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Ruiz, P., (2024). Atmósfera controlada en frutos de palto (Persea americana Mill.) cv. Hass [Universidad Nacional Agraria La Molina]. https://hdl.handle.net/20.500.12996/6487
Ruiz, P., Atmósfera controlada en frutos de palto (Persea americana Mill.) cv. Hass []. PE: Universidad Nacional Agraria La Molina; 2024. https://hdl.handle.net/20.500.12996/6487
@misc{renati/248339,
title = "Atmósfera controlada en frutos de palto (Persea americana Mill.) cv. Hass",
author = "Ruiz Pintado, Paula Sofia",
publisher = "Universidad Nacional Agraria La Molina",
year = "2024"
}
Title: Atmósfera controlada en frutos de palto (Persea americana Mill.) cv. Hass
Authors(s): Ruiz Pintado, Paula Sofia
Advisor(s): Casas Díaz, Andrés Virgilio
Keywords: Atmósfera controlada
OCDE field: https://purl.org/pe-repo/ocde/ford#4.01.05
Issue Date: 2024
Institution: Universidad Nacional Agraria La Molina
Abstract: El Perú es uno de los más grandes exportadores de palta Hass, con países destino como Tailandia, India, China y Japón. Donde el mayor desafío se juega en la cadena poscosecha, ya que en muchos casos la fruta llega en mal estado, afectando directamente la credibilidad del país productor. Por ello, se ha simulado el tránsito de la fruta bajo el sistema de atmósfera controlada (AC) a temperatura y humedad relativa constante. El objetivo del presente estudio fue evaluar el efecto de cuatro diferentes concentraciones de gases O2% y CO2% (3/3, 5/5, 10/10, 17/10) más un tratamiento control en atmósfera convencional (21/0,03) sobre los principales parámetros de calidad poscosecha de la palta. La fruta fue almacenada por 30, 45 y 60 días bajo los diferentes tratamientos. Se analizaron indicadores de calidad como peso, firmeza, color, pardeamientos de piel y de pulpa, así como incidencia de pudriciones poscosecha. Los resultados indican que, durante el almacenamiento refrigerado, la atmósfera 5/5 obtuvo los mejores resultados en cuanto a deshidratación. La firmeza fue conservada por todos los tratamientos de AC estudiados. En el control del moho peduncular, el tratamiento 17/10 presentó la menor severidad promedio. Los desórdenes fisiológicos inducidos por el daño por frío, como son las manchas en la piel y la decoloración difusa de la pulpa, fueron mitigados en gran medida por las atmósferas controladas. En el testigo, el daño por frío incrementó la susceptibilidad al daño por hongos. Asimismo, los tratamientos de AC con mayor concentración de CO2 tuvieron un mayor tiempo promedio de maduración, mayor deshidratación y mayor incidencia de enfermedades poscosecha. El desarrollo del color fue normal para los tratamientos de AC, a diferencia de los testigos.
Peru is one of the largest exporters of Hass avocado in the world, with shipping destinies such as Thailand, India, China and Japan. Where the greatest challenge takes place in the postharvest chain, since in many cases the fruit arrives in poor condition, directly affecting the credibility of the producing country. For this reason, the transit of the fruit has been simulated under the controlled atmosphere (CA) system at constant temperature and relative humidity. The objective of the present study was to evaluate the effect of four different concentrations of O2% and CO2% gases (3/3, 5/5, 10/10, 17/10) plus a control treatment in a conventional atmosphere (21/0,03) on the main postharvest quality parameters of the avocado. The fruit was stored for 30, 45 and 60 days under the different treatments. Quality indicators such as weight, firmness, color, browning of the skin and pulp, as well as the incidence of post-harvest rot, were analyzed. The results indicate that, in terms of dehydration during refrigerated storage, the 5/5 atmosphere obtained the best results. Firmness was preserved by all CA treatments studied. In the control of peduncular mold, the 17/10 treatment presented the lowest average severity. Physiological disorders induced by cold injury, such as skin spots and diffuse pulp discoloration, were largely mitigated by controlled atmospheres. In the control treatment, chilling injury increased susceptibility to fungal damage. Likewise, AC treatments with a higher CO2 concentration had a longer average ripening time, greater dehydration and a higher incidence of postharvest diseases. Color development was normal for the AC treatments, unlike the controls.
Peru is one of the largest exporters of Hass avocado in the world, with shipping destinies such as Thailand, India, China and Japan. Where the greatest challenge takes place in the postharvest chain, since in many cases the fruit arrives in poor condition, directly affecting the credibility of the producing country. For this reason, the transit of the fruit has been simulated under the controlled atmosphere (CA) system at constant temperature and relative humidity. The objective of the present study was to evaluate the effect of four different concentrations of O2% and CO2% gases (3/3, 5/5, 10/10, 17/10) plus a control treatment in a conventional atmosphere (21/0,03) on the main postharvest quality parameters of the avocado. The fruit was stored for 30, 45 and 60 days under the different treatments. Quality indicators such as weight, firmness, color, browning of the skin and pulp, as well as the incidence of post-harvest rot, were analyzed. The results indicate that, in terms of dehydration during refrigerated storage, the 5/5 atmosphere obtained the best results. Firmness was preserved by all CA treatments studied. In the control of peduncular mold, the 17/10 treatment presented the lowest average severity. Physiological disorders induced by cold injury, such as skin spots and diffuse pulp discoloration, were largely mitigated by controlled atmospheres. In the control treatment, chilling injury increased susceptibility to fungal damage. Likewise, AC treatments with a higher CO2 concentration had a longer average ripening time, greater dehydration and a higher incidence of postharvest diseases. Color development was normal for the AC treatments, unlike the controls.
Link to repository: https://hdl.handle.net/20.500.12996/6487
Note: Universidad Nacional Agraria La Molina. Facultad de Agronomía. Departamento Académico de Horticultura
Discipline: Agronomía
Grade or title grantor: Universidad Nacional Agraria La Molina. Facultad de Agronomía
Grade or title: Ingeniero Agrónomo
Juror: Apaza Tapia, Walter Eduardo; Espinoza Nuñez, Erick; Chávez Bocanegra, Daniel Encarnación
Register date: 8-May-2024
This item is licensed under a Creative Commons License