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Bulletin of Botanical Research ›› 2022, Vol. 42 ›› Issue (2): 259-267.doi: 10.7525/j.issn.1673-5102.2022.02.011

• Phytochemistry • Previous Articles     Next Articles

Optimization on Extraction of Total Phenols by Response Surface from Saxifraga stolonifera and Its Correlation in Inhibiting the Activity of PLA2 in Deinagkistrodon acutus Venom

Tongtong Sun1, Zhongjuan Wang1, Xiujuan Zhang1, Shihan Yang1, Xiaoqiang Chen1,2, Ying Zhang1()   

  1. 1.College of Chemistry,Chemical Engineering and Resource Utilization,Northeast Forestry University,Harbin 150040
    2.College of Resources and Environment,Tibet Agriculture& Animal Husbandry University,Nyingchi Tibet 860000
  • Received:2021-04-28 Online:2022-03-20 Published:2022-02-22
  • Contact: Ying Zhang E-mail:yingzhang@nefu.edu.cn
  • About author:Sun Tongtong(1996—),female,master,mainly engaged in utilization of medicinal plant resources.
  • Supported by:
    Natural Science Foundation of Heilongjiang Province(LH2020C036);The Forestry Science Discipline Innovation Team Construction Project of Tibet Agriculture & Animal Husbandry University(ZangCaiYuZhi 2020-001)

Abstract:

To reveal the relationship between total phenols(TP) of Saxifraga stolonifera and inhibition of the activity of phospholipase A2(PIR) in Deinagkistrodon acutus venom, we used the single factor and Box-Behnken methods to optimize the extraction conditions of TP of Saxifraga stolonifera and PIR. The effect of various experimental factors on the yield of TP and PIR in the extraction of S. stolonifera by ultrasonic assisted extraction were investigated respectively, and the correlation between the content of TP and PIR were analyzed. The results showed that when the particle size was 60 mesh, the material to liquid ratio was 1∶50, the ultrasonic power was 250 W, and the ultrasonic time was 1.8 h, the content of TP in the aqueous extract of S. stolonifera and its inhibitory rate(PIR) of the PLA2 activity in D. acutus venom could reach the optimal ultrasonic-assisted extraction process conditions. The content of TP was (86.90±0.46) mg·g-1, and the PIR was(40.91±0.21)%. The results of correlation analysis showed that the content of TP and the PIR were extremely significant correlation(P<0.01), indicating that the TP might be the material basis of S. stolonifera to inhibit the PLA2 activity in D. acutus venom .

Key words: Saxifraga stolonifera, total phenols, PLA2 activity, Deinagkistrodon acutus venom, response surface optimization

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