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A Study of Manufacturing Processed Cheese Spread by Using Local Cheese (White, Kashkawan, Karesh,) as Row Materials

دراسة تصنيع الجبن المطبوخ القابل للمد باستخدام الأجبان المحلية (البيضاء، القشقوان، القريشة) كمواد أولية

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 Publication date 2010
and research's language is العربية
 Created by Shamra Editor




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The aim of this study is to use local cheese and additions in producing processed cheese spread with good sensory and chemical characteristics. The results show that the best mixture can be used through experiment and sensory evaluation, where the percentage of total dry material in produced processed cheese is 38.6%, fat percentage is 53% and total count bacteria after manufacturing & after storage for 8 weeks in temperature of 5-7° is 5×101 cell/g. These bacteria are gram positive rod bacteria spores. This means that heat processing was highly efficient in destroying the green bacterial cells, and storage in temperature of 5-7° doesn't allow growth of bacteria spores. While samples which stored in temperature of 20-25° show increasing total count bacteria from 5×101cell/g directly after manufacturing to 12×101 & 20×101 cell/g after 8 weeks of storage without any changes in quality characteristics. We conclude from these results that this product needs refrigerated storage, for conservation product quality if storage more than 8 weeks.


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Research summary
تهدف هذه الدراسة إلى استخدام الأجبان المحلية والإضافات في إنتاج جبن معالج قابل للدهن يتمتع بخصائص حسية وكيميائية جيدة. أظهرت النتائج أن أفضل خليط يمكن استخدامه من خلال التجربة والتقييم الحسي، حيث كانت نسبة المادة الجافة الكلية في الجبن المعالج المنتج 38.6٪، ونسبة الدهون 53٪، وإجمالي عدد البكتيريا بعد التصنيع وبعد التخزين لمدة 8 أسابيع في درجة حرارة 5-7° هو 5×10 خلية/غرام. هذه البكتيريا هي بكتيريا عصوية موجبة الجرام. وهذا يعني أن عملية المعالجة الحرارية كانت فعالة للغاية في تدمير الخلايا البكتيرية الخضراء، وأن التخزين في درجة حرارة 5-7° لا يسمح بنمو الأبواغ البكتيرية. بينما أظهرت العينات التي تم تخزينها في درجة حرارة 20-25° زيادة في إجمالي عدد البكتيريا من 5×10 خلية/غرام مباشرة بعد التصنيع إلى 12×101 و 20×10 خلية/غرام بعد 8 أسابيع من التخزين دون أي تغييرات في الخصائص النوعية. نستنتج من هذه النتائج أن هذا المنتج يحتاج إلى تخزين مبرد للحفاظ على جودة المنتج إذا تم التخزين لأكثر من 8 أسابيع.
Critical review
دراسة نقدية: تقدم هذه الدراسة مساهمة قيمة في مجال تصنيع الأجبان المعالجة باستخدام الأجبان المحلية، وتسلط الضوء على أهمية التحكم في درجات الحرارة أثناء التخزين للحفاظ على جودة المنتج. ومع ذلك، يمكن تحسين الدراسة من خلال توسيع نطاق التجارب لتشمل أنواع أخرى من الأجبان المحلية وربما استخدام تقنيات تحليلية أكثر تقدمًا لتحديد تأثيرات التخزين على الخصائص الحسية والكيميائية بشكل أدق. كما أن الدراسة تفتقر إلى مناقشة مفصلة حول الآثار الاقتصادية لاستخدام الأجبان المحلية مقارنة بالأجبان المستوردة، وهو جانب مهم يجب أخذه في الاعتبار عند تقييم جدوى الإنتاج على نطاق واسع.
Questions related to the research
  1. ما هي نسبة المادة الجافة الكلية في الجبن المعالج المنتج؟

    نسبة المادة الجافة الكلية في الجبن المعالج المنتج هي 38.6٪.

  2. ما هي درجة الحرارة المثلى لتخزين الجبن المعالج للحفاظ على جودته؟

    درجة الحرارة المثلى لتخزين الجبن المعالج للحفاظ على جودته هي 5-7°.

  3. ما هو تأثير التخزين في درجة حرارة 20-25° على عدد البكتيريا في الجبن المعالج؟

    التخزين في درجة حرارة 20-25° يؤدي إلى زيادة في إجمالي عدد البكتيريا من 5×10 خلية/غرام مباشرة بعد التصنيع إلى 12×101 و 20×10 خلية/غرام بعد 8 أسابيع من التخزين.

  4. ما هي الأنواع البكتيرية التي تم تحديدها في الجبن المعالج بعد التصنيع والتخزين؟

    الأنواع البكتيرية التي تم تحديدها هي بكتيريا عصوية موجبة الجرام.


References used
Al-Banna, K. A. and R. M. Salem. (1987). Manufacture Of Processed Cheese From Uncommon source .Iraq journal of agricultural science (Zanco). 5:161-168
AOAC., Association of Official Analytical Chemists. (2002). Official Methods of Analysis 18th Ed.Margland:AOAC international
Berger, W. H. K. Merkenich, and Uhlmann. (1998). Process cheese Manufacture A joha Guid. B K ?Guilini chemie .Germany
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