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CONTACT INFORMATION:
Phone: (612) 624-6758
FAX: (612) 625-5780

Director
Marc von Keitz

Research Associate
Fred Schendel




 
Biotechnology Resource Center
BRC Facilities


The Biotechnology Resource Center is a 4,000 square foot laboratory/pilot plant facility with state-of-the-art equipment for research and development in fermentation, animal cell culture technology, molecular biology, protein expression, and separation of a wide range of biological molecules.


Fermentation
Animal Cell Culture
Down Stream Processing
Molecular Biology
Analytical Support


FERMENTATION

A wide variety of bench-scale to pilot scale fermenters is available:

  • 6x 6.6L New Brunswick Scientific Bioflo 3000 fermenters with NBS Biocommand 32 control software
  • 2x 10L B.Braun Biostat with MDS control units
  • 3x 20L Biolafitte fermenters with Rhapsody digital controller systems
  • 1x 75L New Brunswick Scientific fermenter with ML4100 controller and NBS
    Biocommand 32 software
  • 1x 300L DCI/ABEC fermenter with Rosemont RS3 control system

Each of the bioreactors is equipped with the standard instrumentation for control of oxygen, pH, antifoam, agitation speed, airflow, vessel pressure, and feed/harvest rates. A central Thermo Onix Prima 32-valve off-gas mass spectrometer provides continuous off-gas monitoring capabilities for all 13 bioreactors. In addition, on-line measurement of dissolved CO2 and four methanol analyzer/controllers are available for methylotrophic fermentation. The bioreactors can operate inbatch, fed batch, and continuous mode and accommodate rapid temperature shifts for temperature induction.

A variety of supporting equipment is available including shakers, incubators, laminar flow hoods, chemical hoods, microscopes, freeze dryer, drying ovens, water baths, mix tanks, various pumps, a machine shop, and an electronics shop.

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DOWNSTREAM PROCESSING

A wide range of equipment is available for harvest and purification of cells, proteins, and other biological molecules and cell fragments.

Centrifugation:

  • 2x Sorval RC-5B
  • 1x Sorval RC-2B
  • Sharples Super Speed continuous flow (0.3 liter bowl, 62,000 x g)
  • Sharples AS-15 continuous flow (5.5 liter bowl, 13,000 x g)

The continuous flow centrifuges are house in a 90 square foot recovery room with HEPA filtered exhaust for containment of microorganism-laden aerosols generated during centrifugation operations.

Cell Disruption:

  • French press
  • Continuous flow Gaullin homogenizer
  • Ultrasound Sonicator

Micro-/Ultra-filtration:

  • Modified Dorr-Oliver Ultrafiltration unit set up for plate&frame, hollow fiber, and spiral-wound modules
  • Membranex spinning membrane microfiltration unit

Chromatography:

  • 2x Biorad bench-scale chromatography units
  • BioCAD 60 Perfusion Chromatography System for rapid process develpment
  • Pharmacia Biopilot Chromatography system
  • Biosepra/NCSRT process-scale chromatography unit (max. flow rate 6L/min)
  • Wide variety of chromatography columns (up to 12L bedvolume)

For protein purification, an 80 square foot cold room with 8 foot ceiling to
accommodate tall column operations is available.

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MOLECULAR BIOLOGY

The molecular biology suite is equipped with various gel electrophoresis
systems including a Pharmacia Phast system, thermocyclers, and various scale
high-speed and ultra centrifuges. In-house DNA sequencing capabilities are
available through the Advanced Genetic Analysis Center.

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ANALYTICAL SUPPORT

For off-line analysis of fermentation and cell culture samples is conducted using an HP 6890 gas chromatograph, a Waters HPLC, Varian 940 gas chromatograph, a Beckman DU65 uv/vis spectrophotometer and a Bio-tek EL 312e microtiter plate reader. State-of-the-art NMR and protein mass spectrometry capabilities are
available through the University¹s Mass Spectrometry for the Life Sciences Consortium.


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The University of Minnesota is an equal opportunity educator and employer. Last modified on March 25, 2007