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Chewing Gum Could Release Microplastics Into Saliva, Study Finds – EcoWatch

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Each pure and artificial chewing gums launched microplastics into saliva in a UCLA research. JenD / E+ / Getty Photographs

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Based in 2005 as an Ohio-based environmental newspaper, EcoWatch is a digital platform devoted to publishing high quality, science-based content material on environmental points, causes, and options.

Based on a brand new research at present present process peer overview, chewing gum might be a supply of ingested microplastics. Researchers discovered that chewing gum may launch hundreds of microplastic particles into saliva over time, rising the possibility of ingestion.

“Our purpose is to not alarm anyone,” Sanjay Mohanty, principal investigator of the research and an engineering professor on the College of California, Los Angeles (UCLA), mentioned in an announcement. “Scientists don’t know if microplastics are unsafe to us or not. There are not any human trials. However we all know we’re uncovered to plastics in on a regular basis life, and that’s what we needed to look at right here.”

Scientists analyzed 5 manufacturers of pure and 5 manufacturers of artificial chewing gums to find out potential for microplastic shedding. Whereas artificial chewing gums are made with rubbery, petroleum-based polymers, pure gum varieties depend on plant-based polymers for that chewable texture, with the polymers usually coming from tree sap.

“Our preliminary speculation was that the artificial gums would have much more microplastics as a result of the bottom is a kind of plastic,” mentioned Lisa Lowe, a graduate pupil at UCLA who’s presenting the analysis this week on the American Chemical Society spring assembly.

In a single experiment within the research, every gum pattern was chewed for 4 minutes, with saliva samples pulled each 30 seconds. After chewing, the particular person rinsed their mouth with water and that too grew to become a pattern. For an additional experiment, researchers collected saliva samples a number of instances all through a 20-minute timeframe and measured the microplastic quantities in every pattern.

Whereas researchers had anticipated to seek out extra microplastic shedding from artificial gums, each pure and artificial merchandise led to comparable quantities of microplastics launched into saliva, usually inside simply 2 minutes of chewing the gum. Each pure and artificial gums had the identical polymers, most of which have been polyolefins. Because the American Chemical Society reported, this group of plastics incorporates plastic sorts similar to polyethylene (PE) and polypropylene (PP).

The group discovered a median of 100 microplastics shed into saliva for every gram of gum. Some items of gum launched as much as 637 microplastics per gram. 

Primarily based on the calculations of a gram of gum weighing between 2 and 6 grams, the researchers decided {that a} single stick of gum may launch as much as 3,000 microplastics, and for routine gum-chewers, this might add as much as 10,000 microplastics shed into saliva per yr. 

As Reuters reported, people ingest round 5 grams of microplastics per week, and the brand new analysis revealed that chewing gum may contribute to the quantity of ingested plastic particles.

To reduce ingestion, the researchers advisable chewing one piece of gum for longer versus swapping in new sticks of gum extra incessantly, primarily based on their findings that 94% of the collected microplastics have been launched inside 8 minutes of chewing.

However the findings additionally revealed that individuals ought to keep away from discarding gum into environments, the place further microplastics might be shed and the polymer-based gum itself may turn into a chunk of air pollution.

“The plastic launched into saliva is a small fraction of the plastic that’s within the gum,” Mohanty mentioned in an announcement. “So, be conscious concerning the atmosphere and don’t simply throw it exterior or stick it to a gum wall.”

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By signing up, you comply with the Phrases of Use and Privateness Coverage & to obtain digital communications from EcoWatch Media Group, which can embody advertising and marketing promotions, commercials and sponsored content material.

Primarily based in Los Angeles, Paige is a author who’s captivated with sustainability. She earned her Bachelor’s diploma in Journalism from Ohio College and holds a certificates in Girls’s, Gender and Sexuality Research. She additionally specialised in sustainable agriculture whereas pursuing her undergraduate diploma.



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