Skip to main content

Table 2 Percentage of different fractions of Eryngium triquetrum essential oil from three distinct geographical localities in Algeria

From: Molluscicidal and parasiticidal activities of Eryngium triquetrum essential oil on Schistosoma mansoni and its intermediate snail host Biomphalaria glabrata, a double impact

No Componentsa RI ba Eryngium triquetrum  
ET01c ET02c ET03c Identification
1 Heptane 703 0.2 0.1 0.1 RI, MS
2 Hexanal 774 0.2 0.2 0.2 RI, MS
3 Heptanal 877 tr tr tr RI, MS
4 Octanal 979 1.8 1.0 1.0 RI, MS
5 (E)-2-octenal 1039 tr tr tr RI, MS
6 1-octanol 1063 0.3 0.1 0.1 RI, MS
7 Nonan-2-one 1077 tr 0.1 0.1 RI, MS
8 Nonanal 1081 0.4 0.2 0.3 RI, MS
9 (E)-2-nonenal 1133 0.4 0.3 0.2 RI, MS
10 (Z)-2-nonen-1-ol 1155 0.1 0.4 0.4 RI, MS
11 Octanoic acid 1174 0.1 tr tr RI, MS
12 1-decen-3-ol 1181 0.6 tr tr RI, MS
13 Decanal 1183 tr 0.2 0.2 RI, MS
14 3-dodecen-1-yne 1214 0.1 tr tr RI, MS
15 Carvone 1225 tr tr tr RI, MS
16 (E)-2-decanal 1251 tr 0.2 0.2 RI, MS
17 (E,E)-2,4-decadienal 1289 0.3 0.3 0.3 RI, MS
18 β-ionone 1454 0.2 0.2 0.2 RI, MS
19 3,4-dimethyl-5-pentyl-5H-furan-2-one 1486 1.9 1.0 1.0 RI, MS, Ref
20 γ-undecalactone 1524 tr tr 0.2 RI, MS, Ref
21 Dodecanoic acid 1547 0.1 tr tr RI, MS
22 Hexadecanoic acid 1968 1.4 0.8 0.8 RI, MS
23 falcarinol 2026 86.9 93.1 90.6 RI, MS
24 α-kaurene 2049 0.1 0.3 0.2 RI, MS
Total identification (%) 95.1 98.3 96.2  
EO yields (%) (w/w) 0.05 0.04 0.03  
Oxygenated compounds 92.8 95.4 92.7  
Hydrogenated compounds 2.3 2.9 3.5  
  1. aOrder of elution is given on apolar column (SPB-1)
  2. bRetention indices on SPB-1 column (RIa)
  3. cEssential oils of E. triquetrum stems. Quantification was carried out using RFs relative to tridecane as internal standard
  4. Abbreviations: %, normalized percentages are given on the apolar column; tr, trace (< 0.05%); RI: retention index; MS: mass spectrometry in electronic impact mode. All compounds were identified by comparing their EI-MS and retention indices with references compiled in the in-house library except for compounds 19 and 20; EO: essential oil. Yield is based on the fresh weight of the stems; Ref, Compounds identified with references from literature data and compiled in the in-house library