Table I. Metabolites putatively identified from the polar phase of methanol extract from potato tubers.

List of metabolites that were putatively identified based upon the similarity of mass spectra and the retention indices published in the literature. Compounds that were detected in more than one derivatized form are listed only once.

Compound Class	Metabolites
Amino acid	Ala, Asn, Gln, Gly, Asp, Glu, Ile, Leu, Met, Phe, Pro, Ser, Thr, Trp, Tyr, Val, Lys, pyro-Glu, β-Ala, GABA
Organic acid	2-Piperidinecarboxylic acid (pipecolic acid), ascorbic acid, butanoic acid, citric acid, quinic acid, fumaric acid, glyceric acid, malic acid, phosphoric acid, succinic acid, dehydro-l-(+)-ascorbic acid dimer, lactic acid, threonic acid
Sugar	Allose, Fru, galactiric acid, galactinol, Man, Suc, glucopyranose
Sugar alcohol	Myoinositol
Amino alcohol	Ethanolamine
Other	Calystegine B2, 5-aminocarboxy-4,6-dihydroxypyrimidine, allantoin