Vichi Stefania, Guadayol Josep M, Caixach Josep, López-Tamames Elvira, Buxaderas Susana
Departament de Nutrició i Bromatologia, Universitat de Barcelona, Avda Joan XXIII, s/n 08028 Barcelona, Spain.
J Chromatogr A. 2006 Aug 25;1125(1):117-23. doi: 10.1016/j.chroma.2006.05.029. Epub 2006 Jun 6.
In the present article, a headspace solid-phase microextraction method coupled to GC/MS was developed and applied for the simultaneous determination of mono- and sesquiterpenic hydrocarbons in virgin olive oils of different olive variety and geographical origin. Analysis of various oils resulted in the simultaneous detection of 15 monoterpenes and 30 sesquiterpenes. Some of these hydrocarbons were previously reported to be constituents of virgin olive oil terpenoid fraction, although we also detected some terpenic hydrocarbons that have not previously been documented as present in virgin olive oil. Significant differences were detected in the proportion of terpenic compounds in oils obtained from different olive varieties grown in different geographical areas. The monoterpene, and particularly the sesquiterpene composition of olive oil may be used to distinguish samples from different cultivar and geographical areas.
在本文中，开发了一种顶空固相微萃取法并与气相色谱/质谱联用，用于同时测定不同橄榄品种和地理来源的初榨橄榄油中的单萜和倍半萜烃类。对各种油类的分析结果表明，同时检测到了15种单萜和30种倍半萜。其中一些烃类此前已被报道为初榨橄榄油萜类组分的成分，不过我们也检测到了一些此前未被记录在初榨橄榄油中的萜烃。在不同地理区域种植的不同橄榄品种所产油类中的萜类化合物比例上检测到了显著差异。橄榄油中的单萜，尤其是倍半萜组成可用于区分不同品种和地理区域的样品。
