Migration of polycyclic aromatic compounds from food storage containers to food

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dc.contributor.authorSambanthan, Saarankah (Sara)
dc.contributor.examiningcommitteeStetefeld, Jorg (Chemistry)
dc.contributor.examiningcommitteeTittlemier, Sheryl (Chemistry)
dc.contributor.examiningcommitteeKuss, Christian (Chemistry)
dc.contributor.supervisorTomy, Gregg
dc.date.accessioned2025-01-15T14:45:44Z
dc.date.available2025-01-15T14:45:44Z
dc.date.issued2024-12-19
dc.date.submitted2024-12-19T22:02:10Zen_US
dc.date.submitted2025-01-14T22:11:41Zen_US
dc.degree.disciplineChemistry
dc.degree.levelMaster of Science (M.Sc.)
dc.description.abstractMy thesis was geared towards understanding the migration of a suite of polycyclic aromatic compounds (PACs) from commercially available plastic containers. The literature is replete with examples of chemicals that can migrate of from plastics (e.g., bisphenol-A, flame retardants) but to my knowledge a comprehensive study on PAC migration from different plastic types has not been reported. This is surprising considering that most of the plastics in commerce are derived from crude-oil and PACs are known to be one of the main contaminants in crude-oil. Furthermore, many PACs are known to cause negative health outcomes in wildlife. To understand PAC migration from plastics, I took four plastic-types and incubated them separately at 40oC with dichloromethane and olive-oil. At prescribed time-points I sampled the incubation media and measured PACs using gas chromatography tandem mass spectrometry. I was able to detect several polycyclic aromatic hydrocarbons (PAHs) and their alkylated derivatives. I also was able to report the rate of migration of four PAHs from high-density polyethylene. My work is important because in addition to reporting the migration of many PACs from plastics for the first time, it also provides evidence for a poorly studied route of human exposure to these compounds and further impetus for investigation into biopolymers and other renewable plastic derivatives.
dc.description.noteFebruary 2025
dc.identifier.urihttp://hdl.handle.net/1993/38808
dc.language.isoeng
dc.subjectpolycyclic aromatic compounds
dc.subjectpolycyclic aromatic hydrocarbons
dc.subjectalkylated polycyclic aromatic hydrocarbons
dc.titleMigration of polycyclic aromatic compounds from food storage containers to food
local.subject.manitobano
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