Université Côte d'Azur, CNRS, Institut de Chimie de Nice, Parc Valrose, 06108, Nice cedex 2, France.
Alysophil SAS Bio Parc, 850 bd Sébastien Brant BP 30170, 67405, Illkirch, France.
Chem Biodivers. 2023 Jul;20(7):e202300252. doi: 10.1002/cbdv.202300252. Epub 2023 Jun 27.
The chemical composition of the volatile fraction of Ocimum gratissimum concrete (romba) from Madagascar has been determined for the first time by GC/MS and GC-FID. A methyl cinnamate chemotype has been determined for this material, along with a set of compounds typical in essential oils and extracts from plants of the Ocimum genus. Variability was mostly observed on terpenes and terpenoids components. GC-O-MS was also used for a sensory evaluation of this material performed by a master perfumer. The chemical composition of this O. gratissimum extract was then compared with literature data to assess subtle differences between chemotypes of the same species and other species of the same genus within natural variability. A mapping illustrates the occurrence of the cinnamate chemotype in Eastern Africa, India and now Madagascar, while other origins generally present eugenol, thymol, camphor, or linalool chemotypes.
奥图姆 gratissimum 香膏（romba）挥发性成分的化学组成首次通过 GC/MS 和 GC-FID 进行了确定。这种材料确定了一种肉桂酸甲酯化学型，以及一组在植物精油和提取物中典型的化合物。萜烯和萜类化合物的成分变化最大。GC-O-MS 也用于由一位调香师对这种材料进行感官评估。然后，将这种奥图姆 gratissimum 提取物的化学成分与文献数据进行比较，以评估同一物种的化学型之间以及同一属的其他物种在自然变异范围内的细微差异。映射图说明了肉桂酸甲酯化学型在东非、印度和现在的马达加斯加的出现，而其他产地通常存在丁香酚、百里酚、樟脑或芳樟醇化学型。
