Scents from Brazilian Cerrado: chemical composition of the essential oil from Psidium laruotteanum Cambess (Myrtaceae)

Abstract

The chemical composition of the essential oils from the leaves from three different populations of Psidium laruotteanum Cambess. (Myrtaceae) from the Brazilian Cerrado were analysed by GC-FID and GC-MS. Forty-five components were identified in the oils. The oil yields were 0.3% (dry weight basis). The oil was rich in monoterpenes and major compounds identified were p-cymene (19.4-34.8%), 1,8-cineole (6.9-19.2%) and α-pinene (9.2-11.4%). Although collected in different locations and years, the essential oils composition were quite similar, both qualitative and quantitatively.

Monoterpenes and Sesquiterpenes of Essential Oils from Psidium Species and Their Biological Properties

“…It is consumed in nature by wild animals and as jams and juice forms by people. This plant has low fruit productivity [ 30 , 86 , 87 ].…”

“…Regarding the chemical variability of leaves essential oils of Psidium laruotteanum , the records from Midwest Brazil were classified into three chemical profiles, rich in monoterpenes with p -menthane and pinane skeletons. Profile I was rich in p -cymene (24.8%), 1,8-cineole (19.2%), α-pinene (13.4%), and terpinen-4-ol (6.3%) [ 86 ]. Profile II was dominated by p -cymene (19.4%), α-pinene (11.6%), 1,8-cineole (6.9%), terpinen-4-ol (5.8%), and followed also by γ-terpinene (14.0%), limonene (10.2%), and terpinolene (5.1%) [ 86 ].…”

“…Profile I was rich in p -cymene (24.8%), 1,8-cineole (19.2%), α-pinene (13.4%), and terpinen-4-ol (6.3%) [ 86 ]. Profile II was dominated by p -cymene (19.4%), α-pinene (11.6%), 1,8-cineole (6.9%), terpinen-4-ol (5.8%), and followed also by γ-terpinene (14.0%), limonene (10.2%), and terpinolene (5.1%) [ 86 ]. Profile III was characterized by p -cymene (34.8%), 1,8-cineole (12.5%), α-pinene (9.2%), limonene (7.9%), γ-terpinene (6.9%), and α-terpineol (6.0%), as primary constituents [ 86 ].…”

Characterization of volatile and odor‐active compounds of the essential oil from Bidens graveolens Mart. (Asteraceae)

“…Over 300 samples from 134 different plant species were collected, and their essential oils were distilled and chemically and sensorially analyzed. The sensorial analyses were performed by a senior perfumist from Givaudan, an Embrapa partner in this enterprise, and some of the results have been published . One of the assessed species in the project was Bidens graveolens .…”

“…The sensorial analyses were performed by a senior perfumist from Givaudan, an Embrapa partner in this enterprise, and some of the results have been published. 3,14,15 One of the assessed species in the project was Bidens graveolens. The first report concerning this plant appeared in 1983, in which a petroleum ether extract was investigated and sesquiterpenoids, including germacrene D and spathulenol, were the major detected compounds.…”