Palmitoleic acid

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Palmitoleic acid
Palmitoleic acid.svg
IUPAC name
(9Z)-Hexadec-9-enoic acid
Other names
Palmitoleic acid
cis-Palmitoleic acid
9-cis-Hexadecenoic acid
C16:1 (Lipid numbers)
3D model (JSmol)
ECHA InfoCard 100.006.151
Molar mass 254.41 g·mol−1
Density 0.894 g/cm3
Melting point −0.1 °C (31.8 °F; 273.0 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Palmitoleic acid, or (9Z)-hexadec-9-enoic acid, is an omega-7 monounsaturated fatty acid with the formula CH3(CH2)5CH=CH(CH2)7COOH that is a common constituent of the glycerides of human adipose tissue. It is present in all tissues but, in general, found in higher concentrations in the liver. It is biosynthesized from palmitic acid by the action of the enzyme delta-9 desaturase.

Dietary sources[edit]

Palmitoleic acid can be abbreviated as 16:1∆9. Dietary sources of palmitoleic acid include breast milk,[1] a variety of animal oils, vegetable oils, and marine oils. Macadamia oil (Macadamia integrifolia) and sea buckthorn oil (Hippophae rhamnoides) are botanical sources with high concentrations, containing 17% and 19-29% of palmitoleic acid, respectively.[2][3]


  1. ^ Ogunleye A, Fakoya AT, Niizeki S, Tojo H, Sasajima I, Kobayashi M, Tateishi S, Yamaguchi K (1991). "Fatty acid composition of breast milk from Nigerian and Japanese women". J Nutr Sci Vitaminol (Tokyo). 37 (4): 435–42. PMID 1765848. doi:10.3177/jnsv.37.435. 
  2. ^ "Nuts, macadamia nuts, raw". 
  3. ^ Li, Thomas S. C.; Thomas H. J. Beveridge (2003). Sea Buckthorn (Hippophae rhamnoides L.) : Production and Utilization. Ottawa, Ontario: NRC Research Press. pp. 54–55. ISBN 0-660-19007-9.