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Table 1 Extraction yields, total phenolic and flavonoid content of S. ibericum leaf and root extracts

From: Symphytum ibericum Steven: LC–HRMS/MS-based phytochemical profile, in vitro antioxidant and enzyme inhibitory potential

Sample

Yield [%]

TPC [mg GAE/g]

TFC [mg RE/g]

LC

3.6

23.60 ± 0.29i

4.03 ± 0.14e

LA

1.2

32.64 ± 0.06e

3.23 ± 0.18f

LE100

2.2

48.45 ± 0.18d

3.14 ± 0.20f

LE75

10.4

75.24 ± 0.50c

4.73 ± 0.06d

LE50

7.0

84.95 ± 0.60a

3.54 ± 0.09f

LE25

6.2

79.26 ± 0.13b

6.19 ± 0.27c

LW

11.4

23.28 ± 0.18i

1.48 ± 0.12g

RC

1.6

13.21 ± 0.39l

5.14 ± 0.10d

RA

0.6

24.45 ± 0.16h

20.88 ± 0.29a

RE100

1.8

26.75 ± 0.10g

13.27 ± 0.16b

RE75

9.6

28.70 ± 0.12f

0.81 ± 0.06h

RE50

11.8

17.72 ± 0.15j

0.91 ± 0.06h

RE25

10.2

10.53 ± 0.20m

1.12 ± 0.07gh

RW

10.8

15.38 ± 0.13k

1.09 ± 0.14gh

  1. Data are presented as mean ± standard deviation (SD) of three determinations; different superscript letters within columns indicate significant differences between the tested extracts (P < 0.05)
  2. GAE gallic acid equivalents, LA acetone leaf extract, LC chloroform leaf extract, LE100 ethanol leaf extract, LE25 25% ethanol leaf extract, LE50 50% ethanol leaf extract, LE75 75% ethanol leaf extract, LW water leaf extract, RA acetone root extract, RC chloroform root extract, RE100 ethanol root extract, RuE rutin equivalents, RE25 25% ethanol root extract, RE50 50% ethanol root extract, RE75 75% ethanol root extract, RW water leaf extract, TFC total flavonoid content, TPC total phenolic content