Exogenous Postharvest Application of Calcium Chloride and Salicylic Acid to Maintain the Quality of Broccoli Florets

Abstract

The importance of broccoli (Brassica oleracea var. italica) consumption has increased in recent years due to its significant amount of anticarcinogenic and antioxidant compounds, as well as its many vitamins. However, broccoli florets are a highly perishable product which rapidly senesce and turn yellow after harvest, resulting in losses in nutritional and bioactive compounds. Thus, in this study, we evaluated the effect of postharvest exogenous of salicylic acid (SA) and calcium chloride (CaCl2) and their combination on the quality of broccoli florets stored at 5 °C for 28 days to minimize the rapid senescence of broccoli florets. Samples treated with 2 mM SA alone or in combination with 2% CaCl2 showed lower weight loss and lower losses of chlorophyll content, vitamin C, phenolic compounds, carotenoids, flavonoids, and glucosinolates compared with the control samples. Additionally, antioxidant activity was maintained by either SA or SA + CaCl2 treatments while peroxidase activity was decreased. For higher quality and lower losses in antioxidant compounds of broccoli florets during refrigerated storage at 5 °C, SA + CaCl2 treatment could be helpful for up to 21 days.

Effect of 100% Oxygen-Modified Atmosphere Packaging on Maintaining the Quality of Fresh-Cut Broccoli during Refrigerated Storage

“…Fresh-cut broccoli is highly nutritious, serving as an excellent source of vitamins, phenolic compounds, and glucosinolates, which have antioxidant, anticancer, and metabolic balance properties [ 2 ]. However, fresh-cut broccoli is prone to severe quality deterioration, such as that caused by chlorophyll degradation [ 3 ]; production of off-odors [ 4 ]; and loss of nutrients and antioxidants [ 5 ], which limit its market circulation and sales. Therefore, effective and safe technologies, such as voltage electrostatic fields [ 6 ], UV-C [ 7 ], ultrasonication [ 8 ], and selenium-chitosan [ 9 ], need to be developed in the fresh-cut broccoli industry.…”

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“…Após a colheita, o fator que implica na degradação da qualidade dos frutos e sua comercialização é a senescência, que por sua vez é uma continuação das características influenciadas por elementos endógenos e exógenos, obtido pela combinação de inúmeras sinalizações e metabolismos fisiológicos no ciclo dos vegetais (ZHANG et al, 2020;EL-BELTAGI, 2022).…”

Tecnologia e Inovação na Agricultura: aplicação, produtividade e sustentabilidade em pesquisa

“…Após a colheita, o fator que implica na degradação da qualidade dos frutos e sua comercialização é a senescência, que por sua vez é uma continuação das características influenciadas por elementos endógenos e exógenos, obtido pela combinação de inúmeras sinalizações e metabolismos fisiológicos no ciclo dos vegetais EL-BELTAGI, 2022).…”