نفّذ هذا البحث لتحديد كمية الزيت العطري المستخلص من أوراق نبات الآس Myrtus communis L. باستخدام التقطير المائي و التعرف على التركيب الكيميائي للزيت العطري و مكوناته الرئيسيّة و الثانويّة، و تحديد كمياتها بواسطة جهاز الكرموتوغرافيا الغازي المرتبط بمطياف الكتلة GC-MS. جُمعت العينات في شهر تشرين الثاني/نوفمبر عام 2013 من ثمانية مواقع مختلفة في ظروفها المناخية (حلب، و زرزور، و الزعينية، و قطرة الريحان، و الريحانة، و كسب، و مشتى الحلو، و مصياف). قدّرت كميّة و تركيب الزيت على أساس الوزن الجاف للأوراق. اختلفت كمية الزيت بين الطرز المدروسة في المواقع المختلفة، حيث تراوحت ما بين (0.46-0.55 مل) دون أن يكون هناك فروق معنوية فيما بينها. تم التعرف على (18) مركباً من مكونات الزيت العطري للآس، و كانت هناك فروق معنوية في (13) مركّباً. تفوق مركب 1,8-Cineole بنسبة (18.85%) مقارنةً مع بقية المكونات، يليه مركبα-Pinene بنسبة (16.93%). بينما بلغت أقل نسبة لمركب Myrcene (0.31%).
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
References used
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Aidi, W.; M. Baya; and M. Rahin (2008). GC comparative analysis of leaf essential oils from two myrtle varieties at different phenological stages chromatographia. 2009, 69: 45- 150
Al-Zuhaeri, A.M. (1982). Study of some chemical and pharmacological properties of Myrtus communis. Msc. thesis Baghdad, Iraq
Single nodes and axillary buds excised from adult trees of Myrtle (Myrtus
communis L.) grown in the field under natural conditions at Damascus
countryside (Ain Elfiegh) were used as primary explants, which were surfacedisinfected
by 70% Ethanol an
Olive trees are grown in many regions of Syria, especially in wet regions
where the olive knot disease (Pseudomonas savastanoi pv.savastanoi ) prevails
.Symptoms similar to those found on olive trees have been observed on myrtle
shrubs (Myrtus com
Bioeffect of some Syrian Myrtus communis L. leaves extracts in growth of some pathogenic microorganisms, which were isolated from Al-Assad hospital laboratory in Lattakia, was tested by disc diffusion method. Results showed that cold and hot water ex
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
Chemical composition of the essential oil of the aerial parts of Artemisia
vulgaris L. (Asteracea), grown in Syria was determined by GC/MS. The oil
obtained by hydrodistillation, was found to contain 55 components, accounting
for 98.82 %.