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Purification of nervonic acid in Acer truncatum Bunge. seed oil by low temperature crystallization
  
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KeyWord:Acer truncatum Bunge. seed oil  nervonic acid  low temperature crystallization  mixed fatty acids
FundProject:江南大学大学生创新训练计划资助（201910295084Y）；新农科研究与改革实践项目“基于全产业链的食品专业多样化人才培养模式创新实践”“新农科视域下食品专业教育国际化创新模式研究与实践”
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GE Zhiqin Purification of nervonic acid in Acer truncatum Bunge. seed oil by low temperature crystallization 
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Abstract:
      In order to improve the purity and yield of the nervonic acid enriched from Acer truncatum Bunge. seed oil, the Acer truncatum Bunge. seed oil was saponified to prepare mixed fatty acids, and then the mixed fatty acids were dissolved in different solvents and crystallized at low temperature. The conditions of crystallization solvent type, ratio of mixed fatty acids to solvent and crystallization time were optimized. The results showed that when the mixed fatty acids were mixed with ethanol in a mass-volume ratio of 1∶ 3, and crystallized for 4 h at -40 ℃, the content of nervonic acid in the crystal was 13.11%, the yield was 65.48%, and the content of nervonic acid in the final product was more than twice as high as that in Acer truncatum Bunge. seed oil.
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