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Papers
61,005 resultsShowing papers similar to Detection and characterisation of microplastics in animal feed
ClearRapid detection of microplastics in feed using near-infrared spectroscopy
Researchers tested whether near-infrared spectroscopy could rapidly detect microplastic contamination in animal feed products like corn silage, hay, and soybean meal. The technique successfully identified polyethylene and polystyrene contaminants at concentrations as low as 1 milligram per gram of feed. The study offers a practical, non-destructive screening method that could help protect the food chain from microplastic contamination in livestock nutrition.
Rapid detection of microplastics in chicken feed based on near infrared spectroscopy and machine learning algorithm
Near-infrared (NIR) spectroscopy combined with machine learning was applied to rapidly detect microplastic contamination in chicken feed, achieving accurate classification of contaminated versus non-contaminated samples. The method offered a fast, non-destructive screening tool for monitoring MP contamination in animal feed supply chains.
Developing Methods to Detect Microplastic Contamination in Livestock Feed: Implications for Sustainable Animal Husbandry
Researchers developed and validated methods to detect microplastics in livestock feed as part of a Croatia-Serbia INTERREG project, identifying several polymer types in feed samples and raising concerns about microplastic entry into the food chain through animal agriculture.
Methods for identifying microplastics in food systems
Identifying microplastics in food is technically challenging because food matrices are complex and particles can be very small. This review covers the main methods scientists use — from simple visual inspection to sophisticated techniques like Raman spectroscopy and infrared imaging — and evaluates their strengths and limitations in the context of food safety. The authors conclude that Raman microscopy and Fourier-transform infrared spectroscopy are currently the gold-standard approaches for detecting and confirming the chemical identity of microplastics in food and agricultural products.
Visualized analysis of microplastics in residents' diets and regional investigation of China
Researchers developed an infrared spectral imaging method to detect microplastics in complex food samples without destroying them, then used it to survey dietary microplastic exposure across regions of China. They found microplastics present in a wide variety of foods, with concentrations varying by food type and geographic location. The study provides new data on how much microplastic people may be consuming through their everyday diets.
Presence of Microplastics in Livestock Production: A Challenge for Animal Health and Sustainability
This review examines microplastic contamination in livestock production systems, summarizing evidence of microplastic presence in feed, water, and animal tissues, and discussing implications for animal health, food safety, and sustainability.
The measurement of food safety and security risks associated with micro- and nanoplastic pollution
Researchers reviewed how micro- and nanoplastic pollution enters the human food chain through agricultural systems, raising concerns for food safety and security. They identified major gaps in our ability to assess the risks of plastic contamination in food and feed sources. The study calls for interdisciplinary approaches and better analytical methods to understand and address this growing challenge.
Vědecký článek Jimp1
This review summarized current knowledge about microplastics in animal nutrition, covering their occurrence in feed ingredients and water, routes of exposure in livestock and poultry, and potential physiological and metabolic effects on animal health.
Analysing micro- and nanoplastics with cutting-edge infrared spectroscopy techniques: a critical review
This review evaluates cutting-edge infrared spectroscopy techniques for detecting and analyzing micro- and nanoplastics in environmental and food samples. Better detection methods are crucial for understanding human exposure because they allow scientists to measure smaller particles more accurately, including nanoplastics that are small enough to cross biological barriers and accumulate in human tissues.
Microplastics contamination in ruminant feeds of Northwestern Italy: a preliminary assessment
Researchers measured microplastic contamination in common cattle feeds at dairy farms in northwestern Italy, including corn silage, hay, and high-protein feedstuff. All feed types contained microplastics, with corn silage being the most contaminated at about 38 particles per gram. Since microplastics in animal feed can transfer into meat and dairy products, this finding highlights a potential route of human exposure through the food we eat.
Evaluation of near infrared spectroscopy for direct detection of common microplastics contamination in camel Milk powder
Researchers evaluated near infrared spectroscopy as a rapid, non-destructive method for detecting common microplastic contamination in camel milk powder. The technique successfully distinguished between uncontaminated and contaminated samples spiked with polyethylene, polypropylene, polystyrene, and PET at concentrations as low as 0.01% by weight. The findings suggest NIR spectroscopy could serve as a practical quality control tool for screening microplastic contamination in premium dairy products.
Screening method for differentiation of plastic and non-plastic microparticles contaminating store-bought rice
Researchers tested five brands of store-bought rice and found plastic microparticles in all of them regardless of packaging type, with concentrations as high as 12 particles per gram of rice. Using simple optical microscopy and infrared spectroscopy, the study shows that a low-cost screening method can quickly distinguish true microplastics from other particles like rice starch or cellulose, an important step toward routine food safety monitoring.
Microplastics in manure: Sources, analytical methods, toxicodynamic, and toxicokinetic endpoints in livestock and poultry
Researchers reviewed the occurrence of microplastics in livestock and poultry manure, finding hundreds to thousands of particles per kilogram depending on the animal, with plastic-contaminated feed and mulching films as the primary sources. Because manure is widely spread on farmland as fertilizer, it represents a significant — and underappreciated — pathway for microplastics to enter agricultural soils and ultimately the food chain.
Microplastics retrieval from commercial rice brands in india: Characterization, dietary exposure, and risk assessment
Researchers detected microplastics for the first time in commercial rice brands sold in India, using FT-IR and Raman spectroscopy to identify polymer types. The findings raise concerns about dietary microplastic exposure through one of the world's most widely consumed staple foods.
Development and application of a novel extraction protocol for the monitoring of microplastic contamination in widely consumed ruminant feeds
Researchers developed the first specialized method for detecting microplastics in cattle feed, including corn silage, hay, and mixed rations. They found that 50-60% of foreign objects in slaughtered cattle are plastic-based, and microplastics have been detected in ruminant tissues and feces. Since contaminated feed is a likely source, this detection method is important for understanding how microplastics enter the meat supply chain and potentially reach human consumers.
Impact of Microplastics on Livestock: Sources, Exposure Pathways, and Physiological Consequences
This review examined how microplastics enter livestock systems through contaminated soil, water, and feed, and assessed the resulting risks to animal health, food safety, and agricultural sustainability. The review highlights that livestock exposure pathways are numerous and that microplastic contamination of the food chain is a growing concern.
Occurrence of Microplastics in Fish and Shrimp Feeds
Researchers found microplastic contamination in commercial fish and shrimp feeds, detecting particles averaging in the 20 µm to 5 mm size range using density separation and micro-FTIR analysis, raising concerns about microplastic exposure in aquaculture systems.
Set up and validation of a method to analyse microplastics in stool and small intestine samples
Researchers developed and validated practical methods for extracting and identifying microplastics from human stool samples and pig intestinal tissue. Using gentle chemical and enzyme-based digestion followed by infrared spectroscopy, they successfully detected multiple polymer types including polyethylene, polypropylene, and polystyrene, providing tools for studying microplastic exposure in the human digestive system.
The sources and impact of microplastic intake on livestock and poultry performance and meat products: a review
This review examined how microplastics affect livestock and poultry health, productivity, and the safety of meat products. Researchers found that while lab experiments show microplastics can cause oxidative stress and inflammation at high concentrations, it remains unclear whether typical environmental exposure levels affect animal welfare or productivity. Microplastics were detected in animal tissues at levels that raise potential consumer safety concerns, though current detection methods are prone to contamination.
Bioanalytical approaches for the detection, characterization, and risk assessment of micro/nanoplastics in agriculture and food systems
This review examines bioanalytical methods for detecting micro- and nanoplastics throughout the agricultural and food supply chain, covering techniques from microscopy and spectroscopy to emerging approaches for characterizing plastic contamination and assessing associated risks.
Recent Advances in Spectroscopic Techniques for the Analysis of Microplastics in Food
This review summarizes recent advances in spectroscopic techniques for detecting and identifying microplastics in food products. Researchers evaluated methods including FTIR, Raman spectroscopy, and emerging hyperspectral imaging approaches for analyzing microplastics of various sizes, shapes, and materials. The study highlights the strengths and limitations of each technique and identifies gaps in our ability to reliably assess microplastic contamination in the food supply.
Quantitative and Qualitative Assessment of Microplastics in Drinking Water, Raw Materials, and Animal Feed Additives
Researchers assessed microplastic contamination in drinking water, feed ingredients, and complete diets at two dairy farms in Iran. The study found large numbers of microplastics of varying sizes and colors in feedstuffs, estimating that each cow ingests over 5,000 microplastic particles daily through their feed, raising concerns about potential transfer through the food chain.
Detection of diverse microplastic polymers in human breast milk
Researchers detected microplastics in human breast milk samples using ATR-FTIR spectroscopy, identifying a range of polymer types including polyethylene, polypropylene, and others, raising concerns about infant exposure to plastics during breastfeeding.
Label-Free Identification and Imaging of Microplastic and Nanoplastic Biouptake Using Optical Photothermal Infrared Microspectroscopy
Researchers developed a new imaging technique that can locate and identify microplastic and nanoplastic particles inside whole organisms without needing fluorescent labels. Using a method called optical photothermal infrared microscopy, they tracked polystyrene particles as small as 1 micrometer in roundworms. This tool could help scientists better understand how plastic particles are taken up by living things and where they accumulate in the body.