Effects of different harvest maturity on the comprehensive quality of Ziz-iphus jujuba Mill.cv.Dongzao under protected cultivation condition
To provide a reference for the period of harvesting fresh edible and processed Dali Ziziphus jujuba Mill.cv.Dongzao fruits from the aspect of maturity,Z.jujuba Mill.cv.Dongzao fruits with four different maturity(white ripe-ning,crisp ripening,semi-red and full red,corresponding to white ripening stage,crisp ripening stage,semi-red stage and full red stage,respectively)were used as the test materials to compare the fruit quality characteristics and investigate the change of the fruit quality under four different maturity levels.The results showed that with the increase of fruit ripeness,the single fruit weight,soluble sugar content,vitamin C content and soluble solids content of Z.jujuba Mill.cv.Dongzao fruits increased,while the fruit hardness,water content,total acid content,total phenols content and total flavonoids con-tent decreased.The antioxidant capacity of Z.jujuba Mill.cv.Dongzao fruits at crisp ripening stage and semi-red stage was strong.The water content of Z.jujuba Mill.cv.Dongzao fruits was in highly significant negative correlation with soluble sugar content and soluble solids content(P<0.01),and the water content of Z.jujuba Mill.cv.Dong-zao fruits was in significant positive correlation with the contents of total acids,total phenolics and total flavonoids(P<0.05).Soluble sugar content in Z.jujuba Mill.cv.Dongzao fruits was in highly significant positive correlation with soluble solids content(P<0.01),and was in signifi-cant negative correlation with total flavonoids content and total phenolics content(P<0.05).In summary,Z.jujuba Mill.cv.Dongzao fruits at crisp ripening stage to semi-red stage are suitable for eating or only suitable for short-distance transpor-tation,the fruits at crisp ripening stage are suitable for long-distance transportation or storage,the fruits at full red stage are suitable to be used as food processing raw materials.
Dali Ziziphus jujuba Mill.cv.Dongzaofacility cultivationmaturityqualitystorage
万方数据
维普
