Utilize este identificador para referenciar este registo:
acessibilidade
http://hdl.handle.net/20.500.12207/5617
Título: | Enzymatic activity during frozen storage of Atlantic horse mackerel (Trachurus trachurus) pre-treated by high-pressure processing |
Autor: | Fidalgo, Liliana G. Saraiva, J.A. Aubourg, S.P. Vázuez, M. Torres, J.A. |
Palavras-chave: | High-pressure processing Frozen storage Trachurus trachurus Acid phosphatase Cathepsins Lipase |
Data: | 2015 |
Editora: | Springer |
Citação: | Fidalgo, L., Saraiva, J., Aubourg, S., Vázquez, M. & Torres, J. (2015). Enzymatic activity during frozen storage of Atlantic horse mackerel (Trachurus trachurus) pre-treated by high-pressure processing. Food Bioprocess Technology, 8(3), 493-502. https://doi.org/10.1007/s11947-014-1420-9 |
Resumo: | The assessment of enzymatic activity on Atlantic horse mackerel (Trachurus trachurus) during frozen storage was carried out in samples pre-treated by high-pressure processing (HPP) combinations of 150, 300 and 450 MPa with 0-, 2.5- and 5-min holding time (untreated samples were used as controls). The activities of four enzymes (acid phosphatase, cathepsins B and D, and lipase) in fish muscle were quantified during accelerated storage conditions (up to 3 months at −10 °C). The experimental data were fitted to second-order polynomial models to determine the effect of pressure level, holding time and frozen storage time on these enzyme activities and to identify conditions of maximum/minimal enzyme inactivation. Acid phosphatase and cathepsin (B and D) activities were significantly (p<0.05) influenced by HPP, showing behaviours during frozen storage different from control samples. Acid phosphatase and cathepsin B activities decreased (p<0.05) with HPP treatments, being this effect more intense for cathepsin B, particularly at 450 MPa. Regarding cathepsin D, the activity increased (p<0.05) at intermediate pressure (300MPa) and decreased (p<0.05) at higher pressure (450 MPa). During frozen storage, cathepsin D enzymatic activity tended to increase over time indicating activity recovery of these enzymes. Although a predictive model for its activity was not acceptable, the increase in lipase activity during storage was the most pronounced trend observed. |
Arbitragem científica: | yes |
URI: | http://hdl.handle.net/20.500.12207/5617 |
DOI: | https://doi.org/10.1007/s11947-014-1420-9 |
ISSN: | 1935-5149 |
Versão do Editor: | https://www.springer.com/journal/11947/ |
Aparece nas coleções: | D-TCA - Artigos em revistas indexadas à WoS/Scopus |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
---|---|---|---|---|
Enzymatic Activity During Frozen Storage of Atlantic Horse_PDFA.pdf | 1.03 MB | Adobe PDF | Ver/Abrir |
Este registo está protegido por Licença Creative Commons