Jalali-Heravi Mehdi, Zekavat Behrooz, Sereshti Hassan
Department of Chemistry, Sharif University of Technology, P.O. Box, 11365-9516 Tehran, Iran.
J Chromatogr A. 2007 Mar 2;1143(1-2):215-26. doi: 10.1016/j.chroma.2007.01.042. Epub 2007 Jan 18.
Gas chromatography-mass spectrometry combined with iterative and non-iterative resolution methods was used to characterize the essential oil components of Iranian cumin and caraway. Orthogonal projection resolution (OPR) as a non-iterative and distance-selection-multivariate curve resolution-alternative least squares (DS-MCR-ALS) as an iterative method were used as auxiliary means to the analysis in the case of overlapping peaks. A total of 19 and 39 components were identified by direct similarity searches for cumin and caraway oils, respectively. These numbers were extended to 49 and 98 components, respectively with the help of chemometric techniques. Major constituents in cumin are gamma-terpinene (15.82%), 2-methyl-3-phenyl-propanal (32.27%) and myrtenal (11.64%) and in caraway are gamma-terpinene (24.40%), 2-methyl-3-phenyl-propanal (13.20%) and 2, 4(10)-thujadien (14.02%). In spite of different cultivation conditions, there are 28 components which are common between the two seeds.
采用气相色谱 - 质谱联用技术结合迭代和非迭代分辨率方法对伊朗孜然和香菜籽的精油成分进行表征。对于重叠峰的情况，使用正交投影分辨率（OPR）作为非迭代方法，以及距离选择多元曲线分辨率 - 交替最小二乘法（DS - MCR - ALS）作为迭代方法作为分析的辅助手段。通过直接相似性搜索，分别鉴定出孜然油和香菜籽油中的19种和39种成分。借助化学计量学技术，这些数字分别扩展到49种和98种成分。孜然中的主要成分是γ-萜品烯（15.82%）、2 - 甲基 - 3 - 苯基丙醛（32.27%）和桃金娘醛（11.64%），香菜籽中的主要成分是γ-萜品烯（24.40%）, 2 - 甲基 - 3 - 苯基丙醛（13.20%）和2,4(10)-侧柏二烯（14.02%）。尽管种植条件不同，但两种种子之间有28种成分是相同的。
