Chemical composition and antioxidant activity of the essential oil of Tabernaemontana catharinensis A. DC. leaves

• Published in: Natural product research Vol. 27; no. 1; pp. 68 - 71
• Main Authors: Boligon, Aline Augusti, Schwanz, Thiago Guilherme, Piana, Mariana, Bandeira, Rose Vanessa, Frohlich, Janaína Kieling, Brum, Thiele Faccim de, Zadra, Marina, Athayde, Margareth Linde
• Format: Journal Article
• Language: English
• Published: England Taylor & Francis Group 01.01.2013
• Subjects: antioxidant activity; Antioxidants - chemistry; Cyclohexanols - chemistry; Cyclohexenes - chemistry; essential oil; Monoterpenes - chemistry; Oils, Volatile - chemistry; Plant Leaves - chemistry; Sesquiterpenes - chemistry; Sesquiterpenes, Eudesmane - chemistry; Sitosterols - chemistry; Tabernaemontana - chemistry; Tabernaemontana catharinensis; Terpenes - chemistry
• ISSN: 1478-6419; 1478-6427
• DOI: 10.1080/14786419.2011.653971

The essential oils obtained by hydrodistillation from the leaves of Tabernaemontana catharinensis had their composition analysed by GC-MS. A total of 18 substances were identified, consisting of a complex mixture of sesquiterpenes (83.52%), monoterpenes (5.46%) and triterpenes (4.56%). The main components in the oil were β-caryophyllene (56.87%), α-cadinol (12.52%), 8S,13-cedran-diol (5.41%), α-terpineol (3.99%), β-eudesmol (2.54%), caryophyllene oxide (2.51%) and ethyl iso-allocholate (2.03%) along with β-cubebene, γ-cadinene, cubenol, 1,8-cineol, o-cymene, curcumenol, spathulenol, friedeline and β-sitosterol as minor constituents. An antioxidant property was tested with the oil obtained by means of 1,1-diphenyl-2-picrylhydrazyl assay; the oil presented interesting radical scavenging activity. To the best of our knowledge, this is the first study of the composition and antioxidant activity of essential oil from the T. catharinensis collected from Brazil.