几种玫瑰油的化学成分及香气比较

THE COMPARSION OF THE CHkMICAL CONSTITUENTS AND THE ODOUR OF FOUR ROSE OILS

用ＧＣ及ＧＣ／ＭＳ方法，定性定量地分析了法国玫瑰油、摩洛哥玫瑰油、我国甘肃苦水玫瑰油及山东平阴玫瑰油的化学成分，各鉴定了７９，７４，４５和５４个成分。它们的主要化学成分均为香茅醇（玫瑰醇）、香叶醇、苯乙醇、金合欢醇及其酯类、芳樟醇、玫瑰醚、丁香酚、甲基丁香酚。由于它们含量上的多少及其化学成分上的差异，使这几种玫瑰油的香气产生了微妙的出入。法国玫瑰油、摩洛哥玫瑰油，由于各香气物质分配协调、和谐，其香气清甜、纯正，具新鲜的玫瑰花香；而苦水玫瑰油、平阴玫瑰油成分配比上不够满意，以至花香气不足甚至稍显杂气。苦水玫瑰油还含有较多的２－十二烷酮、２－十三烷酮、２－十四烷酮、２－十五烷酮，使之显油脂气。本文较详细地讨论了这４种玫瑰油的化学成分与它们香气之间的关系。

Four rose oils from France, Morocco, Kushui in Gansu Province and Pingyin in Shangdong Province were analyzed qualitatively and quantitatively by means of GC and GC/MS,79,74,45,54 compounds were respectively identified in these four rose oils.The main chemical constituents of all the rose oils are citronellol,geraniol β-phenylethyl alcohol,farnesol and their esters,linalool,linalool oxide,rose oxide, eugenol,methyl eugenol and others.Because of different constitutents and their contents,the odour among the oils are different delicately. French rose oil and Moroccan rose oil possess unadulterate,sweet,fresh floral rose odour with green note because of the suitable proportion of their aromatic constituents, but Kushui rose oil and Pingyin rose oil possess less floral odour with slight other odour because of unsatisfving pro-portion of their constituents,and also Kushui rose oil possesses a little fatty odour because of the higher content of 2-dodecanone and 2-tridecanone.