2026-07-11T13:03:16Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/50912021-11-10T09:38:20Zcom_10259_4244com_10259_5086com_10259_2604col_10259_4245

00925njm 22002777a 4500 dc Illera Gigante, Alba Ester author Sanz Díez, Mª Teresa author Beltrán Calvo, Sagrario author Benito Román, Oscar author 2019-07 The extraction of polyphenoloxidase (PPO) from Litopenaeus vannamei was studied at different temperatures, pH and ionic strength conditions. Optimum extracts at pH = 7.2 were treated by hiph pressure carbon dioxide (HPCD) technology at 20 MPa and in a temperature range from 35 to 50 °C. Inactivation kinetics for PPO extracts were determined and fitted to the Weibull model. The effect of HPCD on PPO activity was also evaluated in shrimps in vivo, finding that PPO could be easier inactivated than in the crude PPO extract. Color of Litopenaeus vannamei was visually followed right after HPCD treatment and thermal treatment at the same temperature and during storage at 4 °C during a week, showing good results when shrimps were treated with HPCD in the absence of water. 0023-6438 http://hdl.handle.net/10259/5091 10.1016/j.lwt.2019.03.091 Litopenaeus vannamei HPCD Solid samples PPO inactivation Effect of High Pressure Carbon Dioxide on polyphenoloxidase from Litopenaeus vannamei