The research aims to Study the fatty acids composition of each of (Rapeseed-
Borage-Soya bean) Oil Syrian Gas Chromatography-invasive manner, and compare the
results with global studies of the same studied oils, and shed light on both the Syrian
o
ils(Rapeseed- Borage) to be used as substitutes or mixtures of health benefit or as a drug.
the study showed that the importance of the oil lies in the amount of the percentages of
unsaturated fatty acids UFA and Polyunsaturated fatty acids PUFA and Monounsaturated
fatty acids MUFA, with the highest values in the UFA installation Syrian oils to Rapeseed
oil < Borage oil < Soya bean oil, search results compared Rapeseed oil and improved
processor and the highest percentage of genetically MUFA also showed the back of Syrian
oil Borage percentage of MUFA less, but The best percentage of PUFA clear appeared in
the oil Borage.
The study was conducted on randomized samples of virgin olive oils
collected from Hama, Aleppo, Daraa, Latakia, Homs and Idleb to investigate
the relationship between the quality indices of oil purity (peroxide value, the
figure iodine, coefficien
t of acidity, the absorption coefficient qualitative Xultraviolet
K270 and distributed fatty acids) and related volatile flavor
components compared with what is published in the literature. The results also
showed that the quality indices of Hama and Lattakia، s samples in terms of
extra virgin olive oil and the first class of virgin olive oil were not compatible
with the Syrian Standards and metrology (2000/182) while the concentrations
of fatty acids for samples of Idleb, Homs, Latakia, Deraa and Aleppo were
within the scope of Syrian standard. However, their distribution in Hama
samples did not comply with the ratios set forth in the Syrian specifications.
Forty three volatile compounds were isolated and they correspond with what is
published. The samples of research showed somewhat of similarity to a large
extent with the exception of a sample of Hama, where a decline was observed in
the content of volatile flavored materials. It was noticed that the essential
composition of volatile compounds of the samples was aldehydes followed by
ester of fatty acids and then hydrocarbons. The study showed that the
technique used in this research was fast and efficient in extraction and
identification of volatile compounds.
The ancient people had used and kept a lot of tools and most important of
all were clay cooking pots and dishes, etc.., and they left them as remains to tell
about the way they were living and feeding . So, it was quite important to carry
out some
analysis on the organic residue of archaeological clay sherds from
cooking pots or dishes from the area of Homs from the era of the Roman and
Islam. A Special attention was focused on the analysis of lipids, which have the
properties of resisting the effect of the environment after it is absorbed in the
clay matrix. Lipids can be extracted with suitable solvents, either total
extraction, or after the treatment of the undisolved portion of the clay with
alkaline. Analysis using gas chromatography and gas chromatography - mass
spectrometery, revealed the existence of mono and di carboxylic acids,
saturated and unsaturated fatty acids, alkanes, and mono, di, and tri glycerides.
The measurement of the ratio C١٦/C١٨ gave the indication to the use of animal
fats in these pots.
In this research, the changes on these seeds during storage:
total oil, volatile oil, and the major components of volatile oils were
determined. A decrease in the total and volatile oils and all
components of volatile oils were found.
The identification of the cumin oil composition was determined
qualitatively and quantitatively by GC, using standard compounds.
The components of the cumin seed oil (Cuminaldehyde, p-cymen
and β-penine) were matched with the standard compounds.
The factors effect on some components of cumin seed volatile oil
were studied.
The effects of time and temperature on the cumin seeds
components were studied, the results have been shown that the total
oil and volatile oil and its main components decreases with the
passing of time and with the increasing of temperature.
The research aims to identify incoming fatty acids in the composition of both the
Syrian domestic oil extracted from the seeds of Nigella sativa, fenugreek, borage and
Rocket , using gas chromatography GC, as the goal to identify some of the most i
mportant
physical properties ( density and refractive index ) and chemical ( Iodine number and
saponification number ) utmost to improve and develop the Syrian varieties of the studied
oils.
Search Results showed that borage oil contain the highest proportion of the Poly
unsaturated fatty acids ( 81.5% ) PUFA and the highest percentage of gamma -linolenic
acid ( 14.4% ) GLA, and it was for each of Nigella sativa oil and oil fenugreek close by
percent's of ( 60.89%-60.95% ) PUFA, and overall mono unsaturated fatty acids ( 33.89%-
28.19% ) MUFA and linoleic acid ( 60.71%-58.92% ) LA has the enjoyment of the highest
value oil ring of oleic fatty acid ( 26.72% ), while oil Rocket had the highest values ( 79%)
MUFA so different from the rest of the studied oils. The results of this research clearly
compatible with the results of global studies at the same oils.
This research was carried out to determine the quantity of essential oil extracted
from myrtle Myrtus communis L leaves, by hydro distillation, and to identify the
major and minor components, besides to determine its quantities in the essential oil
by Gas Chromatography-Mass Spectrometry GC-MS. The samples were collected
on November 2013 from eight different climatic locations (Aleppo, Zarzour, Alzenea,
Katra AL-Rayhan, Al- Rayhana, Kasab, Mashta al-Holou and Mosiaf). The
quantity and composition of the essential oil were estimated on the basis of the
leaves dry weight. Oil quantity varied between the studied genotypes from different
locations, which range from 0.46 to 0.55 ml, with non-significant differences.
Eighteen compounds were identified in myrtle essential oil, and there were
significant differences in 13 compounds. 1,8-Cineole performed the highest rate
(18.85%) compared with other components, followed by α-Pinene (16.93%). While
the lowest percentage was (0.31%) of Myrcene. The
