Ben Lajnef Houda, Ferioli Federico, Pasini Federica, Politowicz Joanna, Khaldi Abdelhamid, Filippo D'Antuono L, Caboni Maria Fiorenza, Nasri Nizar
Université de Tunis El-Manar, Faculté des Sciences de Tunis, Département de Biologie, Tunis, Tunisia.
Department of Agri-Food Science and Technology, Food Science University Campus, Alma Mater Studiorum-University of Bologna, Cesena (FC), Italy.
J Sci Food Agric. 2018 Jan;98(2):635-643. doi: 10.1002/jsfa.8508. Epub 2017 Aug 4.
Eryngium maritimum L., also known as 'sea holly', is a typical dune plant species belonging to the Apiaceae family and commonly used in Tunisia for therapeutic purposes in folk medicine. In the present study, the chemical composition and antioxidant activity of the volatile fraction extracted from air-dried fruits of five Tunisian E. maritimum ecotypes were determined.
The total volatile amount ranged from 0.31% to 0.93% (w d.w. ). Sixty-six volatile components were identified by means of GC-MS and accounted for 77.05-86.65% of the total extracted volatile oil. The majority of the identified metabolites were hydrocarbon sesquiterpenes and oxygenated sesquiterpenes, amounting on average to 46.69% and 30.01% of total volatiles, respectively. The principal individual components were germacrene D (13.62-31.71%), 15-hydroxy-α-muurolene (12.04-18.58%), and germacrene B (6.77-15.04%). Significant differences were noticed among E. maritimum populations. The volatile profile of E. maritimum fruits was consistently different from those of the aerial parts and roots of plants of the same species reported in previous investigations. Average radical scavenging capacity of the volatile fraction, as determined by DPPH and ABTS tests, was twice higher than that of the Trolox control.
This study characterised for the first time the fruits of E. maritimum for the composition and radical-scavenging capacity of their volatile fraction. The growth location confirmed as a pivotal factor in influencing the volatile profile of the fruits. © 2017 Society of Chemical Industry.
滨海刺芹，也被称为“海冬青”，是一种典型的沙丘植物物种，属于伞形科，在突尼斯民间医学中常用于治疗目的。在本研究中，测定了从五种突尼斯滨海刺芹生态型的风干果实中提取的挥发成分的化学成分和抗氧化活性。
总挥发量在0.31%至0.93%（w d.w.）之间。通过气相色谱-质谱联用仪鉴定出66种挥发成分，占提取挥发油总量的77.05 - 86.65%。鉴定出的大多数代谢产物是烃类倍半萜和含氧倍半萜，分别平均占挥发物总量的46.69%和30.01%。主要的单一成分是杜松烯D（13.62 - 31.71%）、15 - 羟基-α-穆罗勒烯（12.04 - 18.58%）和杜松烯B（6.77 - 15.04%）。在滨海刺芹种群之间发现了显著差异。滨海刺芹果实的挥发物谱与先前研究报道的同一物种植物的地上部分和根部的挥发物谱始终不同。通过DPPH和ABTS试验测定，挥发成分的平均自由基清除能力是Trolox对照的两倍。
本研究首次对滨海刺芹果实的挥发成分组成和自由基清除能力进行了表征。生长地点被确认为影响果实挥发物谱的关键因素。© 2017化学工业协会。
