Table 1 HPLC analysis of the alcoholic extracts of leaves, stems, and flowers of A. houstonianum.

From: Larvicidal and repellent potential of Ageratum houstonianum against Culex pipiens

Peak no.

Retention time (min)

Identified compound

Conc. (mg/g extract)

L

S

F

1

3.9

Gallic

0.08

0.01

0.01

2

7.7

Protocatechuic

0.09

0.09

0.03

3

12.1

p-hydroxybenzoic

0.08

0.00

0.08

4

12

Gentisic

5

15.2

Catechin

6

16.5

Chlorogenic

7.12

1.99

5.20

7

17.2

Caffeic

0.07

0.02

0.13

8

19.3

Syringic

0.01

0.04

9

21.2

Vanillic

0.01

0.04

10

28.9

Ferulic

0.01

0.00

11

30.7

Sinapic

0.02

0.02

12

35

p-coumaric

0.08

0.01

0.05

13

34.5

Rutin

0.93

0.34

0.53

14

38.2

Apigenin-7-glucoside

0.13

0.08

3.85

15

39.2

Rosmarinic

0.78

0.49

7.30

16

46.9

Cinnamic

0.01

0.02

0.01

17

49.5

Qurecetin

0.02

0.03

18

55.2

Apigenin

0.17

0.06

1.80

19

55.9

Kaempferol

0.02

0.02

0.15

20

59

Chrysin

0.04

0.00

0.08

Total identified phenolic acids

8.35

2.64

12.89

Total identified flavonoids

1.32

0.49

6.43

  1. L leaves, S stems, F flowers, – not identified.