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A study of Wheys from processing of some local cheeses in production of some soft drinks

دراسة المصل الناتج أثناء صناعة بعض أنواع الجبن المحلي لاستخدامه في صناعة بعض أنواع المشروبات المرطبة

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 Publication date 2013
and research's language is العربية
 Created by Shamra Editor




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This research investigates the ability of using cheese whey in producing soft drinks supported with natural juices (peach, orange, apple, and pomegranate). Two kinds of whey (sweet and sour) were prepared in the laboratory, and their most important organoleptic and chemical properties were determined. The percentages of total solids and lactose in sweet whey were 6.2 ±0.2% and 4.5 ±0.2% respectively, while for sour whey were 5.4 ±0.2% and 3.8 ±0.2%. Organoleptic evaluation showed that the fresh sweet whey had medium ability for consumption, while sour whey was rejected by the team of tasters with a significance level of 5%. Organoleptic evaluation also showed that the best percentage for the mixture of sweet whey and juice is 50:50 (v/v) with a very good degree of acceptance. Statistical analysis indicated that the produced drink from orange juice was the best drink at 5% significance level. It was followed by the juices of pomegranate, apple and peach respectively. As a result the sweet whey may be used after mixing it with the other studied juices at a percentage exceeding 40%, (best value is 50%) for the production of good soft drink. This produced drink must be consumed within a maximum period of 24 hours because of its low storability due to the absence of preservatives and heat treatment. Improving this storability requires further studies.


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Research summary
تتناول هذه الدراسة إمكانية استخدام مصل الجبن في إنتاج مشروبات مرطبة مدعمة بعصائر طبيعية مثل الدراق، البرتقال، التفاح، والرمان. تم تحضير نوعين من المصل (الحلو والحامضي) في المختبر وتحديد خصائصهما الحسية والكيميائية. أظهرت النتائج أن المصل الحلو كان مقبولًا بشكل متوسط للاستهلاك، بينما المصل الحامضي لم يكن مقبولًا. أظهرت التقييمات الحسية أن أفضل نسبة خلط للمصل والعصير كانت 50:50، حيث كانت درجة القبول جيدة جدًا. تفوق المشروب المصنع من عصير البرتقال على الأنواع الأخرى، يليه عصير الرمان، التفاح، والدراق. يمكن استخدام المصل الحلو بعد خلطه بأحد العصائر بنسبة تزيد عن 40% لإنتاج مشروب مرطب يجب استهلاكه خلال 24 ساعة بسبب انخفاض قابليته للتخزين. توصي الدراسة بإجراء المزيد من الأبحاث لتحسين قابلية التخزين.
Critical review
تعتبر هذه الدراسة خطوة جيدة نحو الاستفادة من مصل الجبن الذي غالبًا ما يتم التخلص منه. ومع ذلك، هناك بعض النقاط التي تحتاج إلى مزيد من الاهتمام. أولاً، الدراسة لم تتناول بشكل كافٍ تأثير إضافة المواد الحافظة أو المعاملات الحرارية على جودة المشروب وقابليته للتخزين. ثانيًا، لم يتم التطرق إلى الجوانب الاقتصادية بشكل مفصل، مثل تكلفة الإنتاج مقارنة بالمشروبات المرطبة التقليدية. ثالثًا، قد يكون من المفيد دراسة تأثير إضافة غاز ثاني أكسيد الكربون لتحسين الخواص الحسية وزيادة فترة الصلاحية. أخيرًا، يجب إجراء المزيد من الدراسات لتحديد تأثير هذه المشروبات على الصحة العامة، خاصةً للأشخاص الذين يعانون من حساسية اللاكتوز.
Questions related to the research
  1. ما هي أنواع المصل التي تم استخدامها في الدراسة؟

    تم استخدام نوعين من المصل: المصل الحلو والمصل الحامضي.

  2. ما هي أفضل نسبة خلط للمصل والعصير وفقًا للدراسة؟

    أفضل نسبة خلط كانت 50:50 للمصل والعصير.

  3. ما هي العصائر التي تم استخدامها في الدراسة؟

    تم استخدام عصائر الدراق، البرتقال، التفاح، والرمان.

  4. ما هي التوصيات التي قدمتها الدراسة لتحسين قابلية تخزين المشروب؟

    توصي الدراسة بزيادة العمر الزمني للمشروب عبر المعاملات الحرارية مثل البسترة، ودراسة تأثير إضافة المواد الحافظة.


References used
BURRINGTON, KJ. More than just milk., Milk Dairy J., 41, 2002, 227-237
DE WIT, J.N. Lecturer`s. Handbook on Whey and Whey products. European WPA, Belgium, 2001,404
DICK, ZIGGERS. Whey - more than a cheese by-product. Milk Dairy J., 45, 2009, 145- 156
FOISSY, H.. Technologie der Milch. Universität für Bodenkultur Wien; IMB Verlag, Wien, 2005, 315
GOFF, D. Dairy Science and Technology Education, University of GuelPH, Canada, 32, 2005, 432-439
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