The performance of a glass bead shaking technique for the disruption of Escherichia coli cells

Ramakrishnan, Nagasundara Ramanan and Tau, Chuan Ling and Ariff, Arbakariya (2008) The performance of a glass bead shaking technique for the disruption of Escherichia coli cells. Biotechnology and Bioprocess Engineering, 13 (5). pp. 613-623. ISSN 1226-8372

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The efficacy of a simple laboratory method for cell disruption based on the shaking of glass beads on a rotary shaker was assessed in this study, via measurements of the release of total protein and interferon-α2b from E.coli. The optimum conditions for cell disruption were detected after 30 min of shaking in Tris-HCl buffer (pH 8) at 300 rpm with 1.5g of glass beads (diameter: 0.5 mm) per mL of cell suspension volume. Three test runs were conducted under the above conditions and the maximum average protein release values were determined as 3.048, 3.564, and 3.015 mg/mL, respectively. The amount of protein release was comparable to the amount of protein release in ultrasonication and glass bead vortexing procedures. The amount of interferon-α2b release in the ultrasonication, glass bead vortexing, and glass bead shaking trials were 240, 172, and 201 ng/mL, respectively. This method was shown to process between 1 and 10 mL of sample volume in a 50 mL Falcon tube without a great deal of deviation, and was able to handle in excess of 60 samples simultaneously.

Item Type:Article
Keyword:Cell disruption; Downstream processing; E.coli; Glass beads; Shaker; Interferon-a2b.
Subject:Escherichia Coli.
Subject:Proteins - isolation & purification.
Faculty or Institute:Institute of Bioscience
Publisher:The Korean Society for Biotechnology and Bioengineering
DOI Number:DOI/10.1007/s12257-008-0047-y
ID Code:17258
Deposited By: Nida Hidayati Ghazali
Deposited On:18 Jun 2012 03:12
Last Modified:18 Jun 2012 03:12

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