Due to the economical and medical importance of the Melilotus plant and the wide
distribution of this plant in the Syria environment, it was of necessity to study the the
composition of organic matter extracted from the leaves of this plant.
The M
elilotus Officinal organic matter was extracted and purified their where were studied
by GC-Maas spectrometry.
The organic matter was obtained by Soxhlet extractor and by solvent n-Hexane.
Components have been found which was about (99.91%) from the total of Essential Oil.
The major components were extracted by Soxhlet extractor and the following components
were determined : n-Docosane(39.82%) , Hydrocoumarin(15.39%) ,
Methyl 3-(2-hydroxyphenyl)propionate(14.29%).
The major components were determined by solvent n-Hexane:
1,2-Benzenedicarboxylic acid(17.77%) , 9,12,15-octadecatrienoic acid(12.85%)
The effects of the extracted aromatic oil from the leaves of Melilotus plant on some of
Pathogenic Microorganisms were studied.
Chemical composition of the essential oil extracted by hydrodistillation (Clevenger
apparatus) from some aerial parts (ripe and unripe fruit) of Pistacia Atlantica
(Anacardiaceae) which are widely spread throughout the countries of the Mediterranea
n
Sea and have been occupying a good part of the mount of Syria was determined by Gas
Chromatography-Mass Spectrometer GC/MS.
The results of analyzing showed that the oil consist of five compounds in ripe and
unripe fruit, and it was found that the component with the highest ratio in both samples is
the same 2-methylbutanal and its ratio 95.713% in the ripe fruit and 94.138% in the unripe
fruit.
The results of this study also show that the essential oil components of the Syrian
Pistacia fruits are completely different from those in different environments due to the
different types of pistacia species which have been studied and the different environmental
conditions in which this plant grows.
The extracted oil from Gundelia Tournefortii seeds, which belongs to Asteraceae
family and which is known as one of the medical herbal plants that is widely spread in the
Syrian environment, was isolated using soxhlet continuous extraction. It's ch
emical
composition was determined by GC/MS (Gas Chromatography – Mass Spectrometry). The
analysis led to identification of 20 components. The extracted oil was characterized by
high content of Linoleic Acid (52.9%), Palmitic Acid (20.1%) and Squalene (10.1%).
The volatile oil of Anthemis wettsteiniana was studied in
environmentally different regions distributed on five locations in the
provinces of Homs and Hama, in order to determine the quantity and
quality and effect of the surrounding environment,
on the volatile oil
specifications. The plants were gathered during tow phonological
phases of the life of the plant included the vegetative growth stage- the
full of flowering stage. It was then extracted through water extraction
method. It was found that the highest percentage of volatile oil was
recorded in Al-afif location at the full of the flowering stage during
the 2013 season, where the percentage of the volatile oil was 0.12
(ml/100g) ,while the lowest percentage of volatile oil was recorded in
Tal-snan during the 2014 season , the percentage of the volatile oil was
0.04 (ml/100g).
In September-october 2014 the collected air green samples of
zizuphus jujuba was extracted .Suitable conditions were chosen to
separate the components of the volatile oil by the components of the
volatile oil by Gs/Ms and we noticed.
- 16 compoun
ds were found in the extracted volatile oil of the
extraction by petrolium ether, the main compound is palmetoleic acid ,
it form 29.13% of the volatile oil weight , and palmitic acid, it form
15.5% .Also volatile oil of the extracted from fresh leaves by steam
distillation contain 24 compounds, the main compound is Oleamid ,it
from 23.30% of the volatile oil weight.
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
Due to the economical and medical importance of the Capparisspinosa plant and the
wide distribution of this plant in the Syria environment, it was thought that a study of the
composition of Essential Oil extracted from this plant.
The Capparisspin
osa Essential Oil was extracted and purified components wher
studied by GC-Mass spectrometry.
The Oil was obtained by steam distillation (Clevegerexractor) and by solvent n-
Hexane. Components have been found which was about (98.9 %) from the total of
essential oil.
The major components were determined by steam distillation which were the
following:Palmitic acid (21.12%), Hexatriacontane (15.87%), n-Heneicosane (10.96%),
Pentatriacontane (9.92%), Hexahydrofarnesyl acetone (8.51%).
The major components were determined by solvent Hexane: Isobornyl acrylate
(66.89%), 2-Azido-2,3,3-trimethylbutane (6.09%), Ethanolamine (5.41%).
In October 2014, the collected air-green samples of Basil herb were gathered from the region of MashtaAlhulu in the ,Then the volatile oil from fresh samples was extracted with N-Hexane and other samples with steam distilled water, and we have found
the percentage of the volatile oil in the first sample (N-Hexane) is 2,7% , and 2,5% in the second sample (steam distilled water). Suitable conditions were chosen to separate the components of the volatile oil by GC-MS and we noticed : - the first sample (extracted with N-hexane) contain 18 compounds, and they are: Six Terpenes compounds and they form 21.22%,Hydrocarbon compounds form 21.8% from the total weight and they are 7 compounds, and one compound from Ketone class dicycle and its percentage is 2.32%,and two Ester compound and they form 18.96%, One phenolic compound and forms 21.60%, one Ether compound and forms 14.08%. -the volatile oil from the second sample (extracted with steam distilled water) contains 11 compounds, and they are: 6 compounds belong to Hydrocarbon class and they are the main components in the volatile oil with a 91.24% of the oil total weight, One compoundfrom Ether class forms 1.62%, one phenolic compound which forms 3.93%, and three Terpenes compounds and they form 3.17%.
The volatile oil of Anthemis scariosa was studied in environmentally
different regions distributed on five locations in the provinces of Homs and
Hama, in order to determine the quantity and quality and effect of the
surrounding environment, on th
e volatile oil specifications. The plants
were gathered during tow phonological phases of the life of the plant
included the vegetative growth stage- the full of flowering stage. It was
then extracted through water extraction method. It was found that the
highest percentage of volatile oil was recorded in Al-hamra location
at the full of the flowering stage during the 2013 season.
The research aims to study the effect of five harvesting wed (vegetative growth, the
beginning of open inflorescences flowering, the beginning of flowering, full bloom, and
completeness of the vegetative growth at the beginning of the month of Sept
ember and that
of plants that have already cutted), some of the morphological and productivity indicators
for common thyme Thymus vulgaris L . Experiment was designed by the complete
randomized manner in three replicates. Statistical analysis was performed by Anova test
using Genestat and account teams less moral LSD at a significance level of 5%. Results
showed superiority date mower fifth morally on the rest of the dates in terms of index
number of branches (16.50 branch / plant), productivity of the wet weight (55.00 g / plant),
productivity of dry matter (27.08 g / plant), while the superiority of the date of the second
mowing morally the rest of the appointments in terms of the percentage of essential oils
(size / weight) (2.10%), also reached the top of the plant at the time of his high mowing
fourth (21.50 cm).
Highlights the importance of the results by identifying the optimal harvesting date to
get the most fresh and dry weight of material and the highest percentage of essential oil,
and the resulting economic return to the farmer healthy and beneficial to the consumer,
with the continued preservation of the existence of the plant and its tender.
