Characterization of cis- and trans-octadecenoic acid positional isomers in edible fat and oil using gas chromatography–flame ionisation detector equipped with highly polar ionic liquid capillary column

2014 ◽  
Vol 160 ◽  
pp. 39-45 ◽  
Author(s):  
Kazuaki Yoshinaga ◽  
Masaharu Asanuma ◽  
Hoyo Mizobe ◽  
Koichi Kojima ◽  
Toshiharu Nagai ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Capillary Column ◽  
Octadecenoic Acid ◽  
Positional Isomers ◽  
Flame Ionisation Detector ◽  
Trans Octadecenoic Acid ◽  
Cis And Trans ◽  
Flame Ionisation ◽  
Ionisation Detector

scholarly journals Investigation of cultivated lavender (Lavandula officinalis L.) extraction and its extracts

2014 ◽  
Vol 20 (1) ◽  
pp. 71-86 ◽  
Author(s):  
Vesna Nadjalin ◽  
Zika Lepojevic ◽  
Mihailo Ristic ◽  
Jelena Vladic ◽  
Branislava Nikolovski ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Essential Oil ◽  
Experimental Results ◽  
Flame Ionisation Detector ◽  
Main Components ◽  
Lavandula Officinalis ◽  
Physical And Chemical ◽  
Kinetics Of ◽  
Flame Ionisation ◽  
Ionisation Detector

In this study essential oil content was determined in lavender flowers and leaves by hydrodistillation. Physical and chemical characteristics of the isolated oils were determined. By using CO2 in supercritical state the extraction of lavender flowers was performed with a selected solvent flow under isothermal and isobaric conditions. By the usage of gas chromatography in combination with mass spectrometry (GC/MS) and gas chromatography with flame ionisation detector (GC/FID) the qualitative and quantitative analysis of the obtained essential oil and supercritical extracts (SFE) was carried out. Also, the analysis of individual SFE extracts obtained during different extraction times was performed. It turned out that the main components of the analysed samples were linalool, linalool acetate, lavandulol, caryophyllene oxide, lavandulyl acetate, terpinen-4-ol and others. Two proposed models were used for modelling the extraction system lavender flower - supercritical CO2 on the basis of experimental results obtained by examining the extraction kinetics of this system. The applied models fitted well with the experimental results.

scholarly journals Analysis of Menthol Steroisomers by Capillary Gas Chromatography with Flame-ionisation Detector

1965 ◽  
Vol 14 (3) ◽  
pp. 129-130 ◽  
Author(s):  
Kunio KOGAMI ◽  
Kazuo AOKI ◽  
Teruo AISAKA ◽  
Tokujiro HASEGAWA ◽  
Ju KUMANOTANI
Keyword(s):  
Gas Chromatography ◽  
Capillary Gas Chromatography ◽  
Flame Ionisation Detector ◽  
Flame Ionisation ◽  
Ionisation Detector

scholarly journals Chemical Composition and Antibacterial Activity of the Essential Oil of Moroccan Juniperus phoenicea

2011 ◽  
Vol 6 (10) ◽  
pp. 1934578X1100601 ◽  
Author(s):  
Bahri Fouad ◽  
Romane Abderrahmane ◽  
Arjouni Youssef ◽  
Harrak Rajae ◽  
M. Ahmed El Alaoui El Fels
Keyword(s):  
Gas Chromatography ◽  
Antibacterial Activity ◽  
Essential Oil ◽  
Chemical Constituents ◽  
Gram Negative Bacteria ◽  
Juniperus Phoenicea ◽  
Flame Ionisation Detector ◽  
Total Oil ◽  
Flame Ionisation ◽  
Ionisation Detector

The antibacterial activity of the essential oil from leaves of Juniperus phoenicea (Cupressaceae) and its chemical constituents were investigated in this study. The essential oil was obtained by hydrodistillation and analyzed by gas chromatography equipped with a flame ionisation detector (GC-FID), and gas chromatography coupled to a mass spectrometer (GC-MS). Sixty-three volatile compounds were identified representing 52 to 92% of the total oil compositions. The main monoterpenes were α-pinene (26.7-78.7%) and δ-3carene (7.6-15.4%). The antibacterial activity of J. phoenicea essential oil, when tested against both Gram-positive and Gram-negative bacteria, showed high activity against all bacteria tested, except Pseudomonas.

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