Microbial and Enzymatic Degradation of Synthetic Plastics

Mohanan, Nisha; Montazer, Zahra; Sharma, Parveen; Levin, David B.

doi:10.3389/fmicb.2020.580709

Cited by 561 publications

(328 citation statements)

References 222 publications

Supporting

Mentioning

247

Contrasting

Unclassified

Order By: Relevance

“…However, it should be noted that plastic degradation by TM could generate microplastics due to incomplete degradation and mineralisation. Microplastics harm the environment and human health since they attract and store toxic compounds, such as polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDs) and bisphenols (Mohanan et al 2020). Furthermore, all plastics contain various types of contaminants.…”

Section: Critical Aspects Of Plastic Biodegradation and Pha Recovery Through Tmmentioning

confidence: 99%

Tenebrio molitor in the circular economy: a novel approach for plastic valorisation and PHA biological recovery

Sangiorgio

Verardi

Dimatteo

et al. 2021

Environ Sci Pollut Res

View full text Add to dashboard Cite

The increase in the world population leads to rising demand and consumption of plastic raw materials; only a small percentage of plastics is recovered and recycled, increasing the quantity of waste released into the environment and losing its economic value. The plastics represent a great opportunity in the circular perspective of their reuse and recycling. Research is moving, on the one hand, to implement sustainable systems for plastic waste management and on the other to find new non-fossil-based plastics such as polyhydroxyalkanoates (PHAs). In this review, we focus our attention on Tenebrio molitor (TM) as a valuable solution for plastic biodegradation and biological recovery of new biopolymers (e.g. PHA) from plastic-producing microorganisms, exploiting its highly diversified gut microbiota. TM’s use for plastic pollution management is controversial. However, TM microbiota is recognised as a source of plastic-degrading microorganisms. TM-based plastic degradation is improved by co-feeding with food loss and waste as a dietary energy source, thus valorising these low-value substrates in a circular economy perspective. TM as a bioreactor is a valid alternative to traditional PHA recovery systems with the advantage of obtaining, in addition to highly pure PHA, protein biomass and rearing waste from which to produce fertilisers, chitin/chitosan, biochar and biodiesel. Finally, we describe the critical aspects of these TM-based approaches, mainly related to TM mass production, eventual food safety problems, possible release of microplastics and lack of dedicated legislation.

show abstract

Section: Critical Aspects Of Plastic Biodegradation and Pha Recovery Through Tmmentioning

confidence: 99%

Tenebrio molitor in the circular economy: a novel approach for plastic valorisation and PHA biological recovery

Sangiorgio

Verardi

Dimatteo

et al. 2021

Environ Sci Pollut Res

View full text Add to dashboard Cite

show abstract

“…(i) use multi-OMIC and interdisciplinary approaches to understand the role of the plastisphere in plastic biodegradation as well as in determining the mechanisms and pathways used for biodegradation 19,151,157,161,164,170,172,175,178,180,181,183,184,188,189,191,194,196,[198][199][200][204][205][206][207] ;…”

Section: Discussionmentioning

confidence: 99%

<em> </em>Current Research on Microbe-Plastic Interactions in the Marine Environment

Latva¹,

Zadjelovic²,

Wright³

2021

Preprint

View full text Add to dashboard Cite

The microbial colonisers of plastics – the ‘plastisphere’ – can affect all interactions that plastics have with their surrounding environments. While only specifically characterised within the last 10 years, at the beginning of 2021 there were 140 primary research and 65 review articles that investigate at least one aspect of the plastisphere. We gathered information on the locations and methodologies used by each of the primary research articles, highlighting several aspects of plastisphere research that remain understudied: (i) the non-bacterial plastisphere constituents; (ii) the mechanisms used to degrade plastics by marine isolates or communities; (iii) the capacity for plastisphere members to be pathogenic or carry antimicrobial resistance genes; and (iv) meta-OMIC characterisations of the plastisphere. We have also summarised the topics covered by the existing plastisphere review articles, identifying areas that have received less attention to date – most of which are in line with the areas that have fewer primary research articles. Therefore, in addition to providing an overview of some fundamental topics such as biodegradation and community assembly, we discuss the importance of eukaryotes in shaping the plastisphere, potential pathogens carried by plastics and the impact of the plastisphere on plastic transport and biogeochemical cycling. Finally, we summarise the future directions suggested by the reviews that we have evaluated and suggest other key research questions.

show abstract

“…Previous study on G. mellonella larvae gut states more than 80% of Enterococcus , however, only the midgut part of the digestive tract was used [36, 37]. Regarding the Proteobacteria, they were broadly abundant in the Pyralidae Plodia interpunctella [17]. It was interesting to observe that Ralstonia , Curvibacter and Herbaspirilum belong to three families among the most abundant in G.mellonella or P. interpunctella (Burkholderiaceae, Commamonadacea and Oxalobacteraceae).…”

Section: Discussionmentioning

confidence: 99%

“…The digestive tract of insects could be a new opportunity to track and characterize the proteins implicated in depolymerization of waste PE [17].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Multi-omics approach reveals new insights into the gut microbiome of Galleria mellonella (Lepidoptera:Pyralidae) exposed to polyethylene diet

Latour

Noël

Serteyn

et al. 2021

Preprint

View full text Add to dashboard Cite

The current plastic pollution throughout the world implies a crucial optimization of its (bio)degradation processes. In order to identify plastic degrading bacteria and associated enzymes, the gut microbiota of insects has raised interest. Some entomological models such as Tenebrio molitor (L. 1758), Plodia interpunctella (Hubner 1813) or Galleria mellonella (L. 1758) have the ability to ingest and degrade polyethylene. Then, it is promising to identify the composition and the role of the gut microbiota in this process. This study takes part in this issue by investigating G. mellonella as a biological model feeding with a polyethylene diet. Gut microbiome samples were processed by high throughput 16S rRNA sequencing, and Enterococcaceae and Oxalobacteraceae were found to be the major bacterial families. At low polyethylene dose, we detect no bacterial community change and no amplicon sequence variant associated with the polyethylene diet suggesting microbiome resilience. The functional analysis of insects gut content was promising for the identification of plastic degrading enzymes such as the phenylacetaldehyde dehydrogenase which participate in styrene degradation. This study allows a better characterization of the gut microbiota of G. mellonella and provides a basis for the further biodegradation study of polyethylene based on the microorganism valorization from insect guts.

show abstract

Microbial and Enzymatic Degradation of Synthetic Plastics

Cited by 561 publications

References 222 publications

Tenebrio molitor in the circular economy: a novel approach for plastic valorisation and PHA biological recovery

Tenebrio molitor in the circular economy: a novel approach for plastic valorisation and PHA biological recovery

<em> </em>Current Research on Microbe-Plastic Interactions in the Marine Environment

Multi-omics approach reveals new insights into the gut microbiome of Galleria mellonella (Lepidoptera:Pyralidae) exposed to polyethylene diet

Contact Info

Product

Resources

About