Comparative Analysis of Nutrients Content and Characterization of Oil from Two Varieties of Tiger Nut (Cyperus esculentus)

Background: Tiger nut (Cyperus esculentus) belong to the family of Cyperaceae and order Commelinalis. It has been existing for more than 4,000 years ago.
 Objective: To determine nutritional composition (protein, fat, fiber, ash, moisture carbohydrate) nut, extract characterize oil from varieties tiger nuts, mineral elements presence in nut.
 Study Design: A descriptive research design was adopted by this study nuts Place Duration Study: The conducted at Biochemistry Department, Bayero University Kano, between April, 2019 September, 2019.
 Methods: Proximate compositions were determined using method describe Association official analytical chemist’s, while Carbohydrate difference. physicochemical properties American Chemist’s society Mineral determined.
 Results: proximate yellow variety (9.48%), ash (2.07%), fat (33.5%), protein (6.11%), crude fibre (17.5%) carbohydrate (31.2%). Corresponding values brown (9.62%), (2.76%), (34.2%), (6.93%), (15.3%) (30.9%) respectively. extracted a golden colour nutty taste. saponification, acid, peroxide, iodine free fatty acid found be 210.8±4.28, 3.17±0.64, 1.00±0.52, 78.7±13.1 0.40±0.21 also 212.2±4.92, 3.36±0.56, 1.06±0.75, 76.5±14.6 0.42±0.04 not significantly (P> 0.05) different th element (mg/100g) is Mg 133.67, P 527.33, K 957.67, Ca 394, Cu 2.0 Fe 1.86. are 118.13, 159.61, 384.33, 152, 1.04. Lead Cadmium detected both varieties.
 Conclusion: These results indicate that tuber could good source edible oil, highly nutritive can provide lot energy like some starchy food.