Enzyme polymer engineered structure strategy to enhance cross-linked enzyme aggregate stability: a step forward in laccase exploitation for cannabidiol removal from wastewater

Despite all its advantages and potential, cross-linking enzyme aggregate (CLEA) technology is still not applied at an industrial scale for enzyme insolubilization for bioremediation purposes. In this study, the enzyme polymer engineered structure (EPES) method was used to enhance CLEA stability and...

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Bibliographic Details
Published in:Environmental science and pollution research international 2021-08, Vol.28 (32), p.44051-44063
Main Authors: Ariste, Arielle Farida, Haroune, Lounes, Saibi, Sabrina, Cabana, Hubert
Format: Article
Language:English
Subjects:
Aquatic Pollution
Atmospheric Protection/Air Quality Control/Air Pollution
Biocatalysts
Bioremediation
Cannabidiol
Cannabinoids
Centrifugation
Crosslinking
Earth and Environmental Science
Ecotoxicology
Environment
Environmental Chemistry
Environmental conditions
Environmental Health
Environmental science
Enzymes
Laccase
Municipal wastewater
Oxidation
Polymers
Research Article
Sulfonic acid
Waste Water Technology
Wastewater
Wastewater treatment
Water Management
Water Pollution Control
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Summary:Despite all its advantages and potential, cross-linking enzyme aggregate (CLEA) technology is still not applied at an industrial scale for enzyme insolubilization for bioremediation purposes. In this study, the enzyme polymer engineered structure (EPES) method was used to enhance CLEA stability and reuse. A crude laccase from Trametes hirsuta was successfully insolubilized to form EPES-CLEAs. The polymeric network provided excellent stability (> 90%) to CLEAs after a 24-h incubation in a non-buffered municipal wastewater effluent (WW), and the biocatalysts were recycled using a centrifugation process. While CLEAs activity dropped to 17%, EPES-CLEAs showed a laccase activity retention of 67% after five cycles of 2,2’-azino-bis (3-ethylbenzthiazoline-6-sulfonic acid) (ABTS) oxidation. After 8 h of treatment in WW, the EPES-CLEAs were equally as effective in removing cannabidiol (CBD) as the free-LAC (~ 37%). This research demonstrates that the EPES method is a promising alternative for CLEA stabilization and reuse in environmental conditions.
ISSN:0944-1344
1614-7499
DOI:10.1007/s11356-021-13746-4