Chemical Composition and Seasonality of Aromatic Mediterranean Plant Species by NMR-Based Metabolomics

Figure 1

¹H-NMR spectra of studied plants (Au = autumn; Sp = spring; Su = summer; Wi = winter). The main resonances of the main compounds are indicated on the spectra as follows: 1, alanine; 2, apigenin derivative 1; 3, apigenin derivative 2; 4, apigenin derivative 3; 5, apigenin derivative 4; 6, apigenin derivative 5; 7, apigenin derivative 6; 8, citric acid; 9, glucose; 10, malic acid; 11, phenylpropanoid 1; 12, phenylpropanoid 2; 13, phenylpropanoid 3; 14, phenylpropanoid 4; 15, phenylpropanoid 5; 16, phenylpropanoid 6; 17, phenylpropanoid 7; 18, quinic acid; 19, sucrose; 20, chlorogenic acid; 21, GABA; 22, kaempferol; 23, quercetin; 24, threonine; 25, rosmarinic acid.