Caracterización poscosecha de frutos de tacaco (sechium edule) en Cartago, Costa Rica
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Cerdas Araya, María del Milagro
Castro Chinchilla, Johanny
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Abstract
El objetivo del presente trabajo fue realizar una caracterización poscosecha de frutos de tacaco de diferente edad cronológica. Durante julio y agosto de 2014 y, enero y febrero de 2015 se evaluaron frutos recién cuajados, con y sin espinas, procedentes de Cartago, Costa Rica. A partir de los siete días después del cuaje del fruto en tacacos sin espinas (TSE) y ocho días en tacacos con espinas (TCE), se evaluó el peso, y el largo y ancho del fruto, presencia y endurecimiento de las espinas, y aparición de fibra. El largo y grosor de la semilla, la firmeza, y el color externo de la cáscara, fueron evaluados a partir de los catorce días. En ambos materiales, el peso, el largo y ancho del fruto se estabilizaron a partir del día veintiuno, momento en el cual ocurrió la aparición de fibra y espinas, y se registró un incremento significativo en la firmeza, la cual alcanzó a los treinta días, valores de 80 N a 100 N en tacaco con espinas y hasta 129 N en frutos sin espinas. El color de la cáscara pasó de un verde amarillento en el estado inmaduro a verde grisáceo en el estado sazón a los treinta días, momento cercano a la abscisión del fruto. Antes del día veintiuno TSE o TCE, se pueden utilizar como frutos inmaduros, ya que no hay presencia de fibra; y la cáscara y las espinas aún no se han endurecido.
The aim of this work was to make a postharvest characterization of tacaco fruits in different chronological ages. During July and August of 2014, and January and February of 2015 newly set fruits, with or without thorns, from Cartago, Costa Rica were evaluated. Seven days after setting for the tacaco fruits without thorns (TWOT) and eight days after setting for the tacaco fruits with thorns (TWT), weight, length and width of the fruit, presence and hardening of the thorns, and emergence of fiber were evaluated. The length and thickness of the seed, the firmness, and external color of the peel, were evaluated after day fourteen. In both material, weight, length and width of the fruit stabilized after day twenty-one, moment in which fiber and thorns appeared, and a significant increase in firmness was registered, which by day thirty reached values of 80 N to 100 N in tacaco thorns and up to 129 N in thorn less fruits. The color of the peel went from a yellowish green in the unripen stage to a greyish green in the ripened stage by day thirty, close to the moment of the fruit’s separation. Before day twenty-one TWOT or TWT, can be used as unripen fruit, because there isn’t any presence of fiber; and the peel and thorns have not yet hardened.
The aim of this work was to make a postharvest characterization of tacaco fruits in different chronological ages. During July and August of 2014, and January and February of 2015 newly set fruits, with or without thorns, from Cartago, Costa Rica were evaluated. Seven days after setting for the tacaco fruits without thorns (TWOT) and eight days after setting for the tacaco fruits with thorns (TWT), weight, length and width of the fruit, presence and hardening of the thorns, and emergence of fiber were evaluated. The length and thickness of the seed, the firmness, and external color of the peel, were evaluated after day fourteen. In both material, weight, length and width of the fruit stabilized after day twenty-one, moment in which fiber and thorns appeared, and a significant increase in firmness was registered, which by day thirty reached values of 80 N to 100 N in tacaco thorns and up to 129 N in thorn less fruits. The color of the peel went from a yellowish green in the unripen stage to a greyish green in the ripened stage by day thirty, close to the moment of the fruit’s separation. Before day twenty-one TWOT or TWT, can be used as unripen fruit, because there isn’t any presence of fiber; and the peel and thorns have not yet hardened.
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Fibras en el mesocarpo, Semilla coriácea, Frutos con espinas, Frutos sin espinas
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https://revistas.ucr.ac.cr/index.php/agromeso/article/view/22039
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