Designing biopolymer-based artificial peroxidase for oxidative removal of dibenzothiophene from a model diesel fuel

Chakraborty, Supratim; Shet, Sachin M.; Pereira, Matheus M.; Nataraj, Sanna Kotrappanavar; Mondal, Dibyendu

doi:10.1016/j.ijbiomac.2021.05.141

Cited by 4 publications

(2 citation statements)

References 45 publications

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“…ABTS˙ + was calculated based on the extinction coefficient of ABTS˙ + at λ = 418 nm ( ε = 36 000 M −1 cm −1 ). 30,31 The concentration of ABTS˙ + was plotted as a function of time and the initial reaction rates ( V 0 ) were determined by calculating the slope of the linear portion of the plot.…”

Section: Methodsmentioning

confidence: 99%

Visual detection of aflatoxin B1 and zearalenone via activating a new catalytic reaction of “naked” DNAzyme

Liu

et al. 2022

RSC Adv.

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Section: Methodsmentioning

confidence: 99%

Visual detection of aflatoxin B1 and zearalenone via activating a new catalytic reaction of “naked” DNAzyme

Liu

et al. 2022

RSC Adv.

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“…The main factors in polymeric support selection are the chemical structure, adsorption capacity, chemical resistance and physical strength of the polymer, and solubility coefficient [28]. However, few studies have investigated the effect of cell immobilisation on polymer support or designing biopolymers on the removal of aromatic heterocyclic sulphur compounds [26,27,29].…”

Section: Introductionmentioning

confidence: 99%

Hydro-Cracked Light Gas Oil Biodesulphurisation by Immobilised Pseudomonas aeruginosa Cells on Polyvinyl Alcohol

KHOSH RAVESH,

SADEGHI,

SHARIFI

2023

Ecological Chemistry and Engineering S

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Refining petroleum fractions containing heterocyclic sulphur compounds to produce sulphur-free fuels, requires efficient desulphurisation methods. A new biocatalyst has been synthesised by immobilising Pseudomonas aeruginosa cells on polyvinyl alcohol by adsorption for hydro-cracked light gas oil bio-desulphurisation. The surface functional groups and biocatalyst morphology have been investigated by Fourier transform infrared spectroscopy and scanning electron microscopy. The bio-desulphurisation of dibenzothiophene as a heterocyclic sulphur model compound of gas oil was achieved with an aqueous-oil ratio (v/v) of 50 %, where the removed mass was 0.3826 mg per gram of biocatalyst at equilibrium condition, bio-desulphurisation rate of 0.375 h–1 and removal percentage was 95.65 %. The biodegradation of dibenzothiophene and its derivatives in hydro-cracked light gas oil has been determined after a batch process using 0.5 g of the biocatalyst after 5 h of contact time at 37 °C. According to gas chromatography - mass spectrometry, ethyl and trimethyl derivatives of dibenzothiophene have been degraded by higher efficiencies in comparison with other derivatives. Also, thiophenes and mercaptans of the gasoil sample have been degraded simultaneously to some extent. Equilibrium data have been observed to obey the pseudo-first-order kinetic model. The cell immobilisation facilitates the interaction of surface functional groups with sulphur compounds. The synergistic effect of cell immobilisation on the bio-activity of bacterial cells was due to the maintenance of the heterotrophic, bacillus morphology of the cells after immobilisation. This approach provides a simple, economical method with mild operating conditions to produce low-sulphur light gas oil through the biodegradation of heterocyclic sulphur compounds.

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Designing engineered biopolymer mesh filter for robust sequestration of chromium (VI), fluoride and other emerging pollutants: A sustainable approach

D'Souza

Kumar

Kamath

et al. 2022

Chemical Engineering Journal

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Designing biopolymer-based artificial peroxidase for oxidative removal of dibenzothiophene from a model diesel fuel

Cited by 4 publications

References 45 publications

Visual detection of aflatoxin B1 and zearalenone via activating a new catalytic reaction of “naked” DNAzyme

Visual detection of aflatoxin B1 and zearalenone via activating a new catalytic reaction of “naked” DNAzyme

Hydro-Cracked Light Gas Oil Biodesulphurisation by Immobilised Pseudomonas aeruginosa Cells on Polyvinyl Alcohol

Designing engineered biopolymer mesh filter for robust sequestration of chromium (VI), fluoride and other emerging pollutants: A sustainable approach

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