Table 3.

Pearson correlations between gamma-aminobutyric acid (GABA), free amino acid (FAA) and biogenic amine (BA) concentration in lentil samples.

Amino acids	Biogenic amines
	PHE		PUT		SPRMD		SPRM
	r	p	r	p	r	p	r	p
Serine	−0.077	0.686	−0.549**	0.002	−0.416*	0.022	−0.353	0.055
Aspartic acid	0.472**	0.009	0.714**	0.0001	0.740**	0.0001	0.516**	0.003
Glutamic acid	0.569**	0.001	0.180	0.342	0.418*	0.021	0.225	0.233
Threonine	0.236	0.210	−0.0720**	0.0001	−0.530**	0.003	−0.608**	0.0001
Glycine	0.497**	0.005	−0.642**	0.0001	−0.487**	0.006	−0.653**	0.0001
Alanine	0.237	0.207	−0.487**	0.006	−0.282	0.131	−0.294	0.115
Proline	0.340	0.066	0.271	0.148	0.527**	0.003	0.517**	0.003
Methionine	0.424*	0.019	−0.752**	0.0001	−0.562**	0.001	−0.664**	0.0001
Valine	0.312	0.093	−0.616**	0.0001	−0.399*	0.029	−0.452*	0.012
Phenylalanine	0.463**	0.010	−0.696**	0.0001	−0.520**	0.003	−0.613**	0.0001
Leu/Ile	0.508**	0.004	−0.722**	0.0001	−0.574**	0.001	−0.685**	0.0001
Lysine	0.328	0.077	−0.794**	0.0001	−0.747**	0.0001	−0.792**	0.0001
Histidine	0.596**	0.001	0.282	0.131	0.528**	0.003	0.378*	0.040
Tyrosine	0.298	0.109	−0.0814**	0.0001	−0.774**	0.0001	−0.869**	0.0001
Glutamine	−0.461*	0.010	0.361	0.050	0.249	0.185	0.266	0.155
Arginine	−0.150	0.429	0.244	0.195	0.189	0.316	0.062	0.744
GABA	−0.132	0.486	−0.761**	0.0001	−0.704**	0.0001	−0.651**	0.0001

PHE, phenylethylamine; PUT, putrescine; SPRMD, spermidine; SPRM, spermine; GABA, gamma-aminobutyric acid; r, Pearson correlation; p, significance, correlation is significant, when p ≤ 0.05. ** Correlation is significant at the 0.01 level (2-tailed). * Correlation is significant at the 0.05 level (2-tailed).