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Table 2 The effect of the L. usitatissimum L. extracts treatment on amino acids concentration in soybean seeds (mean ± SD)

From: Solid–liquid extraction of bioactive compounds as a green alternative for developing novel biostimulant from Linum usitatissimum L.

Amino acids (mg/g)

2017

2018

2019

Average 2017–2019

Control

Infusion

Control

Infusion

Control

Infusion

Control

Infusion

Aspartic acid (Asp)

31.9 ± 1.9a

34.5 ± 2.0a

28.2 ± 1.8a

30.6 ± 2.0a

30.5 ± 1.9a

33.3 ± 2.0a

30.2 ± 2.3b

32.8 ± 2.5a

Threonine (Thr)

12.2 ± 0.7a

13.1 ± 0.7a

10.6 ± 0.6a

11.6 ± 0.8a

11.4 ± 0.7a

12.2 ± 0.8a

11.4 ± 0.9a

12.3 ± 0.9a

Serine (Ser)

15.2 ± 0.8a

16.4 ± 1.0a

13.3 ± 0.8a

14.5 ± 1.0a

14.1 ± 1.0a

15.6 ± 1.0a

14.2 ± 1.1b

15.5 ± 1.2a

Glutamic acid (Glu)

52.4 ± 2.7a

56.7 ± 3.3a

45.6 ± 2.7a

50.3 ± 3.1a

49.0 ± 2.8a

53.8 ± 3.1a

49.0 ± 3.8b

53.6 ± 3.9a

Proline (Pro)

16.6 ± 0.9b

20.7 ± 1.1a

14.4 ± 0.9b

18.4 ± 1.1a

15.8 ± 0.9b

19.1 ± 1.0a

15.6 ± 1.2b

19.4 ± 1.4a

Glycine (Gly)

12.0 ± 0.7a

13.5 ± 0.8a

10.6 ± 0.6a

11.9 ± 0.7a

11.6 ± 0.7a

12.7 ± 0.7a

11.4 ± 0.8b

12.7 ± 0.9a

Alanine (Ala)

12.2 ± 0.7a

13.6 ± 0.7a

10.8 ± 0.7a

12.2 ± 0.8a

11.5 ± 0.6a

12.9 ± 0.8a

11.5 ± 0.8b

12.9 ± 0.9a

Valine (Val)

13.8 ± 0.8a

15.5 ± 0.8a

12.1 ± 0.7a

13.8 ± 0.9a

13.1 ± 0.8a

14.5 ± 0.9a

13.0 ± 1.0b

14.6 ± 1.0a

Isoleucine (Ile)

12.1 ± 0.7a

13.6 ± 0.9a

10.7 ± 0.6a

12.3 ± 0.8a

11.4 ± 0.7a

12.8 ± 0.7a

11.4 ± 0.8b

12.9 ± 0.9a

Leucine (Leu)

20.6 ± 1.2b

23.7 ± 1.3a

17.9 ± 1.1b

21.1 ± 1.4a

20.0 ± 1.3a

21.8 ± 1.3a

19.5 ± 1.6b

22.2 ± 1.6a

Tyrosine (Tyr)

9.1 ± 0.6a

9.9 ± 0.6a

8.0 ± 0.5a

8.9 ± 0.5a

8.7 ± 0.5a

9.4 ± 0.5a

8.6 ± 0.7b

9.4 ± 0.6a

Phenylalanine (Phe)

13.9 ± 0.8a

15.4 ± 0.9a

12.2 ± 0.8a

13.8 ± 0.8a

12.9 ± 0.8a

14.6 ± 0.8a

13.0 ± 1.0b

14.6 ± 1.0a

Histidine (His)

7.9 ± 0.5a

8.67 ± 0.5a

6.9 ± 0.4a

7.67 ± 0.4a

7.4 ± 0.5a

8.17 ± 0.5a

7.4 ± 0.6b

8.17 ± 0.6a

Lysine (Lys)

18.8 ± 1.1b

21.5 ± 1.3a

16.7 ± 1.1a

19.1 ± 1.3a

17.9 ± 1.1a

20.3 ± 1.1a

17.8 ± 1.3b

20.3 ± 1.5a

Arginine (Arg)

19.7 ± 1.2a

21.5 ± 1.3a

17.2 ± 1.1a

19.2 ± 1.2a

19.2 ± 1.1a

20.8 ± 1.3a

18.7 ± 1.5b

20.5 ± 1.5a

  1. Values not sharing a common letter indicate significant difference at p ≤ 0.05