Abstract
The phytochemical research on the species Siparuna echinata, collected in the Province of Loja (Ecuador), led to the isolation of a rare sesquiterpenoid, called Sipaucin A. The structure was confirmed by nuclear magnetic resonance (NMR) and mass spectrometry (MS). Furthermore, the essential oil of the fruits was obtained by hydrodistillation and analyzed by gas chromatography, coupled to mass spectrometry (GC-MS) and flame ionization detector (GC-FID). Twenty-seven compounds were identified in a polydimethylsiloxane column (DB-5ms) and nineteen in a polyethylene glycol column (HP-INNOWax). Major compounds were α-pinene (24.3%, 20.3%), β-pinene (21.7%, 22.7%), β-myrcene (11.3%, 14.8%), limonene (10.0%, 11.3%), cis-ocimene (8.5%, 8.1%), and trans-ocimene (8.9%, 8.4%). In addition to the chemical analysis, the essential oil was submitted to enantioselective analysis of two major chiral monotherpenes, determining an enantiomeric excess of 100.0% for (+)-α-pinene and 6.7% for (+)-β-pinene.
Subject
Plant Science,Ecology,Ecology, Evolution, Behavior and Systematics
Reference37 articles.
1. 17 Most Ecologically Diverse Countries on Earth
http://www.worldatlas.com/articles/ecologically-megadiverse-countries-of-the-world.html
2. Enciclopedia de las Plantas Útiles del Ecuador, Herbario QCA de la Escuela de Ciencias Biológicas de la Pontificia Universidad Católica del Ecuador y Herbario AAU del Departamento de Ciencias Biológicas de la Universidad de Aarhus;De la Torre;Q. Aarhus Q. Ecuad.,2008
3. Large Scale Screening of Ethnomedicinal Plants for Identification of Potential Antibacterial Compounds
4. Bioactive potential of secondary metabolites derived from medicinal plant endophytes
5. Phytochemistry and Ethnopharmacology of the Ecuadorian Flora. A Review
Cited by
10 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献