twitter

Tuesday, 1 December 2015

Chapter 74 – Rockroses (Cistus sp.) Oils


Abstract

Cistus plants, also known as rockroses, are a Mediterranean native genus of shrubs included in the Cistaceae family. The Cistus genus contains 25 different species and most of them are very fragrant and sweet-smelling. All Cistus species secrete essential oils in different amounts which are mostly composed of monoterpene, sesquiterpene, and diterpene compounds, but not all of them are fully characterized. Several Cistus species also secrete “labdanum,” a sticky exudate covering leaves and stems mostly in summer, which shares terpenoid composition with the essential oil. Several reports have noted significant antioxidant activity and potential antimicrobial activity of Cistus essential oils against a wide variety of bacterial and fungal infections, which is probably due to presence of terpenes. The use of some of these essential oils has been approved in low concentrations as flavoring agents. Nevertheless, due to potential reported side effects, safety assessment studies must be conducted in order to use these materials for food preservation purposes.

Keywords

  • Antimicrobial;
  • Antioxidant;
  • Cistus;
  • Essential oil;
  • Labdanum

Acknowledgments

Some of the concepts expressed in this review chapter have been supported by competitive public grants from different institutions: AGL2011-29857-C03-03, IDI-20120741, IDI-20120888 (Spanish Ministry of Science and Innovation), PROMETEO/2012/007, and ACOMP/2013/093 from Generalitat Valenciana (GV), and CIBER (CB12/03/30038, Fisiopatología de la Obesidad y la Nutrición, CIBERobn, Instituto de Salud Carlos III).