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Table 1 Chemical constituents of the essential oil of Allium macrostemon

From: Evaluation of larvicidal activity of the essential oil of Allium macrostemon Bunge and its selected major constituent compounds against Aedes albopictus (Diptera: Culicidae)

Peak no.

Compound

RIa

RIb

Content (%)

1

Diallyl sulfide*

848

848

0.34

2

Allyl isothiocyanate

890

890

0.51

3

Methyl allyl disulfide*

915

912

1.58

4

α-Pinene*

937

939

0.14

5

Methyl propyl disulfide*

950

946

47.23

6

Dimethyl trisulfide*

975

972

37.18

7

β-Pinene*

980

979

0.08

8

1,3-Dithiane

1027

1027

2.57

9

Limonene*

1029

1024

0.07

10

Diallyl disulfide*

1077

1076

1.52

11

Methyl allyl trisulfide*

1134

1133

0.68

12

Methyl propyl trisulfide*

1168

1168

1.27

13

Dimethyl tetrasulfide

1214

1212

0.59

14

Diallyl trisulfide*

1296

1289

0.52

15

Diallyl thiosulfinate

1325

1324

3.29

16

Allyl methyl tetrasulfide

1386

1384

0.82

 

Total identified

  

98.39

 

Monoterpenoids

  

0.29

 

S-Containing compounds

  

98.10

  1. *Identification by co-injection of authentic compounds; aRI, retention index as determined on a HP-5MS column using a homologous series of n-hydrocarbons; bRI, retention index reported in the literature [30, 33].