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. 2018 Jul 21;23(7):1815. doi: 10.3390/molecules23071815

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© 2018 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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Liquid chromatography-electrospray ionization mass spectrometry (LC-ESI-MS) profile of phenolics from 5 WAF of yellow and black rapeseed. (A) black seed; (B) yellow seed. Peaks: (1) qn-3-O-diglucoside-7-O-glucoside; (3) km-3-O-sophoroside-7-O-glucoside; (4) sinapoylhexose; (5) procyanidin B2 ([DP 2]); (6) km-3-O-caffeoylsophoroside-7-O-glucoside; (8) qn-3-O-sinapoylsophoroside-7-O-glucoside; (9) sinapoylhexose**; (10) (-)-epicatechin; (12) km-3-O-sinapoylsophorotrioside-7-O-glucoside; (13) km-3-O-sinapoylsophoroside-7-O-glucoside; (14) km-3-O-feruloylsophoroside-7-O-glucoside; (16) is-3-O-glucoside-7-O-glucoside; (17) sinapoylhexose***; (18) [DP 3]; (19) km-3-O-sophoroside; (20) is-O-diglucoside-sulfate; (22) qn-3-O-sophoroside; (23) km-3-O-diglucoside; (24) cis-sinapic acid; (26) is-3-O-diglucoside; (27) km-3-O-disinapoylgalloyldiglucoside; (28) km-7-O-sophoroside; (29) qn-3-O-sinapoylsophoroside-7-O-glucoside*; (32) km-3-O-sinapoyldiglucoside-7-O-glucoside; (33) is-3-O-sinapoyldiglucoside-7-O-glucoside; (34) trans-sinapic acid; (35) km-3-O-sinapoylsophoroside; (36) [DP 3]*; (38) is-3-O-sinapoylglucoside-sulfate-7-O-glucoside; (39) km-3-O-glucoside; (40) is-3-O-glucoside; (41) km-3-O-sophoroside-7-O-sinapoylglucoside; (43) disinapoylgentiobiose*; (44) is-3-O-sinapoylglucoside-7-O-glucoside; (47) disinapoylgentiobiose**; (50) putative hydroxycinnamic acid derivative; (52) 1,2,2′-trisinapoylgentiobiose; (54) 1,6-disinapoylglucoside; (56) putative quercetin. km, kaempferol; is, isorhamnetin; qn, quercetin; DP, degree of polymerization of the epicatechin unit. * indicates for different isomers.