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. Author manuscript; available in PMC: 2013 Sep 4.
Published in final edited form as: J Agric Food Chem. 2007 Jan 27;55(4):1084–1096. doi: 10.1021/jf062431s

Table 2.

Phenolic Compounds in Elder Flower

peak tR
(min)
[M + H]+/
[M - H]−
(m/z)
[A + H]+/[A - H]))−
and other NI
ions (m/z)
UV/vis Abs
λmax (nm)
identification
hydroxycinnamoylquinic acids, hydroxycinnamoyl-hexoside
E1 7.62 −/353 −/191, 179, 173, 135 240, 298sh, 326 3-caffeyolquinic acida
E2 11.10 −/353 −/191, 179, 173, 135 240, 298sh, 326 chlorogenic acida
E3 12.43 −/353 −/191, 179, 173, 135 240, 298sh, 326 4-caffeoylqunic acida
E4 14.72 −/341 −/179 240, 298sh, 326 caffeoyl-hexose
E5 16.58 −/337 −/191, 173, 163 230, 312 p-coumaroylquinic acid
E13B 30.50 −/515 −/353, 191, 179, 173, 135 b 3,4-dicaffeoylquinic acida
E14B 33.26 −/515 −/353, 191, 179, 173, 135 240, 298sh, 326 3,5-dicaffeoylquinic acida
E15 36.74 −/515 −/353, 191, 179, 173, 135 240, 298sh, 326 4,5-dicaffeoylquinic acida
glycosylated flavonols (group II)
E6 19.82 757/755 465, 303/301 256, 266 sh, 352 quercetin-3-O-triglycoside
E7 23.68 641/639 479, 317/315 254, 266 sh, 354 isorhamnetin-3-O-dihexoside
E8 25.50 611/609 465, 303/301 256, 266 sh, 352 rutina
E9 27.40 465/463 303/301 256, 266 sh, 352 quercetin 3-O-glucosidea
E10 30.36 595/593 449, 287/285 266, 348 kaempferol 3-O-rutinosidea
E11 31.12 625/623 479, 317/315 254, 266 sh, 354 isorhamnetin 3-O-rutinosidea
E12 30.31 551/549 303/301 b quercetin 3-O-6″-malonylglucoside
E13A 30.41 449/447 287/284 b kaempferol 3-O-glucosidea
E14A 33.17 479/477 317/315 b isorhamnetin 3-O-glucosidea
flavonol aglicones detected in the acidic hydrolyzed extract
E16 47.32 303/301 256, 372 quercetina
E17 53.21 287/285 264, 370 kaempferola
E18 53.83 317/315 256, 372 isorhamnetina
a

Identification with standard.

b

Not determined.

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