FOOD SCIENCE ›› 2007, Vol. 28 ›› Issue (10): 38-41.

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Study on Extraction of Radix Paeoniae Rubra by Supercritical Carbon Dioxide and Composition and Antioxidant Activity of Extracts

 SHANG  Tong-Ming, XIE  Tian-Zhu, ZHONG  Hui, 吕Jin-Shun   

  1. 1.Jiangsu Province Key Laboratory of Precious Metal Chemistry and Technology, Changzhou 213001, China; 2.School of Chemistry and Chemical Engineering, Jiangsu Teacher’s University of Technology, Changzhou 213001, China; 3.School of Life Science and Chemistry, Tianshui Normal University, Tianshui 741200, China; 4.Department of Chemistry, Huaiyin Teachers College, Huaian 223300, China
  • Online:2007-10-15 Published:2011-11-22

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Abstract: Volatile components in wild Paeconia latiflora were extracted by the technique of supercritical CO2 extraction, chemical compositions of the extracts were analyzed by means of GC-MS and their scanvenging functions were studied by ortho-triphenol superoxide radical formation method. Results showed that the extracts obtained by supercritical CO2e xtraction with 70% of ethanol as an entrainer contain mainly benzoic acid, phenol, salicylalcohol with antibiotic activity, 2-hydroxybenzaldehyde, 2-methoxy-4-vinylphenol, phenol and 2-methyl-5-butylphenol which is very similar to BTH structurally. The study on the superoxide radical scanvenging showed that the IC50 is as high as 1.013 g/L. The wild Paeconia latiflora can be useda s natural excellenta ntibiotica nda ntioxidem aterial.

Key words: supercritical carbon dioxide, extraction, Radix Paeoniae Rubra oil, anti-oxidation activity