Postharvest application of acibenzolar-S-methyl and plant extracts affect physicochemical properties of blueberry (Vaccinium corymbosum L.) fruits
2022
Marilcen Jaime-Guerrero | Javier Giovanni Álvarez-Herrera | Hernán David Ruiz-Berrío
The demand for fruits with high anthocyanin content, such as blueberries, has increased in recent years due to their health benefits. However, few studies are known on the postharvest behavior of blueberry fruits subjected to the application of plant extracts and acibenzolar-S-methyl (ASM). The objective of this research was to investigate the effect of the application of ASM and vegetable extracts (mint and coriander) on the organoleptic characteristics of blueberry fruits stored at 16°C during postharvest through a completely randomized design with five treatments. The contents of total anthocyanins in fruits (TA) did not differ between treatments, with values that ranged between 74.1 mg and 83.9 mg 100 g-1 of fresh weight. The TA tended to increase during storage and then to decrease during senescence. The firmness of blueberry fruits increased during storage, but hardness did not increase, since the fruits are softer and show wrinkling over time, indicating that the epidermis of the fruits has great elasticity. The fruits with the application of vegetable extracts showed the highest total soluble solids and total titratable acidity. The values of red/green and yellow/blue ratio increased, so the blueberry fruits slightly lost their blue hue during postharvest. Fruits with ASM application reached a postharvest life of 15 d after harvest (dah) while the other treatments only maintained quality for 13 dah.
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