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2018 | 18 | 2 | 52-61
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Investigating the Proximate, Ultimate and Chemical Composition of Four Cultivars of Date Seed, Phoenix dactylifera L.

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Proximate, Ultimate and chemical composition of four varieties of dates namely Digila, Krikri, Sukur and Trigal were determined in the pulp and the seed kernel of dika nut (Irvingia gabonensis) on dry weight basis. Proximate analysis determined were moisture, volatile matter, Fixed Carbon and ash respectively with the pulp of Digila having the highest fixed carbon of 72.73%. The krikri date pulp contained the highest moisture of 79.22%. Sukur pulp has the highest volatile matter of 59.20%. Trigal seed contained 88.05% moisture making it the highest moisture content kernel among the four cultivars. Ultimate Analysis showed that Digila and Trigal pulp contained same amount of 94.10% total carbon. The pulp of Krikri contained the highest amount of hydrogen of 3.55% while the pulp of Sukur has 1.44% Nitrogen. The seed contained 9.82% Oxygen making it the highest. Sulpur. Digila, Sukur, Trigal and Krikri has hydrogen, nitrogen, oxygen, sulphur, sodium, potassium, calcium, magnesium, iron, zinc and phosphorus for the body to absorb for its physiological activities but chlorine, aluminum, and silicon were not detectable. All these quality food properties make it good source of sweetening agent in food processing industry.
Physical description
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