Tomi Kenichi, Kitao Makiko, Konishi Norihiro, Murakami Hiroshi, Matsumura Yasuki, Hayashi Takahiro
a Faculty of Agriculture , Kinki University , Nara , Japan.
b Akazawa Hitomi Enzyme Research Institute Co., Ltd. , Osaka , Japan.
Biosci Biotechnol Biochem. 2016 May;80(5):840-7. doi: 10.1080/09168451.2016.1146066. Epub 2016 Feb 29.
Essential oils and hydrosols were extracted from rosemary harvested in different seasons, and the chemical compositions of volatile components in the two fractions were analyzed by gas chromatography-mass spectrometry (GC-MS). Enantiomers of some volatile components were also analyzed by enantioselective GC-MS. Classification of aroma components based on chemical groups revealed that essential oils contained high levels of monoterpene hydrocarbons but hydrosols did not. Furthermore, the enantiomeric ratios within some volatile components were different from each other; for example, only the (S)-form was observed for limonene and the (R)-form was dominant for verbenone. These indicate the importance of determining the enantiomer composition of volatile components for investigating the physiological and psychological effects on humans. Overall, enantiomeric ratios were determined by volatile components, with no difference between essential oils and hydrosols or between seasons.
从不同季节收获的迷迭香中提取了香精油和纯露，并通过气相色谱-质谱联用仪（GC-MS）分析了这两种馏分中挥发性成分的化学组成。还通过对映选择性GC-MS分析了一些挥发性成分的对映体。基于化学基团的香气成分分类显示，香精油中含有高水平的单萜烃类，而纯露中则没有。此外，一些挥发性成分中的对映体比例彼此不同；例如，柠檬烯仅观察到（S）-型，而马鞭草烯酮则以（R）-型为主。这些表明，确定挥发性成分的对映体组成对于研究其对人类的生理和心理影响具有重要意义。总体而言，挥发性成分决定了对映体比例，香精油和纯露之间或季节之间没有差异。
