Vector transport of microplastics bound potentially toxic elements (PTEs) in water systems

Sewwandi, Madushika; Premarathne, K.S.D.; Wijesekara, Hasintha; Rajapaksha, Anushka Upamali; Soysa, Sasimali; Vithanage, M.

doi:10.4038/jnsfsr.v50i0.11240

Cited by 6 publications

(3 citation statements)

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“…Nurdles carry the potential to adsorb algal toxins, microorganisms, toxic metals, and organic compounds. The adsorbed constituents tend to become equilibrated with the environment and be released with changed osmolarity and acidities [56]. The digestive environment in the fish gut tends to release organic pollutants, transporting them into fatty tissues, thus exposing humans to a variety of toxicants transmitted through fish [57].…”

Section: Chemical Food Safety Hazardsmentioning

confidence: 99%

Safety, Processing, and Utilization of Fishery Products

Samarajeewa

2024

Fishes

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Global marine fish harvests have reached a plateau over the last decade, and efforts to increase aquaculture tend to face limitations in terms of water resources and contamination problems. Of the current fish harvest, at least 50% is discarded as waste. The current situation requires efforts to process, preserve, and utilize the fish capture to minimize waste. Chemical and microbiological contamination limit the utilization of harvested fish. There is a need to improve fish preservation to minimize spoilage and to process them into more appealing products. Instead of resorting to individual food-processing methods, the efficiency of processing could best be increased by a combination of conventional and modern processing methods or by combinations of modern processing methods. Fish waste is a rich source of oils containing essential fatty acids, polypeptides, and amino polysaccharides that could be utilized through the upscaling of current scientifically proven methods to new processing technologies. The separation of collagens, gelatins, bioactive peptides, edible fish oils, and chitosan form the primary stages in the utilization of fish waste. The products need purification to meet food quality and safety standards and to have desirable industrial characteristics. The diversity of information and products generated through new methods require advanced data handling and prediction systems, such as artificial intelligence, to address food safety and to derive the best out of fish processing and utilization.

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Section: Chemical Food Safety Hazardsmentioning

confidence: 99%

Safety, Processing, and Utilization of Fishery Products

Samarajeewa

2024

Fishes

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“…The bigger challenge due to micro‐plastics is their role, in serving as vehicles to transport a variety of organic and inorganic toxic materials into the fish muscles. The degree of adsorption of toxins to micro‐plastics depend on the partition coefficients between the extent of degradation of the plastics, and the composition of the seawater modified by environmental factors (Sewwandi et al., 2022). The high volume to surface area and porosity of the micro‐ and nano‐plastics, make them efficient vehicles in transporting hazardous materials into fish.…”

Section: Chemical Food Safety Hazards In Food‐fishmentioning

confidence: 99%

Emerging challenges in maintaining marine food‐fish availability and food safety

Samarajeewa

2023

Comp Rev Food Sci Food Safe

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The marine finfish and crustaceans contribute immensely to human nutrition. Harvesting marine food‐fish to meet the global demand has become a challenge due to reduction of the fishery areas and food safety hazards associated with increased pre‐harvest and post‐harvest contaminations. The causes of low fish availability and contaminations were reviewed following the published literature from 2000 to 2023. The marine fish yields are stressed due to spread of contaminants triggered by rising sea temperatures, transport of microorganisms by marine vessels across the oceans, anthropogenic activities leading to increase in the toxic microorganisms, and the entry of toxic chemicals and antibiotic residues into the seawater through rivers or directly. Processing adds pyrogenic chemicals to foods. The hazardous materials may accumulate in the food‐fish, beyond tolerance limits permitted for human foods. While the research and control measures focus on minimizing the hazards due to pathogenic microorganisms and chemicals in market fish, there is less discussion on the unhealthy changes occurring in the oceans affecting the quantity and quality of food‐fish, and the origins of microbial and chemical contaminations. This review examines the factors affecting availability of wild food‐fish and increased contaminations. It aims to bridge the knowledge gaps between the spread of hazardous agents in the marine environment, and their effects on the food‐fish. Meeting the future human food security and safety through marine fish and fish products may need marine cage farming, introduction of genetically modified high yielding food‐fish, and cultured contaminant free finless fish muscles as options.

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“…Additionally, MPs may contain various toxic ingredients, including coloring agents, flame retardants, plasticizers, and antioxidants, which can interact with other soil contaminants, such as heavy metals, xenobiotics, and pathogens, owing to their large surface areas (Hahladakis et al, 2018; Halden, 2010; Wang et al, 2020). MPs may also serve as vectors of contaminants for transport within and between ecosystem compartments such as soil and groundwater (Atugoda et al, 2021; Sewwandi et al, 2022), potentially increasing ecological risks to terrestrial plants. Moreover, MPs can accumulate in plants and be trapped on root surfaces or be taken up by roots (Hernández‐Arenas et al, 2021; Jiang et al, 2019; Meng et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Impacts of microplastics on terrestrial plants: A critical review

Sun,

Withana,

Palansooriya

et al. 2024

Land Degrad Dev

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Microplastic (MP) pollution is an important environmental problem owing to its widespread use, long residence time, and overall persistence. MPs threaten the health of humans, animals, and plants. However, studies on the effects of MPs on terrestrial plants are less common compared to those conducted in aquatic systems. This review discusses the sources of MPs in terrestrial ecosystems, their effects on C and N cycling in soils, and the impact of MPs on terrestrial plants, and focuses on plant growth and the potential risks to human health. MPs affect plants and their performance by altering soil structure, microbial activity, nutrient immobilization, transporting contaminants, and causing direct toxicity. Chemicals, such as plasticizers, additives, and colorants, in MPs may negatively affect ecosystems and their inhabitants, and MPs may interact with a wide array of pollutants, including pesticides, heavy metals, and antibiotics. These impacts vary as a function of soil type, plant species, and MP type. Future research efforts should focus on interaction complexity, uptake mechanisms, and impacts on plants at multiple spatiotemporal scales, while concurrently considering their effects on food chains and human health.

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Vector transport of microplastics bound potentially toxic elements (PTEs) in water systems

Cited by 6 publications

References 0 publications

Safety, Processing, and Utilization of Fishery Products

Safety, Processing, and Utilization of Fishery Products

Emerging challenges in maintaining marine food‐fish availability and food safety

Impacts of microplastics on terrestrial plants: A critical review

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