Construction of co-immobilized laccase and mediator based on MOFs membrane for enhancing organic pollutants removal

Biodegradation of Aflatoxin B1 in Peanut Oil by an Amphipathic Laccase–Inorganic Hybrid Nanoflower

“…Laccase is a polyphenol oxidase that can oxidize a wide range of substrates while reducing dioxygen to water and has been considered as a green biological tool for the degradation of various phenolic and non-phenolic contaminants. − Previous studies have revealed that laccase can catalyze the oxidation of AFB 1 to aflatoxin Q 1 (AFQ 1 ) in aqueous solution. , The toxicological analysis illustrated that AFQ 1 was almost non-toxic to human liver cells . However, the detoxification efficiency for non-phenolic compounds is poor as a result of the low redox potential (0.5–0.8 V) of laccase . To address this problem, the laccase–mediator system (LMS) was constructed using a mediator as the “electron shuttle” to indirectly oxidize the substrates .…”

“…19 However, the detoxification efficiency for non-phenolic compounds is poor as a result of the low redox potential (0.5−0.8 V) of laccase. 45 To address this problem, the laccase−mediator system (LMS) was constructed using a mediator as the "electron shuttle" to indirectly oxidize the substrates. 46 In LMS, laccase catalyzes the reduction of oxygen to water with the generation of oxidized mediators, which are long-lived radical species that can further catalyze the oxidation of nonphenolic compounds (Figure 3A).…”

Inorganic Oxide Systems as Platforms for Synergistic Adsorption and Enzymatic Conversion of Estrogens from Aqueous Solutions: Mechanism, Stability and Toxicity Studies

“…For calcium silicate, the surface area, pore volume and average pore diameter were initially 33 m 2 /g, 0.14 cm 3 /g, and 27.3 nm, respectively, whereas after laccase immobilization process it decreased to 28 m 2 /g, 0.13 cm 3 /g, and 23.5 nm, respectively. These changes are caused by adsorption of the enzymes onto the surface and into the CaSiO 3 pores as a result of the immobilization process and therefore prove the presence of the enzyme in the fabricated biocatalyst structure [22,2,34].…”

Environmental applications of immobilized and bio-resourced redox mediators: A Review

“…These above immobilization procedures are relatively easy, but in some cases they are costly due to the usage of some advanced adsorptive materials such as nanoparticles or metal-organic frameworks (Li et al 2017;Lou et al 2023). The adsorption performance of an adsorbent to immobilize RMs is usually determined by adsorption isotherms modeling, the result of which provides proper guidance to maximize the electrontransferring capacity.…”