Essential oil composition and yield of a Rosmarinus officinalis L. natural population with an extended flowering season
- PDF / 1,406,464 Bytes
- 17 Pages / 547.087 x 737.008 pts Page_size
- 41 Downloads / 203 Views
(0123456789().,-volV) ( 01234567 89().,-volV)
RESEARCH ARTICLE
Essential oil composition and yield of a Rosmarinus officinalis L. natural population with an extended flowering season in a coastal Mediterranean environment and perspectives for exploitations Francesca Serralutzu . AntonPietro Stangoni . Bah Amadou . Dibba Tijan . Giovanni Antonio Re . Salvatore Marceddu . Antonio Dore . Simonetta Bullitta
Received: 30 September 2019 / Accepted: 6 April 2020 Ó Springer Nature B.V. 2020
Abstract There are numerous and different uses of rosemary (Rosmarinus officinalis L.) essential oil (e.o.) and experimental results indicating which of the e.o. components is responsible for a specific biological activity. Consequently, it is worth to consider not only the seasonal variation of the the e.o. content but also the proportion of e.o. components that might vary according to season as well. Our aim was to determine the monthly variation in the e.o. composition, plant growth and e.o. yield of an almost continuously flowering rosemary natural population in a coastal Mediterranean environment, in order to understand the best utilization of e.o. according to the oil components detected by means of GC/MS along the different seasons. Alpha pinene ranging from 75.4 to 18.2% and eucalyptol from 15.6 to 3.5%, were the most represented components in all periods of samplings. Camphor and borneol increased in the samplings done after summer. Flowering occurred almost
F. Serralutzu A. Stangoni G. A. Re S. Bullitta (&) ISPAAM-CNR, Traversa La Crucca 3, Loc. Baldinca, 07100 Sassari, Italy e-mail: [email protected] B. Amadou D. Tijan CAS Baja Sunajola, Corso Italia 64, Loc. Lu Bagnu, 07031 Castelsardo, Italy S. Marceddu A. Dore ISPA-CNR, Traversa La Crucca 3, Loc. Baldinca, 07100 Sassari, Italy
continuously except in the period from mid May to mid August. Production of e.o. was slightly affected by sampling period. The high concentration in alpha pinene, up to a level not recorded before according to the available literature, could be exploited for new pharmaceutical uses. The observation of leaves, stems and flowers by means of scanning electron microscopy, showed in all the examined plant parts the presence of glandular trichomes particularly numerous on leaves in the basal part of the adaxial lamina indicating the importance of leaves for e.o. production. Keywords Alpha pinene Distillation residuals Glandular trichomes Scanning electron microscope Total phenolics Rosemary
Introduction Rosemary (Rosmarinus officinalis L.) has been widely used in cooking especially to modify and enhance flavors, but also in traditional medicine, being a highly appreciated medicinal plant to prevent and cure colds, rheumatisms, pain of muscles and joints (Andrade et al. 2018; Zhang et al. 2014; Calvo et al. 2011). In their review about phytochemistry and biological activity of R. officinalis, Andrade et al. (2018) point out that in the last 20 years rosemary has been mostly studied for its anticancer, antioxidant and
Data Loading...
