Postharvest behavior of tamarillo (solanum betaceum cav.) treated with cacl2 under different storage temperatures

The tamarillo, or tree tomato, produced in Colombia, has great potential for commercialization in the global market for tropical exotic fruits, but suffers quality losses during the postharvest phase due to the use of inappropriate technologies. In order to extend the postharvest life of these fruit...

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Autores:
Pinzón-Gómez, Lida Paola
Deaquiz, Yuli Alexandra
Álvarez-Herrera, Javier Gionnavi
Tipo de recurso:
Article of journal
Fecha de publicación:
2014
Institución:
Universidad Nacional de Colombia
Repositorio:
Universidad Nacional de Colombia
Idioma:
spa
OAI Identifier:
oai:repositorio.unal.edu.co:unal/50181
Acceso en línea:
https://repositorio.unal.edu.co/handle/unal/50181
http://bdigital.unal.edu.co/44158/
Palabra clave:
Exotic fruits
firmness
weight loss
respiration
refrigeration.
Postharvest
horticulture
Rights
openAccess
License
Atribución-NoComercial 4.0 Internacional
Description
Summary:The tamarillo, or tree tomato, produced in Colombia, has great potential for commercialization in the global market for tropical exotic fruits, but suffers quality losses during the postharvest phase due to the use of inappropriate technologies. In order to extend the postharvest life of these fruits, the effect of calcium chloride (CaCl2) and different storage temperatures was evaluated. A completely randomized design was used, where the block criterion was the temperature with three treatments (control and calcium chloride doses of 570 and 862 mM) and three blocks (6, 9°C and ambient temperature [20°C]), for a total of nine experimental treatments monitored every five days for 20 days. The CaCl2 treatments delayed softening over time, as compared to the control but did not affect the other quality attributes. Generally, the fruits stored at low temperatures lost less fresh weight and had a lower respiration rate as compared with the fruits stored at the ambient temperature. During the postharvest, it was observed that the fruits had a pH between 3.84 and 4.36, total acidity between 0.57 and 1.6% and 9.79°Brix on average. The physicochemical properties of the tamarillo were more affected by the ambient temperature than by the application of CaCl2. The temperature of 9°C is recommended for maintaining the quality of this fruit for 20 days.