SHANDONG SCIENCE ›› 2016, Vol. 29 ›› Issue (5): 24-28.doi: 10.3976/j.issn.1002-4026.2016.05.004

• Traditional Chinese medicine and natural active products • Previous Articles     Next Articles

Antioxidant activity of alkaloids in Caulis Mahoniae

ZHU Heng1, WEN Lei 1, GENG Yanling2, WANG Xiao2, JIA Wenting2,WANG Daijie 2*, YAN Yunhong3   

  1. 1. School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China;2. Shandong Provincial Key Laboratory of Traditional Chinese Medicine Quality Control Technology, Shandong Analysis and Test Center, Jinan 250014, China; 3. Jinan Ninth High School of Shandong Province, Jinan 250022, China
  • Received:2016-04-29 Online:2016-10-20 Published:2016-10-20

Abstract:

We determined antioxidant activity of alkaloids in Caulis Mahoniae by DPPH. We isolated berberine, jatrorrhizine, palmatine, columbamine and stepharanine with pHzonerefining CCC. We also evaluated external antioxidant capability of dominant alkaloids in Caulis Mahoniae through DPPH free radical scavenging rate determination of total alkaloids and monomeric alkaloids. Results show that linear positive correlation exists for the concentration and absorbance of DPPH solution from 0 to 25 μg/mL. IC50 of total alkaloids, berberine, jatrorrhizine, palmatine, columbamine and stepharanine are respectively 0.07, 0.32, 0.24, 0.20, 0.18, and 0.59 mg/mL, so alkaloids of Caulis Mahoniae has certain antioxidant capability. It will be enhanced with the increase of alkaloids concentration. Moreover, antioxidant ability of total alkaloids is higher than that of monomeric compounds. Antioxidant activity of Caulis Mahoniae alkaloids may be synergistic effect.

Key words: alkaloids, Caulis Mahoniae, antioxidant activity

CLC Number: 

  • R284.1