Abstract
n-Propylamine and n-butylamine showed an inhibitory effect on cellulase A and cellulase B, while ethanediamine displayed a positive effect on both of these cellulases. Relative filter paper activity and relative CMCase activity of cellulase A and cellulase B measured at 50 °C were increased by 16.0 and 25.2 %, and 18.9 and 13.9 %, respectively, by the appearance of ethanediamine at a certain concentration. Also the addition of ethanediamine maintained the thermal stability of cellulase A and B at 65 °C to some extent and showed a stronger stabilizing effect on cellulase A than cellulase B. Third, the addition of ethanediamine within a certain concentration range enhanced the bio-polishing effect of cotton fabric enzymatic treatment at 50 °C to some extent, obtaining a close bio-polishing effect of cotton fabrics treated at 50 °C; the addition of ethanediamine saved some of the dose of cellulase A and B. Last but not least, the appearance of ethanediamine broadened the operating temperature of cellulase A to 65 °C, and it had a less positive effect on cellulase B at 65 °C.
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Authors recognize the financial support from the Fundamental Research Funds for the Central Universities, code: 13D310505. Contract grant sponsor: Innovative Research Team, Ministry of Education, People’s Republic of China.
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Fu, Kl., Lu, Dn. Effect of ethanediamine on bio-polishing of cotton fabrics with cellulase. Cellulose 20, 3093–3100 (2013). https://doi.org/10.1007/s10570-013-0054-9
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DOI: https://doi.org/10.1007/s10570-013-0054-9