Chemosystematic studies in the genus Tsuga. Leaf and twig oil analysis of western hemlock

1975 ◽  
Vol 53 (9) ◽  
pp. 933-939 ◽  
Author(s):  
E. von Rudloff
Keyword(s):  
Chemical Composition ◽  
Eastern Hemlock ◽  
Western Hemlock ◽  
Bornyl Acetate ◽  
Oil Analysis ◽  
Volatile Oils ◽  
The Family ◽  
Leaf Oil ◽  
Different Populations ◽  
And Storage

The chemical composition of the volatile oils of the leaves and twigs of western hemlock and the variations caused by transportation and storage, and those found within trees and within populations, were determined. Whereas the leaf oil was found to be well suited for chemosystematic studies, that of the twigs is unsatisfactory. The major components (3–25%) of the leaf oil were β-phellandrene, myrcene, α-pinene, β-pinene, cis-ocimene, limonene, and α-phellandrene and smaller amounts of α-terpineol, methyl thymol, terpinolene, cadinene and muurolene isomers and their corresponding alcohols, terpinene-4-ol, trans-ocimene, camphene, γ-terpinene, bornyl acetate, thymol, and nerolidol were identified. cis-Ocimene (8–14%) appears to be highly characteristic of the species and it, as well as other quantitative differences, may serve as a distinguishing feature with regard to mountain hemlock, eastern hemlock, and other species of the family Pinaceae. Leaf samples from 10 trees give terpene patterns that are representative of a population; no significant differences at different elevations (10–700 m) were recorded. Although the means of the major terpenes from different populations may vary by several percent, consistent differences between coastal and interior populations of British Columbia were not found.

Chemosystematic studies in the genus Abies. II. Leaf oil analysis of grand fir

1976 ◽  
Vol 54 (16) ◽  
pp. 1926-1931 ◽  
Author(s):  
E. von Rudloff
Keyword(s):  
Mass Spectrometer ◽  
Geographical Variation ◽  
Geranyl Acetate ◽  
Bornyl Acetate ◽  
Oil Analysis ◽  
Gas Chromatograph ◽  
South Central ◽  
White Fir ◽  
Leaf Oil

The volatile leaf oil of the grand fir consists mainly of (−)-α-pinene, (−)-camphene, (−)-β-pinene, (−)-β-phellandrene, (−)-bornyl acetate, cadinene and muurolene isomers, and two cubebol isomers. Santene, tricyclene, myrcene, car-3-ene, limonene, terpinolene, p-cymene, camphenolene aldehyde, camphor, borneol, terpinen-4-ol, α-terpineol, citronellyl and geranyl acetate, α-cubebene, α-copaene, calamenene, and two farnesol isomers were also isolated. Attempts to identify these terpenes with a combined gas chromatograph – mass spectrometer failed to give unequivocal data and identities had to be confirmed by isolation and recording of other spectra. Except for β-pinene and β-phellandrene, within-tree and tree-to-tree variation of terpene percentages was relatively small. The leaf oil terpene composition appears to be well suited to determine geographical variation. Only minor differences were recorded between some northern coastal and interior populations, but samples from south-central Oregon showed major differences that are indicative of introgression with white fir.

GAS–LIQUID CHROMATOGRAPHY OF TERPENES: PART X. THE VOLATILE OILS OF THE LEAVES OF SITKA AND ENGELMANN SPRUCE

1964 ◽  
Vol 42 (5) ◽  
pp. 1057-1062 ◽  
Author(s):  
E. VON RUDLOFF
Keyword(s):  
Liquid Chromatography ◽  
Sitka Spruce ◽  
Bornyl Acetate ◽  
Gas Liquid Chromatography ◽  
Volatile Oils ◽  
Percentage Composition ◽  
Average Percentage ◽  
Engelmann Spruce ◽  
Leaf Oil ◽  
Aliphatic Esters

The leaf oils from Sitka and Engelmann spruce were obtained in 0.36 and 0.094% yield respectively. The average percentage composition was determined by gas–liquid chromatography. Sitka spruce leaf oil was found to contain mainly d-myrcene (23.5%), l-piperitone (23.2%), and d-camphor (17.2%). Smaller amounts of 1,8-cineole, l-β-phellandrene, p-cymene, two aliphatic esters, d-bornyl acetate, d-borneol, and d-terpinen-4-ol were also isolated and several other esters appeared to be present in small amounts. Engelmann spruce leaf oil was found to contain mainly cis-hex-3-en-1-ol (18.5%), d-camphor (16.0%), d-bornyl acetate (8.6%), d-linalool (5.8%), and two unidentified compounds. Smaller amounts of myrcene, β-phellandrene, p-cymene, piperitone, and several sesquiterpenoids were also recorded. Tricyclene, α-pinene, camphene, β-pinene, 3-carene, limonene, γ-terpinene, and terpinolene were found in small amounts in both oils.Phylogenetic relationships between the different spruces and other conifers are discussed.

scholarly journals The Chemical Composition of the Essential Oils from the Leaf, Stem-Bark and Twig of Terminalia mantaly H. Perrier (Combretaceae) from Nigeria

2020 ◽  
Vol 1 (5) ◽  
Author(s):  
Olajumoke Mariam Owoade ◽  
David Gbenga Oke
Keyword(s):  
Gas Chromatography ◽  
Chemical Composition ◽  
Essential Oils ◽  
Mass Spectrometer ◽  
Principal Component ◽  
Volatile Oil ◽  
Stem Bark ◽  
Volatile Oils ◽  
Leaf Oil ◽  
Xylene Isomers

The essential oils from the leaf, stem-bark and twig of Terminalia mantaly were isolated by hydrodistillation. The volatile oils analysed on Gas Chromatography (GC) and Gas Chromatography – Mass Spectrometer (GC - MS). The identified constituents were twelve, twenty-three and seventeen for the leaf, stem-bark and twig and accounted for 89.57%, 95.77%, 95.92% respectively. Hexahydrofarnesylacetone (30.05%) and Z-pinane (16.71%) were the main constituents in the leaf oil and nonanal (21.16%) and heptanal (10.57%) were principal component in the stem-bark volatile oil. Xylene isomers namely, meta and para (21.98%-23.56%) were the major components of the twig with substantial amount of nonanal (13.64%).

Chemosystematic studies in the genus Abies. III. Leaf and twig oil analysis of amabilis fir

1977 ◽  
Vol 55 (24) ◽  
pp. 3087-3092 ◽  
Author(s):  
E. von Rudloff ◽  
R. S. Hunt
Keyword(s):  
Gas Chromatography ◽  
Volatile Oil ◽  
Quantitative Variation ◽  
Bornyl Acetate ◽  
Oil Analysis ◽  
Acetate Methyl ◽  
Leaf Oil ◽  
Cis And Trans

The volatile oil of the leaves, and also the twigs, of amabilis fir consists mainly of (−)-β-phellandrene, (+)-car-3-ene, (−)-β-pinene, (−)-α-pinene, myrcene, (−)-limonene, terpinolene, β-sesquiphellandrene, and β-bisabolene. Smaller relative amounts of santene, tricyclene, camphene, sabinene, α-phellandrene, cis- and trans-ocimene, γ-terpinene, linalool, terpinen-4-ol, α-terpineol, bornyl acetate, methyl thymol, thymol, α-cubebene, α-copaene, caryophyllene, humulene, and cadinene–muurolene isomers and their corresponding alcohols were also identified. The presence of three minor diterpene hydrocarbons and manool was indicated by gas chromatography – mass spectrometry.The quantitative variation within trees, between trees, and among northern, central, and southern populations was determined. The high tree-to-tree variability obscures any significant (P = 0.05) geographic trend that may exist. Several qualitative and many significant quantitative differences exist between the leaf oil compositions of amabilis, grand, alpine, and balsam firs andpossibly also noble, white, and California red firs, and these can serve well in chemosystematic studies.

Chemosystematic studies in the genus Pseudotsuga. I. Leaf oil analysis of the coastal and Rocky Mountain varieties of the Douglas fir

1972 ◽  
Vol 50 (5) ◽  
pp. 1025-1040 ◽  
Author(s):  
E. von Rudloff
Keyword(s):  
Ecological Factors ◽  
Quantitative Measure ◽  
Rocky Mountain ◽  
Douglas Fir ◽  
Population Variation ◽  
Geranyl Acetate ◽  
Bornyl Acetate ◽  
Oil Analysis ◽  
Leaf Oil ◽  
Distinguishing Features

The volatile leaf oils of the coastal and Rocky Mountain varieties of the Douglas fir were found to have distinctive terpene compositions. The relative amounts of l-β-pinene, sabinene, 3-carene, α- and γ-terpinene, terpinolene, l-terpinen-4-ol, citronellol, citronellyl and geranyl acetate (relatively large in the former variety); and santene, tricyclene, l-camphene, limonene, and l-bornyl acetate (relatively large in the latter variety) may serve as distinguishing features. n-Hexenal, l-α-pinene, α- and β-phellandrene, linalool, fenchyl alcohol, and l-α-terpineol were also isolated. The within-tree and within-population variation of the amounts of these terpenes as well as populational differences from Calgary through the foothills to Revelstoke were small. Intermediate compositions were encountered as far west as the Cascades and one may distinguish clearly between interior and coastal intermediate terpene patterns. Between Keremeos and Hedley the terpene pattern was essentially that of the Rocky Mountain variety whereas at Jasper intermediate patterns leaning towards coastal intermediates were recorded. Analysis of the leaf oils from five different provenances of coastal populations indicated that a north–south cline may exist. Provenance samples showed conclusively that the terpene patterns are genetically controlled and are not influenced by ecological factors. Hence these terpene patterns may serve as a genetic guide and provide a quantitative measure of coastal, intermediate, and Rocky Mountain types of populations.

scholarly journals Essential Oil Analysis of the Follicles of Four North American Magnolia Species

2008 ◽  
Vol 3 (7) ◽  
pp. 1934578X0800300 ◽  
Author(s):  
Wolfgang Schühly ◽  
Samir A. Ross ◽  
Zlatko Mehmedic ◽  
Nikolaus H. Fischer
Keyword(s):  
United States ◽  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
North American ◽  
Steam Distillation ◽  
Southeastern United States ◽  
Bornyl Acetate ◽  
Oil Analysis

The chemical composition of the essential oils obtained by steam distillation of fruits (follicles) of Magnolia fraseri Walt., M. tripetala L., M. acuminata L., and M. grandiflora L., collected in the Southeastern United States, were studied by GC/MS. A total of 35 out of 41 components were identified, most of which were monoterpenes and sesquiterpenes. Among the four investigated species, only few similarities in the compound patterns were found. The major constituents (> 10% of the essential oil) were found to be trans-nerolidol (20.0%) and 9-oxofarnesol (11.0%) in M. acuminata, β-pinene (26.3%) and β-myrcene (13.1%) in M. fraseri, β-elemene (12.2%) in M. grandiflora and bornyl acetate (17.0%), and β-caryophyllene (21.0%) and α-humulene in M. tripetala.

Chemosystematic studies in the genus Abies. I. Leaf and twig oil analysis of alpine and balsam firs

1974 ◽  
Vol 52 (3) ◽  
pp. 477-487 ◽  
Author(s):  
R. S. Hunt ◽  
E. von Rudloff
Keyword(s):  
Morphological Characters ◽  
Balsam Fir ◽  
Gas Liquid Chromatography ◽  
Abies Lasiocarpa ◽  
Oil Analysis ◽  
Green Mountain ◽  
Volatile Oils ◽  
Last Glaciation ◽  
Southern Alberta ◽  
Leaf Oil

The volatile oils of the leaves and twigs of alpine fir, and western and eastern Canadian balsam fir were analyzed by gas–liquid chromatography. Many qualitative similarities were found and the within-tree and tree-to-tree variation of the quantitative terpene composition of the leaf oil was sufficiently small to permit a chemosystematic study. Abies lasiocarpa and A. balsamea may be differentiated by the relative amounts of β-pinene, 3-carene, β-phellandrene, trans-ocimene, piperitone, methyl thymol, and thymol. Consistent quantitative differences were also found between eastern and western A. balsamea, and the populations in the Lesser Slave Lake and Battle Lake regions of central Alberta gave intermediate terpene data, which suggests introgression between A. lasiocarpa and western A. balsamea. Thus a cline between A. lasiocarpa and A. balsamea, with western balsam fir populations as bridge, may have existed after the last glaciation. The alpine fir populations of southern Alberta, and eastern and central British Columbia gave uniform terpene data, but five trees sampled on Green Mountain, Vancouver Island, gave significantly different terpene data. These results were substantiated by morphological characters as well as twig oil analysis, but the latter two methods gave less consistent data than leaf oil analysis.

scholarly journals Influence of storage temperatures and storage time of dry leaves on patchouli [Pogostemon cablin (Blanco) Benth.] essential oil

2020 ◽  
Vol 36 (4) ◽  
Author(s):  
Maria de Fatima Arrigoni-Blank ◽  
Priscilla Santana Santos ◽  
Arie Fitzgerald Blank ◽  
Fabiany de Andrade Brito ◽  
Thiago Matos Andrade ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Storage Time ◽  
Oil Content ◽  
Oil Quality ◽  
Randomized Design ◽  
Pogostemon Cablin ◽  
The Family ◽  
And Storage ◽  
Storage Temperatures

Patchouli [Pogostemon cablin (Blanco) Benth.] is a plant of the family Lamiaceae, widely used as an essential oil in the cosmetics and perfumery industry. This study aimed to evaluate the influence of storage time and temperature of dry leaves on the patchouli essential oil content and chemical composition. The experiment was performed in a completely randomized design in a 6x2x2 factorial scheme, testing storage time (0, 1, 2, 4, 8, and 16 weeks) and temperature (28°C and 33°C) of dry leaves of two patchouli genotypes (POG-015 and POG-021).  The variables essential oil content and chemical composition, and the identification of fungus during storage were evaluated. Results showed that the storage significantly influenced the essential oil content. Patchoulol was identified as the major compound in both genotypes, ranging from 55.05% to 68.77% (POG-15) and from 52.83% to 64.06% (POG-021). Based on the results of patchoulol, dry leaves of both genotypes (POG-015 and POG-021) can be stored for up to eight weeks at 28- 33°C without altering the essential oil quality.

Chemical composition and antibacterial activity of essential oils from different populations of Artemisia incana (Asteraceae) from Iran

Planta Medica ◽  
2009 ◽  
Vol 75 (09) ◽  
Author(s):  
M Atri ◽  
A Chehregani ◽  
S Yousefi ◽  
F Jalal
Keyword(s):  
Antibacterial Activity ◽  
Chemical Composition ◽  
Essential Oils ◽  
Different Populations
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