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Table 2 Change of PFCs (ng/g) of fish cake by different treatment conditions

From: Reduction of perfluorinated compound content in fish cake and swimming crab by different cooking methods

Compound Control Blanching time Boiling Frying Stir-frying
5 s 10 s 20 s
PFOA 0.20 ± 0.07a 0.17 ± 0.01a 0.16 ± 0.02a 0.19 ± 0.02a 0.06 ± 0.01b 0.06 ± 0.01b 0.07 ± 0.01b
PFOS 1.29 ± 0.15a 1.19 ± 0.07a 0.94 ± 0.07b 0.87 ± 0.08b 0.93 ± 0.02b 1.16 ± 0.11ab 1.15 ± 0.13ab
PFBA 0.06 ± 0.02b 0.08 ± 0.07a 0.11 ± 0.01ab 0.23 ± 0.16a 0.05 ± 0.02b 0.07 ± 0.00ab 0.10 ± 0.01a
PFPeA 0.13 ± 0.01a 0.12 ± 0.02ab ND ND ND ND ND
PFHxA ND 0.07 ± 0.00a 0.08 ± 0.01a ND ND ND ND
PFHpA 0.08 ± 0.03a 0.09 ± 0.01a 0.09 ± 0.01a 0.07 ± 0.01a ND ND ND
PFNA 0.07 ± 0.01a 0.06 ± 0.01a 0.04 ± 0.01b 0.06 ± 0.01a ND 0.03 ± 0.01b 0.03 ± 0.00b
PFDA 0.07 ± 0.02a 0.06 ± 0.02a 0.07 ± 0.00a 0.05 ± 0.03a ND 0.04 ± 0.01b 0.05 ± 0.00b
PFUnDA 0.23 ± 0.04a 0.20 ± 0.08a 0.19 ± 0.01a 0.17 ± 0.02a 0.15 ± 0.01b 0.18 ± 0.01b 0.17 ± 0.02b
PFDoDA 0.09 ± 0.02a 0.10 ± 0.01a 0.06 ± 0.03ab 0.06 ± 0.00b 0.03 ± 0.00b 0.03 ± 0.01b 0.04 ± 0.00b
PFTrDA 0.43 ± 0.06a 0.54 ± 0.22a 0.36 ± 0.18a 0.27 ± 0.05a 0.31 ± 0.05ab 0.36 ± 0.10ab 0.28 ± 0.07b
PFTeDA 0.24 ± 0.17a 0.12 ± 0.00a 0.15 ± 0.03a 0.09 ± 0.09a 0.07 ± 0.05ab ND 0.05 ± 0.02b
PFBS ND ND ND 0.07 ± 0.04a ND ND ND
PFHxS 0.06 ± 0.03a 0.06 ± 0.01a 0.10 ± 0.04a 0.06 ± 0.00a ND ND ND
L-PFHpS ND ND ND ND ND ND ND
PFDS 0.01 ± 0.01a 0.02 ± 0.01a ND ND ND ND ND
PFOSA ND ND ND ND ND ND ND
MePFOSAA ND ND ND ND ND ND ND
EtPFOSAA ND ND ND ND ND ND ND
Total 2.96 ± 0.65a 2.88 ± 0.44a 2.34 ± 0.34a 2.20 ± 0.31a 1.60 ± 0.16b 1.93 ± 0.19b 1.94 ± 0.07b
  1. PFOA: Perfluorooctanoic acid; PFOS: perfluorooctane sulfonate; PFBA: perfluorobutanoic acid; PFPeA: perfluorpentanoic acid; PFHxA: perfluorhexanoic acid; PFHpA: perfluorheptanoic acid; PFNA: perfluorononanoic acid; PFDA: perfluorodecanoic acid; PFUnDA: perfluoroundecanoic acid; PFDoDA: perfluorododecanoic acid; PFTrDA: perfluorotridecanoic acid; PFTeDA: perfluorotetradecanoic acid; PFBS: perfluorobutane sulfonate; PFHxS: perfluorohexane sulfonate; L-PFHpS: sodium perfluoro-1 heptanesulfonate; PFDS: perfluorodecane sulfonate; PFOSA: perfluorooctane sulfonamide; MePFOSAA: methylperfluoro-1 octanesulfonamido acetic acid; EtPFOSAA: ethyl-perfluoro-1 octanesulfonamido acetic acid
  2. a,bValues with different letters within a row indicate a statistically significant difference (p < 0.05)