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Subtilisin embedded in TAC fibre - properties and application

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Trzmiel T., Szczesna-Antczak M., Rzyska M.
Biotechnologia
|
2001
|
issue 4
175-188
EN
The embodiment of subtilisin from Bacillus subtilis IBTC-3 in triacetylocellulose (TAC) fibre was studied. The fibre preparation of proteolytic activity 51.3 AmU/g was obtained with 16.6% of yield. The properties of subtilisin embedded in TAC fibre were investigated. The preparation showed optimal proteolytic activity at pH 9 and temperature 65-70C. It was stable in a wider range of pH and temperature than the native subtilisin. The KM value for haemoglobin was 2.6 ? 10-3 M. The TAC-fibre biocatalyst, in the fixed bed column, was successfully applied for hydrolysis of casein.
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