d'Acampora Zellner Barbara, Lo Presti Maria, Barata Lauro Euclides Soares, Dugo Paola, Dugo Giovanni, Mondello Luigi
Dipartimento Farmaco-chimico, Facoltà di Farmacia, Università di Messina, Italy.
Anal Chem. 2006 Feb 1;78(3):883-90. doi: 10.1021/ac051337s.
In consideration of the world's present environmental situation and the threat of species extinction, investigations concerning alternative sustainable sources of natural substances represent an extremely important issue. In this respect, the present research is focused on the analytical evaluation of Brazilian rosewood (Aniba rosaeodora Ducke) leaves, as an alternative source (with respect to wood) of rosewood essential oil and, as such, of natural linalool, which is extensively used in perfumery. Enantioselective-gas chromatography-olfactometry (Es-GC-O) was used as a tool for the simultaneous stereodifferentiation and olfactive evaluation of the volatile optically active components present in the analyzed samples. In addition to Es-GC-O analyses, direct olfactive analyses were also performed, enabling the evaluation of the global aroma exerted by each sample and the influence of each linalool antipode, as also other minor compounds. The samples were also submitted to gas chromatography-mass spectrometric analysis, thus establishing their chemical profiles. The assessment of enantiopure chiral compounds through Es-GC-O, along with direct olfactive analyses, confirmed that the leaves are a potential substituent for wood in the extraction of Brazilian rosewood essential oil, representing a sustainable nonwood source of natural linalool.
鉴于当前世界的环境状况以及物种灭绝的威胁，对天然物质替代可持续来源的研究是一个极其重要的问题。在这方面，本研究聚焦于对巴西玫瑰木（Aniba rosaeodora Ducke）叶片进行分析评估，它可作为玫瑰木精油（以及天然芳樟醇，后者在香料业中广泛使用）的一种替代来源（相对于木材而言）。对映体选择性气相色谱 - 嗅觉测定法（Es - GC - O）被用作一种工具，用于对分析样品中存在的挥发性光学活性成分进行同时的立体区分和嗅觉评估。除了Es - GC - O分析外，还进行了直接嗅觉分析，从而能够评估每个样品所散发的整体香气以及每种芳樟醇对映体（以及其他次要化合物）的影响。这些样品还进行了气相色谱 - 质谱分析，从而确定了它们的化学概况。通过Es - GC - O对对映体纯的手性化合物进行评估，再结合直接嗅觉分析，证实了叶片在提取巴西玫瑰木精油方面是木材的潜在替代品，是天然芳樟醇的可持续非木材来源。
