تقدير بعض المعادن الثقيلة في اللحوم المجمدة المباعة في مدينة طرابلس، ليبيا
DOI:
https://doi.org/10.63359/0891ds22الكلمات المفتاحية:
السلامة الغذائية، العناصر الثقيلة، اللحوم المجمدةالملخص
الكشف عن المعادن الثقيلة في الأغذية، وخاصة اللحوم، مهم لأسباب غذائية وسلامة المستهلك. تناولت هذه الدراسة محتوى الرصاص، الكادميوم، النحاس، والزنك في اللحوم المبردة. شملت اللحوم الحمراء العضلات، الكبد، والكلى للأبقار، الأغنام، والإبل. أما اللحوم البيضاء، فشملت العضلات والكبد للدجاج. تم جمع ستة وستين عينة من أسواق اللحوم في طرابلس، ليبيا. استخدم مطياف الامتصاص الذري لتحديد تركيزات المعادن الثقيلة، وتم تحليل البيانات بواسطة برنامج SAS. أظهرت النتائج أن تركيزات الرصاص تتراوح بين 0.0020 إلى 0.1033 ملجم/كجم، في حين أن تركيزات الكادميوم تتراوح بين 0.0074 إلى 0.0947 ملجم/كجم. كما أظهرت النتائج أن تركيزات النحاس كانت أقل من الحد المكتشف (BDL) ملجم/كجم في جميع أنواع اللحوم باستثناء الكبد للأبقار، الأغنام، والإبل، حيث تراوحت تركيزات النحاس بين 42 إلى 100 ملجم/كجم. بالنسبة للزنك، فقد تراوحت التركيزات بين BDL إلى 34 ملجم/كجم في العضلات، وبين BDL إلى 34 ملجم/كجم في الكبد، وبين 28 إلى 34 ملجم/كجم في الكلى. بشكل عام، لم تتجاوز تركيزات جميع العناصر الملوثة والأساسية في أعضاء اللحوم المختارة للحيوانات المختارة الحد الأقصى المسموح به من قبل السلطات الصحية
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