Tulukcu Eray, Cebi Nur, Sagdic Osman
Technical Vocational School of Higher Education, Program of Medical Aromatic Plants, Selcuk University, 42500 Cumra, Konya, Turkey.
Food Engineering Department, Chemical and Metallurgical Engineering Faculty, Yıldız Technical University, 34210 Istanbul, Turkey.
Foods. 2019 Apr 4;8(4):118. doi: 10.3390/foods8040118.
Six species of seeds cultivated and grown in Cumra/Konya (Turkey) were evaluated using headspace gas chromatography mass spectroscopy (GC-MS) and Fourier transform infrared spectroscopy-attenuated total reflectance (FTIR-ATR) combined chemometrics of hierarchical cluster analysis (HCA) and principal component analysis (PCA). The major volatile compounds in the species are determined as -hexanal (present in seven samples), sabinene (present in three samples), α-pinene (present in 13 samples), α-thujone (present in four samples), borneol (present in 11 samples), linalyl acetate (present in 10 samples), β-pinene (present in 13 samples), camphene (present in 13 samples), α-thujene (present in four samples), 2,4(10)-thujadien (present in two samples), β-myrcene (present in seven samples), limonen (present in 12 samples), 1,8-cineole (eucalyptol) (present in 13 samples) and camphor (present in nine samples). The most abundant (%) volatile compounds among all were detected as α-pinene, camphene, β-pinene and eucalyptol. For the first time, chemometrics of HCA and PCA is applied to FTIR and GC-MS data. The classification of all samples is performed on the basis of their chemical similarities and differences.
利用顶空气相色谱 - 质谱联用（GC - MS）和傅里叶变换红外光谱 - 衰减全反射（FTIR - ATR）结合层次聚类分析（HCA）和主成分分析（PCA）的化学计量学方法，对在土耳其库姆拉/科尼亚种植和培育的六种种子进行了评估。确定这些种子中的主要挥发性化合物为己醛（七个样品中存在）、桧烯（三个样品中存在）、α - 蒎烯（13个样品中存在）、α - 侧柏酮（四个样品中存在）、冰片（11个样品中存在）、乙酸芳樟酯（10个样品中存在）、β - 蒎烯（13个样品中存在）、莰烯（13个样品中存在）、α - 苏烯（四个样品中存在）、2,4(10)-侧柏二烯（两个样品中存在）、β - 月桂烯（七个样品中存在）、柠檬烯（12个样品中存在）、1,8 - 桉叶素（桉油精）（13个样品中存在）和樟脑（九个样品中存在）。所有挥发性化合物中含量最高（%）的被检测为α - 蒎烯、莰烯、β - 蒎烯和桉油精。首次将HCA和PCA的化学计量学方法应用于FTIR和GC - MS数据。所有样品根据其化学相似性和差异进行分类。
