EN PRENSA Inactivation of mango pectinmethylesterase by ohmic heating EN PRENSA

E. Morales Sanchez, A. Diaz-Cruz, C. Regalado-Gonzalez, G. Velazquez de la Cruz, E. Gonzalez-Jasso, M. Gaytan-Martinez

Resumen


The work herein is about the thermic inactivation of pectin methylesterase (PME) partially purified mango when applying ohmic heating. The variables of the study were the initial electrical conductivity (0.29 to 0.48 S M-1), the applied electric field (17, 20 and 23 V/cm) and treatment temperature (30 to 72° C). The electrical conductivity was measured in relation to the temperature of Ataulfo mango pulp had 3 ripening levels. It was found that for each ripening level a different electrical conductivity value was obtained, hence, we proceeded to study the effect of the initial electrical conductivity in the inactivation of the PME when ohmic heating is used. It was found that the inactivation of the PME has a direct dependency with the initial electrical conductivity. When the initial electrical conductivity is higher, the inactivation of the PME is also higher at a constant electric field value. On the other hand, it was found that the inactivation of the PME depends on the value of the applied electric field. With a higher applied electric field, the inactivation of the PME is higher. The D values were obtained from the kinetic inactivation of PME when the ohmic heating was applied. It is concluded that the inactivation of mango’s PME by ohmic heating depends on the applied electric field, as it has been widely reported, but it also depends on the initial conductivity.


Palabras clave


Mango, PectinMetilEsterasa, inactivación térmica, calentamiento óhmico.

Texto completo:

PDF


DOI: https://doi.org/10.15741/revbio.06.01.37

Enlaces refback

  • No hay ningún enlace refback.


Revista Bio Ciencias, Año 10, vol. 6,  Enero 2019. Sistema de Publicación Continua editada por la Universidad Autónoma de Nayarit. Ciudad de la Cultura “Amado Nervo”,  Col. Centro,  C.P.: 63000, Tepic, Nayarit, México. Teléfono: (01) 311 211 8800, ext. 8922. E-mail: revistabiociencias@gmail.com, revistabiociencias@yahoo.com.mx, http://revistabiociencias.uan.mx. Editor responsable: Dr. Manuel Iván Girón Pérez. No. de Reserva de derechos al uso exclusivo 04-2010-101509412600-203, ISSN 2007-3380, ambos otorgados por el Instituto Nacional de Derechos de Autor. Responsable de la última actualización de este número Lic. Brenda Isela Romero Mosqueda y Lic. Elvira Orlanda Yañez Armenta. Secretaria de Investigación y Posgrado, edificio Centro Multidisciplinario de Investigación Científica (CEMIC) 03 de la Universidad Autónoma de Nayarit. La opinión expresada en los artículos firmados es responsabilidad del autor. Se autoriza la reproducción total o parcial de los contenidos e imágenes, siempre y cuando se cite la fuente y no sea con fines de lucro.

Licencia Creative Commons
Revista Bio Ciencias por Universidad Autónoma de Nayarit se encuentra bajo una licencia de Creative Commons Reconocimiento-NoComercial-SinObraDerivada 4.0 Internacional

Fecha de última actualización 12 de febrero de 2018

 

licencia de Creative Commons Reconocimiento-NoComercial-SinObraDerivada 4.0 Internacional