Science and Technology of Food Industry

ISSN 1002-0306
CN   11-1759/TS
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ZHANG Wei-min, ZHAI Yuan-chun, YANG Hong-jun, ZHANG Run-guang, HAO Jian, HAN Jun-qi, ZHANG You-lin. Silver nitrate-silica gel column chromatography purification linolenic acid in the walnut oil[J]. Science and Technology of Food Industry, 2015, (10): 229-232. DOI: 10.13386/j.issn1002-0306.2015.10.039
Citation: ZHANG Wei-min, ZHAI Yuan-chun, YANG Hong-jun, ZHANG Run-guang, HAO Jian, HAN Jun-qi, ZHANG You-lin. Silver nitrate-silica gel column chromatography purification linolenic acid in the walnut oil[J]. Science and Technology of Food Industry, 2015, (10): 229-232. DOI: 10.13386/j.issn1002-0306.2015.10.039
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Silver nitrate-silica gel column chromatography purification linolenic acid in the walnut oil

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    • Abstract
  • The fatty acids of walnut oil were separated primarily by urea adduction method, then the linolenic acid of walnut oil was further purified by silver nitrate-silica gel column chromatography. In the silver silica gel column formed by 20 g silica gel and 2g Ag NO3, join in the ratio was 1∶15 with adsorbent after urea inclusion enrichment of fatty acids, 100 m L 8% acetone-petroleum, underd the elution flow rate of 0.6m L/min, the content of linoleic acid in walnut oil increased from the original 8.7% to 95.9%. This suggests that the silver nitrate-silica gel column chromatography is a kind of high efficient separation method of linolenic acid.
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