Quick Refolding of High-Concentration Proteins via Microchannel Dialysis
- Aoi Kato,
- Hidenori Ohashi
Aoi Kato
Tokyo University of Agriculture and Technology Faculty of Engineering Graduate School of Engineering
Corresponding Author:katoaoi0116@gmail.com
Author ProfileHidenori Ohashi
Tokyo University of Agriculture and Technology Faculty of Engineering Graduate School of Engineering
Author ProfileAbstract
The industrial production of active proteins from E. coli necessitates
the refolding of high concentrations of protein over a short period of
time. However, it is difficult to simultaneously achieve high
concentration and short residence time. The dialysis method can refold
high concentrations of proteins, but this process takes a long time. The
dilution method can quickly refold proteins, but the resultant proteins
are inevitably diluted. In the present study, by designing microchannels
in dialysis membranes, which can enlarge the surface area for quickly
removing protein denaturant, high concentrations of active carbonic
anhydrase---eight times more concentrated than achieved using dilution
method---were refolded in 20 minutes, which is orders of magnitude
faster than the conventional dialysis method.05 Aug 2020Submitted to Biotechnology and Bioengineering 05 Aug 2020Submission Checks Completed
05 Aug 2020Assigned to Editor
28 Aug 2020Review(s) Completed, Editorial Evaluation Pending
21 Jul 2021Published in Industrial & Engineering Chemistry Research volume 60 issue 28 on pages 10076-10082. 10.1021/acs.iecr.1c00410