DETERMINATION OF ANTI-NUTRITIONAL AND ELEMENTAL COMPOSITION OF (TIGER NUT) CYPERUS ESCULENTUS LATIVUM
Abstract
Determination of antinutrients and elemental compositions of both fresh and dry
tiger nuts have been drawn following standards procedures and spectrophotometry
from institute of Agricultural Research, ABU, Zaria. Based on the results obtained,
the percentage ofphytates, oxalates, saponins,flavonoids and tannins in both fresh
and dry tiger nuts were:23.7, 23.2, 34.0, 24.1 and 26.0%; while that of dry tiger
nuts were: 29.5, 24.8, 25.2, 18.3 and 26.0% respectively. Also the results of
elemental compositions for mean concentrations of calcium, magnesium, iron and
potassium were: 0.34, 2.77, 11.52 and 40.00ppm for fresh tiger nuts; while the dry
tiger nuts were: 0.16, 2.68, 8.97 and 38.00ppm respectively. These values were
found to be within the safety limits of 1000-1300ppm, 360-420ppm, 1-20ppm and
2300-4300ppm by the United States WHO/FDA(2023) respectively. It is therefore
recommended that more research should be encouraged on scavenging activities,
proximate compositions and bioactive and antimicrobial activities of the fresh and
dry tiger nuts.
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