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Article

Trans-2-Hexenal-Based Antifungal Packaging to Extend the Shelf Life of Strawberries

1
Packaging Group, Instituto de Agroquímica y Tecnología de Alimentos, CSIC, Av. Agustín Escardino 7, 46980 Paterna, Spain
2
Grupo de Tecnología en Envases y Embalajes, ITENE (Unidad Asociada al CSIC), c/Albert Einstein 1, Parc Tecnologic de Valencia, 46980 Paterna, Spain
*
Author to whom correspondence should be addressed.
Academic Editors: Fulgencio Marin-Iniesta, Ginés Benito Martínez-Hernández and Amaury Taboada Rodriguez
Foods 2021, 10(9), 2166; https://doi.org/10.3390/foods10092166
Received: 20 July 2021 / Revised: 31 August 2021 / Accepted: 7 September 2021 / Published: 13 September 2021
(This article belongs to the Special Issue Plant Bioactive Compounds in Foods and Food Packages)
Strawberries are valuable because of their nutritional value, but they are also highly perishable fruits. Fungal decay is the overriding factor that alters the overall quality of fresh strawberries. Because no hygienic treatments to reduce the initial microbial load are feasible, molds develop during postharvest when using conventional packaging. In this study, an antifungal packaging system for strawberries was developed to improve safety and quality. Trans-2-hexenal (HXAL), a natural compound in strawberries, was incorporated into the modified atmosphere packaging (MAP) systems. Zero, 100, and 250 µL of HXAL were included in cellulosic pads and were covered with a polyamide coating to control its release. The pads were placed on the bottom of plastic trays; an amount of250 g of strawberries was added, flow packed in micro-perforated PP bags, and stored at 4 °C for 14 days. Fungal infection was monitored during the storage period, and the optical and textural properties of the strawberries were measured at days 0 and 14. Analysis of the package headspace was conducted to check for the HXAL concentration. HXAL was partially retained in the fruits and was converted into hexyl acetate and 2-hexen-1-ol acetate, but this was only measurably present in the headspace of the active systems. Mold growth was fully inhibited in active packaging although the strawberries were softer and darker than those in the control packages. The active package was not as efficient if the fruits were stored under thermal-abuse conditions (15 and 22 °C). View Full-Text
Keywords: trans-2-hexenal; 2-nonanone; active packaging; Botrytis cinerea; active cellulose pads trans-2-hexenal; 2-nonanone; active packaging; Botrytis cinerea; active cellulose pads
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MDPI and ACS Style

Heras-Mozos, R.; García-Moreno, A.; Monedero-Prieto, M.; Tone, A.M.; Higueras, L.; Hernández-Muñoz, P.; Gavara, R. Trans-2-Hexenal-Based Antifungal Packaging to Extend the Shelf Life of Strawberries. Foods 2021, 10, 2166. https://doi.org/10.3390/foods10092166

AMA Style

Heras-Mozos R, García-Moreno A, Monedero-Prieto M, Tone AM, Higueras L, Hernández-Muñoz P, Gavara R. Trans-2-Hexenal-Based Antifungal Packaging to Extend the Shelf Life of Strawberries. Foods. 2021; 10(9):2166. https://doi.org/10.3390/foods10092166

Chicago/Turabian Style

Heras-Mozos, Raquel, Adrián García-Moreno, María Monedero-Prieto, Ana M. Tone, Laura Higueras, Pilar Hernández-Muñoz, and Rafael Gavara. 2021. "Trans-2-Hexenal-Based Antifungal Packaging to Extend the Shelf Life of Strawberries" Foods 10, no. 9: 2166. https://doi.org/10.3390/foods10092166

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