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Main chemical components and antioxidant ability of Buriti oil
  
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KeyWord:Buriti oil  chemical component  antioxidant ability
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MA Congcong，XU Jiqu， ZHAO Siqi，etc  
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Abstract:
      The fatty acid composition and contents of vitamin E, β-carotenes, squalene and β-sitosterol in Buriti oil were determined, and the DPPP free radical scavenging ability of Buriti oil was tested to evaluate its antioxidant ability. The results showed that the Buriti oil mainly contained palmitic acid, stearic acid, oleic acid, linoleic acid, linolenic acid and eicosenoic acid,and it was dominated by unsaturated fatty acid and the content of oleic acid was over 75%. The main vitamin E in Buriti oil was α-vitamin E with average content of 0.85 g/kg, and the average contents of β-carotene, squalene and β-sitosterol were 1.37，0.18 g/kg and 0.29 g/kg respectively. Buriti oil had excellent antioxidant ability, and its semi-inhibitory concentration (IC50) value for scavenging DPPH free radical was 11.30 mg/mL.
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