Chemical Composition of the Leaf Essential Oil ofPsidium guajavafrom Monteverde, Costa Rica

The leaf essential oil of Stauranthus perforatus Leibm. (Rutaceae) from Monteverde, Costa Rica, was isolated by hydrodistillation and the chemical composition determined by GC–MS. The most abundant essential oil components were α-pinene, germacrene D, and α-cadinol.

Download Full-text

Leaf Essential Oil of Manekia naranjoana (Piperaceae) from Costa Rica and its Cytotoxic Activity

Natural Product Communications ◽

10.1177/1934578x1100600135 ◽

2011 ◽

Vol 6 (1) ◽

pp. 1934578X1100600 ◽

Cited By ~ 2

Author(s):

Carlos Chaverri ◽

Cecilia Díaz ◽

José F. Cicció

Keyword(s):

Costa Rica ◽

Chemical Composition ◽

Essential Oil ◽

Tumor Cell ◽

Cytotoxic Activity ◽

Tumor Cell Lines ◽

Capillary Gc ◽

Leaf Oil ◽

Leaf Essential Oil ◽

Low Toxicity

The chemical composition of the leaf oil of Manekia naranjoana (C. DC.) Callejas (Piperaceae) from Costa Rica was analyzed by capillary GC/FID and GC/MS. Fifty-five compounds were identified. Major compounds from the leaf oil were β-pinene (30.6%), α-pinene (18.8%), limonene (13.7%), and β-caryophyllene (6.1%). The oil presented very low toxicity to tumor and non-tumor cell lines, even though it contains components, such as α- and β-pinene, limonene and others, which have been shown to be cytotoxic. This is the first report of the chemical composition of the essential oil obtained from this species.

Download Full-text

Chemical Composition and Cytotoxic Activity of the Leaf Essential Oil of Ocotea tonduzii from Monteverde, Costa Rica

Natural Product Communications ◽

10.1177/1934578x0700200716 ◽

2007 ◽

Vol 2 (7) ◽

pp. 1934578X0700200 ◽

Cited By ~ 9

Author(s):

Anita Bansal ◽

Debra M. Moriarity ◽

Sayaka Takaku ◽

William N. Setzer

Keyword(s):

Costa Rica ◽

Chemical Composition ◽

Essential Oil ◽

Cytotoxic Activities ◽

Germacrene D ◽

Leaf Oil ◽

Leaf Essential Oil ◽

Oil Components ◽

Mcf 7

The leaf essential oil of Ocotea tonduzii from Monteverde, Costa Rica has been obtained by hydrodistillation and analyzed by GC-MS. The principal constituents of O. tonduzii leaf oil were the monoterpenes α-pinene (41.4%) and pinene (25.1%) and the sesquiterpenes α-humulene (6.9%), β-caryophyllene (5.8%), and germacrene D (3.8%). O. tonduzii leaf oil was notably cytotoxic on MCF-7, MDA-MB-231, MDA-MB-468, and UACC-257 cells in vitro. The major essential oil components showed cytotoxic activities comparable to doxorubicin ( LC50, 20–70 μg/mL).

Download Full-text

Chemical Composition of the Leaf Essential Oil of Casimiroa Edulis La Llave & Lex. (Rutaceae) from Monteverde, Costa Rica

Natural Product Communications ◽

10.1177/1934578x0900400322 ◽

2009 ◽

Vol 4 (3) ◽

pp. 1934578X0900400 ◽

Cited By ~ 2

Author(s):

Sarah L. Miller ◽

William A. Haber ◽

William N. Setzer

Keyword(s):

Costa Rica ◽

Chemical Composition ◽

Essential Oil ◽

Traditional Use ◽

Sesquiterpene Hydrocarbons ◽

Germacrene D ◽

Casimiroa Edulis ◽

Leaf Oil ◽

Leaf Essential Oil

The leaf essential oil of Casimiroa edulis (Rutaceae), collected from Monteverde, Costa Rica, has been obtained by hydrodistillation and analyzed by GC-MS. The leaf oil was dominated by sesquiterpene hydrocarbons, predominately germacrene D (16-22%) and ( E)-caryophyllene (16-17%), consistent with the traditional use of this plant as a sedative, sleep inducer and hypotensive.

Download Full-text

Essential oil Composition of Dendropanax Gonatopodus from Monteverde, Costa Rica. An ab Initio Examination of Aromadendrane Sesquiterpenoids

Natural Product Communications ◽

10.1177/1934578x0800300932 ◽

2008 ◽

Vol 3 (9) ◽

pp. 1934578X0800300 ◽

Cited By ~ 3

Author(s):

William N. Setzer

Keyword(s):

Costa Rica ◽

Chemical Composition ◽

Essential Oil ◽

Ab Initio ◽

Density Functional ◽

Essential Oil Composition ◽

Oil Composition ◽

Hartree Fock ◽

Leaf Oil ◽

Leaf Essential Oil

The leaf essential oil of Dendropanax gonatopodus from Monteverde, Costa Rica, has been obtained by hydrodistillation and the chemical composition determined by GC-MS. The major components in the leaf oil were ( E)-2-hexenal (16.9%), terpinolene (14.8%), δ-cadinene (13.5%), ( E)-caryophyllene (9.9%), and α-copaene (7.3%). Minor amounts of the aromadendrane sesquiterpenoids aromadendrene (0.3%), alloaromadendrene (0.3%), spathulenol (0.6%) and globulol (0.6%) were also detected. An ab initio investigation of the aromadendrane sesquiterpenoids has been carried out using both density functional (B3LYP/6-31G*) and post Hartree-Fock (MP2/6-31G**) methods. The calculated relative energies of the aromadendranes belie their relative concentrations generally observed in essential oil compositions.

Download Full-text