Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.14/6565
Título: Analysis of the inactivation kinetics of freeze-dried á-amylase from bacillus amyloliquefaciens at different moisture contents
Autor: Saraiva, J.
Oliveira, J. C.
Hendrickx, M.
Oliveira, F. A. R.
Tobback, P.
Data: 1996
Editora: Elsevier
Citação: SARAIVA, J. [et al.] - Analysis of the inactivation kinetics of freeze-dried á-amylase from bacillus amyloliquefaciens at different moisture contents. LWT- Food Science and Technology. ISSN 0023-6438. 29:3 (1996) 260-266
Resumo: The thermal inactivation kinetics of freeze-dried á-amylase in a solid matrix was studied at water contents ranging from 1.5 to 23.9 g water per 100 g dry solid. These conditions were obtained by equilibration in dry environments, with water activities ranging between 0.11 and 0.88. Isothermal inactivation experiments in the range 135 to 150 °C were performed. Results were analysed with both the Bigelow and Arrhenius models. It was concluded that there was no statistical significance to suggest that the water content influenced the kinetic parameters. An activation energy of 128 kJ/mol and pre-exponential factor with a logarithm of 33.9 described all the results well.
Peer review: yes
URI: http://hdl.handle.net/10400.14/6565
Versão do Editor: http://www.ingentaconnect.com/content/ap/fs/1996/00000029/00000003/art00038
Aparece nas colecções:ESB - Artigos em revistas internacionais com Arbitragem / Papers in international journals with Peer-review

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