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Table 1 Free amino acid content of edible tissues exposed to the treatment

From: Biochemical changes and drug residues in ascidian Halocynthia roretzi after formalin–hydrogen peroxide treatment regimen designed against soft tunic syndrome

  Amino acid content (mg/100 g muscle)
Amino acids Control (n = 7) 0.5 × (n = 10) 1 × (n = 10) 2 × (n = 9)
Taurine (Tau) 1860.36 ± 357.57 1526.89 ± 186.85 1816.14 ± 242.77 1601.10 ± 247.87
Aspartic acid (Asp) 98.34 ± 47.38a 75.68 ± 30.71ab 57.42 ± 16.54bc 37.61 ± 28.71c
Threonine (Thr) 72.56 ± 29.51 78.14 ± 24.18 70.97 ± 22.51 87.15 ± 31.46
Serine (Ser) 47.49 ± 13.97 47.24 ± 10.11 57.21 ± 14.36 61.54 ± 20.62
Glutamic acid (Glu) 305.64 ± 54.55 248.89 ± 67.42 309.87 ± 67.07 295.48 ± 70.03
Glycine (Gly) 238.45 ± 57.63 183.81 ± 30.83 207.38 ± 33.59 183.10 ± 48.06
Alanine (Ala) 97.86 ± 22.88a 89.12 ± 13.86a 98.40 ± 18.56a 142.61 ± 45.83b
Citrulline (Cit) 0.29 ± 0.76 0.83 ± 2.61 2.26 ± 3.04 0.90 ± 1.45
Valine (Val) 23.85 ± 7.56a 27.13 ± 10.06ab 22.67 ± 10.05a 36.07 ± 13.19b
Cysteine (Cys) 5.22 ± 3.00a 3.80 ± 3.80ab 5.38 ± 2.88a 1.45 ± 1.66b
Methionine (Met) 15.09 ± 6.93 12.47 ± 5.04 11.71 ± 4.42 12.10 ± 3.42
Isoleucine (Ile) 19.08 ± 6.26 20.28 ± 7.14 17.67 ± 6.44 25.44 ± 8.85
Leucine (Leu) 27.92 ± 7.88 34.92 ± 14.07 26.16 ± 9.72 39.49 ± 11.85
Tyrosine (Tyr) 44.50 ± 21.21 27.68 ± 13.18 35.48 ± 28.24 46.99 ± 20.80
Phenylalanine (Phe) 23.20 ± 5.38 32.51 ± 8.87 25.86 ± 6.54 29.99 ± 7.62
Ornithine (Orn) 2.61 ± 0.80 2.49 ± 0.75 2.58 ± 0.74 2.31 ± 0.70
Lysine (Lys) 34.67 ± 8.98 38.28 ± 12.12 36.35 ± 6.27 33.25 ± 5.63
Histidine (His) 144.42 ± 40.33 120.30 ± 37.19 151.46 ± 49.64 145.57 ± 29.00
Arginine (Arg) 15.26 ± 4.53 19.46 ± 7.67 13.99 ± 4.21 12.66 ± 4.80
Proline (Pro) 688.83 ± 286.60a 453.67 ± 139.60b 607.11 ± 116.11ab 558.56 ± 96.81ab
  1. Values with different superscript letters are significantly different (p < 0.05)