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Quality change of grapeseed oil before and after refining
  
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KeyWord:grapeseed oil  refining  fatty acid  mineral  vitamin  sterol
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WEI Ruixian  
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Abstract:
      The quality change of grapeseed oil before and after refining was studied. The changes of compositions and contents of fatty acid，sterol，vitamin and mineral in grapeseed oil before and after refining were detected by GC-MS，HPLC and the national standard method，respectively. The results showed that both the sensory quality and physicochemical quality of refined grapeseed oil improved greatly，and the refining had little effect on the contents of fatty acids and mineral in grapeseed oil，while the contents of sterol，vitamin E and vitamin K in grapeseed oil decreased significantly after refining.
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