiyu Li
- Department of Biomedical and Nutritional Sciences, University of Massachusetts Lowell, Lowell, MA 01854, USA
| | - Carl E. Cerniglia
- Division of Microbiology, National Center for Toxicological Research, US Food and Drug Administration, Jefferson, AR 72079, USA
| | - Huizhong Chen
- Division of Microbiology, National Center for Toxicological Research, US Food and Drug Administration, Jefferson, AR 72079, USA
| |
Collapse
|
45
|
Gadaleta D, Porta N, Vrontaki E, Manganelli S, Manganaro A, Sello G, Honma M, Benfenati E. Integrating computational methods to predict mutagenicity of aromatic azo compounds. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART C, ENVIRONMENTAL CARCINOGENESIS & ECOTOXICOLOGY REVIEWS 2017; 35:239-257. [PMID: 29027864 DOI: 10.1080/10590501.2017.1391521] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Azo dyes have several industrial uses. However, these azo dyes and their degradation products showed mutagenicity, inducing damage in environmental and human systems. Computational methods are proposed as cheap and rapid alternatives to predict the toxicity of azo dyes. A benchmark dataset of Ames data for 354 azo dyes was employed to develop three classification strategies using knowledge-based methods and docking simulations. Results were compared and integrated with three models from the literature, developing a series of consensus strategies. The good results confirm the usefulness of in silico methods as a support for experimental methods to predict the mutagenicity of azo compounds.
Collapse
Affiliation(s)
- Domenico Gadaleta
- a Laboratory of Environmental Chemistry and Toxicology, Department of Environmental Health Sciences , IRCCS - Istituto di Ricerche Farmacologiche Mario Negri , Milano , Italy
| | - Nicola Porta
- a Laboratory of Environmental Chemistry and Toxicology, Department of Environmental Health Sciences , IRCCS - Istituto di Ricerche Farmacologiche Mario Negri , Milano , Italy
| | - Eleni Vrontaki
- a Laboratory of Environmental Chemistry and Toxicology, Department of Environmental Health Sciences , IRCCS - Istituto di Ricerche Farmacologiche Mario Negri , Milano , Italy
- b Laboratory of Organic Chemistry, Department of Chemistry , National and Kapodistrian University of Athens , Athens , Greece
| | - Serena Manganelli
- a Laboratory of Environmental Chemistry and Toxicology, Department of Environmental Health Sciences , IRCCS - Istituto di Ricerche Farmacologiche Mario Negri , Milano , Italy
| | | | - Guido Sello
- d Department of Chemistry , University of Milano , Milan , Italy
| | - Masamitsu Honma
- e Division of Genetics & Mutagenesis National Institute of Health Sciences , Setagaya-ku , Tokyo , Japan
| | - Emilio Benfenati
- a Laboratory of Environmental Chemistry and Toxicology, Department of Environmental Health Sciences , IRCCS - Istituto di Ricerche Farmacologiche Mario Negri , Milano , Italy
| |
Collapse
|
46
|
Ahmed I, M. N. Iqbal H, Dhama K. Enzyme-Based Biodegradation of Hazardous Pollutants – An Overview. ACTA ACUST UNITED AC 2017. [DOI: 10.18006/2017.5(4).402.411] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
47
|
Nisar N, Aleem A, Saleem F, Aslam F, Shahid A, Chaudhry H, Malik K, Albaser A, Iqbal A, Qadri R, Yang Y. Reduction of reactive red 241 by oxygen insensitive azoreductase purified from a novel strain Staphylococcus KU898286. PLoS One 2017; 12:e0175551. [PMID: 28467413 PMCID: PMC5414976 DOI: 10.1371/journal.pone.0175551] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Accepted: 03/28/2017] [Indexed: 11/18/2022] Open
Abstract
An oxygen insensitive azoreductase was purified from a novel bacterial strain (Staphylococcus sp. KU898286) that was isolated from an abandoned site of the textile waste discharge unit. The isolated enzyme had efficiently cleaved the azo-bonds through reductive transformation under aerobic conditions. Initial phenotypic characterization and final construction of phylogenetic tree on the basis of 16s rDNA demonstrated 99% resemblance of the isolate to Staphylococcus aureus. The purified azoreductase was found to have a broad spectrum activity that reduced RR241 at a concentration of 50mg/L with pH between 6-8 and 30°C temperature). Besides, the reactive red 241 (RR241) was reduced at extracellular level as well as NADH dependent intracellular level. Complete reduction/ decolourization of RR241 were achieved after 18 hrs of exposure. The final degradation product observed to be 2-nephthol was purified by High Pressure Liquid Chromatography (HPLC) and the molecular mass was computed by Gas Chromatography-Mass spectroscopy (GC-MS). The study revealed a cost effective and eco-friendly approach to degrade the toxic dyes into less toxic products by Staphylococcus sp. KU898286.
Collapse
Affiliation(s)
- Numrah Nisar
- Department of Environmental Sciences, Lahore College for Women University Lahore, Lahore, Pakistan
| | - Amber Aleem
- Department of Environmental Sciences, Lahore College for Women University Lahore, Lahore, Pakistan
| | - Faiza Saleem
- Department of Biotechnology, Lahore College for Women University Lahore, Lahore, Pakistan
| | - Fakhra Aslam
- Department of Environmental Sciences, Lahore College for Women University Lahore, Lahore, Pakistan
| | - Ammara Shahid
- Department of Environmental Sciences, Lahore College for Women University Lahore, Lahore, Pakistan
| | - Hina Chaudhry
- Department of Environmental Sciences, Lahore College for Women University Lahore, Lahore, Pakistan
| | - Kausar Malik
- Department of ORIC, Lahore College for Women University Lahore, Lahore, Pakistan
| | | | - Amjad Iqbal
- Hainan Key Laboratory of Tropical Oil Crops Biology/Coconut Research Institute, Chinese Academy of Tropical Agricultural Science, Wenchang, Hainan, China
- Department of Agriculture, Abdul Wali Khan University Mardan, Mardan, Pakistan
| | - Rashad Qadri
- Hainan Key Laboratory of Tropical Oil Crops Biology/Coconut Research Institute, Chinese Academy of Tropical Agricultural Science, Wenchang, Hainan, China
- Institute of Horticultural Sciences, University of Faisalabad, Faisalabad, Pakistan
- * E-mail: (RQ); (YY)
| | - Yaodong Yang
- Hainan Key Laboratory of Tropical Oil Crops Biology/Coconut Research Institute, Chinese Academy of Tropical Agricultural Science, Wenchang, Hainan, China
- * E-mail: (RQ); (YY)
| |
Collapse
|
48
|
Ganguly D, Jain CK, Santra RC, Roychoudhury S, Majumder HK, Mondal TK, Das S. Anticancer Activity of a Complex of CuIIwith 2-(2-hydroxyphenylazo)-indole-3/-acetic Acid on three different Cancer Cell Lines: A Novel Feature for Azo Complexes. ChemistrySelect 2017. [DOI: 10.1002/slct.201601270] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Durba Ganguly
- Department of Chemistry (Inorganic Section); Jadavpur University; Kolkata-700 032 India
| | - Chetan Kumar Jain
- Cancer Biology & Inflammatory Disorder Division; Indian Institute of Chemical Biology; Kolkata-700032, India
- Infectious Diseases and Immunology Division; Indian Institute of Chemical Biology; Kolkata-700032 India
| | - Ramesh Chandra Santra
- Department of Chemistry (Inorganic Section); Jadavpur University; Kolkata-700 032 India
| | - Susanta Roychoudhury
- Cancer Biology & Inflammatory Disorder Division; Indian Institute of Chemical Biology; Kolkata-700032, India
| | - Hemanta Kumar Majumder
- Infectious Diseases and Immunology Division; Indian Institute of Chemical Biology; Kolkata-700032 India
| | - Tapan Kumar Mondal
- Department of Chemistry (Inorganic Section); Jadavpur University; Kolkata-700 032 India
| | - Saurabh Das
- Department of Chemistry (Inorganic Section); Jadavpur University; Kolkata-700 032 India
| |
Collapse
|
49
|
Rovina K, Siddiquee S, Shaarani SM. A Review of Extraction and Analytical Methods for the Determination of Tartrazine (E 102) in Foodstuffs. Crit Rev Anal Chem 2017; 47:309-324. [PMID: 28128965 DOI: 10.1080/10408347.2017.1287558] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Tartrazine is an azo food dye, which is orange-colored and water soluble. It is usually used in foods, pharmaceuticals, cosmetics, and textiles. Tartrazine has the potential to cause an adverse health effect on humans, such as hyperactivity in children, allergy, and asthma. Joint FAO/WHO Expert Committee on Food Additive and EU Scientific Committee for Food have standardized the acceptable daily intake for tartrazine that is 7.5 mg kg-1 body weight. Many researchers have detected the presence of tartrazine for monitoring the quality and safety of food products. In this review paper, we highlighted various tartrazine detection and extraction methods. Some of the analytical methods are available such as high-performance liquid chromatography, electrochemical sensor, thin-layer chromatography, spectrophotometry, capillary electrophoresis, and liquid chromatography-tandem mass spectrometry. Also, we discuss following extraction steps: liquid-liquid extraction, solid-phase extraction, membrane filtration, cloud point extraction, and other extraction method. In addition, a brief overview is presented explaining the synthesis process and metabolism of tartrazine and the maximum permitted level in different countries. This review paper will give an insight into different extraction and analytical methods for the determination of tartrazine in healthy foods, which will attract the attention of public toward food safety and quality, and also the interest of food industry and government bodies.
Collapse
Affiliation(s)
- Kobun Rovina
- a Biotechnology Research Institute, Universiti Malaysia Sabah, Jalan UMS , Sabah , Malaysia.,b Faculty of Food Science and Nutrition , Universiti Malaysia Sabah, Jalan UMS , Sabah , Malaysia
| | | | - Sharifudin Md Shaarani
- b Faculty of Food Science and Nutrition , Universiti Malaysia Sabah, Jalan UMS , Sabah , Malaysia
| |
Collapse
|
50
|
Characterization of the Degradation Products from the Red Dye 40 by Enterobacteria. JOURNAL OF PURE AND APPLIED MICROBIOLOGY 2016. [DOI: 10.22207/jpam.10.4.12] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|