Microplastic in cultured oysters from different coastal areas of China

Jiang, Teng; Wang, Qing; Ran, Wen; Wu, Di; Liu, Yanfang; Sun, Shan; Liu, Hui; Cao, Ruibing; Zhao, Jianmin

doi:10.1016/j.scitotenv.2018.11.057

Cited by 272 publications

(94 citation statements)

References 55 publications

(76 reference statements)

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“…Another 37% consisted of rayon and cotton, the latter partly a blend of cotton and olefin, and in all cases was interpreted as originating from anthropogenic sources [35]. Oysters of 17 locations along the Chinese coast were found to contained 0.62 (range: 0.14-2.35) MP particles gram −1 tissue (ww) or 2.93 MPs per individual oyster [36]. The minimum size as reported was 20 µm.…”

Section: Occurrence and Concentrations In The Food Production Chainmentioning

confidence: 93%

Current Insights into Monitoring, Bioaccumulation, and Potential Health Effects of Microplastics Present in the Food Chain

Raamsdonk

Zande

Koelmans

et al. 2020

Foods

169

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Microplastics (MPs) are considered an emerging issue as environmental pollutants and a potential health threat. This review will focus on recently published data on concentrations in food, possible effects, and monitoring methods. Some data are available on concentrations in seafood (fish, bivalves, and shrimps), water, sugar, salt, and honey, but are lacking for other foods. Bottled water is a considerable source with numbers varying between 2600 and 6300 MPs per liter. Particle size distributions have revealed an abundance of particles smaller than 25 µm, which are considered to have the highest probability to pass the intestinal border and to enter the systemic circulation of mammals. Some studies with mice and zebrafish with short- or medium-term exposure (up to 42 days) have revealed diverse results with respect to both the type and extent of effects. Most notable modifications have been observed in gut microbiota, lipid metabolism, and oxidative stress. The principal elements of MP monitoring in food are sample preparation, detection, and identification. Identified data gaps include a lack of occurrence data in plant- and animal-derived food, a need for more data on possible effects of different types of microplastics, a lack of in silico models, a lack of harmonized monitoring methods, and a further development of quality assurance.

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Section: Occurrence and Concentrations In The Food Production Chainmentioning

confidence: 93%

Current Insights into Monitoring, Bioaccumulation, and Potential Health Effects of Microplastics Present in the Food Chain

Raamsdonk

Zande

Koelmans

et al. 2020

Foods

169

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show abstract

“…Thus, posing a threat to the survival of several marine species. Moreover, trophic transfer of microplastics could pose a major pathway for microplastics to reach top predators (16) and, ultimately, humans through contaminated seafood consumption (17).…”

Section: Introductionmentioning

confidence: 99%

Microplastic abundance in three commercial fish from the coast of Lima, Peru

De-la-Torre¹,

Dioses-Salinas²,

Pérez-Baca³

et al. 2019

Braz. J. Nat. Sci

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Microplastics (< 5 mm) are widespread within the marine environment, posing a major threat to marine biota. The aim of the present study was to investigate microplastic contamination in three widespread and highly commercial fish from the coast of Lima, Peru. Peruvian silverside (Odontesthes regia), Peruvian morwong (Cheilodactylus variegatus), and Peruvian grunt (Anisotremus scapularis) specimens were caught off the coast of Lima. Fish stomach and intestines were extracted and submerged in 10% (w/v) KOH, followed by 24 h incubation at 60 °C. The resulting supernatant solution was vacuum filtrated and filters were then observed under an optical microscope and stereomicroscope. Strict quality control and external contamination prevention measures were taken. Microplastic abundance, type and color were recorded. Quality control measures resulted in reduced external contamination. C. variegatus was the most contaminated fish (5.13 ± 0.81 MP/individual), similar to A. scapularis (5.00 ± 0.46 MP/individual), but significantly different to O. regia (0.43 ± 0.11 MP/individual). Fibers were the overall most abundant microplastic type, while blue the dominant color. Results indicated highly contaminated fish, compared to those from other parts of the SE Pacific. Microplastic ingestion by C. variegatus and A. scapularis may be subject to trophic transfer from their natural prey. Highly populated cities and poor solid waste management may contribute to worsen microplastic ingestion by native marine species. The need for further research and a marine microplastic monitoring program was discussed.

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“…Environmental pollutions caused by plastics wastes is one of global problems that needs serious concerns. The plastics wastes found in ground water and even inside the digestive system of sea animals in recent days, in the form of either macro-or micro-plastics (Frias & Nash, 2019), is a problem not only in Indonesia but also around the globe (Botterell et al, 2019;Cho et al, 2019;Guzzetti et al, 2018;Karthik et al, 2018;Li et al, 2019;Rainieri & Barranco, 2018;Slootmaekers et al, 2019;Teng et al, 2019;Wang et al, 2019;Windsor et al, 2019). Apart from development of recycling technologies for non-biodegradable plastics (Horodytska et al, 2018;Mwanza et al, 2018;Ragaert et al, 2017;Silveira et al, 2018;Thakur et al, 2018), development of biodegradable plastics (Chinaglia et al, 2018) is one of important solutions in coping with plastics wastes.…”

Section: Introductionmentioning

confidence: 99%

Biodegradable plastics from linier low-density polyethylene and polysaccharide: The influence of polysaccharide and acetic acid

Nurhajati¹,

Pidhatika²,

Harjanto³

2019

MKKP

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Global problems associated with conventional, non-biodegradable plastics have urged the society to use more ecofriendly biodegradable plastics. In this study, linear low-density polyethylene (LLDPE) was co-compounded with cassava-based thermoplastic starch (TPS) to prepare biodegradable plastics (i.e. plastics that can be degraded by microbes), in which three different LLDPE/TPS ratios were studied. Acetic acid was used to hydrolyze the polysaccharides by breaking the branched amylopectin that causes the TPS-containing composites brittle and stiff. The biodegradation properties of the LLDPE/TPS composites were determined by observing the level of microbial growth on the sample surface after incubation with potato dextrose agar medium that was inoculated with Penicillium sp. and Aspergillus niger. Burial test in a humid composting medium was also performed to validate the biodegradation properties. The mass change (%) was calculated in relative to the initial mass before burial test. The physical properties (tensile strength and elongation at break) of the bioplastics were determined using universal testing machine before and after burial treatment. The morphology of the sample surface was evaluated using scanning electron microscopy. The results showed that the microbial growth increases with increasing TPS content. Negative mass changes were observed on all samples that contain TPS, with increase in the magnitude with increasing TPS content. The tensile strength tends to increase in the first 28 days of burial period in a composting medium then decreases and plateaus, while the elongation at break decreases with increasing burial period. Moreover, samples that contain acetic acid showed less microbial attachment and less biodegradation compared to samples that does not contain acetic acid.

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Microplastic in cultured oysters from different coastal areas of China

Cited by 272 publications

References 55 publications

Current Insights into Monitoring, Bioaccumulation, and Potential Health Effects of Microplastics Present in the Food Chain

Current Insights into Monitoring, Bioaccumulation, and Potential Health Effects of Microplastics Present in the Food Chain

Microplastic abundance in three commercial fish from the coast of Lima, Peru

Biodegradable plastics from linier low-density polyethylene and polysaccharide: The influence of polysaccharide and acetic acid

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