The lipid composition of cashmere goat fleece

1995 ◽  
Vol 46 (6) ◽  
pp. 1259 ◽  
Author(s):  
GC Hillbrick ◽  
DJ Tucker ◽  
GC Smith
Keyword(s):  
Mass Spectrometry ◽  
Fatty Acids ◽  
Gas Chromatography ◽  
Fatty Acid Composition ◽  
Chemical Composition ◽  
Capra Hircus ◽  
Gas Chromatography Mass Spectrometry ◽  
Cashmere Goat ◽  
Cashmere Goats ◽  
Chloroform Methanol

This study examined the differences in the chemical composition of the lipid extracted from the fleeces of intact and gonadectomized Australian cashmere goats (Capra hircus laniger). Lipid was extracted with either petroleum ether or chloroform/methanol, and analysed by gas chromatography and gas chromatography/mass spectrometry. A large number of buck specific fatty acids (29), which could be potential pheromones, were identified or tentatively identified. The fatty acid composition of buck fleece lipid is more complex than previously reported.

scholarly journals Fatty Acid Composition of Juniperus Species (Juniperus Section) Native to Turkey

2012 ◽  
Vol 7 (7) ◽  
pp. 1934578X1200700 ◽  
Author(s):  
Ayşegül Güvenç ◽  
Nurgün Küçükboyacι ◽  
Ahmet Ceyhan Gören
Keyword(s):  
Mass Spectrometry ◽  
Fatty Acids ◽  
Gas Chromatography ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Gas Chromatography Mass Spectrometry ◽  
Seed Oils ◽  
Juniperonic Acid ◽  
Fatty Acid Patterns ◽  
Fatty Acid Compositions

Fatty acid compositions of seeds of five taxa of the Juniperus section of the genus Juniperus L. (Cupressaceae), i. e. J. drupacea Lab., J. communis L. var. communis, J. communis var. saxatilis Pall., J. oxycedrus L. subsp. oxycedrus, and J. oxycedrus subsp. macrocarpa (Sibth. & Sm.) Ball, were investigated. Methyl ester derivatized fatty acids of the lipophylic extracts of the five species were comparatively analyzed by capillary gas chromatography-mass spectrometry (GC-MS). Juniperus taxa showed uniform fatty acid patterns, among which linoleic (25.8–32.5%), pinolenic (11.9–24.1%) and oleic acids (12.4–17.2%) were determined to be the main fractions in the seed oils. Juniperonic acid was found to be remarkably high in J. communis var. saxatilis (11.4 %), J. oxycedrus subsp. oxycedrus (10.4 %), and J. communis var. communis (10.1 %). To the best of our knowledge, the present work discloses the first report on the fatty acid compositions of seeds of this Juniperus section grown in Turkey.

Cellular fatty acids of Peptococcus variabilis and Peptostreptococcus anaerobius

1977 ◽  
Vol 5 (6) ◽  
pp. 665-667
Author(s):  
C W Moss ◽  
M A Lambert ◽  
G L Lombard
Keyword(s):  
Mass Spectrometry ◽  
Fatty Acids ◽  
Gas Chromatography ◽  
Analytical Techniques ◽  
Gas Chromatography Mass Spectrometry ◽  
Cellular Fatty Acids ◽  
Chromatography Mass Spectrometry ◽  
Branched Chain

Cellular fatty acids of Peptococcus variables and Peptostreptococcus anaerobius were identified by gas chromatography, mass spectrometry, and associated analytical techniques. Iso- and anteiso-branched-chain acids were major components in both species.

scholarly journals Fatty Acids Produced by Neofusicoccum vitifusiforme and N. parvum, Fungi Associated with Grapevine Botryosphaeria Dieback

Agriculture ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 189 ◽  
Author(s):  
Maria Salvatore ◽  
Selene Giambra ◽  
Daniele Naviglio ◽  
Marina DellaGreca ◽  
Francesco Salvatore ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Fatty Acids ◽  
Gas Chromatography ◽  
Fatty Acid ◽  
Linoleic Acid ◽  
Gas Chromatography Mass Spectrometry ◽  
Fungal Pathogenicity ◽  
Botryosphaeria Dieback ◽  
Plant Pathogen Interaction ◽  
Abundant Fatty Acid

There is evidence that secondary metabolites are involved in the fungal pathogenicity and virulence of Neofusicoccum spp. Fatty acids may also influence the plant–pathogen interaction but, so far, no information is available on their production by species of Neofusicoccum associated with Botryosphaeria dieback, which is a well-known syndrome of several plants with a complex etiology. In the present paper, the production of fatty acids in liquid medium, by strains of N. vitifusiforme and N. parvum associated with declining Sicilian vine plants, was evaluated. Data, acquired via gas chromatography–mass spectrometry (GC/MS), show the presence of linoleic acid as the most abundant fatty acid produced by both examined strains. In addition, the pathogenicity of N. vitifusiforme was tested on 2-year-old grapevine plants of cv. Inzolia.

scholarly journals Chemical composition and insecticidal activity of Garcinia gardneriana (Planchon & Triana) Zappi (Clusiaceae) essential oil

2021 ◽  
Vol 20 (5) ◽  
pp. 503-514
Author(s):  
Carla Maria Mariano Fernandez ◽  
◽  
Fabiana Brusco Lorenzetti ◽  
Sirlene Adriana Kleinubing ◽  
Joao Paulo Pinguello de Andrade ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Chemical Composition ◽  
Chemical Analysis ◽  
Essential Oil ◽  
Immersion Test ◽  
Acaricidal Activity ◽  
Gas Chromatography Mass Spectrometry ◽  
Larvicidal Effect ◽  
Sesquiterpene Hydrocarbons

The present study aimed to analyze the chemical composition of the essential oil from Garcinia gardneriana (Planchon & Triana) Zappi leaves and fruits, and to determine its acaricidal activity on Rhipicephalus microplus by larval packet test and larvicidal action on Aedes aegypti by larval immersion test. The chemical analysis of the essential oil by gas chromatography-mass spectrometry identified sesquiterpene hydrocarbons and oxygenated sesquiterpenes in bacupari leaves and fruits, and α-cedrene, α-chamigrene, α-trans-bergamotene, and β-curcumene as major compounds. Essential oil from leaves of G. gardneriana presented acaricidal activity on R. microplus (LC50 = 4.8 mg/mL; LC99 = 10.8 mg/mL) and larvicidal effect on A. aegypti (LC50 = 5.4 mg/mL; LC99 = 11.6 mg/mL), whereas essential oil from the fruits of G. gardneriana showed LC50 = 4.6 mg/mL and LC99 = 8.9 mg/mL against R. microplus and LC50 = 6.4 mg/mL and LC99 = 13.9 mg/mL against A. aegypti. These results thus demonstrate the potential acaricidal and larvicidal activity of essential oil of G. gardneriana, offering new perspectives for the realization of bioassays from this essential oil.

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