ABSTRACT

High fiber snacks are crucial for human consumption and it contribute to reduction of certain diseases. The consumption of bakery products such as biscuit in Nigeria is on steady because of it convenient and ready-to-eat. High fiber biscuit were produced using African yam bean, corn and tiger-nut and 100% wheat flour as the control sample. The raw materials were sorted, washed, dried and milled to flour. The materials were blended at different ratio, (100% African yam bean: 10%Tiger-nut flour), (70% African Yam Bean: 30% Corn flour: 10% Tiger-nut flour) (50% African Yam Bean: 50% Corn flour: 10% Tiger-nut flour) (30% African Yam Bean: 70% Corn flour: 10% Tiger-nut flour) (100% Corn flour: 10%Tiger-nut flour). They were subjected to different analysis which include, proximate, minerals, vitamins, anti-nutrients and sensory evaluation. The results revealed the following; Proximate parameters (%), Dry matter ranged from (95.80 - 96.79), moisture (3.22 - 4.20), crude protein (9.97-22.42), fat (9.04-14.14), dietary fiber (1.38-2.76), ash (1.94-4.02), carbohydrate (57.83-67.85) energy (402.23 kcal-438.54 kcal). Mineral analysis showed the following results (mg/100g): Calcium (26.30 -153.53), phosphorus (2.73 -117.11), iron (2.97– 9.97), magnesium (7.20 – 125.38), potassium (5.71– 250.85), zinc (1.93– 8.32), sodium (4.76– 17.2). Vitamin analysis showed the following results (mg/100g): Carotenoid (2.18 µg/g -19-55 µg/g), thiamin (2.82– 3.92), riboflavin (1.71– 2.52), niacin (0.52– 1.36) and vitamin C (4.85 – 26.52). Phytochemical analysis showed the following results (mg/100g): Phenol (0.02 – 0.10), flavonoid (0.86-1.22), alkaloid (0.07– 0.31), saponin (0.12– 1.18), phytate (0.09 -1.19), tannin (0.11– 0.56), trypsin inhibitor (0.12– 1.09). The sensory results revealed that the samples obtained were acceptable to the panelists, and there were slight significant differences (p>0.05) between the control (100% wheat flour) and the samples in terms of overall acceptability, but all the samples were acceptable by the panelist.