Research Article

Chemical Composition of Essential Oils from Six Zanthoxylum Species and Their Repellent Activities against Two Stored-Product Insects

Table 2

Chemical composition of essential oils from the six Zanthoxylum species.

Compound Relative content (%)Identification
Z. armatumZ. dimorphophyllumZ. dimorphophyllum var. spinifoliumZ. piasezkiiZ. stenophyllumZ. dissitum

Camphene2.45943941RI, MS
-Thujene3.56969965RI, MS
-Pinene4.80977983RI, MS, Co
3-Carene8.880.628.3010041006RI, MS
Eucalyptol74.8710171037RI, MS
4-Carene2.4810181014RI, MS
-Phellandrene3.9610261029RI, MS
-Terpinene45.564.2110441045RI, MS
-Terpinene3.230.3410601065RI, MS
neo-allo-Ocimene3.0211471144RI, MS
Terpinen-4-ol4.470.6111621176RI, MS
-Terpineol4.5711811191RI, MS, Co
Estragole5.1911951191RI, MS
Piperitone33.470.850.1212271221RI, MS
-Pyronene4.2321.9712501252RI, MS
2-Undecanone1.9212651274RI, MS
Bornyl acetate10.0512721277RI, MS
Safrole38.0812851281RI, MS
-Cubebene6.7512.0513501359RI, MS
-Copaene0.4313721375RI, MS
Isoledene1.8113761371RI, MS
Geranyl acetate1.6613791386RI, MS
Methyl eugenol6.2123.4913841387RI, MS
-Elemene4.890.180.4111.441.0213881398RI, MS
-Caryophyllene0.5126.174.007.167.7714141418RI, MS
-Caryophyllene3.780.281.152.484.6514541453RI, MS
-Muurolene0.751.061.1414651462RI, MS
-Gurjunene3.400.6814741475RI, MS
Germacrene D0.845.7320.9814771479RI, MS
2-Tridecanone0.6114811485RI, MS
Valencene0.7914841481RI, MS
-Farnesene14.2815051508RI, MS
Myristicin6.7528.7415131510RI, MS
-Cadinene8.581.217.2717.1515201524RI, MS
Spathulenol10.190.361.854.4215631561RI, MS
Nerolidol2.8515661564RI, MS
Caryophyllene oxide13.364.3215831585RI, MS
Viridiflorol6.5015921595RI, MS
-Cadinol0.5316401643RI, MS
Monoterpenoids93.620.8542.4390.8826.1321.97
Sesquiterpenoids4.4785.165.304.1954.8974.59
Others12.9652.2314.24
Total98.0998.9799.9695.0795.2696.56

, retention index of the chromatography determined on a HP-5MS column using the homologous series of -hydrocarbons as reference; , retention index reported in the literatures or libraries. method: RI, comparison of retention indices with published data; MS, comparison of mass spectra with those listed in the NIST 05 and Wiley 275 libraries and with published data; Co, coinjection with standard compound.