Enhanced biodegradation of microplastic and phthalic acid ester plasticizer : The role of gut microorganisms in black soldier fly larvae

Copyright © 2024 Elsevier B.V. All rights reserved..

Hermetia illucens larvae are recognized for their ability to mitigate or eliminate contaminants by biodegradation. However, the biodegradation characteristics of microplastics and phthalic acid esters plasticizers, as well as the role of larval gut microorganisms, have remained largely unrevealed. Here, the degradation kinetics of plasticizers, and biodegradation characteristics of microplastics were examined. The role of larval gut microorganisms was investigated. For larval development, microplastics slowed larval growth significantly (P < 0.01), but the effect of plasticizer was not significant. The degradation kinetics of plasticizers were enhanced, resulting in an 8.11 to 20.41-fold decrease in degradation half-life and a 3.34 to 3.82-fold increase in final degradation efficiencies, compared to degradation without larval participation. The depolymerization and biodeterioration of microplastics were conspicuously evident, primarily through a weight loss of 17.63 %-25.52 %, variation of chemical composition and structure, bio-oxidation and bioerosion of microplastic surface. The synergistic effect driven by larval gut microorganisms, each with various functions, facilitated the biodegradation. Specifically, Ignatzschineria, Paenalcaligenes, Moheibacter, Morganella, Dysgonomonas, Stenotrophomonas, Bacteroides, Sphingobacterium, etc., appeared to be the key contributors, owing to their xenobiotic biodegradation and metabolism functions. These findings offered a new perspective on the potential for microplastics and plasticizers biodegradation, assisted by larval gut microbiota.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:924

Enthalten in:

The Science of the total environment - 924(2024) vom: 10. Apr., Seite 171674

Sprache:

Englisch

Beteiligte Personen:

Wang, Jiaqing [VerfasserIn]
Liu, Cuncheng [VerfasserIn]
Cao, Qingcheng [VerfasserIn]
Li, Yun [VerfasserIn]
Chen, Li [VerfasserIn]
Qin, Yuanhang [VerfasserIn]
Wang, Tielin [VerfasserIn]
Wang, Cunwen [VerfasserIn]

Links:

Volltext

Themen:

6O7F7IX66E
Endocrine disrupter
Esters
Gut microbiota
Hermetia illucens
Journal Article
Microplastics
Phthalic Acids
Phthalic acid
Plastic particles
Plasticizer
Plasticizers
Plastics

Anmerkungen:

Date Completed 03.04.2024

Date Revised 03.04.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.scitotenv.2024.171674

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM369692365