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Acta Agronómica
versión impresa ISSN 0120-2812
Resumen
VACA PORTILLO, Angie Cecilia y OSORIO MORA, Oswaldo. Chitosan-based coating to optimize the quality of cape gooseberry (Physalis peruviana L.). Acta Agron. [online]. 2023, vol.72, n.2, pp.132-138. Epub 07-Mayo-2024. ISSN 0120-2812. https://doi.org/10.15446/acag.v72n2.106047.
The cape gooseberry (Physalis peruviana L.) is recognized in national and international markets as an exotic fruit with high nutritional value. However, its short shelf life and post-harvest losses affect its marketing. The objective of this research was to develop the formulation of an edible coating to extend the useful life of the fruits, based on a Box-Benhken response surface design, using different concentrations of chitosan (1, 1.5 and 2 %) (w/w), beeswax, and glycerol (1, 2 and 3 %) (w/w). Weight loss, firmness, color index, and respiration rate were the response variables. The generated quadratic polynomial models were suitable to explain the effects of chitosan, beeswax, and glycerol concentrations. Experimental validation confirmed the suitability of the cape gooseberry coating formulation using response surface methodology with 1.33 % chitosan, 2.14 % beeswax, and 1.29 % glycerol. The coating maintained the physiological and physical properties of cape gooseberry for up to 15 days at room temperature.
Palabras clave : beeswax; biopolymer; gas permeability; glycerol; shelf life.