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Table 3 Effect of soaking for 1 h in different concentrations of salt solution on the reducing the PFCs (ng/g) in swimming crab

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

Compound Control Crab meat
Distilled water 10% salt solution 15% salt solution
PFOA 12.49 ± 0.90a 4.28 ± 0.11c 6.14 ± 0.22b 5.83 ± 0.22b
PFOS 7.68 ± 0.10a 5.16 ± 0.13b 3.72 ± 0.09c 5.10 ± 0.14b
PFBA 0.73 ± 0.02a 0.52 ± 0.02b 0.45 ± 0.03c 0.49 ± 0.05bc
PFPeA 0.09 ± 0.01a ND 0.11 ± 0.00ab 0.13 ± 0.02a
PFHxA 0.06 ± 0.00a ND ND 0.05 ± 0.01b
PFHpA 0.41 ± 0.01a 0.1 ± 0.00d 0.16 ± 0.01b 0.12 ± 0.01c
PFNA 1.87 ± 0.08a 0.97 ± 0.07c 1.07 ± 0.01c 1.35 ± 0.02b
PFDA 0.92 ± 0.05a 0.63 ± 0.05b 0.52 ± 0.02c 0.63 ± 0.02b
PFUnDA 1.54 ± 0.02a 0.94 ± 0.04c 1.12 ± 0.02b 0.84 ± 0.03d
PFDoDA 0.61 ± 0.02a 0.26 ± 0.01c 0.31 ± 0.01b 0.25 ± 0.01c
PFTrDA 2.42 ± 0.25a 1.69 ± 0.07b 1.76 ± 0.12b 1.33 ± 0.03c
PFTeDA 0.68 ± 0.03a 0.38 ± 0.01c 0.43 ± 0.03b 0.38 ± 0.01c
PFBS 0.08 ± 0.01a 0.09 ± 0.01a 0.06 ± 0.01b ND
PFHxS 0.47 ± 0.02a 0.15 ± 0.01c 0.19 ± 0.02b 0.18 ± 0.02bc
L-PFHpS ND ND ND 0.10 ± 0.01a
PFDS 0.25 ± 0.10a 0.25 ± 0.06a 0.12 ± 0.04a 0.17 ± 0.05a
PFOSA 1.99 ± 0.22a 1.26 ± 0.12c 1.91 ± 0.14ab 1.69 ± 0.07b
MePFOSAA ND ND ND ND
EtPFOSAA ND ND ND ND
Total 32.38 ± 0.66a 16.79 ± 0.66c 18.49 ± 0.46b 18.68 ± 0.42b
  1. ND: Not detected
  2. 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
  3. a–dWith different letters within a row indicate a statistically significant difference (p < 0.05)