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Table 2 The absolute and relative contents of fatty acids in P. ginseng (G, n = 8), P. notoginseng (NG, n = 9) and P. quinquefolius (AG, n = 12)

From: Fatty acid variability in three medicinal herbs of Panaxspecies

Fatty acids

Absolute content (μg/g)

Relative content (%)

No.

Common name

Symbol

G

NG

AG

G

NG

AG

1

Myristic acid

C14:0

0.16 ± 0.03a

0.20 ± 0.05a

0.28 ± 0.08b

0.41 ± 0.26a

0.54 ± 0.14a

0.70 ± 0.14b

2

Pentadecanoic acid

C15:0

0.47 ± 0.05a

0.15 ± 0.01b

0.34 ± 0.04c

0.89 ± 0.08a

0.42 ± 0.06b

0.86 ± 0.14a

3

Palmitic acid

C16:0

13.93 ± 1.52a

10.49 ± 1.22b

14.69 ± 1.04a

26.31 ± 0.92a

29.39 ± 1.84b

36.92 ± 4.76c

4

Palmitoleic acid

C16:1 (n-9)

0.71 ± 0.17a

0.18 ± 0.07b

1.33 ± 0.27a

0.45 ± 0.17b

5

Heptadecanoic acid

C17:0

0.36 ± 0.04a

0.21 ± 0.03b

0.51 ± 0.07c

0.69 ± 0.09a

0.62 ± 0.12a

1.27 ± 0.19b

6

Stearic acid

C18:0

1.41 ± 1.02

1.05 ± 0.55

1.50 ± 0.20

2.63 ± 1.71ab

2.84 ± 1.09a

3.78 ± 0.80b

7

Oleic acid

C18:1 (n-9)

3.88 ± 0.55a

3.96 ± 1.22ab

2.98 ± 0.61b

7.37 ± 0.97a

11.03 ± 2.81b

7.38 ± 1.23a

8

Linoleic acid

C18:2 (n-6)

28.22 ± 2.3a

17.98 ± 2.41b

17.47 ± 4.34b

53.51 ± 2.93a

50.25 ± 3.94a

42.58 ± 5.28b

9

α-linolenic acid

C18:3 (n-3)

1.71 ± 0.26a

1.25 ± 0.22b

1.53 ± 0.45ab

3.24 ± 0.45

3.49 ± 0.53

3.72 ± 0.73

10

Arachidic acid

C20:0

0.45 ± 0.09a

0.50 ± 0.20a

0.70 ± 0.20b

0.85 ± 0.16a

1.40 ± 0.55b

1.78 ± 0.68b

11

Eicosadienoic acid

C20:2 (n-6)

0.52 ± 0.07 a

0.24 ± 0.05b

0.98 ± 0.14a

0.58 ± 0.10b

Total FA

51.84 ± 4.18a

35.80 ± 4.31b

40.41 ± 5.49b

100.00

100.00

100.00

SFA

16.78 ± 2.18a

12.61 ± 1.84b

18.02 ± 0.95a

31.77 ± 3.22a

35.22 ± 2.80b

45.31 ± 5.63c

MUFA

4.59 ± 0.67a

3.96 ± 1.22ab

3.16 ± 0.64b

8.70 ± 1.24ab

11.02 ± 2.81a

7.82 ± 1.26b

PUFA

30.45 ± 2.33a

19.23 ± 2.57b

19.23 ± 4.79b

57.73 ± 3.51a

53.74 + 4.26a

46.87 + 5.92b

n-6/n-3

17.17 ± 2.7a

14.65 ± 1.88a

11.85 ± 1.48b

17.16 ± 2.70a

14.65 ± 1.88a

11.86 ± 1.48b

  1. Data represents mean ± SD. Averages followed by different letters are significantly different (P < 0.05). FA, fatty acid; SFA, saturated fatty acids; MUFA, monounsaturated fatty acids; PUFA, polyunsaturated fatty acids; n-6/n-3: ratio of omega-6 to omega-3 fatty acids.