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Chinese Agricultural Science Bulletin ›› 2023, Vol. 39 ›› Issue (25): 130-138.doi: 10.11924/j.issn.1000-6850.casb2022-0759

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Extraction Process of Iridoid Glycosides Based on Response Surface Methodology

HE Zhipeng1,2(), WANG Shibao3,4(), HU Benxiang1(), ZHANG Hui3,4, CHEN Yuan2, TANG Wenqiang1, HU Yagang1   

  1. 1 Medical College, Shaanxi Institute of International Trade & Commerce, Xi’an 712046
    2 College of Agronomy, Gansu Agricultural University, Lanzhou 730070
    3 College of Pharmacy, Hanzhong Vocational and Technical College, Hanzhong, Shaanxi 723000
    4 Institute of Medicinal (Edible) Botany of Qinba District, Hanzhong Vocational and Technical College, Hanzhong, Shaanxi 723000
  • Received:2022-09-07 Revised:2022-12-25 Online:2023-09-05 Published:2023-08-28

Abstract:

The extraction process of iridoid glycosides from Gentianae macrophyllae radix was optimized by response surface methodology. On the basis of single factor test, according to the design of response surface method, the total content of loganic acid, swertiamarin and gentiopicroside was used as the index to optimize the extraction conditions. The optimum extraction conditions were as follows: 80% methanol was solvent, extraction temperature was 50℃, ultrasonic power was 720 W, liquid-solid ratio was 40 mL: 1 g, extraction time was 30 minutes and extracted 2 times. According to this condition, the actual measured value and predicted value were 15.562% and 15.904%, with the relative deviation of 2.20%, and the results were basically the same. The operation process is relatively simple and the test results are ideal, which provides a reference for the extraction process of iridoid glycosides in Gentianae macrophyllae radix.

Key words: Gentianae macrophyllae radix, iridoid glycosides, response surface methodology, extraction process