Journal of the American Oil Chemists’ Society

, Volume 61, Issue 3, pp 540–543

Evening primrose (Oenothera spp.) oil and seed

  • B. J. F. Hudson

DOI: 10.1007/BF02677026

Cite this article as:
Hudson, B.J.F. J Am Oil Chem Soc (1984) 61: 540. doi:10.1007/BF02677026


Evening primrose (Oenothera spp.) seed contains ca. 15% protein, 24% oil, and 43% cellulose plus lignin. The protein is unusually rich in sulphur-containing amino acids and in tryptophan. The component fatty acids of the oil are 65–80% linoleic and 7–14% ofγ-linolenic, but noα-linolenic acid.

The 1.5–2% unsaponifiable matter has a composition very similar to that of cottonseed oil. The sterol fraction contains 90%β-sitosterol and the 4-methyl sterol fraction contains 48% citrostadienol;γ-tocopherol dominates its class, with someα- but no other tocopherols.

Copyright information

© the American Oil Chemists’ Society 1984

Authors and Affiliations

  • B. J. F. Hudson
    • 1
  1. 1.Department of Food ScienceUniversity of ReadingReadingEngland

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