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Table 2 Retention time (Rt), wavelengths of maximum absorption in the visible region (λmax), mass spectral data and tentative identification of flavonols, flavanols, flavones, and flavanones in four selected drought-tolerant vegetable amaranth

From: Nutraceuticals, phytochemicals, and radical quenching ability of selected drought-tolerant advance lines of vegetable amaranth

Peak no Rt
(min)
λmax (nm) Molecular ion
[M - H]
(m/z)
MS2
(m/z)
Identity of tentative compounds
1 4.62 370 626.2142 626.2587 Myricetin-3-O-rutinoside
2 7.57 370 301.0487 301.0368 2-(3,4-dihydroxy phenyl)-3,5,7-trihydroxychromene-4-one
3 15.52 370 270.3524 270.3246 4′,5,7-Trihydroxyflavone, 5,7-Dihydroxy-2-(4-hydroxyphenyl)-4-benzopyrone
4 17.88 370 593.5264 593.3372 kaempferol-3-O-rutinoside
5 23.95 280 290.2341 290.2374 (2R-3S)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-2-chromene-3,5,7-triol
6 26.76 280 271.0785 271.1742 Naringenin
7 54.38 360 463.3187 463.3421 Quercetin-3-O-glucoside
8 53.32 360 463.4584 463.5246 Quercetin-3-O-galactoside
9 53.35 360 609.3592 609.3623 Quercetin-3-O-rutinoside