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Effect of temperature and exposure time on the stability of plasticizers, which are Used in plastic Packing Industry, in food simulants

تأثير درجة الحرارة و زمن التعريض في ثبات الملدنات المستخدمة في صناعة العبوات البلاستيكية في النظم المحاكية للغذاء

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 Publication date 2011
and research's language is العربية
 Created by Shamra Editor




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Additive migration levels in food simulants from polymeric materials that are intended to be into contact with food can be affected by additive stability under the migration test conditions. In this work, the stability of two plasticizers: Diethylhexyl phthalate (DEHP) and Dibutyl phthalate (DBP) was studies in aqueous food simulants A, B, C and ethanol 95% (as a substitute for olive oil- which is a fatty food simulant- simulant D), at different temperatures 20, 40 and 70 C0, during 20 days. Samples were analyzed by high performance liquid chromatography (HPLC) with UV detector. In general, DEHP and DBP plasticizers appeared to be more stable in both Ethanol (95%) and simulant C than in simulants A and B, while, they are less stable, even at low temperatures, in Simulant B than in simulant A .


Artificial intelligence review:
Research summary
تتناول هذه الدراسة تأثير درجة الحرارة ومدة التعرض على استقرار المواد الملدنة، وهي دي إيثيل هيكسيل فثالات (DEHP) ودي بيوتيل فثالات (DBP)، المستخدمة في صناعة التعبئة البلاستيكية، في محاكيات الطعام. تم اختبار استقرار هذه الملدنات في محاكيات الطعام المائية A، B، C، والإيثانول بنسبة 95% (كمحاكٍ بديل لزيت الزيتون) عند درجات حرارة مختلفة (20، 40، و70 درجة مئوية) على مدار 20 يومًا. تم تحليل العينات باستخدام كروماتوغرافيا السائل عالية الأداء (HPLC) مع كاشف الأشعة فوق البنفسجية. أظهرت النتائج أن الملدنات DEHP وDBP كانت أكثر استقرارًا في الإيثانول (95%) والمحاكي C مقارنة بالمحاكيات A وB، بينما كانت أقل استقرارًا في المحاكي B حتى عند درجات الحرارة المنخفضة مقارنة بالمحاكي A.
Critical review
دراسة نقدية: تعتبر هذه الدراسة مهمة لفهم تأثير العوامل البيئية على استقرار المواد الملدنة المستخدمة في صناعة التعبئة البلاستيكية. ومع ذلك، يمكن توجيه بعض الانتقادات البنّاءة. أولاً، قد يكون من المفيد تضمين مجموعة أوسع من المحاكيات الغذائية لتغطية نطاق أوسع من الأطعمة. ثانيًا، لم يتم التطرق إلى التأثيرات الصحية المحتملة لهذه الملدنات عند انتقالها إلى الأطعمة. ثالثًا، كان من الممكن تحسين الدراسة بإجراء تجارب ميدانية بالإضافة إلى التجارب المخبرية للحصول على نتائج أكثر شمولية. وأخيرًا، قد يكون من المفيد دراسة تأثيرات طويلة الأمد تتجاوز فترة الـ 20 يومًا المذكورة في الدراسة.
Questions related to the research
  1. ما هي الملدنات التي تم دراستها في هذه الورقة؟

    تم دراسة دي إيثيل هيكسيل فثالات (DEHP) ودي بيوتيل فثالات (DBP).

  2. ما هي درجات الحرارة التي تم اختبارها في الدراسة؟

    تم اختبار درجات الحرارة 20، 40، و70 درجة مئوية.

  3. ما هي الطريقة التحليلية المستخدمة لتحليل العينات؟

    تم استخدام كروماتوغرافيا السائل عالية الأداء (HPLC) مع كاشف الأشعة فوق البنفسجية.

  4. أي المحاكيات الغذائية أظهرت استقرارًا أكبر للملدنات؟

    أظهرت الملدنات DEHP وDBP استقرارًا أكبر في الإيثانول (95%) والمحاكي C مقارنة بالمحاكيات A وB.


References used
Figg. E. K. (1980). Migration of Components from Plastics – Packing materials into Packed goods – Test methods and diffusion models., Appl. Polymer Science., 6: 187 – 252
Czerniawski. B., Pogorzelska. Z. (1997). Investigations on Overall Migration of Various Plastic Materials and Articles used in Contact with Foods Stuffs., Packag Technol sci. 10: 261 – 270
Vijoyalakshmi. N. S., Bald Evraj. P., Mohadeviah. M. (1999). Effect of Time and Temperature on the Overall Migration of Additives from Plastics into Food Simulants., Food Packaging Department., Central Food Technological Research Institute, India., 22-26
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Additive migration levels in food simulants from polymeric materials that are intended to be into contact with food can be affected by additive stability under the migration test conditions. In this work, the stability of Dibutyl adipate (DBA), Di isobutyl adipate(DIBA), Diisobutyl phthalate (DIBP), Di-noctyl phthalate (DnOP),and Diethylhexyl sebacate (DEHS).,was studied in aqueous food simulants A, B, C and ethanol 95% (as a substitute for olive oilwhich is a fatty food simulant, simulant D), at different temperatures 20, 40 and 70 ºC, during 20 days. Samples were analyzed by high performance liquid chromatography (HPLC) with UV detector at 270 nm. The stability of the studied compounds appeared to be least of all in simulant B, then in simulant A, and finally in simulant C., When temperature and exposure time increase., on the other hand, the increase in temperature and exposure time have greatly less effect on the stability of plasticizers in ethanol %95,as a substitute for olive oil-which is a fatty food simulant.
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