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Progress in Essential Oils

By: Brian M. Lawrence
Posted: December 20, 2007, from the January 2008 issue of P&F magazine.

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9 pages available as a PDF download or printed copies mailed to you

Nigella sativa Oil

Although black cumin (Nigella sativa L.) is used across numerous countries as a condiment, small quantities of oil are also produced for commercial sale.

El-Alfy et al.(1975) found that a crystalline substance precipitated when an Egyptian oil of N. sativa was subjected to refrigeration. Using a combination of spectroscopic techniques, the structure of the compound was elucidated and found to be thymohydroquinone.

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