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Table 3 Content of compounds 1, 2, and 7 in the 30%, 50%, 70%, and 95% ethanol extracts from freeze-dried and air-dried leaves and stems of PHT

From: Low-density lipoprotein-antioxidant flavonoids and a phenolic ester from Plectranthus hadiensis var. tomentosus

Extracts

Contents of compounds (mg/g extract)

1

2

7

Leaf

 30FDL

3.95 ± 0.02cd

2.79 ± 0.01d

1.38 ± 0.00h

 50FDL

7.25 ± 0.02b

39.50 ± 0.00c

3.55 ± 0.00f

 70FDL

8.36 ± 0.01a

43.22 ± 0.00b

3.76 ± 0.00e

 95FDL

1.61 ± 0.02f

67.87 ± 0.00a

7.54 ± 0.00b

 30ADL

2.12 ± 0.00e

0.80 ± 0.00h

1.79 ± 0.00g

 50ADL

3.75 ± 0.27d

1.59 ± 0.00f

5.91 ± 0.02d

 70ADL

4.18 ± 0.00c

1.74 ± 0.00e

6.42 ± 0.03c

 95ADL

0.58 ± 0.11g

0.94 ± 0.01g

10.85 ± 0.08a

Stem

 30FDS

4.00 ± 0.26e

1.05 ± 1.13e

0.99 ± 0.07g

 50FDS

10.53 ± 0.92b

13.11 ± 0.96c

3.65 ± 0.33e

 70FDS

12.67 ± 0.57a

48.99 ± 1.88b

3.92 ± 0.19e

 95FDS

5.40 ± 0.10d

116.05 ± 1.61a

10.85 ± 0.09b

 30ADS

5.52 ± 0.03d

1.78 ± 0.01de

2.01 ± 0.00f

 50ADS

7.37 ± 0.02c

3.22 ± 0.01d

5.88 ± 0.03d

 70ADS

7.11 ± 0.00c

3.51 ± 0.01d

7.95 ± 0.03c

 95ADS

1.29 ± 0.01f

2.32 ± 0.03de

23.86 ± 0.24a

  1. Values indicate mean ± SD (n = 3)
  2. FDL freeze-dried leaves, FDS freeze-dried stems, ADL air-dried leaves, ADS air-dried stems
  3. ahMeans not sharing a common letter within a column indicate that extracts from the same parts of PHT are significantly different (p < 0.05) by one-way ANOVA