Photodegradation and Removal of Diclofenac by the Green Alga Nannochloropsis oculata

The emerging contaminants (ECs) are organic compounds including pharmaceuticals. These products are consumed in large quantities, favoring their continuous entrance to the environment and affecting the health of living beings. Diclofenac is a non-steroidal anti-inflammatory drug with analgesic prope...

Full description

Saved in:
Bibliographic Details
Published in:Phyton (Buenos Aires) 2021, Vol.90 (5), p.1519-1533
Main Authors: S醤chez-Sandoval, Dana Samara, Gonz醠ez-Ortega, Omar, Fernanda Navarro-Mart韓ez, Mara, Marcos Castro-Tapia, Juan, Fernando Garc韆 de la Cruz, Ram髇, Elena Soria-Guerra, Ruth
Format: Article
Language:English
Subjects:
Algae
Analgesics
Aquatic microorganisms
Aquatic plants
Biodegradation
Bioremediation
Cell walls
Contaminants
Diclofenac
Inflammation
Nannochloropsis oculata
Nitrogen
Nonsteroidal anti-inflammatory drugs
Nutrient concentrations
Organic compounds
Pharmaceuticals
Photodegradation
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The emerging contaminants (ECs) are organic compounds including pharmaceuticals. These products are consumed in large quantities, favoring their continuous entrance to the environment and affecting the health of living beings. Diclofenac is a non-steroidal anti-inflammatory drug with analgesic properties of prolonged release. It is the commonest postoperative analgesic, and it is highly consumed without prescription. In recent years, the capability of microalgae to remove pharmaceuticals in water has been tested as a promising tool. In this work, the removal efficiency of diclofenac (16 µg/mL) by the microalga Nannochloropsis oculata CCAP 186/7 was evaluated. The major nutrient concentrations in Bold’s Basal Medium were modified (nitrogen and carbon: 50 and 100% of their original concentration) to know their effect in the removal of diclofenac. Drug degradation by light was also evaluated. The maximum removal capacity of diclofenac in the medium was 68.8%. The percentage of diclofenac adsorbed on the cell wall was between 6 and 12.7%. Around 23.6% of diclofenac was degraded by light after 18 days. N. oculata did not show growth inhibition due to the presence of diclofenac. The results obtained point to the promissory application of N. oculata as a bioremediation system for diclofenac removal.
ISSN:1851-5657
0031-9457
1851-5657
DOI:10.32604/phyton.2021.015087