Study of the main constituents of some authentic hazelnut oils.
This paper describes the composition of authentic hazelnut oils obtained from nuts collected from five countries that are major suppliers of hazelnut oil. Oils were analyzed using standard methods for fatty acids, fatty acids in the triacylglycerol 2-position, tocopherols and tocotrienols, triacylglycerols, sterols, steradienes, and iodine value. The results were generally in good agreement with those of other publications. Tocotrienols, previously unreported in hazelnut oil, were detected in one sample. There were no major differences in the composition of oils from different countries. Roasting the nuts prior to pressing had little effect on oil composition.
Crews
Colin
C
Central Science Laboratory, Sand Hutton, York YO41 1LZ, United Kingdom. c.crews@csl.gov.uk
Hough
Patrick
P
Godward
John
J
Brereton
Paul
P
Lees
Michelle
M
Guiet
Sebastien
S
Winkelmann
Wilfried
W
D031211:Corylus / Q000737:chemistry*; D005227:Fatty Acids / Q000032:analysis; D007455:Iodine / Q000032:analysis; D010938:Plant Oils / Q000737:chemistry*; D012639:Seeds / Q000737:chemistry*; D013261:Sterols / Q000032:analysis; D024505:Tocopherols / Q000032:analysis; D024508:Tocotrienols / Q000032:analysis; D014280:Triglycerides / Q000032:analysis
D005227:Fatty Acids; D010938:Plant Oils; D013261:Sterols; D024508:Tocotrienols; D014280:Triglycerides; D007455:Iodine; D024505:Tocopherols