Study of the main constituents of some authentic walnut oils

被引:109
作者
Crews, C [1 ]
Hough, P
Godward, J
Brereton, P
Lees, M
Guiet, S
Winkelmann, W
机构
[1] Cent Sci Lab, York YO41 1LZ, N Yorkshire, England
[2] Eurofins Sci, F-44323 Nantes, France
[3] Eurofins, D-21107 Hamburg, Germany
关键词
walnut oil; Juglans regia; fatty acids; triacylglycerol; 2-position; tocopherols; tocotrienols; triacylglycerols; sterols; steradienes; iodine value;
D O I
10.1021/jf0478354
中图分类号
S [农业科学];
学科分类号
09 ;
摘要
This paper describes the composition of walnut oils obtained from nuts collected from seven countries that are major suppliers of walnut oil. Oils were extracted from the nuts using small-scale industry pressing equipment and analyzed using standard methods for fatty acids, fatty acids in the triacylglycerol 2-position, tocopherols and tocotrienols, triacylglycerols, sterols, steradienes, and iodine value. Values for the composition of the sterols, triacylglycerols, fatty acids, iodine value, and tocopherol composition were generally in good agreement with the results of previous similar surveys. Tocotrienols were not detected in any sample. Steradienes (stigmastadiene, campestadiene, stigmastatriene, and campestatriene) were not detected in any oil.
引用
收藏
页码:4853 / 4860
页数:8
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