Table 2 UPLC-QTOF identification of phenylpropanoids of seedcake extracts

Caffeic acid glucoside

1.70

240, 290 (A max), 317 (sh)

163[M-Glu-H₂O + H]⁺

181[M-Glu + H] ⁺,

343 [M-H₂0 + H] ⁺

p-coumaric acid glucoside

1.81

231, 296 (A max)

147[M-Glu-H₂O + H]⁺

165[M-Glu + H] ⁺,

327 [M-H₂0 + H] ⁺

Ferulic acid glucoside

2.27

237, 291 (A max), 316 (sh)

177[M-Glu-H₂O + H]⁺

195[M-Glu + H] ⁺,

357 [M-H₂0 + H] ⁺

Caffeic acid

3.39

240, 297 (sh), 322 (A max)

163[M-H2O + H] ⁺,

181[M + H] ⁺

p-coumaric acid

5.25

230, 300 (sh), 309(A max)

147[M-H2O + H]⁺,

165[M + H] ⁺

Secoisolariciresinol diglucoside (SDG)

6.26

233, 281 (A max)

327[M-2Glu + H]⁺,

525[M-Glu + H₂0 + H]⁺,

687[M + H]⁺

Ferulic acid

6.43

246, 297 (sh), 323 (A max)

177[M-H2O + H] ⁺,

195[M + H] ⁺