| 女贞枝叶机械损伤前后挥发性物质的变化 |
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| 引用本文： | 董建华,王成,张晶,任露洁. 女贞枝叶机械损伤前后挥发性物质的变化[J]. 中国城市林业, 2011, 9(3): 40-43 |
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| 作者姓名： | 董建华 王成 张晶 任露洁 |
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| 作者单位： | 中国林业科学院林业研究所国家林业局森林培育重点实验室国家林业局城市林业研究中心,北京,100091 |
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| 基金项目： | 国家十二五科技支撑计划重大项目课题 |
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| 摘 要： | 本实验采用动态顶空吸附法和自动热脱附-气相色谱/质谱联用技术(ATD-GC/MS)对女贞枝叶挥发物进行研究。结果表明:第一,女贞枝叶挥发性物质主要组分为酯、烯烃、醇和醛类化合物,相对含量超过5%的成分有乙酸叶醇酯、乙酸己酯、叶醇、1R-a-蒎烯,对人体有益的挥发性成分的总相对含量达到70%以上,说明女贞具有较高的保健功能,可以作为良好的绿化保健树种加以推广;第二,机械损伤前后女贞枝叶挥发物的主要组分相同,但挥发性物质的组成发生变化,与自然状态下相比,增加的组分包括二氢月桂烯醇、长叶环烯、对-薄荷-1,4(8)-孟二烯、2-甲基-丙酸丁酯、减少的组分包括糠醛、2-甲基-4-戊烯醛、庚醛、水杨醛、1-辛烯、苯乙烯、反-2-己烯醇、甲酸己酯、1-甲基萘、(1,1'-联环戊基)-2-酮;第三,机械损伤后女贞挥发物组成中,对人体有益的挥发性成分的总相对含量达77.36%,呈增加趋势,且对人体作用较大的萜烯类化合物在总挥发物中所占比例增大,总相对含量达24.67%,说明机械损伤后女贞释放出了更多对人体有益的挥发性成分。
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Changes of VOCs Released by Branch and Leaf of Ligustrum lucidum Ait. After Mechanical Damage. |
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| Dong Jianhua,Wang Cheng,Zhang Jing,Ren Lujie. Changes of VOCs Released by Branch and Leaf of Ligustrum lucidum Ait. After Mechanical Damage.[J]. Journal of Chinese Urban Forestry, 2011, 9(3): 40-43 |
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| Authors: | Dong Jianhua Wang Cheng Zhang Jing Ren Lujie |
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| Affiliation: | (Research Institute of Forestry, Chinese Academy of Forestry; Key Laboratory of Tree Breeding and Cultivation, State Forestry Administration; Research Centre of Urban Forestry, State Forestry Administration, Beijing 100091, China) |
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| Abstract: | The plant volatile organic compounds （VOCs） from branch and leaf of Ligustrum lucidum Ait. were collected and analyzed with dynamic headspace-ATD-GC/MS. The results showed that： （1） esters, olefins, alcohols and aldehydes were the main components of L. lucidum Ait., and the relative contents of 3-hexen-1-ol, acetate, （z）-, acetic acid, hexyl ester, 3-hexen-l-ol, （z）- and lr-alpha-pinene were more than 5%. In all of the components, the total content of those good for human＇s heath was over 70%, which showed that L. lucidum Ait. had a high health function and was a good greening tree species; （2） The comparison of undamaged and mechanically-damaged leaves of L. lucidum Ait. indicated that they had similar VOCs, while the composition of volatiles changed. Dihydromyrcenol, p-mentha-1,4（8）-diene, propanoic acid, 2-methyl-, butyl ester, longicyclene could be induced after mechanical damage, but there were also 10 components undetected after mechanical damage; （3） The total content of volatiles good for human heath were increased to 77.36%, with an increasing trend, and the relative content of terpene also increased with the total relative content of 24.67%, which demonstrated that, after mechanical damage, L. lucidum Ait. can release more VOCs beneficial to human health. |
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| Keywords: | Ligustrum lucidum Ait mechanical damage biogenic volatile organic compounds |
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