VIEIRA, M.M.C.Silva, C. L. M.Teixeira, A.A.2011-10-152011-10-151998VIEIRA, Margarida C.; TEIXEIRA, A. A.; SILVA, Cristina L. M. - Kinetic parameters estimation using the Paired Equivalent Isothermal Exposures (PEIE) Method under non-isothermal heating conditions. In: CHEMPOR 98: International Chemical Engineering Conference, 7th, Lisboa, Portugal, 24-26 Stembro, 1998 - Proceedings of CHEMPOR'98 7th International Chemical Engineering Conference. [S.l. : s.n. , 1998]. 6 p.http://hdl.handle.net/10400.14/6273With the purpose of testing the recently developed Paired Equivalent Isothermal Exposures (PETE) method, to determine reaction kinetic parameters under nonisothermal conditions, continuous pasteurizations were carried out with a nectar of a tropical fruit [25% of Cupuacu (Theobroma grandiflorum) pulp and 15% of sugar] in order to estimate the ascorbic acid thermal degradation kinetic parameters. The experimental ascorbic acid thermal degradation activation energy (96±13kJ/mol) estimated by the PETE, compared well with the previously determined value (74±5kJ/mol) for the same product under isothermal conditions. The PETE method is a reliable, easy and faster method to estimate first order reactions activation energy.engjournal article