Growth of lactococcus lactis subsp lactis in milk under control of culture acidity
العناوين الأخرى
نمو Lactococcus lactis subsp lactis في اللبن مع التحكم في نسبة الحموضة في المزرعة
المؤلفون المشاركون
Kamil, Daliyah Jamal
Jumah, Nanis Hasanayn
Uthman, Dina Mustafa
Hasan, Ali Ismail
المصدر
Assuit Journal of Agricultural Sciences
العدد
المجلد 48، العدد 6 (31 ديسمبر/كانون الأول 2017)، ص ص. 32-39، 8ص.
الناشر
تاريخ النشر
2017-12-31
دولة النشر
مصر
عدد الصفحات
8
التخصصات الرئيسية
الملخص EN
The effect of control of culture acidity on growth kinetics of one homofermentative strains of lactic acid bacteria, namely., lactococcus lactis subsp lactis was evaluated.
the bacterial growth was estimated on the base of colony forming units, developed titratable acidity and incubation time .sterilized skim milk was used as a medium with incubation at 34°c.
sampling had been carried out at zero time and each 2 hours intervals.
after each sampling, a calculated volume of a liquid of 0.1 n sodium hydroxide was added to the culture to adjust the acidity of the remaining volume of the cultures to its initial value at zero time.
the obtained results indicated that: 1- when lactococcus lactis subsp lactis grown under control of culture acidity lag phase was not observed.
2- significant effect of acidity control was noticed on the growth rate.
exponential phase of growth was between 2ed and 12th hour of incubation.
however, the same culture being grown with control of culture acidity the exponential phase of growth was at interval of time from zero up to 24th hour of incubation.
3- the maximum cell population in case of the control sample was 124 x105 cfu /ml after 12 hours of incubation.
the corresponding values when growth was under control of culture acidity was by a maximum cell population of 35x106 cfu/ml after 32 hour of incubation.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Kamil, Daliyah Jamal& Jumah, Nanis Hasanayn& Uthman, Dina Mustafa& Hasan, Ali Ismail. 2017. Growth of lactococcus lactis subsp lactis in milk under control of culture acidity. Assuit Journal of Agricultural Sciences،Vol. 48, no. 6, pp.32-39.
https://search.emarefa.net/detail/BIM-878886
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Kamil, Daliyah Jamal…[et al.]. Growth of lactococcus lactis subsp lactis in milk under control of culture acidity. Assuit Journal of Agricultural Sciences Vol. 48, no. 6 (2017), pp.32-39.
https://search.emarefa.net/detail/BIM-878886
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Kamil, Daliyah Jamal& Jumah, Nanis Hasanayn& Uthman, Dina Mustafa& Hasan, Ali Ismail. Growth of lactococcus lactis subsp lactis in milk under control of culture acidity. Assuit Journal of Agricultural Sciences. 2017. Vol. 48, no. 6, pp.32-39.
https://search.emarefa.net/detail/BIM-878886
نوع البيانات
مقالات
لغة النص
الإنجليزية
رقم السجل
BIM-878886
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر