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Applied Biological Chemistry

Table 2 Isolated iridoids 1 − 6 contents of P. rotundum var. subintegrum

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

Harvest date

Growth weeks

Iridoids content (mg/g, dw)*

1

2

3

4

5

6

15 Jul 2021

5th

96.97 ± 2.44

7.13 ± 0.12

12.27 ± 0.34

8.62 ± 0.53

0.81 ± 0.04

9.79 ± 0.20

29 Jul 2021

7th

67.39 ± 2.59

4.82 ± 0.15

11.61 ± 0.27

4.22 ± 0.21

8.04 ± 0.25

18.47 ± 0.79

Average

 

82.18

5.97

11.94

6.42

4.42

14.13

12 Aug 2021

9th

88.09 ± 3.91

9.53 ± 0.25

14.63 ± 0.85

9.36 ± 0.42

24.96 ± 1.16

13.30 ± 1.19

26 Aug 2021

11th

109.05 ± 4.25

12.45 ± 0.44

8.53 ± 0.36

8.38 ± 0.30

15.05 ± 0.64

14.24 ± 0.82

Average

 

98.57

10.99

11.58

9.11

20.00

13.77

  1. Comp. 1, verproside; Comp. 2, catalposide; Comp. 3, verminoside; Comp. 4, picroside II; Comp. 5, isovanillyl catalpol; Comp. 6, 6-O-veratroyl catalpol. 
  2. Samples harvested once every two weeks were determined by UPLC-PDA at UV 254 nm, and each sample was injected in sextuplicate
  3. *The mean ± standard deviation of sextuplicate experiments
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