Discrimination of origin of sesame oils using fatty acid and lignan profiles in combination with canonical discriminant analysis

Hyeonjin Jeon, In Hwan Kim, Chan Lee, Hee Don Choi, Byung Hee Kim, Casimir C. Akoh

    Research output: Contribution to journalArticlepeer-review

    19 Citations (Scopus)

    Abstract

    The aims of this study were to investigate total fatty acid composition and lignan contents of Korean, Chinese and Indian roasted sesame oils and to differentiate the geographic origins of the oils using analytical data in combination with canonical discriminant analysis. The analytical data were obtained from 84 oil samples that were prepared from 51 Korean, 19 Chinese, and 14 Indian white sesame seeds harvested during 2010 and 2011 and distributed in Korea during the same period. Six variables selected for the discriminant analysis were the contents of three fatty acids (linoleic, oleic, and palmitic) and three lignans (sesamin, sesamolin, and sesamol). A good discrimination between sesame oils from Korea, China, and India was achieved by applying two canonical discriminant functions, with 97.6 % of the samples correctly classified into the geographic origin. When the origins of five commercial oil samples (one was prepared from Korean sesame seeds and the other four were made from imported sesame seeds) were predicted using discriminant functions, the Korean sesame oil was accurately distinguished from the others.

    Original languageEnglish
    Pages (from-to)337-347
    Number of pages11
    JournalJAOCS, Journal of the American Oil Chemists' Society
    Volume90
    Issue number3
    DOIs
    Publication statusPublished - 2013 Mar

    Bibliographical note

    Funding Information:
    Acknowledgments This study was supported by a research grant from the Korea Food Research Institute.

    Keywords

    • Canonical discriminant analysis
    • Geographical origin
    • Linoleic acid
    • Oleic acid
    • Palmitic acid
    • Roasted sesame oil
    • Sesamin
    • Sesamol
    • Sesamolin

    ASJC Scopus subject areas

    • General Chemical Engineering
    • Organic Chemistry

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