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›› 2006, Vol. 26 ›› Issue (3): 55-58.

• 研究报告 • Previous Articles     Next Articles

Studies on Extraction of Antioxidant from Lycium and Its Antioxidant Activities

JIN Li-e1,2, XIE Xian-mei2, CHANG Li-ping1   

  1. 1. Key Laboratory for Coal Science and Technology of Shanxi Province and Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, China;2. Institute of Chemical Engineering and Technology, Taiyuan University of Technology, Taiyuan 030024, China
  • Received:2005-02-25 Revised:1900-01-01 Online:2006-09-30 Published:2006-09-30

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Abstract: The extractions of antioxidant from lycium with methods of ultrasonic wave and Soxhlet distill were compared and antioxidant activities of lycium were determined by idoimetry. The results showed that lycium contained a definite amount of anti-oxidatant whose activities are lower than those of butylated hydroxy toluene(BHT) and VC but higher than those of VE and citric acid. Maximum amount of antioxidant can be extracted using 60% ethanol solution as solvent. Ultrasonic method has shorter operating time than that of Soxhlet. The experiment for synergistic effect showed that VC and VE could intensify the antioxidant activities of ethanol extractives, and VC exhibited stronger synergistic effect than that of VE.Simultaneous use of VC and extractives from lycium, may be used to substitute the antioxidant BHT synthesized by chemical method.

Key words: ultrasonic wave extraction, Lycium chinense Mill., antioxidants, Soxhlet distill, synergistic effect

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