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Register a new userThe Analysis of Lipids in Archaeological Clay Cooking Pots Using Gas Chromatography and Gas Chromatography/ Mass Spectrometer
الكشف عن اللبيدات في القدور الفخارية الأثرية بواسطة الكروماتوغرافيا الغازية و الكروماتوغرافيا الغازية المرتبطة مع المطياف الكتلوي
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عبد المجيد شيخ حسين( باحث )
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استخدم الإنسان في معيشته بعد الاستقرار الزراعي أدواتٍ، و أهمها أدوات الطبخ الفخارية مثل القدور و الصحون و غيرها، و قد خلفها آثارًا تدل على طريقة غذائه و معيشته. لذا من المفيد إجراء التحاليل للكشف عن البقايا العضوية في القطع الأثرية الفخارية من قدور الطبخ أو الصحون من منطقة حمص في العصرين الروماني و الإسلامي و خاصة عن اللبيدات التي تملك خاصية مقاومة عوامل البيئة عندما تكون ممتصة في هيكل الفخار، حيث تستخلص بالمحلات المناسبة إما استخلاصًا كليًا أو بالمعالجة القلوية للجزء غير المنحل من الفخار و من ثم تحليل المستخلصات بالكروماتوغرافيا الغازية أو الكروماتوغرافيا الغازية المرتبطة مع المطياف الكتلوي ، و قد أعطت هذه التحاليل معلومات عن وجود حموض كربوكسيلية أحادية وثنائية، وحموض مشبعة وغير مشبعة، كما قيست النسبة C١٦/C١٨ التي بينت بوضوح استخدام الشحوم الحيوانية في قدور الطبخ أو الصحون. و هذا لايمنع طبعًا من استنتاج أن تكون هذه الأدوات قد استخدمت في سلق الطعام أو طهيه باستخدام زيوت نباتية.
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.
References used
Gibson,A.,M.,and Woods, A., Prehistoric Pottery for the archaeologist. Leicester University Press .1999
P. M. Rice, Pottery Analysis: A sourcebook, The University of Chicago press,1987
Christie,W., W., Gas chromatograph y and lipids .Ayr:Orly Press.1998
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