کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10385124 | 882513 | 2013 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Scale-down studies for assessing the impact of different stress parameters on growth and product quality during animal cell culture
ترجمه فارسی عنوان
مطالعات مقیاس پذیر برای ارزیابی اثر پارامترهای تنش مختلف بر رشد و کیفیت محصول در طی سلول های حیوانی حیوانات
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
چکیده انگلیسی
Two series of reproducible fed-batch bench scale cultures have been undertaken, one series simulating the impact of spatial variations in pH and nutrients as found at commercial scale on performance, the other, the impact of fluid dynamic stresses associated with agitation. The first was unsuccessful because, somewhat surprisingly, the use of a peristaltic pump to circulate cells and medium through different spatial environments always led to a similar reduction in culture time and resulting product titre compared to uncirculated controls. This fall was sufficient to essentially mask other effects. In the second, even at maximum specific energy dissipation rates up to â¼160 times > with laminar extensional flow and â¼25 times > with turbulent flow compared to typical commercial conditions, no significant effects were observed on cell growth and viability. Most importantly, in all of the cases studied, product quality was unaffected compared to controls. In addition, it is suggested that because of the possibility of cell line specific behaviour and the relationship between damage to entities and the Kolmogorov scale of turbulence, sensitivity to fluid dynamic stresses is best studied in turbulent bench scale bioreactors.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Research and Design - Volume 91, Issue 11, November 2013, Pages 2265-2274
Journal: Chemical Engineering Research and Design - Volume 91, Issue 11, November 2013, Pages 2265-2274
نویسندگان
Alvin W. Nienow, William H. Scott, Christopher J. Hewitt, Colin R. Thomas, Gareth Lewis, Ashraf Amanullah, Robert Kiss, Steven J. Meier,