We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Papers
61,005 resultsShowing papers similar to Analysis of microplastics released from plastic take-out food containers based on thermal properties and morphology study
ClearAnalysis of microplastics released from plastic take-out food containers based on thermal properties and morphology study
This study measured microplastics released from three types of plastic take-out food containers — polypropylene, polyethylene, and expanded polystyrene — when filled with hot water. Expanded polystyrene released the most particles by far (up to 2.8 million per liter), and over 96% of particles from all containers were smaller than 10 micrometers, small enough to be absorbed into the gut.
Microplastics in take-out food containers
Scientists collected take-out food containers made from four polymer types in five Chinese cities and detected microplastics in all containers, with fragment counts and polymer compositions varying by container material and city of origin.
Release of Nanoplasticsfrom Polypropylene Food Containersinto Hot and Cold Water
Researchers investigated the release of nanoplastics (particles <1 µm) from Australian polypropylene food containers into both hot and cold water. Hot water exposure substantially increased nanoplastic release compared to cold water, raising concerns about food safety when heating food in plastic containers.
Quantification of microplastics released from plastic food containers during rinsing and migration by pyrolysis-gas chromatography/mass spectrometry
Researchers measured microplastics released from plastic food containers during normal rinsing and when exposed to different food types and temperatures. All containers released microplastics matching their material, and high-fat foods, extreme temperatures, and longer exposure times increased the amount released. This study confirms that plastic food packaging is an important and direct source of microplastic exposure for people through their everyday meals.
Evaluating microplastic emission from takeaway containers: A Micro-Raman approach across diverse exposure scenarios
Researchers tested how many microplastics are released from common takeaway food containers made of polypropylene, polystyrene, and PET when exposed to different temperatures and acidic conditions. PET and polystyrene containers released microplastics under all conditions, with significantly more released at high temperatures (100 degrees Celsius). Notably, polypropylene containers released no detectable microplastics, suggesting they may be a safer choice for hot food and beverages.
Release of Nanoplastics from Polypropylene Food Containers into Hot and Cold Water
Researchers tested polypropylene food storage containers and found they release both nanoplastics and microplastics into water, with significantly higher amounts released when hot water at 90 degrees Celsius was used compared to room temperature. The nanoplastics ranged from 122 to 397 nanometers in size and were chemically confirmed as polypropylene. The study provides direct evidence of nanoplastic exposure from everyday food container use and highlights the importance of including these tiny particles in health risk assessments.
Microplastics in Widely Used Polypropylene-Made Food Containers
Researchers found that all 210 polypropylene takeout food containers sampled from seven Chinese cities contained microplastics, with 3 to 43 particles per container, suggesting widespread human exposure to microplastics through commonly used food packaging.
Microplastics in polystyrene-made food containers from China: abundance, shape, size, and human intake
Researchers analyzed polystyrene food containers sold in China for microplastic contamination, examining the abundance, shape, and size of particles released. The study found that these containers shed microplastics during normal use, with hot liquids and acidic foods increasing the amount of plastic released. The results raise concerns about daily microplastic exposure from common food packaging.
Micro (nano) Plastics Released from Plastic Food Containers
Researchers found that plastic food containers release micro- and nanoplastics into food under both hot-water and microwave heating, with the quantity increasing with repeated reuse, raising concerns about dietary exposure from everyday kitchen plastics.
Nanoplastic release from disposable plastics: Correlation with maximum service temperature
Testing five types of disposable plastics confirmed that nanoplastic release correlates with maximum service temperature, with materials used beyond their temperature limits releasing significantly more nanoplastics when packaging hot food, cooking in ovens, or using microwaves.
Simulation and Characterization of Nanoplastic Dissolution under Different Food Consumption Scenarios
Researchers found that nanoplastics leached from polypropylene, polyethylene, and casting polypropylene food packaging when exposed to hot water at 100-121 degrees Celsius, suggesting that hot beverages and takeaway food may be significant sources of nanoplastic ingestion.
Microplastic Release from Single-Use Plastic Beverage Cups
This study measured microplastic release from four types of single-use beverage cups and found that hotter liquids and longer contact times caused significantly more particles to be released into the water. Expanded polystyrene cups released the most microplastics, meaning that drinking hot beverages from disposable plastic cups is a direct source of microplastic ingestion for people.
Disposable plastic materials release microplastics and harmful substances in hot water
Researchers tested whether disposable plastic items release particles when exposed to hot water, mimicking everyday use with hot food and drinks. They found that a single exposure to boiling water released over a million submicron and microplastic particles per milliliter from common disposable containers. The study also detected harmful chemical substances in the leachate, suggesting that routine use of disposable plastics with hot beverages poses an underrecognized exposure risk.
Nanoplastics from disposable paper cups and microwavable food containers
Researchers found that disposable paper cups coated with low-density polyethylene released up to 26 times more nanoplastics than polylactic acid-coated cups, and that hot water exposure substantially increased nanoplastic release from both cup types.
Release of microplastics from commonly used plastic containers: Combined meta-analysis and case study
This meta-analysis pooled data from 30 studies and found that plastic cups and containers release significantly more microplastics at higher temperatures. Hot drinks and heated food containers can release hundreds to millions of particles per use, depending on the plastic type. This is a practical health concern — it suggests that letting hot beverages cool before drinking from plastic containers, or switching to glass or ceramic, could reduce your microplastic intake.
Determination of microplastic release from disposable plastic containers in Isfahan
Researchers tested how disposable polystyrene food containers release microplastics into food, finding that higher temperatures and stirring with a spoon both significantly increased the amount released. At the highest temperature tested (120 degrees Celsius) with spoon contact, the containers released nearly twice as many microplastics, highlighting everyday food preparation as a significant source of plastic exposure.
Time-dependent release kinetics of nano plastics from disposable cups
Researchers investigated how nanoplastics leach from disposable polystyrene cups over time, characterizing the kinetics of particle release as a function of temperature and exposure duration. The study found that even common single-use cups release nanoplastic particles into beverages, representing a direct human exposure route.
Quantitative analysis of polystyrene microplastic and styrene monomer released from plastic food containers
Researchers analyzed how polystyrene food containers release microplastics and styrene monomers under everyday conditions like heating and UV exposure. They found that containers released significant amounts of both microplastic particles and chemical compounds that could enter food. The study raises concerns about human exposure to microplastics through common disposable food packaging.
Migration testing of microplastics from selected water and food containers by Raman microscopy
Researchers tested microplastic migration from common food and water containers made of polypropylene, PET, and polystyrene under FDA-guided conditions. The study found that hundreds of thousands of microplastic particles per liter can be released, with higher temperatures, fatty food simulants, and direct microwave heating significantly increasing particle release, suggesting that everyday food container use may be a notable source of microplastic exposure.
Quantification and size classification of Microplastics leached from disposable beverage cups
This study investigated the size and quantity of microplastic particles leached from disposable paper cups into hot beverages, finding that common paper cups release microplastics measurable by size classification. The research quantified the contamination risk posed by single-use beverage cups to people who regularly drink hot liquids.
Time-dependent release kinetics of nano plastics from disposable cups
This study investigated the time-dependent leaching of nanoplastics from disposable polystyrene cups into hot beverages, quantifying particle release as a function of contact duration and temperature. Results showed cups release nanoplastics over time at levels that represent a direct and repeated human ingestion exposure.
Nanoplastics release from polystyrene foam containers
Researchers found that polystyrene foam instant noodle containers release significantly more nanoplastics when exposed to hot water above 70°C, and that residual oil from fried noodles amplifies particle release tenfold by physically damaging the foam's cellular structure, raising food safety concerns about this common packaging.
Microplastics and other harmful substances released from disposable paper cups into hot water
Researchers tested how hot water interacts with the plastic lining inside disposable paper cups and found that the cups released thousands of microplastic particles into the liquid within minutes of exposure. The polyethylene film coating degraded when exposed to hot water at typical beverage temperatures, releasing both microplastics and other potentially harmful chemical compounds. The study suggests that drinking hot beverages from disposable paper cups may be a significant source of human microplastic ingestion.
Microplastics in take-out food: Are we over taking it?
This study measured microplastic abundance and characteristics in 146 take-out food samples including rice, noodles, bubble tea, and coffee from disposable containers. The mean abundance was 639 microplastics per kilogram, with rice having the highest contamination, and the majority were fragments and fibers consistent with packaging and handling materials.