Analysis of Volatile Components of Elsholtzia densa Grown in Qinghai Province

doi:10.7506/spkx1002-6630-201402045

Abstract

Abstract:

Purpose: To analyze volatile components in various parts of Elsholtzia densa at various growth stages and various
altitude areas. Methods: The volatile oil of Elsholtzia densa was extracted by steam distillation method. The identification
was performed by gas chromatography-mass spectrometry (GC-MS) and the quantification was conducted by GC using
peak area normalization method. Results: The flowers and leaves of Elsholtzia densa were the major parts where volatile
components were emitted. The early flowering and full bloom stages were the major periods for the emission of volatile
components. In addition, there was an increasing trend of volatile components contents with the increasing altitude where
Elsholtzia densa was grown. It was found that the major volatile components in Elsholtzia densa were identified to be
alkenes (34.57%), alcohols (17.17%), phenols (14.68%), acids (9.91%), alkanes (9.52%), aldehydes, esters, aromatic
hydrocarbons and ethers (5.44% in combination). Their contents varied with growth phases, parts and altitudes. Conclusion:
This study has provided a scientific basis for scientific collection, effective development and use of Elsholtzia densa as well
as the formulation of quality standards.

Key words: Elsholtzia densa, volatile components, gas chromatography-mass spectrometry

CLC Number:

TS207.3

BAO Jin-yuan1, LI Jun-qiao1,*, XIAO Yuan-can2. Analysis of Volatile Components of Elsholtzia densa Grown in Qinghai Province[J]. FOOD SCIENCE, 2014, 35(2): 231-237.

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