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Register a new userStudy of Oil Percentage and Fatty Acids Contents in 13 Cultivated Wild Olive Types in Mesiaf Region
دراسة نسبة الزيت و محتواه من الحموض الدهنية لـ 13 طرازاً من الزيتون البري المزروع في منطقة مصياف
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تم خلال الموسمين 2007 و 2008 انتخاب 13 طرازاً شكلياً من الزيتون البري المزروع في أربعـة حقول تابعة لمصياف، و تحديد نسبة الزيت ومحتواه من الحموض الدهنية الرئيسية بهدف انتخاب طـرز تصلح لإنتاج زيت الزيتون لإكثارها و زراعتها في مجمع وراثي، و من ثم نشرها و لاسيما أن الطرز تحمل مورثات التأقلم مع ظروف المنطقة. حلّلت النتائج إحصائياً باسـتخدام البرنـامج الإحـصائي stat Gen لحساب أقل فرق معنوي بين القراءات المأخوذة. أظهرت النتائج وجود تنوع كبير فـي الطـرز البريـة المزروعة حيث أدرجت الطرز في خمس مجموعات اعتماداً على نسبة الزيـت و محتـواه مـن حمـض الأولييك. تراوحت نسبة الزيت ما بين 9.3 و 3.27 % مع تباين محتواها من الحموض الدهنية الرئيـسية إذ تراوحت قيم الحمض الدهني أولييك acid Oleic مـابين 7.56 و 5.75 % و أكـدت النتـائج تفـوق الطرازين 1-P1 و 3-P1 بالمعيارين السابقين، و من ثم ينصح بإكثارهما و زراعتها كطرز لإنتاج الزيت.
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 conserve 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.
References used
Acar, H.; Ersoy, B. 1996. Determination of the Organoleptic Characteristics of the Oils Extracted from Some Important Cultivars in the Aegean Region of Turkey. Olivae. No.64 pp.:19-25
AOAC. 2000. Official Method of Analysis of AOAC INTERNATIONAL. Washington: Association of Analytical Chemists. 17 th Ed., Vol. II
Baeten, V.; Hourant, P.; Morales, M. I.; Apericio, R. 1998. Oil and Fat classification by FI-Raman spectocopy. Journal of Agricultural and Food Chemistry. 46 (7): 2638-2646
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