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Precipitation with poly acrylic acid as a trypsin bioseparation strategy

Paper ID Volume ID Publish Year Pages File Format Full-Text
35344 45087 2009 4 PDF Available
Title
Precipitation with poly acrylic acid as a trypsin bioseparation strategy
Abstract

Precipitation of enzymes with reversible soluble–insoluble polymers is a simple approach which can be easily scaled up. This work reports investigations aiming at verifying the existence of specific interactions and complex formation between porcine trypsin and poly acrylic acids using spectroscopy techniques. The trypsin–polymer complex was insoluble at pH lower than 5, with a stoichiometric ratio polymer mol per protein mol of 1:148. It took only a minute for the insoluble complex to form and it was redissolved modifying the pH of the medium. The enzymatic activity of trypsin was maintained even in the presence of the polymer and after precipitation poly acrylic acid presence protect the enzyme from itself degradation. The conditions of complex formation were studied using pure proteins that could be applied on porcine pancreas homogenates as an isolation strategy of trypsin.

Keywords
Trypsin; Poly acrylic acid; Polyelectrolyte; Polymer; Precipitation; Bioseparation
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Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 44, Issue 9, September 2009, Pages 1046–1049
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us