Resumen

ORTEGA-ORTIZ, Hortensia; SORIANO-MELGAR, Lluvia de Abril Alexandra  y  TREVINO-LOPEZ, Eduardo Alfonso. Postharvest quality of melon (Cucumis melo L.) by effect of iodinated chitosan complexes. Ecosistemas y recur. agropecuarios [online]. 2023, vol.10, n.spe3, e3654.  Epub 26-Ago-2024. ISSN 2007-901X.  https://doi.org/10.19136/era.a10niii.3654.

Iodine is an essential element for humans as its deficiency can affect human health. Iodized chitosan complexes in fruits can be a good alternative to improve biofortification, in addition to increasing yield and crop quality. Therefore, objective of this work was to evaluate the postharvest effect on the main nutraceutical compounds (including antioxidants) of melon fruits due to the application of iodine biofortifying compounds in preharvest stages. The treatments applied were based on potassium iodide (KI) and potassium iodate (KIO3) salts, chitosan-KI complex (CS-KI), chitosan-KIO3 complex (CS-KIO3), chitosan as control and water as absolute control on melon fruits. Each treatment consisted of foliar sprayed doses of 5 and 25 mg kg-1. The results show that, the application of CS-I complexes maintains the quality and decreases the appearance of dehydration during 15 days postharvest, the carotenoid content in treated fruits (mean 446.67 mg 100 mL-1) is higher compared to control fruits (average 230.65 mg 100 mL-1) at 10 days, the content of vitamin C in treated fruits (mean 46.56 g 100 mL-1) is higher compared to control fruits (mean 35.93 g 100 mL-1) at 10 days and the total antioxidant capacity is maintained (mean 44.47 µg EAG mL-1) for 15 days of storage, indicating the conservation of nutraceutical content of melon fruits for up to 15 days at 25 °C.

Palabras llave : Biofortification; complexes; iodine; nutraceuticals; storage.

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