FOOD SCIENCE ›› 2009, Vol. 30 ›› Issue (10): 69-73.doi: 10.7506/spkx1002-6630-200910011

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Optimization of Extraction Technology of Total Saponins from Arenaria kansuensis Maxim by Mathematical Model

XU Qian-xi1,HUANG Yong2,PENG Guang-hua1,*   

  1. (1. College of Food Science and Technology. Huazhong Agricultural University, Wuhan 430070, China;
    2. Wuhan Standardization Institute, Wuhan 430015, China)
  • Received:2008-08-21 Revised:2008-12-13 Online:2009-05-15 Published:2010-12-29
  • Contact: PENG Guang-hua1,* E-mail:guangh@mail.hzau.edu.cn

Abstract:

Using statistical analysis, four-element quadratic regression orthogonal rotation combination was designed for extraction experiment of total saponins from Arenaria kansuensis Maxim. A mathematical model was established, with extraction time, extract temperature, concentration of ethanol and solid-liquid rate as the adjusting factors and the yield of total saponins from Arenaria kansuensis Maxim (y) as the objective function. After the simulated optimization by computer, the optimum ranges of extraction time, extraction temperature, concentration of ethanol and solid-liquid ratio were determined as 4.78 to 5.22 h, 77.91 to 82.78 ℃, 68.49% to 73.3% and 1:38.42 to 1:42.89, respectively. Furthermore, the interactions among various factors were also investigated. Altogether, the present study provided scientific basis for total saponins extraction from Arenaria kansuensis Maxim.

Key words: Arenaria kansuensis Maxim, total saponins, extraction technology, mathematical model

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