Analytical Science and Technology (분석과학)

The Korean Society of Analytical Sciences (한국분석과학회)
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Liquid chromatographic determination of α-, β-, γ-, and δ-tocopherol in sesame oils of different origin

  • Kim, Shin-Ok (Department of Chemistry, Seoul Women's University) ;
  • Kim, Nam-Sun (Department of Chemistry, Seoul Women's University) ;
  • Noh, Bong-Soo (Department of Food & Microbial Engineering, Seoul Women's University) ;
  • Lee, Dong-Sun (Department of Chemistry, Seoul Women's University)
  • Received : 2002.04.25
  • Published : 2002.06.25
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Abstract

The contents of ${\alpha}$-, ${\beta}$-, ${\gamma}$-, and $\delta$-tocopherols in sesame oils were determined by high performance liquid chromatography with UV detection. ${\alpha}$-Tocopherol contents ranged from 10.28 to 19.79 mg/g oil, ${\beta}$-tocopherol contents from 8.22 to 20.10 mg/g. However, both ${\gamma}$- and $\delta$-tocopherol were less than 1.49 mg/g or not detected. ${\gamma}$-Tocopherol was not detected from both unroasted white and black sesame seed oils. Significantly higher level of tocopherol in sesame oil than other oils is an evidence of the reason why it is highly stable and prevents oxidation. The tocopherol composition for twenty sesame oils was classified by using principal component analysis.

Keywords

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