Table 2 Amino acids composition of isopod meal, antarctic krill meal and fish meal (%, dry weight).

From: A comprehensive evaluation of the potential of semiterrestrial isopods, Ligia exotica, as a new animal food

Amino acids (g/100 g)

Isopod meal

Krill meal

Fish meal

Aspartate (Asp)f

4.16 ± 0.07a

4.97 ± 0.10b

6.68 ± 0.05c

Threonine (Thr)e

1.86 ± 0.05a

1.92 ± 0.07b

2.98 ± 0.07c

Serine (Ser)

1.38 ± 0.12a

2.02 ± 0.05b

3.18 ± 0.05c

Glutamate (Glu) f

4.66 ± 0.05a

7.06 ± 0.05b

9.62 ± 0.01c

Glycine (Gly)f

6.96 ± 0.05c

2.04 ± 0.05a

4.43 ± 0.07b

Alanine (Ala)f

2.11 ± 0.07a

2.56 ± 0.12b

4.35 ± 0.07c

Valine (Val)e

3.90 ± 0.10c

2.38 ± 0.07a

3.44 ± 0.05b

Methionine (Met)e

0.54 ± 0.02a

1.46 ± 0.05b

1.72 ± 0.10c

Isoleucine (Ile)e

1.19 ± 0.05a

2.41 ± 0.05b

2.91 ± 0.10c

Leucine (Leu)e

4.26 ± 0.05b

3.90 ± 0.02a

5.50 ± 0.07c

Tyrosine (Tyr)e

1.76 ± 0.02b

1.68 ± 0.01a

2.40 ± 0.02c

Phenylalanine (Phe)e

1.84 ± 0.05a

2.39 ± 0.10b

2.84 ± 0.02c

Lysine (Lys)e

3.36 ± 0.05a

3.72 ± 0.02b

5.39 ± 0.10c

Histidine (His)

0.99 ± 0.10a

2.01 ± 0.02c

1.62 ± 0.05b

Arginine (Arg)

4.24 ± 0.01b

2.94 ± 0.05a

4.50 ± 0.07c

Proline (Pro)

2.37 ± 0.07b

1.68 ± 0.10a

3.15 ± 0.01c

Cysteine (Cys)e

0.09 ± 0.07a

1.34 ± 0.05b

1.37 ± 0.05b

Tryptophan (Trp)e

0.61 ± 0.02a

0.88 ± 0.10b

0.62 ± 0.02a

taurinef

9.45 ± 0.20c

2.93 ± 0.10b

2.04 ± 0.12a

ΣAA

55.61 ± 1.91b

50.11 ± 0.92a

68.55 ± 0.75c

ΣEAA

19.57 ± 1.44a

20.73 ± 1.69b

27.74 ± 1.04c

ΣNEAA

36.73 ± 1.41b

29.41 ± 0.45a

40.63 ± 2.66c

ΣFAA

27.45 ± 1.17b

19.54 ± 2.24a

27.28 ± 0.27b

ΣEAA/ΣAA (%)

35.21 ± 1.14a

41.38 ± 2.51b

40.47 ± 1.24b

ΣEAA/ΣNEAA (%)

53.29 ± 2.78a

70.52 ± 5.14b

68.34 ± 2.01b

ΣFAA/ΣAA (%)

49.37 ± 1.19a

38.98 ± 4.37b

39.80 ± 0.45b

  1. ΣAA is total amino acids, ΣEAA is total essential amino acids, Σ NEAA is total nonessential amino acids, and ΣFAA is total flavor amino acids.
  2. Amino acids marked emeans essential amino acids, while fmeans flavor amino acid.
  3. Numerical values marked with the same letter a,b or care not statistically significantly different.