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Cardanol in germ and seed oils extracted from cashew nuts obtained by the oltremare process

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Journal of the American Oil Chemists’ Society

Abstract

The presence of cardanol in cashew seed and germ oils was detected by using a combination of the thin layer chromatography (TLC) and gas liquid chroma-tography (GLC) techniques with infrared spectro-scopy (IR) and mass spectrometry (MS). The oils were extracted from cashew nuts obtained by the Oltremare process (heating the nuts in cashew nut shell liquid bath at 180 C for 100–120 sec). The cardanol content was about 40 mg/100 ml of germ oil and 20 mg/100 ml of seed oil. The four cardanol components were found in the following percentages: 3-(pentadecyl)-phenol (II), 3.0%; 3-(8-pentadecenyl)-phenol (III), 55.7%;3-(8,11-pentadecadienyl)-phenol (IV), 24.2%; and 3-(8,l l,14-pentadecatrienyl)-phenol (V), 17.1%, respectively. Because a constant distribu-tion of the four cardanol components was found both in the seed and in the germ oils, it was suggested that cardanol is not a natural component of germ and seed oils, but is derived from the cashew nut-shell liquid during the processing of the nuts.

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Authors and Affiliations

  1. Istituto di Industrie Agrarie, Universita’ Degli Studi di Bologna, 40126, Bologna, Italy

    A. Strocchi & G. Lercker

Authors
  1. A. Strocchi
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  2. G. Lercker
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Strocchi, A., Lercker, G. Cardanol in germ and seed oils extracted from cashew nuts obtained by the oltremare process. J Am Oil Chem Soc 56, 616–619 (1979). https://doi.org/10.1007/BF02679334

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  • DOI: https://doi.org/10.1007/BF02679334

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