摘要
为探究通过香叶植物混合模拟获得玫瑰精油香气的可能性,采用顶空固相微萃取结合气相色谱-质谱联用法,选取蔷薇科、禾本科、唇形科、山茶科和芸香科等9个科11种香叶植物,对其叶片的挥发性成分进行定性与定量分析。结果显示:11种植物材料中共有主要挥发性物质78种,其中萜烯类39种,脂肪酸衍生物类23种,苯环/苯丙素类化合物16种;利用Matlab软件分析,以玫瑰精油香气为模拟对象,确定香叶植物混合质量比例,迷迭香、鄂茶10号、柠檬桉和香叶天竺葵以质量比31∶7∶11∶1进行混合。结果表明:萜烯类化合物是香叶植物的主要挥发物类型,其次是脂肪酸衍生物类和苯环/苯丙素类化合物;混合模拟叶片组最终模拟获得与玫瑰精油香气相似的混合香气,主要成分为香茅醇、香叶醇、芳樟醇和石竹烯。
全球生物资源丰富,芳香植物种类高达3 000
在芳香植物的根、茎、叶、花和果实等部位中均含有芳香成分,这些成分提炼出的芳香油是香料工业和食品工业的重要原料。潘晓
玫瑰精油被誉为精油界的女王,有“精油皇后”“液体黄金”等美
我国芳香植物种类超过1 000种,然而,目前仅有150种得到了开发利
本研究利用顶空固相微萃取结合气相色谱-质谱联用仪技术(head‐space solid-phase microextraction-gas chromatogra‐phy-mass spectrometry,HS-SPME-GC-MS)对蔷薇科、唇形科、禾本科等9个科中11种香叶植物叶片和花瓣的挥发性物质进行定性定量分析,以玫瑰精油香气为模拟对象,基于Matlab软件分析获得不同香叶植物叶片混合质量配比,以期为香叶植物的开发利用以及从香叶植物中提取获得玫瑰精油香气提供参考。
本研究使用的植物材料:禾本科植物柠檬草(Cymbopogon citratus),山茶科植物鄂茶10号(Camellia sinensis),唇形科植物迷迭香(Rosmarinus officinalis)、丁香罗勒(Ocimum gratissimum)和香蜂花(Melissa officinalis),蔷薇科植物玫瑰‘保白’(Rosa rugosa cv. ‘Bao Bai’)、玫瑰‘紫枝’(Rosa rugosa cv. ‘Zi Zhi’),芸香科植物九里香(Murraya exotica),豆科植物金合欢(Vachellia farnesiana),桃金娘科植物柠檬桉(Eucalyptus citriodora),菖蒲科植物石菖蒲(Acorus calamus),牻牛儿苗科植物香叶天竺葵(Pelargonium graveolens)。玫瑰‘紫枝’使用新鲜花瓣进行HS-SPME-GC-MS分析,其他植物均使用新鲜叶片进行HS-SPME-GC-MS分析。
九里香、金合欢、柠檬桉、香蜂花、丁香罗勒和香叶天竺葵种植于华中农业大学果蔬园艺作物种质创新与利用全国重点实验室生长室,柠檬草、石菖蒲、迷迭香、玫瑰‘保白’和玫瑰‘紫枝’种植于华中农业大学花卉基地,鄂茶10号种植于华中农业大学茶学基地。
1)芳香挥发物萃取。称取0.50 g待测香叶植物叶片或玫瑰花瓣,剪碎后放置于萃取瓶中,移液枪加入1 μL内标试剂(壬酸甲酯∶正己烷=1∶5 000)后立即密封。利用顶空固相微萃取法,将萃取瓶在50 ℃水浴锅中平衡15 min后萃取30 min。取出萃取头保存于-80 ℃冰箱直至上机检测。每种植物材料设置3次生物学重复。混合模拟叶片组将4种香叶植物叶片剪碎混合,后续步骤同上。
2)挥发物成分分析。试验所用Thermo DSQⅡ单四极杆气相色谱-质谱联用仪购置于美国Thermo FisherScientific公司,DB-5MS色谱柱(30 m × 0.25 mm × 0.25 μm)购于Agilent公司,SPME纤维组件购置于美国Sigma-Aldrich 公司。GC检测条件:离子源温度230 ℃,进样口温度230 ℃,传输线温度260 ℃,载气为氦气(纯度99.999%),不分流进样,流速1 mL/min,GC程序升温程序参照文献[
1)定性分析。利用保留指数(retention index, RI,公式里记作I)对物质进行定性分析,计算公式如
(1) |
IX:化合物X的保留指数,TX:化合物X的出峰时间,TZ:碳数为Z的正构烷烃的保留时间,TZ+1:碳数为(Z+1)的正构烷烃的保留时间。
2)定量分析。采用峰面积相对定量法对不同物质进行定量,物质峰面积占总面积百分比即为该挥发性物质相对含量,每个样品3次生物学重复。
3)Matlab(matrix laboratory)分析。基于11种香叶植物HS-SPME-GC-MS分析结果,11种香叶植物中有9种含有目标挥发性物质,组成矩阵A9×9,由于A矩阵不可逆,将其伪逆矩阵定义为矩阵D。以王维恩
由
编号 No. | 保留时间/min Retention time | 分子式 Molecular formula | 挥发物名称 Volatile composition name | 相对含量/% Relative content | 挥发物所属类别 Category of volatile composition |
---|---|---|---|---|---|
1 | 3.55 | C5H10O |
3-戊酮 3-Pentanone | 46.72 |
脂肪酸衍生物 Fatty acid derivatives |
2 | 34.11 | C8H10O |
苯乙醇 Phenethyl alcohol | 33.96 |
苯环/苯丙素类 Benzenoid/phenylpropanoid |
3 | 42.37 | C10H20O |
香茅醇 Citronellol | 4.95 |
萜烯类 Terpenes |
4 | 50.94 | C10H12O2 |
丁香酚 Eugenol | 1.65 |
苯环/苯丙素类 Benzenoid/phenylpropanoid |
5 | 27.84 | C7H8O |
苯甲醇 Benzyl alcohol | 0.53 |
苯环/苯丙素类 Benzenoid/phenylpropanoid |
6 | 50.64 | C13H24O2 |
丙酸香茅酯 Citronellyl propionate | 0.26 |
萜烯类 Terpenes |
7 | 21.70 | C7H6O |
苯甲醛 Benzaldehyde | 0.08 |
苯环/苯丙素类 Benzenoid/phenylpropanoid |
8 | 32.85 | C10H14O |
紫苏烯 Perillene | 0.07 |
萜烯类 Terpenes |
9 | 28.34 | C8H8O |
2-苯基乙醛 Phenylacetaldehyde | 0.05 |
苯环/苯丙素类 Benzenoid/phenylpropanoid |
10 | 33.60 | C10H18O |
(2S-顺)-四氢化-4-甲基-2-(2-甲基-1- 丙烯基)-2H-吡喃 Laevo-rose oxide | 0.04 |
萜烯类 Terpenes |
由

图1 11种香叶植物叶片主要挥发物类型
Fig. 1 The main types of volatile compounds in the leaves of 11 fragrant leaf plants
11种香叶植物中共有78种主要挥发性物质,其中萜烯类化合物39种、脂肪酸衍生物23种、苯环/苯丙素类化合物16种。禾本科植物香茅草和柠檬草、山茶科植物鄂茶10号、蔷薇科植物玫瑰‘保白’叶片和唇形科植物迷迭香和丁香罗勒中共检测到萜烯类化合物26种,禾本科叶片所含挥发物种类最多(11种),其次是山茶科(5种)、蔷薇科(4种),唇形科中仅检测到1种;共检测到脂肪酸衍生物23种,蔷薇科种类最多(13种),其次是山茶科(8种)、禾本科(6种),唇形科种类最少(2种);苯环/苯丙素类化合物共检测到12种,唇形科种类最多(13种),其次是山茶科(5种)、蔷薇科(5种),禾本科种类最少(2种)。
由
植物材料 Plant material | 编号 No. | 保留时间/min Retention time | 分子式 Molecular formula | 挥发物名称 Volatile composition name | 相对含量/% Relative content | 挥发物所属类别 Category of volatile composition |
---|---|---|---|---|---|---|
柠檬草 Cymbopogon citratus | 1 | 14.34 | C10H18O | 香叶醇 Geraniol | 46.86 | 萜烯类 Terpenes |
2 | 14.69 | C10H16O | 柠檬醛 Citral | 20.21 | 萜烯类 Terpenes | |
3 | 8.12 | C10H16 | 蒎烯 Pinene | 13.70 | 萜烯类 Terpenes | |
4 | 18.00 | C12H20O2 |
乙酸香叶酯 Geranyl acetate | 5.77 |
脂肪酸衍生物 Fatty acid derivatives | |
5 | 11.02 | C10H18O | 芳樟醇 Linalool | 2.83 | 萜烯类 Terpenes | |
6 | 17.35 | C10H16O2 | 香叶酸 Geranic acid | 2.14 | 萜烯类 Terpenes | |
7 | 5.42 | C6H12O |
叶醇 cis-3-Hexen-1-ol | 0.64 |
脂肪酸衍生物 Fatty acid derivatives | |
迷迭香 Rosmarinus officinalis | 1 | 8.04 | C10H16 | 蒎烯 Pinene | 18.21 | 萜烯类 Terpenes |
2 | 11.58 | C10H18O | 桉叶油醇 Eucalyptol | 15.64 | 萜烯类 Terpenes | |
3 | 23.05 | C15H24 | 石竹烯 Caryophyllene | 9.17 | 萜烯类 Terpenes | |
4 | 19.42 | C12H20O2 | 乙酸龙脑酯 Bornyl acetate | 8.22 |
脂肪酸衍生物 Fatty acid derivatives | |
5 | 17.19 | C10H14O | 马鞭烯酮 Verbenone | 7.83 | 萜烯类 Terpenes | |
6 | 16.11 | C10H18O | 2-茨醇 Borneol | 4.23 | 萜烯类 Terpenes | |
7 | 18.47 | C10H18O | 香叶醇 Geraniol | 4.09 | 萜烯类 Terpenes | |
8 | 15.32 | C10H16O | 左旋樟脑 Camphor | 3.41 | 萜烯类 Terpenes | |
9 | 13.88 | C10H18O | 芳樟醇 Linalool | 3.34 | 萜烯类 Terpenes | |
九里香 Murraya exotica | 1 | 14.65 | C15H24 | 石竹烯 Caryophyllene | 23.11 | 萜烯类 Terpenes |
2 | 16.64 | C15H24 | 姜油烯 Zingiberene | 16.34 | 萜烯类 Terpenes | |
3 | 16.27 | C15H22 | 诺卡酮 Nootkatone | 12.94 | 萜烯类 Terpenes | |
4 | 2.86 | C9H10O2 | Methyl-7-oxabicyclo[4.2.1]nona-2,4-dien-8-one | 7.38 |
脂肪酸衍生物 Fatty acid derivatives | |
5 | 12.50 | C15H24 | 榄香烯 Elemene | 5.74 | 萜烯类 Terpenes | |
6 | 4.61 | C9H12 |
3-乙基甲苯 3-Ethyltoluene | 3.01 |
苯环/苯丙素类 Benzenoid/phenylpropanoid | |
金合欢 Vachellia farnesiana | 1 | 41.92 | C16H30O4 | 2,2,4-三甲基-1,3-戊二醇二异丁酸酯 2,2,4-Trimethyl-1,3-pentanediol diisobutyrate | 26.58 |
脂肪酸衍生物 Fatty acid derivatives |
2 | 3.74 | C6H10O |
反-2-己烯醛 trans-2-Hexenal | 19.46 |
脂肪酸衍生物 Fatty acid derivatives | |
3 | 66.85 | C10H12 |
环丙基苯甲烷 Cyclopropylphenylmethane | 3.53 |
苯环/苯丙素类 Benzenoid/phenylpropanoid | |
4 | 13.15 | C9H18O |
正壬醛 Nonanal | 3.12 |
脂肪酸衍生物 Fatty acid derivatives | |
5 | 2.88 | C6H12O |
正己醛 Hexanal | 2.36 |
脂肪酸衍生物 Fatty acid derivatives | |
6 | 36.94 | C15H24O |
2,6-二叔丁基-4-甲基苯酚 2,6-Di-tert-butyl-4-methylphenol | 1.90 |
苯环/苯丙素类 Benzenoid/phenylpropanoid | |
鄂茶10号 Camellia sinensis | 1 | 20.16 | C10H18O | 芳樟醇 Linalool | 7.57 | 萜烯类 Terpenes |
2 | 25.81 | C8H8O3 |
水杨酸甲酯 Methyl salicylate | 5.07 |
苯环/苯丙素类 Benzenoid/phenylpropanoid | |
3 | 5.91 | C6H10O |
2-已烯醛 trans-2-Hexenal | 3.82 |
脂肪酸衍生物 Fatty acid derivatives | |
4 | 30.21 | C10H18 | 香叶醇 Geraniol | 2.99 | 萜烯类 Terpenes | |
5 | 17.74 | C10H18O2 |
顺-Alpha,Alpha-5-三甲基-5-乙烯基四氢化呋喃-2-甲醇 (Z)-linalool oxide (furanoid) | 2.48 | 萜烯类 Terpenes | |
6 | 51.12 | C16H30O4 | 2,2,4-三甲基-1,3-戊二醇二异丁酸酯 2,2,4-Trimethyl-1,3-pentanediol diisobutyrate | 2.23 |
脂肪酸衍生物 Fatty acid derivatives | |
7 | 13.66 | C8H14O2 |
乙酸叶醇酯 cis-3-Hexenyl acetate | 0.84 |
脂肪酸衍生物 Fatty acid derivatives | |
8 | 4.22 | C6H12O |
正己醛 Hexanal | 0.76 |
脂肪酸衍生物 Fatty acid derivatives | |
9 | 49.60 | C15H26O | 橙花叔醇 Nerolidol | 0.46 | 萜烯类 Terpenes | |
10 | 20.47 | C8H10O |
苯乙醇 Phenethyl alcohol | 0.44 |
苯环/苯丙素类 Benzenoid/phenylpropanoid | |
柠檬桉 Eucalyptus citriodora | 1 | 11.46 | C10H18O | 香茅醛 Citronellal | 59.18 | 萜烯类 Terpenes |
2 | 13.98 | C10H20O | 香茅醇 Citronellol | 17.55 | 萜烯类 Terpenes | |
3 | 14.26 | C10H16O | 柠檬醛 Citral | 3.29 | 萜烯类 Terpenes | |
4 | 19.23 | C15H24 | 异丁香烯 Isocaryophyllene | 3.28 | 萜烯类 Terpenes | |
5 | 4.87 | C10H16 | 蒎烯 Pinene | 2.02 | 萜烯类 Terpenes | |
6 | 20.04 | C15H24/C12H20O2 |
石竹烯/乙酸芳樟酯 Caryophyllene/linalyl acetate | 1.70 |
萜烯类/脂肪酸衍生物 Terpenes/fatty acid derivatives | |
7 | 17.70 | C10H12O2 | 丁香酚 Eugenol | 1.64 |
苯环/苯丙素类 Benzenoid/phenylpropanoid | |
8 | 21.05 | C15H24 | 双环大牻牛儿烯 Bicyclogermacrene | 1.27 | 萜烯类 Terpenes | |
9 | 14.67 | C10H18O | 香叶醇 Geraniol | 1.16 | 萜烯类 Terpenes | |
石菖蒲 Acorus calamus | 1 | 9.78 | C11H14O2 |
甲基异丁香油酚 Isoeugenyl methyl ether | 22.69 |
苯环/苯丙素类 Benzenoid/phenylpropanoid |
2 | 12.31 | C12H16O3 |
细辛脑 Asarone | 21.67 |
苯环/苯丙素类 Benzenoid/phenylpropanoid | |
3 | 13.23 | C15H24O | 石竹素 Caryophyllene oxide | 9.43 | 萜烯类 Terpenes | |
4 | 9.20 | C15H24 | 石竹烯 Caryophyllene | 7.96 | 萜烯类 Terpenes | |
5 | 8.56 | C9H12O3/C15H24 |
甲基丁香酚/榄香烯 Methyleugenol/elemene | 5.29 |
苯环/苯丙素类/萜烯类 Benzenoid/phenylpropanoid/terpenes | |
6 | 4.52 | C10H18O | 桉叶油醇 Eucalyptol | 4.98 | 萜烯类 Terpenes | |
香蜂花 Melissa officinalis | 1 | 12.47 | C10H14O |
3-甲基-2-(3-甲基-2-丁烯基)呋喃 3-Methyl-2-(3-methylbut-2-enyl)furan | 31.54 |
脂肪酸衍生物 Fatty acid derivatives |
2 | 24.17 | C15H24 | 石竹烯 Caryophyllene | 9.33 | 萜烯类 Terpenes | |
3 | 8.50 | C8H16O |
蘑菇醇 Oct-1-en-3-ol | 9.01 |
脂肪酸衍生物 Fatty acid derivatives | |
4 | 9.15 | C12H20O2 |
乙酸叶醇酯 cis-3-Hexenyl acetate | 6.60 |
脂肪酸衍生物 Fatty acid derivatives | |
5 | 15.62 | C10H12O |
4-异丙基苯甲醛 4-Isopropylbenzaldehyde | 5.40 |
苯环/苯丙素类 Benzenoid/phenylpropanoid | |
6 | 21.91 | C15H24 | 榄香烯 Elemene | 2.28 | 萜烯类 Terpenes | |
7 | 4.84 | C6H12O |
叶醇 cis-3-Hexen-1-ol | 1.44 |
脂肪酸衍生物 Fatty acid derivatives | |
香叶天竺葵 Pelargonium graveolens | 1 | 21.33 | C10H20O | 香茅醇 Citronellol | 20.57 | 萜烯类 Terpenes |
2 | 23.62 | C11H20O2 | 甲酸香茅酯 Citronellyl formate | 8.01 | 萜烯类 Terpenes | |
3 | 17.61 | C10H18O |
5-甲基-2-(1-甲乙基)环已硐 Menthone | 5.10 | 萜烯类 Terpenes | |
4 | 15.34 | C10H18O | 反式玫瑰醚 trans-Rose oxide | 3.47 | 萜烯类 Terpenes | |
5 | 33.70 | C15H24 | 杜松烯 Cadinene | 3.02 | 萜烯类 Terpenes | |
6 | 23.16 | C10H18O | 香叶醇 Geraniol | 2.93 | 萜烯类 Terpenes | |
7 | 34.08 | C14H26O2 |
异丁酸香茅酯 Geranyl isobutyrate | 2.52 |
脂肪酸衍生物 Fatty acid derivatives | |
8 | 29.55 | C15H24 | 石竹烯 Caryophyllene | 2.22 | 萜烯类 Terpenes | |
丁香罗勒 Ocimum gratissimum | 1 | 5.77 | C10H12O2 | 丁香酚 Eugenol | 19.70 |
苯环/苯丙素类 Benzenoid/phenylpropanoid |
2 | 2.78 | C10H18O | 水化香桧烯 Sabinene hydrate | 15.25 | 萜烯类 Terpenes | |
3 | 3.15 | C10H18O | 芳樟醇 Linalool | 13.74 | 萜烯类 Terpenes | |
4 | 7.61 | C15H24 | 杜松烯 Cadinene | 11.58 | 萜烯类 Terpenes | |
5 | 8.38 | C16H30O4 | 2,2,4-三甲基-1,3-戊二醇二异丁酸酯 2,2,4-Trimethyl-1,3-pentanediol diisobutyrate | 4.83 |
脂肪酸衍生物 Fatty acid derivatives | |
6 | 7.17 | C15H24 | 雪松烯 Cedrene | 4.00 | 萜烯类 Terpenes | |
玫瑰‘保白’ Rosa rugosa 'Bao Bai' | 1 | 7.67 | C6H12O | 叶醇 cis-3-Hexen-1-ol | 20.17 |
脂肪酸衍生物 Fatty acid derivatives |
2 | 16.77 | C12H20O2 |
乙酸叶醇酯 cis-3-Hexenyl acetate | 14.57 |
脂肪酸衍生物 Fatty acid derivatives | |
3 | 54.55 | C16H30O4 | 2,2,4-三甲基-1,3-戊二醇二异丁酸酯 2,2,4-Trimethyl-1,3-pentanediol diisobutyrate | 6.59 |
脂肪酸衍生物 Fatty acid derivatives | |
4 | 8.20 | C6H12O |
3-2-已烯-1-醇 cis-2-Hexen-1-ol | 6.14 |
脂肪酸衍生物 Fatty acid derivatives | |
5 | 68.13 | C16H32O2 |
棕榈酸 Palmitic acid-13C | 4.28 |
脂肪酸衍生物 Fatty acid derivatives | |
6 | 29.30 | C8H8O3 |
水杨酸甲酯 Methyl salicylate | 2.93 |
苯环/苯丙素类 Benzenoid/phenylpropanoid |
基于植物学分类,对上述香叶植物主要挥发物进行总结分析,结果显示:禾本科植物柠檬草和香蜂花中均含有挥发物乙酸香叶酯和叶醇,相对含量分别为5.77%、6.60%和0.64%、1.44%;唇形科植物迷迭香和丁香罗勒中均含有挥发物芳樟醇,相对含量分别为3.34%、13.74%。蔷薇科植物玫瑰‘保白’叶片与禾本科植物香蜂花、柠檬草的主要挥发物中都有叶醇,前者叶醇的相对含量为20.17%,远高于禾本科植物香蜂花和柠檬草。
基于11种香叶植物HS-SPME-GC-MS定性定量分析结果与Matlab数学分析软件求解得9种香叶植物配比矩阵C1×9=[-0.20、4.36、0.93、1.42、-2.46、0.01、0.17、-1.49、-2.88],取迷迭香(4.36)、鄂茶10号(0.93)、柠檬桉(1.42)和香叶天竺葵(0.17)4种香叶植物为混合材料,明确迷迭香、鄂茶10号、柠檬桉、香叶天竺葵的质量比依次为31∶7∶11∶1。以质量比31∶7∶11∶1将迷迭香、鄂茶10号、柠檬桉和香叶天竺葵4种香叶植物叶片进行混合,如

图2 混合模拟结果挥发性物质检测峰图
Fig. 2 Peak plots of volatile substance detection for various mixed leaves
A―C:分别代表3个生物学重复 Three biological replicates respectively.
由
编号 No. | 保留时间/min Retention time | 分子式 Molecular formula | 挥发物名称 Volatile composition name | 相对含量/% Relative content | 挥发物所属类别 Category of volatile composition |
---|---|---|---|---|---|
1 | 28.41 | C10H18O | 香茅醛 Citronellal | 18.63 | 萜烯类 Terpenes |
2 | 19.14 | C10H18O | 桉叶油醇 Eucalyptol | 15.71 | 萜烯类 Terpenes |
3 | 12.24 | C10H16 | α-蒎烯 α-Pinene | 15.06 | 萜烯类 Terpenes |
4 | 45.61 | C15H24 | 反式石竹烯 β-Caryophyllene | 8.04 | 萜烯类 Terpenes |
5 | 37.00 | C12H20O2 | 乙酸龙脑酯 Bornyl acetate | 7.56 | 脂肪酸衍生物 Fatty acid derivatives |
6 | 34.16 | C10H20O | 马鞭烯酮 Verbenone | 6.49 | 萜烯类 Terpenes |
7 | 31.90 | C10H14O | 香茅醇 Citronellol | 4.81 | 萜烯类 Terpenes |
8 | 13.36 | C10H16 | 莰烯 Camphene | 2.91 | 萜烯类 Terpenes |
9 | 15.23 | C10H16 | β-蒎烯 β-Pinene | 2.63 | 萜烯类 Terpenes |
10 | 25.00 | C10H18O | 芳樟醇 Linalool | 1.83 | 萜烯类 Terpenes |
11 | 16.45 | C10H16 | 月桂烯 Myrcene | 1.70 | 萜烯类 Terpenes |
12 | 29.96 | C10H18O | 茨醇 Borneol | 1.63 | 萜烯类 Terpenes |
13 | 27.39 | C10H16O | 左旋樟脑 Camphor | 1.58 | 萜烯类 Terpenes |
14 | 47.87 | C15H24 | α-石竹烯 α-Caryophyllene | 1.23 | 萜烯类 Terpenes |
15 | 35.72 | C10H18O | 香叶醇 Geraniol | 1.05 | 萜烯类 Terpenes |
由
玫瑰‘紫枝’和混合模拟叶片组均含有关键挥发物香茅醇,相对含量分别为4.95%和4.81%。但玫瑰‘紫枝’主要挥发物中的3-戊酮、苯乙醇、丁香酚和苯甲醇等在混合叶片组中并未找到,说明玫瑰精油与玫瑰花瓣挥发物之间存在一定的差异。
以大马士革玫瑰精油特征香气成

图3 混合模拟叶片组与大马士革玫瑰精油香气主要挥发物雷达图
Fig. 3 Radar image of the main volatile compoundsin the aroma of mixed group simulated leaves and Damascus rose essential oil
本研究从挥发物角度出发,研究利用香叶植物叶片模拟还原大马士革玫瑰精油香气的可能性。首先,由玫瑰精油主要挥发物初步确定柠檬草等11种香叶植物叶片作为混合材料;11种香叶植物HS-SPME-GC-MS检测结果表明,柠檬草、迷迭香、鄂茶10号、柠檬桉、石菖蒲、香蜂花、香叶天竺葵、丁香罗勒和玫瑰‘保白’这9种香叶植物叶片中含有目标挥发物,可作为混合植物候选材料;利用Matlab等数据分析软件,明确迷迭香、鄂茶10号、柠檬桉和香叶天竺葵叶片质量混合配比,模拟获得香茅醇、香叶醇、芳樟醇和石竹烯等玫瑰精油特征香气挥发物。
区别于现有香气模拟研究中较多地利用化学物质混合模拟,本研究以香叶植物叶片作为香气物质来源创新性地模拟玫瑰精油香气。与王维恩
关于香叶植物混合模拟玫瑰精油香气的相关研究未来需从以下几个方面进行改进与提升:(1)充分考虑挥发性物质间的相互转化与化学反应;(2)完善香叶植物混合物的评估系统;(3)加强香叶植物混合物提取技术研发,优化提取工艺。
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