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Applied Biological Chemistry

Table 4 Comparison of contents of iridoids 1–6 in cultivated P. rotundum extract in August according to the contents of ATC1 reported in the literature

From: Assessment of iridoid profiles in the growth period of aerial parts of Pseudolysimachion rotundum var. subintegrum and their antioxidant and MUC5AC inhibitory potential

Iridoids

ATC1 extract (area %)a,b

August 40% extract (area %)

August 70% extract (area %)

Verproside 1

17.60

22.77

24.47

Catalposide 2

0.72

4.22

4.55

Verminoside 3

2.62

2.51

2.80

Picroside II 4

1.20

2.92

3.29

Isovanillyl catapol 5

1.26

1.25

1.35

6-O-veratroyl catalpol 6

2.36

2.46

2.53

  1. aCalculated from patent KR 10-2014-0122656
  2. bDried the whole plant of P. rotundum (10 g) were extracted once in 40% ethanol (100 mL) and at room temperature for 48 h, and then second extracted at 80–100 °C reflux for 48 h. The extracts were combined and concentrated in vacuo at 40 °C to produce a dried extract (2.51 g), which was further extracted with n-BuOH (0.5ith n-BuOH (0.55 g), and H2O (1.9 g)
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