Daniel A. Cardell

Volatile Constituents of Leaf Oils from the Cupressacea Family: Part I. Cupressus macrocarpa Hartw., C. arizonica Greene and C. torulosa Don Species Growing in Argentina

Abstract Volatile compounds from Cupressus macrocarpa Hartw., C. arizonica Greene and C. torulosa Don. leaves collected in the Argentinian Patagonia were isolated by steam distillation yielding 0.78%, 1.01% and 0.61% of essential oils, respectively. Leaf oils were analyzed by GC and GC/MS. The main constituents of each oil were: (i) C. macrocarpa oil: α-pinene (20.2%), sabinene (12.0%), p-cymene (7.0%) and terpinen-4-ol (29.6%); (ii) C. arizonica oil: α-pinene (22.9%), limonene (8.5%), umbellulone (16.5%), terpinen-4-ol (5.5%) and cis-muurola-4(14), 5-diene (90%); and (iii) C. torulosa oil: α-thujene (4.2%), α-pinene (25.8%), sabinene (22.3%), myrcene (4.7%) and terpinen-4-ol (9.3%).

Essential Oil of Hop Cones (Humulus lupulus L.)

Abstract The essential oil from hop cones (Humulus lupulus L.), which was obtained by steam distillation, was analyzed by GC and GC/MS. The major constituents obtained were: myrcene (25.4%), β-caryophyllene (9.8%), α-humulene (36.7%), α-muurulene (3.0%), γ-cadinene (5.5%) and δ-cadinene (4.1%). Fifteen minor components were also identified. The yield of oil relative to dried hop cones was 0.3%.

Volatile Constituents of the Essential Oil of Nepeta cataria L. Grown in Cordoba Province (Argentina)

ABSTRACT The essential oil of Nepeta cataria L. obtained from plants collected in full bloom stage, was analyzed by GC and GG/MS. Fifteen main components representing more than 95% of the total oil were identified. Nepetalactone (57.30%), dihydronepetalactone (3.43%), β-caryophyllene (8.10%), α-humulene (1.27%), β-farnesene (2.14%), caryophyllene oxide(19.35%) and humulene oxide I (1.63%) were the major components.

Volatile Constituents of Leaf Oils from the Genus Baccharis. Part I: B. racemosa (Ruiz et Pav.) DC and B. linearis (Ruiz et Pav.) Pers. Species from Argentina

Abstract Volatile compounds from Baccharis racemosa (Ruiz et Pav.) DC and two samples of B. linearis (Ruiz et Pav.) Pers. leaves collected in the Argentinean Patagonia were isolated by steam distillation. Yields on the oils were 2.50% for B. racemosa; 0.92% for B. linearis (sample A) and 1.91% for B. linearis (sample B). The leaf oils were analyzed by GC and GC/MS. The main constituents of each oil were: (i) B. racemosa oil: sabinene (13.6%), β-pinene (2.8%), myrcene (2.0%), limonene (13.3%), δ-cadinene (5.3%), (E)-nerolidol (5.0%), viridiflorol (2.6%), α-muurolol (9.7%) and α-cadinol (3.1%); (ii) B. linearis (sample A) oil: α-pinene (6.5%), β-pinene (14.9%), myrcene (2.2%), limonene (27.6%), bicyclogermacrene (2.7%), δ-cadinene (3.9%), caryophyllene oxide (3.1%), cubenol (4.7%) and α-cadinol (4.7%); and (iii) B. linearis (sample B) oil: α-pinene (2.5%), β-pinene (6.5%), limonene (27.7%), β-caryophyllene (2.0%), germacrene D (4.7%), bicyclogermacrene (5.4%), δ-cadinene (6.7%), cubenol (6.0%) and α-cadinol (3.0%).

Volatile Constituents of Leaf Oils from the Genus Baccharis. Part II: Baccharis obovata Hooker et Arnott and B. salicifolia (Ruiz et Pav.) Pers. Species from Argentina

Abstract Volatile compounds from Baccharis obovata Hooker et Arnott and B. salicifolia (Ruiz et Pav.) Pers. leaves collected in the Argentinean Patagonia were isolated by steam distillation. Yields on the essential oils were 2.81% for B. obovata and 1.50% for B. salicifolia. The oils were analyzed by GC and GC/MS. The main constituents of each oil were: (i) B. obovata oil: a-thujene (5.8%), α-pinene (9.2%), sabinene (23.2%), β-pinene (9.9%), myrcene (3.7%), limonene (10.7%), terpinen-4-ol (5.9%); and (ii) B. salicifolia oil: α-thujene (2.1%), α-pinene (4.4%), sabinene (2.9%), β-pinene (5.5%), myrcene (2.2%), α-phellandrene (3.2%), limonene (8.1%), (Z)-(3-ocimene (4.6%), terpinen-4-ol (5.9%), γ-ca-dinene (2.3%), elemol (2.7%), cis-α-copaen-8-ol (2.3%), α-muurolol (5.5%), α-eudesmol (2.7%), verboccidentafuran (2.8%), chromolaenin (3.1%) and dihydroisochromolaenin (2.9%).

Essential Oil of Mentha citrata Grown in Argentina. Variation in the Composition and Yield at Full- and Post-Flowering

ABSTRACT The essential oil of Mentha citrata Ehrh. plants collected in full bloom and at the post-flowering stage, were analyzed by GC and GC/MS. Fourteen main components representing more than 90% of the total oil were identified, the main components being linalool (23.8–35.4%) and linalyl acetate (48.7–60.9%).

Volatile Constituents of Acacia caven (Mol.) Mol. Flower Concrete from Species Growing in Argentina

Abstract A concrete from Acacia caven (Mol.) Mol. flowers collected in the central region of Argentina, at the end of the spring, was isolated by extraction with light petroleum ether yielding 1.09%. Volatile compounds of the concrete were isolated by steam distillation yielding 0.06% (m L of oil/100 g of extracted flowers). Flower oil was analyzed by GC and GC/MS. The main constituents were: geranyl acetone (2.2 %), β-eudesmol (4.0 %), (E,E)-farnesol (3.1 %), (E,E)-farnesyl acetate (6.2 %), nonadecane (15.4 %), kaurene (6.6%), heneicosane (13.5%), tricosane (7.7%) and pentacosane (6.6%). The variation in group content was: monoterpenes (0.9%), diterpenes (7.5%), linear saturated hydrocarbons (49.9%), linear unsaturated hydrocarbons (1.4%), oxygenated sesquiterpenes (9.0%), and other oxygenated compounds (17.0%).

Volatile Constituents of Leaf Oils from the Cupressacea Family: Part II. Austrocedrus chilensis, Fitzroya cupressoides and Pilgerodendron uviferum Species Growing in Argentina

Abstract The oils from Austrocedrus chilensis, Fitzroya cupressoides and Pilgerodendron uviferum leaves collected in the Argentinian Patagonia were isolated steam distillation yielding 0.50%; 0.22% and 0.19% of essential oils, respectively. Leaf oils were analyzed by GC and GC/MS. The main constituents of each oil were: (i) Austrocedrus chilensis oil: α-pinene (535%), myrcene (14.9%) and δ-3-carene (11,9%); (id Fitzroya cupressoides oil: α-pinene (40.8%), spathulenol (5.6%), (Z)-nerolidol (5.5%), cc-cadinol (4.4%) and cis-calamenene (4.4%); and (iii) Pilgerodendron uviferum oil: α-pinene (38.0%), α-bisabolol (13-0%), epi-α-muurolol (12.0%), δ-cadinene (11.9%), limonene (8.0%), β-pinene (3.4%) and myrcene (3.2%).