Effects of E-Cigarette Flavor Enhancing Capsules on Inhalable Aerosols
This work was supported by the U.S. National Institutes of Health, grant R01ES025257. Research reported was supported by the NIEHS and FDA Center for Tobacco Products (CTP).
Chemical Research in Toxicology
The flavor of inhaled e-cigarette aerosols may be augmented using crushable flavor capsules added to e-cigarettes. For example, Puff Krush contains breakable flavor capsules in a sorbent material. The capsules are crushed, and then, aerosol passes through the saturated sorbent material before inhalation. Herein, we used NMR and GC-MS to identify the capsule medium chain triglyceride (MCT) solvent and flavorants in selected Puff Krush flavor capsules and then determined which molecules from the capsule transfer into aerosols. MCTs from the Puff Krush were not found in the aerosols, and ∼50% of Puff Krush flavorants transferred into the aerosol upon vaping.
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Kerber, P. J., Luo, W., McWhirter, K. J., Powers, M., & Peyton, D. H. (2022). Effects of E-Cigarette Flavor Enhancing Capsules on Inhalable Aerosols. Chemical Research in Toxicology.