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. 2017 Feb 18;22(2):313. doi: 10.3390/molecules22020313

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© 2017 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Results of a PCA of the metabolite data. (A) Score plot; (B) Loading plot. PC1, prinicipal component 1; PC2, prinicipal component 2. 1, Lactic acid; 2, Valine; 3, Glycolic acid; 4, Serine; 5, Ethanolamine; 6, Glycerol; 7, Isoleucine; 8, Nicotinic acid; 9, Glycine; 10, Succinic acid; 11, Glyceric acid; 12, Fumaric acid; 13, Threonine; 14, β-Alanine; 15, Malic acid; 16, Salicylic acid; 17, Aspartic acid; 18, Methionine; 19, Pyroglutamic acid; 20, 4-Aminobutyric acid; 21, Threonic acid; 22, Glutamic acid; 23, Phenylalanine; 24, p-Hydroxybenzoic acid; 25, Xylose; 26, Asparagine; 27, Vanillic acid; 28, Glutamine; 29, Shikimic acid; 30, Citric acid; 31, Quinic acid; 32, Fructose; 33, Galactose; 34, Glucose; 35, Syringic acid; 36, Mannose; 37, Mannitol; 38, Inositol; 39, Ferulic acid; 40, Tryptophan; 41, Sucrose; 42, Trehalose; 43, Violaxanthin; 44, Lutein; 45, Zeaxanthin; 46, 13-cis-β-Carotene; 47, α-Carotene; 48, β-Carotene; 49, 9-cis-β-Carotene.