商州产大马士革玫瑰精油研究

Essential Oil of Rosa damascena Planted in Shangzhou Prefecture

采用ISO9842:2003玫瑰油标准,对陕西商州引种的保加利亚主栽玫瑰品种“Kazanluk”(RosadamascenaMiller)精油进行分析。结果表明,该玫瑰精油香气具有天然玫瑰花香,香气细腻、柔和、飘逸。油为液体,淡黄色,相对密度(20/20℃)0.8599,折光指数(20℃)1.4592,旋光度(20℃)-4.3°,冻点20.6℃,酯值11.9,这些物理指标达到了标准要求。大量主香成分相对含量:乙醇0.5%,香茅醇45.5%,橙花醇4.5%,香叶醇7.6%,苯乙醇2.9%,十七烷烃1.13%,十九烷烃15.5%,二十一烷烃5.0%。这些成分含量与原产地保加利亚玫瑰油成分范围有一定差异,但与摩洛哥同类玫瑰油标准相符,可以作为商品油在国际市场销售。

With ISO9842:2003 rose essential oil standard,the essential oil of Kazanluk,which,a dominant rose variety in Bulgaria,was introduced into Shangzhou Prefecture,Shaanxi,China,was assayed.The results indicated that the essential oil was fragrant,exquisite,mild and elegant as natural rose flowers smell.The oil was liquid and yellowish with its relative density (20/20℃),refraction coefficient(20℃),optical rotation,freezing point and ester value at 0.859 9,1.459 2,-4.3°,20.6℃ and 11.9,respectively,and these physical parameters could meet with the criteria of the standard.Its major components were ethanol,citronellol,nerol,geraniophenylethyl alcohol,C_(17) alkane,C_(19) alkane,and C_(21) alkane whose relative contents were 0.5%,45.5%,4.5%,7.6%,1,2.9%,1.13%,15.5%,5.0%.Therefore,the contents of its major components differ from those in Bulgaria to some extent but meets with the standard of comparable rose oils produced in Morocco and thus can be sold on the international market as a product.