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5079808 
Journal Article 
Do conventional cooking methods alter concentrations of per- and polyfluoroalkyl substances (PFASs) in seafood? 
Taylor, MD; Nilsson, S; Bräunig, J; Bowles, KC; Cole, V; Moltschaniwskyj, NA; Mueller, JF 
2019 
Yes 
Food and Chemical Toxicology
ISSN: 0278-6915
EISSN: 1873-6351 
127 
280-287 
English 
Per-and poly-fluoroalkyl substances (PFASs) are bioaccumulative chemicals of emerging concern. Some PFASs accumulate in seafood, and can contribute to dietary exposure. Previous work has suggested cooking seafood decreases concentrations of neutral organic contaminants, however, previous studies dealing with PFASs have shown conflicting results. In this study, the potential changes of PFAS concentrations as a result of boiling, frying and baking are systematically examined. Blue Swimmer Crab (Portunus armatus), Dusky Flathead (Platycephalus fuscus) and School Prawn (Metapenaeus macleayi) were obtained from near a known PFAS point source and a reference location (affected by diffuse sources). Raw and cooked samples were analysed for commonly found PFASs. Of 23 target analytes, PFOS was the most frequently detected compound. PFOS, PFHxS and PFOA concentrations in School Prawn effectively doubled after boiling, and PFOS increased when Dusky Flathead was baked. There was no significant difference in PFOS concentration when Dusky Flathead was fried, or when the Blue Swimmer Crab was boiled. PFHxS and PFOA concentrations in Blue Swimmer Crab effectively halved after boiling. Increase in PFAS concentrations possibly arise from mass loss during the cooking process. Our data show that cooking does not consistently reduce PFAS concentrations, and cannot mitigate dietary exposure. 
human health; tolerable daily intake; bioaccumulation 
PFAS
• Additional PFAS (formerly XAgency)
• Expanded PFAS SEM (formerly PFAS 430)
     Litsearch: September 2019
          Web of Science
     Not prioritized for screening
     Perfluorooctane
• PFAS 150
     Literature Search Update December 2020
          PubMed
          WOS
     Literature Search August 2019
          PubMed
          Web of Science
     Not prioritized for screening
     Perfluorohexanesulfonic acid
     Perfluorooctane
     Perfluorooctanesulfonic acid
• PFAS Universe
     Data Source
          Web of Science
          Pubmed
     Perfluorohexanesulfonate
     Perfluorohexanesulfonic acid
     Perfluorooctane
     Perfluorooctanesulfonate
     Perfluorooctanesulfonic acid
     Perfluorooctanoate
     Sodium perfluorohexanesulfonate
     Perfluorooctanoic acid
• PFHxS
     Database searches
          Pubmed
          WOS
          Scopus
     Supplemental
          TiAb
          Exposure assessment or characterization (no health outcome)
          Environmental fate or occurrence (including food)
     Literature Search Update April 2023
          Supplemental
               Exposure assessment or characterization (no health outcome)
               Environmental fate or occurrence (including food)
OW - HHRAB
• PFOA (335-67-1) and PFOS (1763-23-1)
     Literature Search Update (2013-2019)
          PubMed