摘要：本课题的主要研究内容为通过对茉莉精油中的特征香气成分进行定量定性分析，并对特征香气物质对茉莉精油整体香气的贡献进行评价，调整出香气和谐逼真的茉莉精油。运用GC-MS-O,结合强度法分析确定了四种茉莉精油样品的特征香气成分29种，并运用GC-MS进行定性定量分析，最后根据得到的定量数据重组茉莉精油，并且通过感官分析与电子鼻分析实验来加以验证。本次实验选用的茉莉精油样品均是来自于溶剂萃取以及蒸馏所得到，茉莉花作为原料提取的茉莉精油,香气纯正优雅,是我国特有的名贵香料品种之一,研究和分析茉莉花特征香气成分及茉莉精油的化学成分,对进一步开发和利用茉莉资源,具有十分重要的意义。69523

毕业论文关键词： GC-MS-O；茉莉精油；定量

Study on the characteristic aroma components of jasmine essential oil

Abstract: The main content of this paper is to analyze qualitatively by the characteristic aroma components in essential oil of jasmine, and to evaluate the contribution of the aroma of jasmine aroma fragrance to adjust the overall, harmonious and vivid jasmine. The use of GC-MS-O, combined with the strength analysis the characteristic aroma components of four kinds of jasmine essential oil of 29 samples by the use of GC-MS, and by the qualitative and quantitative analysis, finally, according to the quantitative data reorganization of jasmine, and by sensory analysis and electronic nose analysis experiments to verify it. The experimental samples are from jasmine essential oil obtained from solvent extraction and distillation, extraction of raw materials as jasmine jasmine, pure fragrance and elegant, is one of the rare spice species endemic to China, research and analysis of chemical constituents of jasmine aroma constituents and jasmine essence characteristics of oil, for the further development and utilization of jasmine resources, it has very important significance.

Key Word:  GC-MS-O；jasmine essential oil；quantitative

目　录

1  前言 1

1.1  茉莉精油国内外现状概述 1

1.2  茉莉花的应用 1

1.3  国内外对茉莉精油的研究 1

1.3.1 茉莉精油特征香气成分的基本构成 2

1.3.2 大花茉莉精油特征香气成分的基本构成 2

1.3.3 小花茉莉精油特征香气成分的基本构成 2

1.4  本课题研究的目的与意义 2

2  实验原理与内容 3

2.1  实验原理 3

2.2  实验原料、仪器 4

2.2.1  实验的主要原料 4

2.2.2  重组配制香精需要的原料 5

2.2.3  实验仪器设备 5

2.3 实验方法与步骤 6

2.3.1  分析实验方法与要求 6

2.3.2  GC-MS-O分析实验 6

2.3.3  GC-MS外标定量实验 7

2.3.4  茉莉精油的重组 8

2.3.5  实验步骤 8

3  实验结果与讨论 9

3.1  广西小花茉莉分析结果 9