2026-06-29T21:07:30Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/48452022-05-20T13:22:28Zcom_10259_4244com_10259_5086com_10259_2604col_10259_4245

Illera Gigante, Alba Ester Sanz Díez, Mª Teresa Trigueros Andrés, Ester Beltrán Calvo, Sagrario Melgosa Gómez, Rodrigo 2018-07-12T07:54:02Z 2018-12 2019-12 0260-8774 http://hdl.handle.net/10259/4845 10.1016/j.jfoodeng.2018.06.027 Tomato juice, Lycopersicon esculentum cv. Canario, has been treated by high pressure carbon dioxide (HPCD) as non-thermal preservation treatment. The inactivation kinetics for pectinmethylesterase (PME) and polygalacturonase (PG) were determined at different pressures (8.5–20 MPa) and temperatures (35–55 °C). At the highest operating pressure and temperature essayed in this work, it was found that PME could be almost completely inactivated, whereas PG resulted to be more HPCD resistant at the working conditions. PME enzyme inactivation curves were properly described by a Weibull type model, while the fractional conversion model was the most appropriate for the PG with a sharp initial decrease in activity. On the contrary, high pressure processing (HPP) led to a nearly complete inactivation of PG while PME was very resistant at 600 MPa. It was also found that HPCD treatment led to a smaller particle size distribution of tomato juice. Spanish Government (MINECO) and the European Regional Development Fund (ERDF) for financial support of project CTQ2015-64396-R application/pdf eng Elsevier Journal of Food Engineering. 2018, V. 239, p. 64-71 https://doi.org/10.1016/j.jfoodeng.2018.06.027 info:eu-repo/grantAgreement/MINECO/CTQ2015-64396-R Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess Tomato juice HPCD Enzyme inactivation Properties HPP Ingeniería química Chemical engineering Effect of high pressure carbon dioxide on tomato juice: inactivation kinetics of pectin methylesterase and polygalacturonase and determination of other quality parameters info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion