The constituents and contents of esterifing derivatives of organic and aqueous phases in extracts from Chaenomeles speciosa(Sweet) Nakai fruits were analysed by GC-MS.The results indicated that there were 15 and 17 compounds in organic and aqueous phases,respectively.Besides there were common fatty acids,there were a lof of binary acids and ternary acids.The contents of malic acid and citric acid in aqueous and organic phases reached to 64.007%,70.492% and 30.305%,22.121% respectively.Therefore,malic acid and citric acid are the major constituents of organic acids in C.speciosa fruits.
