Abstract
To obtain a good Cherry preservative, the author prepared acetic acid Chitosan and metal ion complexes with solid-liquid reaction. Besides, the Cherry preservative was prepared by modified Chitosan materials. It was obtained that the optimal concentration of chitosen acetate for fresh cherries is 20g/l by studying effect of different concentrations of preservative on the storage of Cherry and its preservation time was 24 days. It also found that it owned better preservation effect with adding metal ion and Zn compound preservative had the best preservation performance among all experimental ion compound preservation. The experiment results showed that the preservative which prepared by Chitosan had excellence properties of extending Cherries storage periods、lowing the loss of Cherry fruit during storage、slowing the forming of Cherry soluble solids and the decreasing of titratable acid and vitamine C, but also reducing Cherry metabolism.
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