Magnetic casein aggregates as an innovative support platform for laccase immobilization and bioremoval of crystal violet

Hariri, Parsa; Jafari-Nodoushan, Hossein; Mojtabavi, Somayeh; Hadizadeh, Nastaran; Rezayaraghi, Farnoosh; Faramarzi, Mohammad Ali

doi:10.1016/j.ijbiomac.2021.12.099

Cited by 13 publications

(2 citation statements)

References 65 publications

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“…Several other supports have been used for the immobilization of laccases with successive application in dye degradation. Hariri et al, 2022 [ 74 ] complexed the laccase from Trametis versicolor magnetic casein aggregates, with more than 80% removal of crystal violet dye from the medium. Jiang et al [ 75 ] immobilized the same laccase in a one-pot strategy involving the encapsulation of the enzyme in MOF containing Cu, followed by encapsulation in PABA, with subsequent application in the removal of Direct Red 31 dye with about 70% removal in 24 h. Ariaeenejad et al, 2022 [ 76 ] synthesized nanocellulose from quinoa agro-industrial waste, which was applied as a support for the immobilization of recombinant laccase (PersiLac1), with efficient removal of two different dyes, malachite green (MG) and congo red (CR), from water.…”

Section: Resultsmentioning

confidence: 99%

Corn Cob as a Green Support for Laccase Immobilization—Application on Decolorization of Remazol Brilliant Blue R

Santos

Baruque

Lira

et al. 2022

IJMS

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The high demand for food and energy imposed by the increased life expectancy of the population has driven agricultural activity, which is reflected in the larger quantities of agro-industrial waste generated, and requires new forms of use. Brazil has the greatest biodiversity in the world, where corn is one of the main agricultural genres, and where over 40% of the waste generated is from cobs without an efficient destination. With the aim of the valorization of these residues, we proposed to study the immobilization of laccase from Aspergillus spp. (LAsp) in residual corn cob and its application in the degradation of Remazol Brilliant Blue R (RBBR) dye. The highest yields in immobilized protein (75%) and residual activity (40%) were obtained at pH 7.0 and an enzyme concentration of 0.1 g.mL−1, whose expressed enzyme activity was 1854 U.kg−1. At a temperature of 60 °C, more than 90% of the initial activity present in the immobilized biocatalyst was maintained. The immobilized enzyme showed higher efficiency in the degradation (64%) of RBBR dye in 48 h, with improvement in the process in 72 h (75%). The new biocatalyst showed operational efficiency during three cycles, and a higher degradation rate than the free enzyme, making it a competitive biocatalyst and amenable to industrial applications.

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Section: Resultsmentioning

confidence: 99%

Corn Cob as a Green Support for Laccase Immobilization—Application on Decolorization of Remazol Brilliant Blue R

Santos

Baruque

Lira

et al. 2022

IJMS

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“…CV is the primary component in many office supplies, including ballpoint pens, inkjet printers, and printing inks. CV dyes are used to color a wide variety of products, from fertilizers and antifreeze to detergents and leathers 8 . As a result, the CV is classified as a hazardous biological substance.…”

Section: Introductionmentioning

confidence: 99%

Enhanced photocatalytic and antibacterial activities of novel Ag-HA bioceramic nanocatalyst for waste-water treatment

Elbasuney,

El-Khawaga,

Elsayed

et al. 2023

Sci Rep

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Hydroxyapatite (HA), the most common bioceramic material, offers attractive properties as a catalyst support. Highly crystalline mono-dispersed silver doped hydroxyapatite (Ag-HA) nanorods of 60 nm length was developed via hydrothermal processing. Silver dopant offered enhanced chemisorption for crystal violet (CV) contaminant. Silver was found to intensify negative charge on the catalyst surface; in this regard enhanced chemisorption of positively charged contaminants was accomplished. Silver dopant experienced decrease in the binding energy of valence electron for oxygen, calcium, and phosphorous using X-ray photoelectron spectroscopy XPS/ESCA; this finding could promote electron–hole generation and light absorption. Removal efficiency of Ag-HA nanocomposite for CV reached 88% after the synergistic effect with 1.0 mM H2O2; silver dopant could initiate H2O2 cleavage and intensify the release of active ȮH radicals. Whereas HA suffers from lack of microbial resistance; Ag-HA nanocomposite demonstrated high activity against Gram-positive (S. aureus) bacteria with zone of inhibition (ZOI) mm value of 18.0 mm, and high biofilm inhibition of 91.1%. Ag-HA nanocompsite experienced distinctive characerisitcs for utilization as green bioceramic photocatalyst for wastewater treatment.

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Laccase-loaded magnetic dialdehyde inulin nanoparticles as an efficient heterogeneous natural polymer-based biocatalyst for removal and detoxification of ofloxacin

et al. 2022

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Magnetic casein aggregates as an innovative support platform for laccase immobilization and bioremoval of crystal violet

Cited by 13 publications

References 65 publications

Corn Cob as a Green Support for Laccase Immobilization—Application on Decolorization of Remazol Brilliant Blue R

Corn Cob as a Green Support for Laccase Immobilization—Application on Decolorization of Remazol Brilliant Blue R

Enhanced photocatalytic and antibacterial activities of novel Ag-HA bioceramic nanocatalyst for waste-water treatment

Laccase-loaded magnetic dialdehyde inulin nanoparticles as an efficient heterogeneous natural polymer-based biocatalyst for removal and detoxification of ofloxacin

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