Use of Novel Drying Technologies to Improve the Retention of Infused Olive Leaf Polyphenols

Abstract

Use of novel drying technologies to improve the retention of infused olive leaf 10Ferrocarril s/n, Edificio Torregaitán, Elche, 03202, Spain.

Ultrasound-assisted drying of orange peel in atmospheric freeze-dryer and convective dryer operated at moderate temperature

“…These results showed that the increase in drying kinetics produced by ultrasound was greater at the lowest drying temperature tested. This coincides with what has been reported by other authors [22,23] and can be explained, as pointed before, by the fact that the mechanical energy supplied by US is constant in every experiment. So, at low temperatures, the proportion of ultrasonic energy in relation to the total energy available is greater than at higher temperatures [22].…”

PEF as pretreatment to ultrasound-assisted convective drying: Influence on quality parameters of orange peel

“…HAD experiments were performed in an ultrasonically assisted convective dryer (Garcia-Perez, Ortuño, Puig, Carcel, & Perez-Munuera, (2012); Santacatalina et al, 2015). In this system, the drying chamber is constituted by an airborne ultrasonic device (Figure 1), specifically, an aluminum-vibrating cylinder (height 310 mm, internal diameter 100 mm, thickness 10 mm) attached to a piezoelectric transducer (21.9 kHz) which is able to generate an internal high intensity ultrasonic field.…”

Contribución al estudio de la aplicación de ultrasonidos de alta intensidad en procesos de secado a baja temperatura.

“…These effects that the drying conditions had on D ed were consistent with those reported by Santacatalina et al (2015) in the case of the atmospheric freeze drying of apple at different air velocities and temperatures.…”

“…Then, in the experiments at -10ºC, the proposed diffusion model just becomes an empirical model. A more rigorous approach for modeling LTD at -10ºC was addressed by Santacatalina et al (2015). However, the proposed diffusion model in this work allowed for the comparison and quantification of the effect of the studied variables on the drying kinetics, which was, as mentioned above, the main goal of the modeling.…”