Four studies investigate bisphenol (BP) migration from food packaging and human health effects; demonstrate wide presence of 11 bisphenols in polystyrene take-out food containers from China, Canada, and Poland; report material quality influences BPA migration from polycarbonate cups; indicate higher BPA migration from lined cans than plastic packaging into meat based on probabilistic models; find bisphenols A, F, and S induce genotoxic effects and changes in human endogenous retroviruses (HERVs) expression using human blood cells
Plastic recycling: company commitments and chemical safety challenges
Scientists report most large companies commit to reducing plastic pollution but focus on recycling; extrusion of recycled materials and legacy compounds in recycled materials as safety challenge; some substances increase others decrease with the increase in recycled content in polyethylene terephthalate (PET) bottles; tentatively identify 212 volatile chemicals in 57 different recycled PET flakes available in China; present migration model to characterize the exposure and risk of PET oligomers
Summer 2023 research snapshot: PFAS in food packaging, food, and potential health impacts
A summary of eight studies; scientists quantify per- and polyfluoroalkyl substances (PFAS) in French fast food packaging; detect eleven PFAS in baking trays from China but not Spain; find PFAS in straws made of paper, bamboo, glass, and plastic; “compostable” service ware can contaminate compost with PFAS; find PFAS in edible oil worldwide; further articles focus on PFAS in drinking water, in Asia, and effects on child respiratory health
New research on chemical migration from plastic, paper, can coating, and reusables
Recent reports investigate whitening agents’ migration from disposable plastic containers; characterize 153 chemicals migrating from paper packaging and show estimated dietary exposure for children to per- and polyfluorinated alkyl substances (PFAS) exceed safety threshold; detect brominated flame retardants in repeat-use food contact articles; review metal can coating literature concerning coatings types, chemical migrants, detection methods, dietary exposure, and regulatory
Several studies determine chemical migration from food packaging
Researchers from several European and Chinese institutions develop methods to explore chemicals in food contact materials (FCMs); report styrene migration from different polystyrene FCMs into several food matrices; detect photoinitiators in paper FCMs and chlorinated paraffins in green tea and its packaging; find irradiation treatment of metalized polypropylene to reduce migration of tested chemicals
Microplastics in placentas: occurrence, sources, and effects
Three studies on microplastics and the human placenta; demonstrate particle presence in several intracellular compartments of placentas for the first time; assume breastfeeding and plastic toy usage as microplastic exposure sources to lactating infants; associate placental plastics with reduced fetal growth
Studies assess PFAS, OPEs, and plasticizers in paper & board
Review summarizes per- and polyfluoroalkyl substances (PFAS) migration from paper food packaging into food and food simulants and identifies dietary exposure of PFAS as potential human health risk; study highlights need to further evaluate organophosphate esters (OPEs) and prohibited PFAS in paper and aluminum foil food packaging; scientists analyze and recommend extraction method to assess plasticizers in recycled paperboard
Studies detect microplastics in food and link it to packaging, processing equipment
Several articles published since the beginning of 2023 have analyzed plastic particles in packaged foods and beverages, including salt, sugar, canned fish, bottled water, soft drinks, and cold tea; draw a connection to packaging and food processing; migration studies demonstrate particle release from plastic food containers and breastmilk storage bags; review develops 10 criteria for data quality assessment and find most studies “unreliable” on one or more criteria