Decolorization and degradation of azo dye – Reactive Violet 5R by an acclimatized indigenous bacterial mixed cultures-SB4 isolated from anthropogenic dye contaminated soil

Jain, Kunal; Shah, Varun; Chapla, Digantkumar; Madamwar, Datta

doi:10.1016/j.jhazmat.2012.02.010

Cited by 139 publications

(59 citation statements)

References 37 publications

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“…1733-12-6) (570 nm), Crocein Orange G (C. I. 15970) (482 nm The ingredients of the growth media (% w/v) were modified from the LPM above to cater for dye-decolorization requirement, which include sodium lactate and sodium nitrate (Jain et al 2012;Ng et al 2014), and were as follows: glucose (1%), sodium lactate (1%), (NH 4 ) 2 .SO 4 (0.3%), NaNO 3 (0.2%), MgSO 4 .7H 2 O (0.05%), yeast extract (0.05%), NaCl (0.5%), and Na 2 HPO 4 (0.705% or 50 mM). The media was adjusted to pH 7.0.…”

Section: Screening For Bacterial Dye Decolorisationmentioning

confidence: 99%

Isolation and Characterisation of a Molybdenum-reducing and Metanil Yellow Dye-decolourising Bacillus sp. strain Neni-10 in Soils from West Sumatera, Indonesia

Mansur

Gusmanizar

Roslan

et al. 2017

tlsr

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Abstrak: Satu bakteria penurun molibdenum dengan keupayaan baru untuk menyahwarna pewarna azo Kuning Metanil dilaporkan. Kondisi optimum untuk penurunan molibdenum adalah pada pH 6.3 dan pada suhu 34°C. Glukosa adalah penderma elektron yang terbaik. Keperluan-keperluan lain termasuklah kepekatan fosfat yang sempit di antara 2.5 dan 7.5 mM. Profil masa pengeluaran Mo-biru menunjukkan tempoh sela masa kira-kira 12 jam, jumlah maksimum Mo-biru dihasilkan pada kepekatan molibdat 20 mM dan pengeluaran maksimum pada masa 52 jam inkubasi. Logam-logam berat seperti merkuri, perak, tembaga dan kromium merencat penurunan sebanyak 91.9, 82.7, 45.5 dan 17.4%, masing-masing. Penyahwarnaan pewarna Kuning Metanil pada kepekatan 100 dan 150 mg/L berlaku pada hari ketiga dan hari enam inkubasi, masing-masing. Kepekatan yang lebih tinggi menghasilkan degradasi separa, dengan penyahwarnaan warna sebanyak 20% berlaku pada kepekatan 400 mg/L. Bakteria ini dikenal pasti secara separa berdasarkan analisis biokimia sebagai Bacillus sp. strain Neni-10. Spektrum penyerapan Mo-biru mencadangkan bahawa kompaun terhasil adalah fosfomolibdat terturun. Pengasingan bakteria ini, yang menunjukkan penurunan logam berat dan keupayaan penyahwarnaan pewarna, adalah diperlukan, terutamanya untuk bioremediasi.Kata kunci: Penurun Molibdenum, Molibdenum Biru, Bacillus sp., Pewarna Azo, Kuning Metanil Abstract: A molybdenum reducing bacterium with the novel ability to decolorise the azo dye Metanil Yellow is reported. Optimal conditions for molybdenum reduction were pH 6.3 and at 34°C. Glucose was the best electron donor. Another requirement includes a narrow phosphate concentration between 2.5 and 7.5 mM. A time profile of Mo-blue production shows a lag period of approximately 12 hours, a maximum amount of Mo-blue produced at a molybdate concentration of 20 mM, and a peak production at 52 h of incubation. The heavy metals mercury, silver, copper and chromium inhibited reduction by 91.9, 82.7, 45.5 and 17.4%, respectively. A complete decolourisation of the dye Metanil Yellow at 100 and * Corresponding author: yunus.upm@gmail.com Rusnam Mansor et al. 70150 mg/L occurred at day three and day six of incubations, respectively. Higher concentrations show partial degradation, with an approximately 20% decolourisation observed at 400 mg/L. The bacterium is partially identified based on biochemical analysis as Bacillus sp. strain Neni-10. The absorption spectrum of the Mo-blue suggested the compound is a reduced phosphomolybdate. The isolation of this bacterium, which shows heavy metal reduction and dye-decolorising ability, is sought after, particularly for bioremediation.

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Section: Screening For Bacterial Dye Decolorisationmentioning

confidence: 99%

Isolation and Characterisation of a Molybdenum-reducing and Metanil Yellow Dye-decolourising Bacillus sp. strain Neni-10 in Soils from West Sumatera, Indonesia

Mansur

Gusmanizar

Roslan

et al. 2017

tlsr

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“…All experiments were performed with necessary controls and in triplicates. Azoreduction and biodegradation profile of RBV5R (200 mg L −1 ) were studied using UV-Vis and FTIR spectroscopy, chromatographic method (HPTLC), and NMR as mentioned in our previous study [11].…”

Section: Methodsmentioning

confidence: 99%

“…S1). Moosvi et al [19] showed 90 % azoreduction in a range of pH between 6.5 and 8.0, but its efficiency decreases at comparatively lower pH (3-6) and higher pH (9)(10)(11).…”

Section: Significance Of Biotic and Abiotic Traits On Azoreductionmentioning

confidence: 99%

Microaerophilic Symmetric Reductive Cleavage of Reactive Azo Dye—Remazole Brilliant Violet 5R by Consortium VIE6: Community Synergism

Shah

Jain

Jiyani

et al. 2016

Appl Biochem Biotechnol

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The textile-dyeing industry is rated as one of the foremost industrial sectors that explodes large amount of pollutants to the environment. Reactive azo dye degradation, being a major constituent of these pollutants and perilous material, has been constantly receiving scientific attention. In textile industry, use of Remazole Brilliant Violet 5R (RBV5R) as reactive azo dyes is more frequent. Highly competent, RBV5R-degrading bacterial consortium VIE6 was developed from the soil of the Vatva Industrial Estate, Gujarat, India. Consortium VIE6 comprised of five bacterial strains Bacillus sp. DMB1, Staphylococcus sp. DMB2, Escherichia sp. DMB3, Enterococcus sp. DMB4, and Pseudomonas sp. DMB5. These strains convened a better decolorization efficiency between 200 and 1000 mg/L of dye concentration and were much stable at pH 6.5, 37 °C. Azoreductase, laccase, and lignin peroxidase activities of consortium showed significant variation throughout the degradation process indicating the different metabolic capabilities of the existing microflora. The community interactions and synergism were shown to facilitate the biotransformation of RBV5R by combination of various electron donors. Voltammograms revealed the variations in electron discharge properties which coincide with the dynamics of community derived using qPCR assays. The variation in catabolic capabilities of the individual strains was observed during active metabolism of RBV5R degradation pertaining to the aerobic and facultative functions.

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“…Several treatment methods, such as adsorption (Zuorro et al 2013), microbial degradation (Jain et al 2012;Fetyan et al 2013), ozonation (Khare et al 2007), TiO 2 photocatalysis (Chung and Chen 2009) and anodic oxidation on manganese oxide-based electrodes (Sotgiu et al 2014), have been investigated for the removal of RV5 from wastewater. Here, we explore the suitability of an electrochemical treatment based on the use of BDD thin-film electrodes to decolorize RV5.…”

Section: Introductionmentioning

confidence: 99%

Application of a novel definitive screening design to decolorization of an azo dye on boron-doped diamond electrodes

Fidaleo

Lavecchia

Petrucci

et al. 2016

Int. J. Environ. Sci. Technol.

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The electrochemical decolorization of the Reactive Violet 5 azo dye on a boron-doped diamond anode was used as a model process to test a novel definitive screening design (DSD). This method allows a dramatic reduction in the number of experiments needed to investigate those systems characterized by a large number of variables. In this study, the effect of nine quantitative parameters was investigated: initial dye concentration (60-120 mg L -1 ), current density (100-500 A m -2 ), NaCl concentration (5-20 mM), Na 2 SO 4 concentration (35-65 mM), pH (3-11), temperature (20-45°C), interelectrode distance (0.5-3.5 cm), stirring rate (250-750 rpm) and electrolysis time (2-8 min). Analysis of DSD data showed that four out of the nine factors (initial dye concentration, current density, pH and electrolysis time) were statistically significant. These factors were retained for process characterization using a subsequent central composite design. Overall, the number of experiments was reduced from over 500 to only 41, thus confirming the validity of the proposed approach as a timesaving and efficient method.

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Decolorization and degradation of azo dye – Reactive Violet 5R by an acclimatized indigenous bacterial mixed cultures-SB4 isolated from anthropogenic dye contaminated soil

Cited by 139 publications

References 37 publications

Isolation and Characterisation of a Molybdenum-reducing and Metanil Yellow Dye-decolourising Bacillus sp. strain Neni-10 in Soils from West Sumatera, Indonesia

Isolation and Characterisation of a Molybdenum-reducing and Metanil Yellow Dye-decolourising Bacillus sp. strain Neni-10 in Soils from West Sumatera, Indonesia

Microaerophilic Symmetric Reductive Cleavage of Reactive Azo Dye—Remazole Brilliant Violet 5R by Consortium VIE6: Community Synergism

Application of a novel definitive screening design to decolorization of an azo dye on boron-doped diamond electrodes

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