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Analysis and Evaluation on Fatty Acid Composition of Hickory Nut Oil

ZHAO Zhi-gang(Historical Culture College,Beihua University,Jilin,Jilin 132013)  
[Objective] The study was to analyze the fatty acid composition of Hickory nut oil,and provide the theoretical basis for its developing and utilization.[Method] With Hickory nut oil,korean pine seed oil,sambucus oil and olive oil as the materials,their fatty acid composition were compared by GC/MS and the characteristics of Hickory nut oil was fonnd.[Result] 5 compounds in Hickory nut oil were identified,and they were linoleic acid,oleic acid,linolenic acid,palmitic acid and stearic acid,and their contents were 63.48%,19.90%,11.96%,3.31% and 1.35% resp.The fatty acid ratio of n-6 to n-3 was 5.31,which was close to that of recommended by China(4-5)∶1.The ratio of saturated fatty acid,monounsaturated fatty acidand polyunsaturated fatty acids in Hickory nut oil was 1∶4.3∶16,the content of polyunsaturated fatty acids was slightly higher,but it mainly contained linoleic acid and a-linoleic acid,which were inevitable fatty acid to human body.[Conclusion] The content of unsaturated fatty acid in Hickory nut oil was high,and the fatty acid ratio of n-6 to n-3 of it was reasonable,so it had high development value.
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