蓝花楹挥发物的ATD-GC/MS联用分析及园林芳香性评价

目的]评价蓝花楹活体枝叶的芳香性及其在城市园林绿化中的应用价值。方法]采用全自动热脱附-气相色谱/质谱(ATD-GC/MS)联用技术,对动态顶空密闭循环吸附捕集的蓝花楹健康活体枝叶挥发物进行检测。结果]挥发物中可检出醚、醛、醇、酯、烃5类化合物,使逸散于空气中的总体气息表现为花果样青香,其中具有茉莉花香特点的成分可能来自醛类,该类成分种类较多、香比强值(ASV)较高,总相对含量达21.72%。结论]由于蓝花楹挥发物中的各种成分常用于日用香料香精产品,对人体有益,因此该树种在芳香性方面适宜作为城市园林绿化植物。

Analysis of Volatiles from Jacaranda mimosifolia D.Don by ATD-GC/MS and Evaluation for Its Horticultural Fragrance

Objective] The fragrance of Jacaranda mimosifolia D.Don and its urban horticultural application were evaluated.Method] Volatiles from the health branches in situ were captured by dynamic head-space adsorption within a close and air circular system.The sample was analyzed by auto thermal-desorption gas chromatography/mass spectrometry(ATD-GC/MS).Result] Results showed that ethers,aldehydes,alchohols,esters and hydrocarbons were determined in the volatiles which emitted over the surrounding air.It was smelt with green note of flower and fruit,among which the compound with jasmin scent characteristics probably belonged to aldehydes.Such aldehydes were in a great number of compounds and high ASV(aroma strong value of fragrance or odor),with a total relative content of 21.72%.Conclusion] All of the detected volatile chemicals were widely applied in daily cosmetics and flavors.For its benefit to human with the volatiles,the tree species was considered fine-fragrantly available to urban horticulturing.