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高等学校化学研究 ›› 2017, Vol. 33 ›› Issue (5): 702-708.doi: 10.1007/s40242-017-7076-z

• Articles • 上一篇    下一篇

Phytochemical Analysis of Ziziphus jujuba Leaves in Six Cultivars at the Whole Life Stage by High Performance Liquid Chromatography

CUI Xueqin1, MA Zhongxiao1, BAI Lu1, WU Yong1, GUO Sen1, LIU Qingchao1, ZHANG Li1, HO Chi-Tang2, BAI Naisheng1   

  1. 1. College of Chemical Engineering, Department of Pharmaceutical Engineering, Northwest University, Xi'an 710069, P. R. China;
    2. Department of Food Science, Rutgers University, New Brunswick, New Jersey 08901, USA
  • 收稿日期:2017-03-01 修回日期:2017-05-04 出版日期:2017-10-01 发布日期:2017-07-03
  • 通讯作者: BAI Naisheng,E-mail:nsbai@nwu.edu.cn E-mail:nsbai@nwu.edu.cn

Phytochemical Analysis of Ziziphus jujuba Leaves in Six Cultivars at the Whole Life Stage by High Performance Liquid Chromatography

CUI Xueqin1, MA Zhongxiao1, BAI Lu1, WU Yong1, GUO Sen1, LIU Qingchao1, ZHANG Li1, HO Chi-Tang2, BAI Naisheng1   

  1. 1. College of Chemical Engineering, Department of Pharmaceutical Engineering, Northwest University, Xi'an 710069, P. R. China;
    2. Department of Food Science, Rutgers University, New Brunswick, New Jersey 08901, USA
  • Received:2017-03-01 Revised:2017-05-04 Online:2017-10-01 Published:2017-07-03
  • Contact: BAI Naisheng,E-mail:nsbai@nwu.edu.cn E-mail:nsbai@nwu.edu.cn

摘要:

Leaves of Ziziphus jujuba Mill.(Z. jujuba) were used as a folk medicine to treat children suffering from typhoid fever, furuncle and ecthyma in China. The present study was to establish a high performance liquid chromatography-diode array detector(HPLC-DAD) method for quality control of Z. jujuba leaves. The validated method was applied to the simultaneous characterization and quantification of sixteen main constituents in thirty samples, which comprised the whole life stage of Z. jujuba leaves from six cultivars in Yulin, Shannxi Province, China. HPLC fingerprint file of Z. jujuba leaves was set up and the results indicate that the major constituents of Z. jujuba leaves are(-)-catechin(1), quercetin-3-O-robinobioside(3), rutin(4) and quercetin-3-O-α-L-arabinosyl-(1→2)-α-L-rhamnoside(6) with the total contents of the nine flavonoids in respective batch ranging from 18.52 mg/g to 39.51 mg/g. In addition,the contents of compounds depend on both the season and the cultivar. During ripening of Z. jujuba leaves, flavonoids of all the cultivars present a similar trend:initially decrease from 25th, Jun. to 5th, Aug., 2015, and then increase for a period of time, finally slightly fluctuate on 5th Oct. The highest contents of total flavonoids were registered on 25th Jun., 2015. Different cultivars have 50%-90% variation on the content for the three classes of compounds. Taken together, the results demonstrate that Z. jujuba leaves have great potential to be a new health-promoting resource based on flavonoids and the best sampling time of them is in June.

关键词: Flavonoid, High performance liquid chromatography-diode array detector(HPLC-DAD), Quality control, Ziziphus jujuba leaf

Abstract:

Leaves of Ziziphus jujuba Mill.(Z. jujuba) were used as a folk medicine to treat children suffering from typhoid fever, furuncle and ecthyma in China. The present study was to establish a high performance liquid chromatography-diode array detector(HPLC-DAD) method for quality control of Z. jujuba leaves. The validated method was applied to the simultaneous characterization and quantification of sixteen main constituents in thirty samples, which comprised the whole life stage of Z. jujuba leaves from six cultivars in Yulin, Shannxi Province, China. HPLC fingerprint file of Z. jujuba leaves was set up and the results indicate that the major constituents of Z. jujuba leaves are(-)-catechin(1), quercetin-3-O-robinobioside(3), rutin(4) and quercetin-3-O-α-L-arabinosyl-(1→2)-α-L-rhamnoside(6) with the total contents of the nine flavonoids in respective batch ranging from 18.52 mg/g to 39.51 mg/g. In addition,the contents of compounds depend on both the season and the cultivar. During ripening of Z. jujuba leaves, flavonoids of all the cultivars present a similar trend:initially decrease from 25th, Jun. to 5th, Aug., 2015, and then increase for a period of time, finally slightly fluctuate on 5th Oct. The highest contents of total flavonoids were registered on 25th Jun., 2015. Different cultivars have 50%-90% variation on the content for the three classes of compounds. Taken together, the results demonstrate that Z. jujuba leaves have great potential to be a new health-promoting resource based on flavonoids and the best sampling time of them is in June.

Key words: Flavonoid, High performance liquid chromatography-diode array detector(HPLC-DAD), Quality control, Ziziphus jujuba leaf