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Bulletin of Botanical Research ›› 2020, Vol. 40 ›› Issue (6): 943-950.doi: 10.7525/j.issn.1673-5102.2020.06.017

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Preparation and Bioavailability of Coenzyme Q10 Xylan Nanometer Suspension Agent

Xiao-Xue ZHANG, Xiu-Hua ZHAO(), Yan-Jie LIU, Ling-Ling WANG, Qian ZHANG   

  1. College of Chemical Engineering and Resource Utilization,Northeast Forestry University,Northeast Forestry University,Key Laboratory of Forest Plant Ecology of Ministry of Education,Northeast Forestry University,Harbin 150040
  • Received:2020-06-01 Online:2020-11-20 Published:2020-11-04
  • Contact: Xiu-Hua ZHAO E-mail:xiuhuazhao@nefu.edu.cn
  • About author:ZHANG Xiao-Xue(1996—),female,master,her research direction is pharmaceutical chemistry.
  • Supported by:
    Heilongjiang Outstanding Youth Fund(JC2018005)


A novel copolymer-supported coenzyme Q10 formed a nanometer suspension agent and increased the water solubility of CoQ10 and improved its oral bioavailability. The quercetin-Xylan(qt-xylan) copolymer coupling was used as the basis for synthesis. The single factor experiment design was adopted, and the particle size was used as the inspection condition of the single factor experiment. The factors affecting the particle size included high pressure homogenization pressure, high pressure homogenization times, copolymer concentration, mass ratio between copolymer and CoQ10, and a series of in vitro experiments were carried out. When the homogenization pressure was 60 MPa, the number of homogenization was 7, the copolymer concentration was 1 mg·mL-1, and the mass ratio of copolymer to CoQ10 was 1∶1, it was the best preparation process for the nanometer suspension agent, and the particle size was 166.7 nm. Under the optimum technological conditions in vitro dissolution experiment,thedissolution rate of CoQ10 nanometer suspended agent coated in artificial gastric juice(SGF) and artificial intestinal juice(SIF) was 1.89 and 1.48 times that of CoQ10 active drug, respectively. The bioavailability in vivo experiments, rat were loaded on gastric CoQ10 and nanoparticle suspension agent respectively. Then the blood drug concentration, different time points in drug absorption and metabolism of rats were detected respectively. The load of CoQ10 nanometer suspending agent in rats blood drug concentration was significantly higher than that of CoQ10 technical, and the bioavailability of CoQ10 reversed-phased was improved 2.64 times.

Key words: coenzyme Q10, xylan, nanometer suspension agent, bioavailability

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