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Analysis of volatile components changes of palm oil in the heat treatmentprocess by HS-SPME-GC-MS
  
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KeyWord:palm oil  heat treatment  volatile component  HS-SPME-GC-MS
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JI Yanyu，ZHAO Hongliang，WEI Jing，et al  
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Abstract:
      The volatile components of palm oil （24℃）were analyzed by headspace solid-phase micro-extraction and gas chromatography-mass spectrometry (HS-SPME-GC-MS) in the heat treatment process of palm oil (180℃) . The results showed that 63 kinds of volatile compounds were identified, including aldehydes, alcohols, acids, ketones, hydrocarbons and heterocyclics. The volatile components of palm oil increased firstly and then decreased with heating time prolonging. The volatile components of palm oil were mainly aldehydes and hydrocarbons, and the content of aldehydes was the highest, reaching 80.413% after heating for 12 h. In addition, the detection of 1-octen-3-ol, caproic acid, 2-pentadecanone and 2-pentylfuran revealed that the linoleic acid in palm oil was oxidized. Its change trend showed that the degree of oxidative deterioration of plam oil deepened and the oil quality gradually deteriorated with heating time prolonging.
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