Fungal Bioremediation of the β-Lactam Antibiotic Ampicillin under Laccase-Induced Conditions.

Antibiotics (Basel)

Laboratory of Biochemistry and Enzyme Engineering of Lipases, National School of Engineers of Sfax, University of Sfax, BP 1173, Sfax 3038, Tunisia.

Published: April 2024

Due to widespread overuse, pharmaceutical compounds, such as antibiotics, are becoming increasingly prevalent in greater concentrations in aquatic ecosystems. In this study, we investigated the capacity of the white-rot fungus, (a high-laccase-producing fungus), to biodegrade ampicillin under different cultivation conditions. The biodegradation of the antibiotic was confirmed using high-performance liquid chromatography, and its antibacterial activity was evaluated using the bacterial growth inhibition agar well diffusion method, with as an ampicillin-sensitive test strain. successfully eliminated ampicillin (50 mg L) after 6 days of incubation in a liquid medium. The best results were achieved with a 9-day-old fungal culture, which treated a high concentration (500 mg L) of ampicillin within 3 days. This higher antibiotic removal rate was concomitant with the maximum laccase production in the culture supernatant. Meanwhile, four consecutive doses of 500 mg L of ampicillin were removed by the same fungal culture within 24 days. After that, the fungus failed to remove the antibiotic. The measurement of the ligninolytic enzyme activity showed that laccase might participate in the bioremediation of ampicillin.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11117353PMC
http://dx.doi.org/10.3390/antibiotics13050407DOI Listing

Publication Analysis

Top Keywords

ampicillin days
8
fungal culture
8
500 ampicillin
8
ampicillin
6
fungal bioremediation
4
bioremediation β-lactam
4
antibiotic
4
β-lactam antibiotic
4
antibiotic ampicillin
4
ampicillin laccase-induced
4

Similar Publications

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!