STUDY ON THE ANTIOXIDANTS AND TOTAL PHENOL CONTENT OF OPTIMALLY SELECTED JUJUBE CULTIVARS

Antioxidant capacity and phenolic content are important indicators to evaluate the quality of fruits.
In this paper seven cultivars of fresh use jujube (Ziziphus jujuba Mill.) are evaluated on their antioxidant capacity and phenolic content by the way of ABTS free-radical-scavenging and the Folin-Ciocalteu (FC) method, respectively.
Meanwhile, the effect of different storage time on the antioxidant capacity and phenolic content of Ziziphus jujuba Mill. ‘Dongzao’ was evaluated.
The antioxidant capacity and phenolic content of different cultivars are significant different.
According to antioxidant capacity and phenolic content, Z. jujuba ‘Dongzao’ showed to be the highest quality, while Z. jujuba ‘Jinsixiaozao’ was found poor quality both on antioxidant capacity and phenolic content. Z. jujuba ‘Wuhexiaozao’ had higher antioxidant capacity while lower phenolic content; on the contrary, Z. jujuba ‘Zanhuangdazao’ had lower antioxidant capacity while higher phenolic content.
Antioxidant capacity and phenolic content of Z. jujuba ‘Dongzao’ decreased after a period of storage.
The antioxidant capacity of fresh Z. jujuba ‘Dongzao’ was two times higher than after 3 month storage.

I International Jujube Symposium

C.Q. Liu, Q.L. Wang, X.J. Feng, P. Zhang, G.C. Xi, Y.N. Wang, W.C. Zhen, D. Chen, K.D. Cang, M. Cao

antioxidant, capacity phenolic, jujube genotypes

https://doi.org/10.17660/ActaHortic.2009.840.78