摘要
采用水蒸气蒸馏法和气相色谱质谱联用技术,分析黑杨不同季节的叶片,即嫩叶、成熟叶和衰老叶萎蔫后释放的气味物质成分.结果表明,嫩叶挥发物主要成分为顺3己烯醇、4甲基1戊醇和邻羟基苯甲醛,其相对含量分别为44.81%、21.85%和15.19%;成熟叶挥发物主要组分也是顺3己烯醇,相对含量28.71%,其次为邻羟基苯甲醛,相对含量10.35%.邻羟基苯甲醛为衰老叶挥发物的主要组分为,其相对含量为28.81%,其次是苯甲醇,相对含量15.06%;随着叶龄增长,挥发物中顺3己烯醇含量显著减少,而具有芳香性化合物种类及其含量显著增加.
By the methods of steam distillation and GC-MS, this paper analyzed the chemical components of the volatiles from withered black poplar leaves. The main components of the volatiles from young leaves were(Z)-3-hexenol ( 44.81% ), 4-methyl- 1-pentanol ( 21.85 % ) and 2- hydroxy-benzaldehyde ( 15.19 % ), those from matured leaves were(Z )-3- hexenol ( 28.71% ) and 2-hydroxy-benzaldehyde ( 10.35 % ), while in the volatiles from senescent leaves, the main components were 2-hydroxy-benzaldehyde(28.81% )and benzyl alcohol( 15.06% ). The(Z)-3- hexenol content in the volatiles was evidently decreased with increasing leaf age, while the species and contents of aromatic compounds were in adverse.
出处
《应用生态学报》
CAS
CSCD
北大核心
2005年第10期1822-1825,共4页
Chinese Journal of Applied Ecology
基金
国家教育部重点项目(00198)
河南省重大科技攻关资助项目(991020107).