The efficacy of the combined use of chlorine dioxide and passive modified atmosphere packaging on sweet cherry quality
2015
Colgecen, Ibrahim | Aday, Mehmet Seckin
The efficacy of the combined use of passive modified atmosphere and aqueous chlorine dioxide at various concentrations of 4, 8, 12, 16, 20 and 25mg/L on physical and chemical quality attributes of sweet cherry was evaluated during a five weeks storage period at 4°C. The results showed that ClO2 treatments at concentrations of 16 and 20mg/L maintained pH, total soluble solid contents and firmness better than other samples at the end of the storage. Untreated samples and samples treated with 25mg/L ClO2, had higher weight loss and respiration rate than other treated fruit during storage. Steady-state equilibrium was achieved in the passive modified atmosphere packages of ClO2 treated cherries between the second and the fifth weeks of storage. No significant differences were found between untreated and treated samples except for 25mg ClO2 treated fruit regarding electrolyte leakage. The L* values of ClO2 treated samples ascended with increasing concentrations of ClO2 at each sampling day. ClO2 treatments significantly affected the redness (a*) values of fruit during storage. ClO2 treatment at the concentration of 25mg/L had a deleterious effect on cherry color and anthocyanins. The cherries treated with 16 and 20mg/L ClO2 tended to have higher scores than other treated and untreated samples in all sensory attributes. No mold growth was visually observed during the first two weeks of storage in treated cherries except 4 and 8mg/L ClO2 treated samples. In summary, our work has led us to conclude that combined use of passive modified atmosphere and ClO2 treatments at a concentrations of 16 and 20mg/L has potential to maintain the quality of sweet cherry.
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