Abstract
Date kernels constitute about 13% of the whole date fruit, and cotain moderate amounts of oils with relatively high caloric values. Agwa soft and Aprimi dry date kernel oils were used in this work. Results showed that Aprimi date kernel oils have high levels of both caproic acid and stearic acid of 23.04 and 18.40% respectively, while Agwa kernel oils have high levels of caprylic acid and capric acid of 22.31 and 12.20%. Moreover Agwa oils achieved higher amounts of unsaponifiable matters, sterols and tocopherols. The addition of soft and dry date kernel oils did not improve the wheat flour strength but raised its resistance to extensibility.
Highlights
About two hundred varieties of date are knowen of whicli only 20 are of commercial value
The purpose of this study was to estimate the biochemical properties of date kernel oils to use it as (c) Consejo Superior de Investigaciones Científicas Licencia Creative Commons 3.0 España http://grasasyaceites.revistas.csic.es
Identification and determination of fatty acid contents in the oils of date kernels were determined by gas liquid chromatography after conversion to their methyl esters according to the method of Burchfield and Starrs (1962)
Summary
About two hundred varieties of date are knowen of whicli only 20 are of commercial value. The annual production of different varieties of dates in Egypt exceeds 126 million tons. Dates contain high level of inverted sugars together with relatively low fat content which are considered a rich source of calories. Palm date kernel oils are similar to coconut oils In terms of low iodine value that makes it good for food application and cooking. Salem and Hegazi (1972) mentioned that the etherextract content of seeds of dry dates was 8.02%. Piskur (1966) stated that the fatty acids composition of lipid extracted from Mbocoya palm kernel included caproic 0.23%, caprylic 6.0%, pelargonio trace, capric 5.64%, lauric 39.6%, myristic 7.75%, palmitic 7.75%, stearic 31.3%, oleic 29.1%, and linoleic 4.8%
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