Publications by authors named "Yago A Vieira"

Article Synopsis
  • Laccases are increasingly studied for bioremediation to tackle environmental issues caused by emerging contaminants, with immobilized enzymes showing improved stability and applicability.
  • Currently, there is a lack of commercially available immobilized laccases, prompting ongoing research into effective materials and methods for enzyme immobilization.
  • Polyacrylonitrile (PAN) is a promising, cost-effective material for enzyme immobilization due to its ability to be modified for better interaction, and it can be used in various forms like fibers and beads, making it a viable option for industrial applications.
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This study evaluated simultaneously the raw vinasse degradation, an effluent from the sugar-alcohol industry, the laccase production by and its purification using aqueous two-phase systems (ATPS). To improve laccase production, different concentrations of inducers (ethanol and CuSO) were added. The higher laccase production promoted an increase of 4-fold using 0.

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Pulp wash was used as substrate for the activity of ligninolytic enzymes of the fungus . Activity of laccase (Lac) and manganese peroxidase (MnP) as well as fungal biomass occurred under four conditions: different pulp wash concentrations, pH variation at the optimal pulp wash concentration, different glucose concentrations, and different concentrations of ammonium nitrate. The best enzyme activity and biomass production were obtained with pulp wash and pH corrected to 5.

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