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. 2020 Jun 13;6(6):e04194. doi: 10.1016/j.heliyon.2020.e04194

Table 1.

The content of selenium compounds and betalains in juice from beetroot (Beta vulgaris L.).

Compound Seco S1 S2 S3 S4 S5
Selenium compounds
SeMet 0.56 ± 0.02a 0.21 ± 0.01d 0.33 ± 0.02b 0.20 ± 0.01d 0.26 ± 0. 01c 0.20 ± 0.007d
MeSeCys 0.08 ± 0.003c 0.21 ± 0.01b 0.22 ± 0.008b 0.20 ± 0.01b 0.28 ± 0.01a 0.21 ± 0.011b
SeCys
<LOD∗∗
<LOD
<LOD
0.11 ± 0.005b
0.27 ± 0.02a
<LOD
Betalains
Betanin 797 ± 24a 535 ± 22b 569 ± 21b 406 ± 17c 420 ± 14c 541 ± 22b
Vulgaxantin I 424 ± 16a 417 ± 17a 410 ± 18a 311 ± 13b 321 ± 11b 410 ± 17a

Data are expressed in mg L−1 (of juice) are expressed as the means ± SD of three independent experiments. Different letters in each row indicate a difference at a significance level of p = 0.05.

∗∗

LOD- limit of detection- the lowest concentration of the analyte that can be detected by applied method, calculated as 3 time signal to noise ratio.