Chemical Research in Chinese Universities ›› 2013, Vol. 29 ›› Issue (6): 1072-1077.doi: 10.1007/s40242-013-3169-5

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Ultrasound-assisted Extraction of Kamebakaurin from Rabdosia excisa by Response Surface Methodology

TANG Jian1, MA Rui-li1, LI Qian-qian1, JIANG Chun-bao1, CHEN Rui1, OUYANG Zhen1, CHEN Hai-sheng2, WANG Min3   

  1. 1. School of Pharmacy, Jiangsu University, Zhenjiang 212013, P. R. China;
    2. School of Pharmacy, Second Ministry Medical University, Shanghai 200433, P. R. China;
    3. College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, P. R. China
  • Received:2013-04-12 Revised:2013-09-06 Online:2013-12-01 Published:2013-10-11
  • Contact: CHEN Hai-sheng E-mail:hschen2012@163.com
  • Supported by:

    Supported by the National Natural Science Foundation of China(Nos.81072985, 21102057, 21272269), the Postdoctoral Foundation of Jiangsu Province, China(No.1201027B) and the China Postdoctoral Science Foundation(No.2012M521023).

Abstract:

For the efficient extraction of kamebakaurin(KA), the ultrasound-assisted extraction(UAE) of KA from Rabdosia excisa(R. excisa) via response surface methodology(RSM) was investigated with high-performance liquid chromatography(HPLC). Effects of the experimental parameters such as extraction solvent, ratio of liquid to plant material, extraction time and extraction temperature on the extracting efficiency of KA from R. excisa were evaluated, and the purity of KA in residual was calculated. The optimized conditions were 65.5%(volume fraction) acetone, 35℃, time of 24.6 min with ultrasound of 80 W/L, 40 kHz, ratio of liquid to plant material at 30:1(mL/g). The maximum yield of KA is 0.708 mg/kg, with mean purity of 6.09%, indicating that ultrasound-assisted extraction is a feasible and useful method for extracting KA from R. excisa.

Key words: Ultrasound-assisted extraction, Kamebakaurin, Rabdosia excisa, Response surface methodology