Evaluation of Proximate and Micronutrient Compositions of Some Selected Locally Consumed Biscuits Within Enugu State, Nigeria

Abstract

This work evaluated the mineral, proximate and vitamin compositions of some locally consumed biscuits within Enugu State, Nigeria. The nutritional compositions of the biscuit samples were assessed using conventional techniques. The results of the proximate analysis showed that the moisture contents of the different biscuit samples ranged from 1.82±0.03 to 4.58±0.10% and ash content ranged from 0.55±0.04% to 2.24±0.01%. The crude lipid content ranged from 11.56±0.05% to 26.63±0.04% while the crude fibre content varied from 0.03±0.01% to 3.50±0.40%. The crude protein content in the biscuit samples varied from 2.49±0.00% to 5.04±0.05%. The total reducing sugar contents in the biscuit samples varied from 24.89±0.28 mg/100 g to 39.80±0.42 mg/100 g, while the calorific value varied from 1740.49±0.64 KJ to 2259.05±1.63kj/100 g. Vitamin C contents of the different biscuit samples varied from 1.02±0.19 mg/100 g to 12.95±0.17 mg/100 g. The vitamin B1 contents of the different biscuit samples ranged from 1.30±0.14 µg/100 g to 51.90±0.14 µg/100 g, while the vitamin B2 contents varied from 1.30±0.14 µg/100 g to 51.90±0.14 µg/100 g. Vitamin B12 content varied from 0.34±0.07 µg/100 g to 41.12±0.28 µg/100 g. The vitamin A content varied from 4.49±0.11 mg/100 g to 15.05±0.11 mg/100 g while the vitamin E content varied from 4.57±0.11 µg/100 g to 35.83±0.11 µg/100 g. The sodium concentration ranged from 43.36±0.0092 ppm to 82.59 ±0.0039 ppm, while calcium concentration varied from 1.08±0.0005 ppm to 10.93±0.0005 ppm, while the phosphorus concentration varied from 0.01±0.0001 ppm to 0.05±0.0006 ppm. The findings of this study showed that the different biscuit samples consumed in Enugu State contain important nutrients in a considerable amount.