Four varieties of Safflower seeds grown in Syria in the spring and winter of
2011 were selected.
The Safflower oil was separated from those seeds by extraction using
petroleum ether, and determined the percentage of oil in all studied samples,
th
e proportion of oil ranged from 23.5 to 28.2 % in the winter planting period
and 28.5 to 30.3 % in the spring planting period.
The extracted oils were esterficated for the Gas chromatographic analysis
in order to show the effect of planting period change in the content of fatty
acids. It turns out that the most abundant fatty acid is an Linoleic acid (C18:2)
followed by oleic acid in all items except item N7 grown in the spring which
have convergent rate.
It also shows an increase in the content of (C16:0 and C18:0 and C18:1) and a
decrease in (C18:2) with a change in the period of planting from spring to winter,
except item N7, which showed a decrease in content of (C18:1) and increase in its
content of (C16:0 and C18:0 and C18:2), which led to a change in the iodine value
and all the wintry categories have become half dry oils.
The results indicate that planting period can be an effective major factor in
the quality of oil and fatty acids within its composition, so the ideal period of
planting is very important.
This research aimed to study the effect of various growth conditions
(temperature, culture age and culture medium) on the fatty acids composition
of cytoplasm membrane of 37 isolates of Staphylococcus aureus using Gas
Chromatography-Mass Spectrome
try (GC-MS). Results revealed that the total
number of fatty acids of Staph. aureus was 33. Eight of them were principle and
included: anti-isotetradecanoic acid (aC15:0), octadecanoic acid (C18:0),
eicosanoic acid (C20:0), isotetradecanoic acid (Ci14:0), isotridecanoic acid
(Ci15:0), hexadecanoic acid (C16:0), antisohexa- decanoic acid (Ca17:0) and
octadecenoic acid (C18:1) with a percentage of 33.96, 18.37, 14.94, 7.32, 6.23,
4.14, 3.03 and 2.89%, respectively. The percentage of each of the other fatty
acids was less than 1%. Increasing the incubation temperature was associated
with reducing the percentages of Ca15:0, Ci15:0, C16:0 and C18:1; and
increasing Ca17:0, Ci14:0, C18:0 and C20:0. The increase in incubation period
caused a decrease in C16:0, C18:0, C18:1 and C20:0; and an increase in Ca15:0
and Ca17:0. Moreover, the variation in culture media caused differences in the
percent of Ca15:0, C18:0 and C20:0; while the other fatty acids showed no
changes.
Thirteen phenotypes of cultivated wild olive were selected during 2007- 2008
from four orchards in Mesiaf region, to study oil percentage and fatty acids
contents in these types for choosing types for oil production, in order to
propagate and cons
erve them in a germplasm, and then to be cultivated
because they have adapted to local climate in this region. The results were
analyzed statistically by using Gen-State program to calculate least significant
differences between values. The results confirmed the high biodiversity in these
studied types, and they were classified into five groups according to their oil
percentage and contents of oleic acid. The oil percentage ranged from 3.9 to
27.3 %, and the fatty acids had significant differences between them, the oleic
acid was in olive oil between 56.7 and 75.5%. The types P1-1 and p1-3 showed
the best results for producing oil.
Ten samples of dry, cooked Chickpea, Homos with Tahina, and Falafel were
randomly collected from different places in Damascus and urban side during
2003-2004 with an average weight of 200g for each sample. Chemical
composition, amino acids, fatty
acids, and minerals were determined to
investigate the effect of cooking and frying on the nutritional value of chickpea
products.
The experiment was conducted on 24 brown laying hens at 30
weeks old and were randomly assigned to four groups, each
consisting of six laying hens and put in individual cages stacked in
accordance with the battery system in the unit of poultry fee
d at the
Faculty of Veterinary Medicine, University of Hama, in order to
study the effect of different types of oil and fat on performance,
apparent and true metabolizable energy, and apparent and true fats
digestibility.
Orange fruits contain many materials such as oils in seeds which
have biological and nutritional values, due to that, physical and
chemical properties of orange seed oil (OSO) have been
determined, which extracted from two samples collected from two
areas (Al-ssisanyah and Al-jma'ashyah) which are different in
environmental factors.
