Identification and quantification of potential microplastics in shellfish harvested in Sardinia (Italy) by using transillumination stereomicroscopy.

IF 1.8 Q3 FOOD SCIENCE & TECHNOLOGY Italian Journal of Food Safety Pub Date : 2022-12-05 DOI:10.4081/ijfs.2022.10738
Giuseppa Lorenzoni, Rita Melillo, Alessandro Graziano Mudadu, Gabriella Piras, Simona Cau, Katia Usai, Luisa Corda, Sara Salza, Tiziana Tedde, Bruna Vodret, Sebastiano Virgilio, Domenico Meloni
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Abstract

Plastics are non-biodegradable polymers made up of different groups of petrochemical materials. Several biotic and abiotic factors can change the density of plastic fragmenting it and originating microplastics (MPs). MPs have been defined as small pieces of plastic less than 5 mm in size. Due to their small size, they are an emerging concern in the marine environment since they can be ingested by aquatic organisms, especially filter-feeding organisms, such as bivalve mollusks. Impacts of MPs exposure have been shown at various levels of biological organization, from cellular to tissue to individual and population levels. For example, oxidative stress and inflammation have been observed in copepods and mussels, obstruction and physical damage of the digestive tract were found in fish and swimming behavior alterations, disruption of foraging and feeding behavior and overall reduced fitness and survival were observed in fish and oysters. In addition, MPs can act as a vector for the transfer of chemicals to marine biota. The aim of the present study was the identification and quantification of potential MPs in shellfish harvested in Sardinia (Italy) by using transillumination stereomicroscopy. Bivalves were collected from 4 of the main production areas located along the Sardinian coast and selected according to the principles of the risk assessment. The results of the present study demonstrated the presence of potential MPs in 70% of the analyzed samples: the presence of MPs in bivalve mollusks may pose a threat to food safety, and there is an urgent need to evaluate the potential risks of MPs to human health.

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利用透照立体显微镜鉴定和定量意大利撒丁岛捕捞的贝类中潜在的微塑料。
塑料是由不同种类的石化材料组成的不可生物降解的聚合物。一些生物和非生物因素可以改变塑料的密度,使其破碎并产生微塑料(MPs)。MPs被定义为尺寸小于5毫米的小塑料块。由于它们的体积小,它们可以被水生生物,特别是双壳类软体动物等滤食性生物摄入,因此在海洋环境中引起了人们的关注。暴露于多磺酸粘多糖的影响已在生物组织的各个层面得到证实,从细胞到组织再到个体和群体水平。例如,在桡足类动物和贻贝中观察到氧化应激和炎症,在鱼类和游泳行为改变中发现消化道阻塞和物理损伤,在鱼类和牡蛎中观察到觅食和摄食行为的破坏以及整体健康和存活率的降低。此外,MPs可以作为将化学品转移到海洋生物群的载体。本研究的目的是利用透照立体显微镜对意大利撒丁岛捕获的贝类中潜在的MPs进行鉴定和定量。从撒丁岛沿岸的4个主要生产区收集了双壳类,并根据风险评估原则进行了选择。本研究结果表明,在70%的分析样本中存在潜在的MPs:双壳类软体动物中存在MPs可能对食品安全构成威胁,迫切需要评估MPs对人类健康的潜在风险。
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来源期刊
Italian Journal of Food Safety
Italian Journal of Food Safety FOOD SCIENCE & TECHNOLOGY-
CiteScore
2.50
自引率
0.00%
发文量
37
审稿时长
10 weeks
期刊介绍: The Journal of Food Safety (IJFS) is the official journal of the Italian Association of Veterinary Food Hygienists (AIVI). The Journal addresses veterinary food hygienists, specialists in the food industry and experts offering technical support and advice on food of animal origin. The Journal of Food Safety publishes original research papers concerning food safety and hygiene, animal health, zoonoses and food safety, food safety economics. Reviews, editorials, technical reports, brief notes, conference proceedings, letters to the Editor, book reviews are also welcome. Every article published in the Journal will be peer-reviewed by experts in the field and selected by members of the editorial board. The publication of manuscripts is subject to the approval of the Editor who has knowledge of the field discussed in the manuscript in accordance with the principles of Peer Review; referees will be selected from the Editorial Board or among qualified scientists of the international scientific community. Articles must be written in English and must adhere to the guidelines and details contained in the Instructions to Authors.
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