Sensory and physicochemical properties of biscuit produced from blends of whole wheat, soy okara and tigernut residue flours

Biscuits are popular ready to eat, cheap and convenient food products that are consumed globally. Supplementation of wheat flour with inexpensive staples from other cereals, legumes, roots and tubers will help in improving the nutritional quality of wheat products. Therefore, this study investigated...

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Main Authors: Helen Obioma Agu, Jennifer Chikamara Ihionu, Joy Chinenye Mba
Format: Article
Language:English
Published: Elsevier 2023-04-01
Series:Heliyon
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2405844023025252
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author Helen Obioma Agu
Jennifer Chikamara Ihionu
Joy Chinenye Mba
author_facet Helen Obioma Agu
Jennifer Chikamara Ihionu
Joy Chinenye Mba
author_sort Helen Obioma Agu
collection DOAJ
description Biscuits are popular ready to eat, cheap and convenient food products that are consumed globally. Supplementation of wheat flour with inexpensive staples from other cereals, legumes, roots and tubers will help in improving the nutritional quality of wheat products. Therefore, this study investigated the sensory and physicochemical properties of biscuits produced from blends of whole wheat, soy okara and tigernut residue flours. The sensory qualities of the twelve whole wheat, soy okara and tigernut residue flour biscuits at p < 0.05 ranged from 5.36 to 7.68 (color), 5.60–7.64 (appearance), 4.48–7.96 (mouthfeel), 4.28–7.76 (aroma), 3.96–8.32 (taste), 3.64–8.20 (crunchiness), 3.56–7.56 (crispiness), and 5.08–8.36 (overall acceptability). Physical, proximate and mineral analysis were carried out on the best five biscuit samples containing 100:0:0 (MVP), 60:20.98:19.02 (ISP), 50.75:39.25:10 (JAR), 53.79:22.57:23.64 (GEN) and 56.32:27.39:16.29 (XEC) whole wheat, soy okara and tigernut residue flours respectively. The physical analysis showed that diameter (38.13–38.17 mm), height (37.73–37.76 mm) and thickness (6.10–6.17 mm) were not significantly different, but the weight (7.30–7.73 g), spread ratio (5.73–6.10 mm) and breaking strength (600–643 g) significantly (p < 0.05) differed among the biscuit samples. The proximate composition of the biscuits ranged from; ash (1.70–1.90%), moisture (4.00–5.70%), fiber (7.00–11.30%), fat (16.20–17.30%), protein (6.50–12.00%), carbohydrate (56.94–59.20%) while mineral content ranged from; magnesium (122.00–134.00 mg/100 g), sodium (16.00–28.00 mg/100 g), calcium (12.00–24.00 mg/100 g), iron (2.30–3.50 mg/100 g) and phosphorus (100.00–121.00 mg/100 g). The study showed that substitution of wheat flour with soy okara and tigernut residue flour at a ratio of 60:20.98:19.02 yielded the most acceptable biscuits in all the sensory attributes assessed. This implies that biscuits produced from this composite blend contain sufficient amounts of protein, fat, fiber and carbohydrate. Hence, they can serve as relief for malnutrition.
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spelling doaj.art-ed844c8fc1e146ae9b44eaa7a46ba93c2023-04-29T14:56:12ZengElsevierHeliyon2405-84402023-04-0194e15318Sensory and physicochemical properties of biscuit produced from blends of whole wheat, soy okara and tigernut residue floursHelen Obioma Agu0Jennifer Chikamara Ihionu1Joy Chinenye Mba2Corresponding author.; Department of Food Science and Technology, Nnamdi Azikiwe University, Awka P.M.B., 5025, Awka, Anambra State, NigeriaDepartment of Food Science and Technology, Nnamdi Azikiwe University, Awka P.M.B., 5025, Awka, Anambra State, NigeriaDepartment of Food Science and Technology, Nnamdi Azikiwe University, Awka P.M.B., 5025, Awka, Anambra State, NigeriaBiscuits are popular ready to eat, cheap and convenient food products that are consumed globally. Supplementation of wheat flour with inexpensive staples from other cereals, legumes, roots and tubers will help in improving the nutritional quality of wheat products. Therefore, this study investigated the sensory and physicochemical properties of biscuits produced from blends of whole wheat, soy okara and tigernut residue flours. The sensory qualities of the twelve whole wheat, soy okara and tigernut residue flour biscuits at p < 0.05 ranged from 5.36 to 7.68 (color), 5.60–7.64 (appearance), 4.48–7.96 (mouthfeel), 4.28–7.76 (aroma), 3.96–8.32 (taste), 3.64–8.20 (crunchiness), 3.56–7.56 (crispiness), and 5.08–8.36 (overall acceptability). Physical, proximate and mineral analysis were carried out on the best five biscuit samples containing 100:0:0 (MVP), 60:20.98:19.02 (ISP), 50.75:39.25:10 (JAR), 53.79:22.57:23.64 (GEN) and 56.32:27.39:16.29 (XEC) whole wheat, soy okara and tigernut residue flours respectively. The physical analysis showed that diameter (38.13–38.17 mm), height (37.73–37.76 mm) and thickness (6.10–6.17 mm) were not significantly different, but the weight (7.30–7.73 g), spread ratio (5.73–6.10 mm) and breaking strength (600–643 g) significantly (p < 0.05) differed among the biscuit samples. The proximate composition of the biscuits ranged from; ash (1.70–1.90%), moisture (4.00–5.70%), fiber (7.00–11.30%), fat (16.20–17.30%), protein (6.50–12.00%), carbohydrate (56.94–59.20%) while mineral content ranged from; magnesium (122.00–134.00 mg/100 g), sodium (16.00–28.00 mg/100 g), calcium (12.00–24.00 mg/100 g), iron (2.30–3.50 mg/100 g) and phosphorus (100.00–121.00 mg/100 g). The study showed that substitution of wheat flour with soy okara and tigernut residue flour at a ratio of 60:20.98:19.02 yielded the most acceptable biscuits in all the sensory attributes assessed. This implies that biscuits produced from this composite blend contain sufficient amounts of protein, fat, fiber and carbohydrate. Hence, they can serve as relief for malnutrition.http://www.sciencedirect.com/science/article/pii/S2405844023025252Soy okaraWhole wheatTigernut residueComposite floursBiscuits
spellingShingle Helen Obioma Agu
Jennifer Chikamara Ihionu
Joy Chinenye Mba
Sensory and physicochemical properties of biscuit produced from blends of whole wheat, soy okara and tigernut residue flours
Heliyon
Soy okara
Whole wheat
Tigernut residue
Composite flours
Biscuits
title Sensory and physicochemical properties of biscuit produced from blends of whole wheat, soy okara and tigernut residue flours
title_full Sensory and physicochemical properties of biscuit produced from blends of whole wheat, soy okara and tigernut residue flours
title_fullStr Sensory and physicochemical properties of biscuit produced from blends of whole wheat, soy okara and tigernut residue flours
title_full_unstemmed Sensory and physicochemical properties of biscuit produced from blends of whole wheat, soy okara and tigernut residue flours
title_short Sensory and physicochemical properties of biscuit produced from blends of whole wheat, soy okara and tigernut residue flours
title_sort sensory and physicochemical properties of biscuit produced from blends of whole wheat soy okara and tigernut residue flours
topic Soy okara
Whole wheat
Tigernut residue
Composite flours
Biscuits
url http://www.sciencedirect.com/science/article/pii/S2405844023025252
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