نتایج جستجو برای: bioreactor scale

تعداد نتایج: 582284  

Biological hydrogen production by anaerobic bacterium, Rhodospirillum rubrum was studied in batch and continuous bioreactors using synthesis gas (CO) as substrate. The systems were operated at ambient temperature and pressure. Correlations available in the literature were used to estimate the gas-liquid mass transfer coefficients (KLa) in batch reactor. Based on experimental results for the con...

2013
Won-Kyung Hong Anna Yu Baek-Rock Oh Jang Min Park Chul Ho Kim Jung-Hoon Sohn Akihiko Kondo Jeong-Woo Seo

In this study, large-scale production of microalgal lipid containing high levels of docosahexaenoic acid (DHA) by fermentation of Aurantiochytrium sp. KRS101 was performed. The microalgal strain yielded productivity of docosahexaenoic acid (DHA) productivity of 1.08 and 1.6 g/L/d by fermentation at 300-L and 5000-L scale stirrer-type bioreactor. The productivity was significantly enhanced upto ...

Journal: :Biotechnology and bioengineering 2010
Ralf Hortsch Ansgar Stratmann Dirk Weuster-Botz

A novel milliliter-scale stirred tank bioreactor was developed for the cultivation of mycelium forming microorganisms on a 10 milliliter-scale. A newly designed one-sided paddle impeller is driven magnetically and rotates freely on an axis in an unbaffled reaction vessel made of polystyrene. A rotating lamella is formed which spreads out along the reactor wall. Thus an enhanced surface-to-volum...

Journal: :European cells & materials 2010
Lothar Seefried Sigrid Mueller-Deubert Thomas Schwarz Thomas Lind Birgit Mentrup Melanie Kober Denitsa Docheva Astrid Liedert Moustapha Kassem Anita Ignatius Matthias Schieker Lutz Claes Winfried Wilke Franz Jakob Regina Ebert

Mechanical forces are translated into biochemical signals and contribute to cell differentiation and phenotype maintenance. Mesenchymal stem cells and their tissue-specific offspring, as osteoblasts and chondrocytes, cells of cardiovascular tissues and lung cells are sensitive to mechanical loading but molecules and mechanisms involved have to be unraveled. It is well established that cellular ...

Journal: :Vaccine 2014
Geisa A L Gonçalves Kristala L J Prather Gabriel A Monteiro Duarte M F Prazeres

Plasmid-based vaccines and therapeutics have been making their way into the clinic in the last years. The existence of cost-effective manufacturing processes capable of delivering high amounts of high-quality plasmid DNA (pDNA) is essential to generate enough material for trials and support future commercialization. However, the development of pDNA manufacturing processes is often hampered by d...

Journal: :Lab on a chip 2006
Harry L T Lee Paolo Boccazzi Rajeev J Ram Anthony J Sinskey

We have developed an integrated array of microbioreactors, with 100 microL working volume, comprising a peristaltic oxygenating mixer and microfluidic injectors. These integrated devices were fabricated in a single chip and can provide a high oxygen transfer rate (k(L)a approximately 0.1 s(-1)) without introducing bubbles, and closed loop control over dissolved oxygen and pH (+/-0.1). The syste...

2017
Laura E. Christianson Matthew J. Helmers Alok Bhandari

Denitrification bioreactors for nitrate removal in agricultural drainage have recently gained attention for their low cost and effectiveness. While research continues to investigate the optimal sizing of these systems, little work has been done on the optimal design geometry (Length to width ratio and cross sectional shape). To address this lack, pilot-scale (1/10th scale) work performed in Iow...

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