Chemical shifts used for identification and quantification of amino acids, other amino compounds and other compounds in 1H-NMR spectra of beet root and leaf polar extracts (in D2O, pHapparent 6.0), expressed as relative values to the TSP resonance at 0 ppm.

s: singlet, d: doublet, dd: doublet of doublets, t: triplet, m: multiplet.