Volumetric procedure to assess infiltration kinetics and porosity of fruits by applying a vacuum pulse

Influence of impregnation solution viscosity and osmolarity on solute uptake during vacuum impregnation of apple cubes (var. Granny Smith)

“…Fruit weight gain following vacuum impregnation has been reported to depend on the fruit's real porosity and mechanical properties, as well as the vacuum intensity, and application time, all of which were fixed parameters in the present study (Del Valle et al, 1998). In addition impregnation solution physico-chemical properties have been shown to effect weight (Fito et al, 1996).…”

Application of vacuum and exogenous ethylene on Ataulfo mango ripening

“…Then, RR decreased faster in VP1500 mangoes. Previous research which report the application of vacuum apples, mango, and papaya (Barat et al, 2001;Fito & Pastor, 1993;Mújica et al, 2003) suggest that a deformation-relaxation phenomenon could develop under vacuum, and internal pressure buildup may happed due to gas expansion inside fruit tissue (Del Valle, Aránguiz, & Díaz, 1998;Fito, 1994). Vacuum favored gas transfer inside the fruit in a proportional rate with the concentration of ethylene of the atmosphere and may account for the increased RR in VP1500 fruit.…”

EVALUACIÓN DE DIFERENTES CONDICIONES DE PROCESO EN LA FORTIFICACIÓN DE MANGO (Tommy Atkins) CON CALCIO MEDIANTE IMPREGNACIÓN A VACÍO

“…La porosidad efectiva (εe) es expresada a priori como el porcentaje de volumen de muestra inicialmente ocupado por el gas pero se define más precisamente como la fracción de volumen de muestra disponible para un mecanismo HDM, este parámetro se calcula por la pendiente de la función lineal dada por la relación de X vs 1-1 / r (1,15).…”

“…Para determinar la porosidad real del mango (ε) fue utilizada la relación entre densidad real de la fruta (p r ) y densidad aparente (p a ) (15,16).…”