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The effect of some food additives in the microbial growth of some starter cultures used in the manufacturing of fermented meat

تتأثير بعض المضافات الغذائية في النمو الميكروبي لبعض أنواع البادئات المستخدمة في تصنيع اللحوم المتخمرة

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




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The research aimed to study the contrast between three commercial starter cultures used in the manufacturing of fermented meat and different concentrations of nitrite, salt, lactic acid and black pepper all alone on the impact of inhibition of the microbial growth. The first starter culture contained a mixture of Staphylococcus carnosus and Staphylococcus vitulinus, and the second one contained Lactococcus lactis and Lactobacillus sakei while the third one contained Lactococcus lactis, Lactobacillus sakei, Staphylococcus carnosus and Staphylococcus xylosus. Four concentrations of each additive were individually prepared and the inhibition activity on the microbial growth was estimated by comparing the total microbial counts with and without the addition of the same additive. Analysis of variance and least significant difference (LSD) test at P<0.05 showed that the lactic acid was the most influential on the microbial growth of starter cultures, and significant differences were also detected between the used concentrations of lactic acid, while no significant effect was observed when 100 ppm of nitrite, 1-3% of salt and 0.1-0.4% for black pepper were used. Consequently, the previously mentioned concentrations could be applied in the manufacturing of fermented meats.


Artificial intelligence review:
Research summary
هدفت الدراسة إلى تقييم تأثير بعض المضافات الغذائية على نمو البادئات الميكروبية المستخدمة في تصنيع اللحوم المتخمرة. تم استخدام ثلاثة أنواع من البادئات التجارية التي تحتوي على مزيج من البكتيريا مثل Staphylococcus carnosus و Lactococcus lactis و Lactobacillus sakei. تم تحضير تراكيز مختلفة من النتريت، الملح، حمض اللبن، والفلفل الأسود، وتم تقييم تأثيرها على النمو الميكروبي من خلال مقارنة التعداد الكلي للبكتيريا بوجود وغياب المضافات. أظهرت النتائج أن حمض اللبن كان الأكثر تأثيراً في تثبيط النمو الميكروبي، بينما لم يكن للنتريت والملح والفلفل الأسود تأثير كبير عند التراكيز المستخدمة. تم تحليل البيانات باستخدام تحليل التباين واختبار أقل فرق معنوي، وأظهرت النتائج أن نوع المادة المضافة كان له تأثير أكبر من تركيزها على التضاد الميكروبي.
Critical review
دراسة نقدية: تعتبر هذه الدراسة مهمة في مجال تصنيع اللحوم المتخمرة، حيث تقدم معلومات قيمة حول تأثير المضافات الغذائية على نمو البادئات الميكروبية. ومع ذلك، يمكن تحسين الدراسة من خلال تضمين مزيد من التفاصيل حول الظروف البيئية مثل درجة الحرارة والرطوبة التي قد تؤثر على النتائج. كما أن الدراسة قد تكون أكثر شمولية إذا تم اختبار تأثير مزيج من المضافات بدلاً من كل مضاف على حدة، مما يعكس الظروف الحقيقية في تصنيع اللحوم. بالإضافة إلى ذلك، يمكن تحسين الدراسة من خلال استخدام تقنيات تحليلية متقدمة لتحديد التغيرات في التركيب الكيميائي للمنتجات المتخمرة.
Questions related to the research
  1. ما هي البادئات المستخدمة في الدراسة؟

    استخدمت الدراسة ثلاثة أنواع من البادئات التجارية التي تحتوي على مزيج من البكتيريا مثل Staphylococcus carnosus و Lactococcus lactis و Lactobacillus sakei.

  2. ما هو المضاف الغذائي الأكثر تأثيراً في تثبيط النمو الميكروبي؟

    حمض اللبن كان الأكثر تأثيراً في تثبيط النمو الميكروبي.

  3. هل كان للنتريت تأثير كبير على النمو الميكروبي؟

    لم يكن للنتريت تأثير كبير على النمو الميكروبي عند التراكيز المستخدمة في الدراسة.

  4. ما هي التوصيات المستقبلية لتحسين الدراسة؟

    توصى الدراسة المستقبلية بتضمين مزيد من التفاصيل حول الظروف البيئية مثل درجة الحرارة والرطوبة، واختبار تأثير مزيج من المضافات بدلاً من كل مضاف على حدة، واستخدام تقنيات تحليلية متقدمة لتحديد التغيرات في التركيب الكيميائي للمنتجات المتخمرة.


References used
Anon. 2010. Starter Cultures for Making Fermented Sausages. Chr. Hansen starter cultures Report. Copenhagen, Denmark
Berkel, B. M. V., B. V. D. Boogaard and C. Heijnen, 2004. Preservation of fish and meat. Digigrafi, Wageningen, Netherlands
Brennan, J. G. 2006. Food Processing Handbook. Wiley-VCH Verlag, Wokingham, UK
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