الخواص الكيميائية للزيت المستخلص من أربعةأصناف من بذورالتمرالمزروعة في الخمس بليبيا
DOI:
https://doi.org/10.59743/jbs.v33i2.198الكلمات المفتاحية:
بذور التمر، استخلاص زيت البذور، سوكسليت، الخواص الكيميائيةالملخص
يتم التخلص من نواة نخيل التمركنفايات، لذلك أجريت دراساتنا على أربعة أصناف من نواة التمرالمزروعة في ليبيا، وهي أم فيتيتي، طابوني، وعامي، ورهط. وتمت انتاجية الزيت المستخلص عند ساعتين من زمن الاستخلاص من حجم 0.5 مم من مسحوق نواة التمر باستخدام جهاز الاستخلاص ( سوكسليت ) (soxhelt extractor )والتولوين كمذيب. تم الحصول على أكبرنسبة من انتاجية الزيت من بذورالتمر لصنف أم فتيتي (8.9٪). وتراوحت قيمة الرقم الحمضي (2.02 -2.4 ملجمKOH / جم) مم اي دل على أن بذورالأوم فيتيتي لها قيمة رقم حمضي عالية (2.4 ملجمKOH / جم) ونسبة عالية من الأحماض الدهنية الحرة (1.2٪ FFA). بينما كانت قيمة رقم التصبن عالية (527.434 مجمKOH / جم) في زيت صنف الطابوني والتي كانت بها أعلى قيمة لرقم الاستر (525.234 مجمKOH / جم).
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