Abstract: In this study, sodium CMC was used as coating material to investigate the effects of coating solution on the storage and preservation of Chaenomeles sinensis, including the time-dependent change of mass loss, VC content, organic acid content, total sugar content, flavonoids content and total polyphenols content. In order to obtain the optimal treatment concentration of CMC-Na and extend the shelf-life of Chaenomeles sinensis, to provide references for the industrialization of Chaenomeles sinensis. The results showed that CMC-Na film could effectively reduce the mass loss of Chaenomeles sinensis during storage, inhibit the decrease of organic acid, total sugar, flavonoids, total polyphenols and the degrandation of VC. Among all the treatments, the massfraction of 1.0% in CMC-Na had the best preservation effect, which could effectively prolong the fresh-keeping period of Chaenomeles sinensis.

Key words: Chaenomeles sinensis, carboxymethyl cellulose sodium（CMC）, preservation