The essential oil from leaves of Mauria heterophylla Kunth (Anacardiaceae): chemical and enantioselective analyses

The first chemical and enantioselective analyses of the essential oil from the leaves of Mauria heterophylla Kunth were carried out. The dry plant materialproduced an essential oil with a 0.09 +/- 0.05% yield by weight. The volatile fraction was submitted to GC-MS (qualitative) and GC-FID (quantitative) analyses, on two different stationary phases. A total of forty-four constituents were detected and quantified with at least one column, corresponding to about 85.5% of the whole oil mass. Limonene (15.2%), (E)-beta-caryophyllene (11.1%), alpha-phellandrene (10.9%), germacrene D (6.6%), alpha-pinene (6.4%), myrcene (3.9%), beta-phellandrene (2.8%), bicyclogermacrene (2.8%), (E)-beta-farnesene (2.2%) and delta-cadinene (1.2%) were major components. Furthermore, the study was complemented with the enantioselective analysis of eleven common chiral terpenes, carried out on two beta-cyclodextrin-based chiral selectors. Among the chiral metabolites, (1R,4S)-(+)-camphene, (1R,5R)-(+)-beta-pinene, (S)-(+)-alpha-phellandrene and (S)-(+)-beta-phellandrene were enantiomerically pure, whereas alpha-pinene, sabinene, limonene, linalool, terpinen-4-ol, alpha-terpineol and germacrene D were present as scalemic mixtures.

Automated summary

The chemical and enantioselective analyses of the essential oil from the leaves of Mauria heterophylla Kunth were conducted, revealing limonene, (E)-beta-caryophyllene, alpha-phellandrene, etc. as major components. Additionally, chiral analysis of eleven common terpenes showed that some were enantiomerically pure while others were present as scalemic mixtures.