‘鲁赫’与野生刺蔷薇花精油成分比较

Analysis and Comparison of Essential Oil Composition between Rosa acicularis ‘Luhe’ and Lindl

本研究提取‘鲁赫’刺蔷薇花和野生刺蔷薇花精油并测定其精油得率,比较其挥发性成分和脂肪酸组成。结果表明:‘鲁赫’刺蔷薇花精油得率明显高于野生刺蔷薇花(p<0.05);采用气相色谱-质谱联用技术对两种刺蔷薇花挥发性成分进行分离鉴定,经分析可以明确‘鲁赫’刺蔷薇花中含有已知成分70种,野生品种中的68种成分。主要挥发性成分为二十烷、二十五烷、三十烷和邻苯二甲酸二丁酯四种,经分析得挥发性成分组成及含量无明显差异(p>0.05);气相色谱法测定脂肪酸组成及含量,‘鲁赫’与野生刺蔷薇花均检测出29种脂肪酸成分,其中癸酸、棕榈油酸、反式油酸、二十碳酸含量较为丰富。‘鲁赫’刺蔷薇花作为改良品种与传统野生刺蔷薇花相比保留了野生刺蔷薇花原有特性。

In this study,the essential oils of the Rosa acicularis‘Luhe’and Lindl were measured and their oil yield,the volatile components and fatty acid composition were compared.The results showed that the oil yield of‘Luhe’was significantly higher than that of Lindl(p<0.05).With gas chromatography-mass spectrometry(GC-MS),we have separated and identified the volatile components of two kinds of Rosa acicularis.After analysis,it was clear that the‘Luhe’contains 70 kinds of known ingredients and Lindl contains 68 components.The main volatile components were eicosane,pentadecane,triacontane and dibutyl phthalate.There was no significant difference in volatile components content among Rosa acicularis species(p>0.05).The composition and content of fatty acids were determined by gas chromatography(GC),and 29 fatty acids were detected in both‘Luhe’and Lindl.Among them,decanoic acid,palm oleic acid,trans oleic acid,and twenty carbonic acid were abundant.Compared to traditional Rosa acicularis Lindl,the Rosa acicularis‘Luhe’,as an improved variety,retains the original characteristics of wild species(Rosa acicularis Lindl).