Aplicación y efecto de un recubrimiento comestible sobre la vida útil de la mora de castilla (Rubus glaucus Benth)
DOI:
https://doi.org/10.17533/udea.vitae.v23n3a06Abstract
Antecedentes: en los últimos años ha incrementado el interés por el consumo de frutas en estado fresco debido al potencial nutricional que estas contienen, además, por el alto consumo energético que se generan en la aplicación de una cadena en frío, se ha incursionado en la aplicación de recubrimientos comestibles como una técnica alternativa para la conservación de frutas, Objetivos: por tal razón este trabajo tuvo como objetivo aplicar un recubrimiento a base de hidroxipropil metilcelulosa con la inclusión de cera de abejas en mora de castilla y evaluar su efecto en la conservación de esta fruta, Métodos: se trabajó con un diseño multifactorial categórico y el análisis estadístico utilizado fue el LSD de Fisher con un nivel de confianza del 95%; se determinaron las propiedades fisiológicas tales como la respiración y la pérdida de peso, y propiedades fisicoquímicas tales como el pH, acidez titulable, sólidos solubles y el índice de maduración durante un periodo de 15 días a una temperatura de 4°C, Resultados: se obtuvo diferencias significativas (p<0,05) entre los tratamientos evaluados a partir del día 3 de almacenamiento tanto para los parámetros fisicoquímicos como fisiológicos. La acidez titulable tuvo un decrecimiento marcado en el tratamiento control (T5) con respecto a los tratamientos donde se aplicó los recubrimientos (T1, T2, T3, T4) donde el descenso de la acidez fue menor. Por otro lado, la pérdida de peso, los sólidos solubles totales, el pH, el índice de maduración y el índice de respiración incrementaron a medida que el tiempo de almacenamiento transcurrió, y se obtuvo que las moras tratadas con los recubrimientos tuvieron un incremento menor con respecto a las moras sin recubrimiento, Conclusiones: los recubrimientos comestibles aplicados a la mora de castilla tuvieron un efecto positivo sobre las propiedades evaluadas en la mora de castilla, siendo los mejores tratamientos el T3 y T4, en general, la aplicación de un recubrimiento comestible a base de hidroxipropil metilcelulosa y cera de abejas logró aumentar la vida útil de la mora de castilla.Downloads
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