INQUINOA 21218
INSTITUTO DE QUIMICA DEL NOROESTE
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Thermal degradation kinetics of b-crytoxanthin and b-carotene in a simulated cashew apple juice system
Autor/es:
L. Q. ZEPKA; A. Z. MERCADANTE; C. D. BORSARELLI
Lugar:
Belo Horizonte, Brasil
Reunión:
Congreso; XXI CONGRESSO BRASILEIRO DE CIÊNCIA E TECNOLOGIA DE ALIMENTOS; 2008
Institución organizadora:
Sociedad Brasilera de Ciencia y Tecnología de Alimentos
Resumen:
The kinetics of the thermal degradation of the major carotenoids (b-cryptoxanthin and b-carotene) in cashew apple juice system was studied at 90 ºC by high-performance liquid chromatography with diode array and mass spectrometry detection (HPLC-PDA-MS).
The decays of b-cryptoxanthin and b-carotene in the cashew apple juice system were well adjusted with a biexponential fitting equation corresponding to a kinetic mechanism with coupled reversible and irreversible first-order steps. The HPLC-PDA analysis of the degradation products showed that the isomerization of trans to cis-configuration was the main reaction induced by heat in these simulated juice systems.
