. Author manuscript; available in PMC: 2014 Nov 20.

Published in final edited form as: J Agric Food Chem. 2013 Nov 5;61(46):10960–10970. doi: 10.1021/jf401802n

Table 1.

Typical substitutional groups and common neutral losses of polyphenols in five Brassica species microgreens.

Substitutional groups	Name	Neutral Loss in HRMS
mono-saccharides	pentose (xylose, arabinose)	132.0422 (C₅H₈O₄)
	methyl-pentose (rhamnose) hexose (glucose, galactose)	146.0579 (C₆H₁₀O₄) 162.0528 (C₆H₁₀O₅)
di-saccharides	sophorose=2-β-D-glucopyranosyl-D-glucose gentiobiose=6-β-D-glucopyranosyl-D-glucose	324.1056 (C₁₂H₂₀O₁₀)
tri-saccharides	sophorotriose (2‴- β-D-glucopyranosyl-2″-β-D-glucopyranosyl-D-glucose) gentiotriose (6‴- β-D-glucopyranosyl-6″-β-D-glucopyranosyl-D-glucose)	486.1584 (C₁₈H₃₀O₁₅)
hydroxycinnamoyls	p-coumaroyl R₁=H R₂=H caffeoyl R₁=OH R₂=H	146.0347 (C₉H₆O₂) 162.0317 (C₉H₆O₃)
	feruloyl R₁=OCH₃ R₂=H sinapoyl R₁=OCH₃ R₂=OCH₃	176.0473 (C₁₀H₈O₃) 206.0579 (C₁₁H₁₀O₄)
hydroxybenzoyls	p-hydroxybenzoyl R₁=H R₂=H	120.0211 (C₇H₄O₂)
	galloyl R₁= OH R₂=OH	152.0109 (C₇H₄O₄)
di-carboxylic acid acyls	malonyl	86.0004 (C₃H₂O₃)