ISSN:
1573-6776
Keywords:
α-chymotrypsin
;
dynamic membrane
;
enzyme reactor
;
peptide synthesis
Source:
Springer Online Journal Archives 1860-2000
Topics:
Process Engineering, Biotechnology, Nutrition Technology
Notes:
Abstract α-Chymotrypsin was covalently attached to an α-alumina ultrafiltration membrane coated with an inert protein. This derivative was used as catalyst for the continuous kinetically controlled synthesis of kyotorphin in both membrane and packed bed reactors, using aqueous (water/dimethyl sulfoxide, 60:40, v/v) and nearly-dry (hexane/ethanol/water, 57:40:3, by vol.) organic media, respectively. In both media, the synthetic activity and operational stability of the enzyme-membrane derivative was compared with an adsorbed α-chymotrypsin Celite derivative, being 2-times and 4-times respectively, higher than the Celite one. The enzyme-membrane derivative showed half-life times higher than 36 days, with a selectivity near to 100%.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1005690604799
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