Efectos de la aplicación de tecnología emergentes en la vida postcosecha de cereza orgánica (Prunus Avium) Var Regina.
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Date
2023
Authors
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Journal ISSN
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Publisher
Universidad de Concepción
Abstract
En el presente estudio se evaluaron los efectos de la aplicación de distintas
tecnologías emergentes- ultravioleta, ultrasonido, burbujas ultrafinas, shock térmico y ozono – aplicadas en dos dosis (0,5 y 2 minutos) en cerezas
orgánicas, luego de ser almacenadas por 20 y 30 días en condiciones
comerciales, como lo son las bolsas de atmósferas modificas y bajas
temperatura. La metodología propuesta se llevó a cabo por medio de la
evaluación de parámetros fisicoquímicos (masa, color, firmeza, respiración,
pH, acidez titulable total, sólidos solubles totales), y observación de las
anomalías de la cereza “Regina” (Prunus avium L.). El análisis no mostro
diferencias significativas en la mayoría de los parámetros, pero se destacan
los tratamientos de nano burbujas, ultrasonido y ultravioleta durante medio
minuto, ya que mostraron mejores resultados en parámetros como luminosidad, acidez y menor aparición de piel de lagarto. Nano burbujas y ultrasonido durante medio minuto son los tratamientos que se comportaron con mayor semejanza o mejor que el control positivo (fludioxonil), por lo que estas tecnologías pueden ser una opción para extender el tiempo de
almacenamiento y un posible reemplazo al fungicida tradicional.
In the present study, the effects of the application of different emerging technologies - ultraviolet, ultrasound, ultrafine bubbles, thermal shock, and ozone - applied at two doses (0.5 and 2 minutes) on organic cherries were evaluated after being stored for 20 and 30 days under commercial conditions, such as modified atmosphere bags and low temperature. The proposed methodology was carried out through the evaluation of physicochemical parameters (weight, color, firmness, respiration rate, pH, total titratable acidity, total soluble solids), and the observation of anomalies in the "Regina" cherry (Prunus avium L. ). The analysis did not show significant differences in most of the parameters, but the treatments with nano bubbles, ultrasound, and ultraviolet for half a minute stood out, as they showed better results in parameters such as brightness, acidity, and less occurrence of pebbling. Nano bubbles and ultrasound for half a minute were the treatments that behaved most similarly or better than the positive control (fludioxonil), so these technologies may be an option to extend the storage time and a possible replacement for traditional fungicides.
In the present study, the effects of the application of different emerging technologies - ultraviolet, ultrasound, ultrafine bubbles, thermal shock, and ozone - applied at two doses (0.5 and 2 minutes) on organic cherries were evaluated after being stored for 20 and 30 days under commercial conditions, such as modified atmosphere bags and low temperature. The proposed methodology was carried out through the evaluation of physicochemical parameters (weight, color, firmness, respiration rate, pH, total titratable acidity, total soluble solids), and the observation of anomalies in the "Regina" cherry (Prunus avium L. ). The analysis did not show significant differences in most of the parameters, but the treatments with nano bubbles, ultrasound, and ultraviolet for half a minute stood out, as they showed better results in parameters such as brightness, acidity, and less occurrence of pebbling. Nano bubbles and ultrasound for half a minute were the treatments that behaved most similarly or better than the positive control (fludioxonil), so these technologies may be an option to extend the storage time and a possible replacement for traditional fungicides.
Description
Tesis presentada para optar al título de Ingeniero Civil Agrícola
Keywords
Ultrasonido, Ozono, Burbujas