scholarly journals Chemical, Functional and Sensory Properties of Extruded Breakfast Strips Produced from a Blend of Orange-fleshed Sweet Potato, Soybean and Plantain Flour

2019 ◽  
pp. 1-9
Author(s):  
D. B. Kiin-Kabari ◽  
O. M. Akusu ◽  
U. A. Udoh

Breakfast strips were produced from different blends of orange-fleshed sweet potato (Ipomea batatas), plantain (Musa paradisiaca) and soybean (Glycine max) flours with substitution ratios of 100:0:0, 90:10:0, 90:0:10, 80:10:10, 70:15:15, 60:20:20 and 50:25:25 and labelled as samples A, B, C, D, E, F and G, respectively. The blends were evaluated for functional properties, total carotene, vitamins (B2 and B6) and sensory properties of the breakfast strips with a commercial breakfast food (Flakes) as control (sample H) . For the functional properties, the water absorption capacity decreased while the oil absorption increased with an increase in substitution levels of the soybean flour. The bulk density, solubility, swelling power and swelling volume were higher in sample A. The least gelation capacity maintained a constant rate of 4% across the blends. The moisture content of the strips ranged from 7.25-9.40%. The Ash contents were below 3% for all the blends. The protein contents increased with an increase in substitution with soybean flour while sample A - breakfast strips from 100% orange-fleshed sweet potato flour showed the highest value for fats (5.62%). The fibre content ranged from 0.69 to 5.14% and carbohydrate content reduced with an increased substitution with soybean flour (72.25-78.70%). The energy value ranged from 351.90-384.80 Kcal/100 g which was within the limit recommended for breakfast foods. Total carotene content increased with increased substitution with orange-fleshed sweet potato (15.18-33.56 mg/kg) which is significantly higher than the control at 0.75 mg/kg. The result of the sensory evaluation showed that the overall acceptability of the samples produced compared favourably with the control. Sample A and B showed a vitamin B2 of 4.70 and 4.00 mg/kg, respectively. However, the values decreased with increase in the addition of soybean while vitamin B6 increased with increase in soybean.

Author(s):  
Moses Terkula Ukeyima ◽  
Israel Okpunyi Acham ◽  
Comfort Temitope Awojide

Ogi was produced from composite flour of fermented Acha, roasted Soybean and Carrot.  The raw materials were blended in varying proportions. Proximate composition, functional properties and sensory characteristics of the formulated Ogi samples were evaluated. The results of the proximate composition showed a significant increase in moisture (5.36% to 9.94%), protein (3.94% to 16.98%), fat (1.89% to 10.23%), crude fiber (1.80% to 3.12%) and ash (0.35% to 0.99%); while a decrease was observed in carbohydrate (86.66% to 58.74%) with increase in supplementation with roasted Soybean flour and constant addition of carrot flour along with the milk flavor. The functional properties showed significant increase in foam capacity (5.99% to 7.97%), Swelling index (2.46 v/v to 3.08 v/v) and Least gelation capacity (8.10% to 14.0%); while a decrease was observed in bulk density (0.84 g/mL to 0.72 g/mL), water absorption capacity (1.40% to 1.10%) and foaming stability (3.39% to 2.79%). Sensory characteristics result revealed that there was no significant difference (p<0.05) in aroma and overall acceptability with increasing incorporation of roasted Soybean flour and constant addition of Carrot flour with milk flavor. Aside the control sample (containing 100% fermented Acha flour) there was preference for Sample C (70% fermented Acha flour: 15% roasted Soybean flour: 10% Carrot flour: 5% Milk flavor) and Sample D (60% fermented Acha flour: 25% roasted Soybean flour: 10% `Carrot flour: 5% Milk flavor) in terms of color (6.65 and 6.25), taste (6.95 and 6.35), aroma (6.45 and 6.30), mouth feel (6.10 and 6.35) and overall acceptability (6.50 and 6.50) respectively, among the blend formulations. Supplementation of fermented Acha with roasted Soybean and Carrot flour considerably increased the protein and fat contents of the blend; hence Soybean should be used for supplementation of cereal based product in order to improve their nutritional composition.


2019 ◽  
pp. 1-12
Author(s):  
M. O. Eke ◽  
D. Ahure ◽  
N. S. Donaldben

Cookies was produced from wheat (Triticum, spp), acha (Digitaria exilis), and sprouted soybeans (Glycine max) flour blends. The acha and soybeans were processed into flour and used to substitute wheat flour at different proportions with 100:0:0 wheat, acha and sprouted soybeans flour (WAS) as the control, 60:30:10, 50:40:10, 45:45:10, 40:50:10 and 35:55:10 (WAS). The functional properties of the wheat, acha and sprouted soybeans flour blends, physical properties and proximate compositions of the cookies were determined. The functional properties of the flour samples shows that the bulk density, wettability, water absorption capacity, oil absorption capacity and gelatinization temperature ranged from 0.63 g/ml-0.99 g/ml, 10.21-12.98 g/sec, 6.53-12.52 g/g, 0.52-0.66 g/g and 63.7-65.1ºC respectively. There were significant differences (p<0.05) in all the values. The proximate composition of cookies sample showed that crude protein, crude fat, crude fibre, ash, moisture and carbohydrate content ranged from 12.14-16.48 %, 2.10-3.74 %, 1.76-2.55 %, 2.75-8.55 %, 9.18-9.50 % and 59.37-72.06 % respectively. The physical properties of cookies showed that the weight, diameter, thickness and spread ratio ranged from 15.61-17.11g; 61.59-63.20mm; 9.88-11.99mm and 5.28-6.24 respectively. The control sample cookies from 100:0:0 (WAS), wheat, acha and sprouted soybeans flour blends sample had the highest sensory scores in terms of the taste, appearance, texture, aroma and overall acceptability. There was significant difference (p<0.05) in the colour, texture and aroma but there was no significant difference (p>0.05) in the taste and overall acceptability in 60:30:10, 50:40:10, 45:45:10, 40:50:10 and 35:55:10 (WAS) samples.


Author(s):  
Florence A. Bello ◽  
Etoro-Obong E. Akpan ◽  
Victor E. Ntukidem

The present study was undertaken to produce cookies from readily available but underutilized Nigerian crops such as sorghum, pigeon pea and orange fleshed sweet potato. Different blends of sprouted sorghum, pigeon pea and orange fleshed potato flour were mixed and coded in the ratios (w/w) 100:0:0 (A), 95:5:0 (B), 85:10:5(C), 75:15:10(D), 65:20:15(E) while 100% wheat flour (F) was produced as control. The functional properties of the flour samples were determined while produced cookies were evaluated for their physical, proximate, selected vitamins, anti-nutrients and sensory properties using standard methods. Significant (p < 0.05) increases in water absorption capacity, bulk density and swelling index of flour blends were observed as the level of substitutions increased. Control sample had the highest weight (13.89 g) and spread ratio (1.22) while sample E had the least weight (7.31 g) and least spread ratio (0.92). Moisture, crude protein, crude lipid, ash, crude fibre contents as well as energy value of flour blends cookies were significantly (p < 0.05) higher with increased level of pigeon pea and potato flours addition. Significant (p < 0.05) reduction in the carbohydrate content of the cookies was observed. Vitamin A and C contents of sample E were significantly (p < 0.05) higher than the value obtained for sample F. Anti-nutritional factors in the cookies samples were within permissible levels. Sensory ratings showed that sample B compared favourably with sample F based on overall acceptability.


2020 ◽  
Vol 18 (1) ◽  
pp. 88-102
Author(s):  
A. T. OMIDIRAN ◽  
O. A. ADERIBIGBE ◽  
O. P. SOBUKOLA ◽  
O. O. AKINBULE

This study evaluated some quality attributes of pancakes from peeled and unpeeled sweetpotato flours and cassava starch. Cassava starch was substituted up to 30% of the total composite flour. The proximate composition, colour, carotenoid and functional properties of the different flour blends were determined. The flour blends were processed into pancakes and the proximate composition and sensory acceptability of the pancakes were determined. Data obtained were subjected to analysis of variance. The result showed that they were significant differences (p<0.05) in the functional properties of the flour blends. Bulk density, Water absorption capacity, Oil absorption capacity, swelling capacity ranged from 0.70 to 0.78 g/ml, 1.87 to 2.30 g/ml, 1.02 to 1.40 g/ml and 5.18% to 6.66%  respectively. There were significant differences (p<0.05) in the proximate composition of the pancake samples. The values ranged from 42.76 to 45.53%, 2.13 to 3.98%, 9.06 to 10.34%, 5.01 to 7.18%, 3.75 to 6.01% and 29.19 to 35.33% for moisture, ash, fat, protein, crude fibre and carbohydrate contents, respectively. Pancake produced from 100:0 peeled and unpeeled sweetpotato flour had the highest score for overall acceptability which can compare favorably, with pancakes from wheat flour which is the control sample. In conclusion, sweetpotato flour blended with cassava starch at different ratio gave good proximate and functional properties which resulted in pancakes of good quality attributes.    


2019 ◽  
pp. 1-19
Author(s):  
Esther Kumea Ashun ◽  
Sarah Darkwa ◽  
Christiana Nsiah-Asamoah

The study focuses on the development of a complementary food (CF) with the orange-fleshed sweet potato (OFSP) to help address the public health problem of vitamin A deficiency among infants. Experimental research design was used for the study. Fifty six infants aged between 6 and 24 months were purposively sampled, together with their mothers, to evaluate three complementary food (CF) products and a control, code-named GAD, PEA, SAB and KAN respectively. The CF products were formulated from orange fleshed sweet potato, anchovies, onion and tomatoes; and the nutrients and functional properties were determined.  A questionnaire and an interview guide were used to collect data to assess the sensory attributes and overall acceptability of the formulated CF products. The results showed that the three complementary foods were nutrient dense, with the moisture content being highest in PEA and lowest in GAD.  GAD, PEA and SAB were all high in protein and fibre but low in fat and carbohydrate. KAN (control) was the most acceptable with respect to all the sensory attributes of a complementary food, although its overall acceptability was not significantly different from that of the other three CF products - GAD, PEA and SAB.


2020 ◽  
Vol 1 (1) ◽  
pp. 25-30
Author(s):  
Atinpoore Atuna Richard ◽  
◽  
Deborah Nyarkoa ◽  
Kweku Amagloh Francis ◽  
◽  
...  

Objective In this study, orange-fleshed sweet potato (OFSP) puree was substituted with wheat flour (48:52%) in the production of spaghetti, herein denoted VitAspag and compared with three existing whole wheat brands (Local, Oba and Spaghetti). Methods Hundred untrained panel list evaluated the colour, taste, stickiness, firmness and overall acceptability using a 5-point hedonic scale. The proximate and β-carotene content of VitAspag was carried out using standard methods and compared with the most preferred existing brand, Spaghetti. Results The sensory scores for all spaghetti brands were above 3, an indication of good consumer acceptability. There was no significant (p>0.05) difference among vitAspag, Local, Oba and Spaghetti with respect to all sensory attributes considered. The moisture, ash and fibre content ranged from 8.90% - 9.50%, 1.15% - 1.20% and 0.42% - 0.62%, respectively. Spaghetti, had a significantly higher protein (2.02% vs. 0.05%; p<0.001) and carbohydrates (81.0% vs. 79.7%; p = 0.024) content compared with VitAspag. VitAspag, was also significantly (p<0.001) higher in β-carotene, almost 1.6 times higher than Spaghetti. A 125 g and 500 g of vitAspag per day will respectively meet 10% and 9.03% of the daily vitamin A requirement of children <5 years (300 µg RAE/day) and pregnant and lactating mothers (1,300 µg RAE/day). Conclusion Ranking VitAspag similar to the existing commercial brand is an indication that consumers will equally accept it. OFSP puree could be composited with wheat flour up to (48:52%) on as is basis to make spaghetti and will contribute to a significant amount of dietary intake of vitamin A.


2021 ◽  
Vol 247 (4) ◽  
pp. 889-905 ◽  
Author(s):  
Joseph Kudadam Korese ◽  
Solomon Kofi Chikpah ◽  
Oliver Hensel ◽  
Elke Pawelzik ◽  
Barbara Sturm

AbstractOrange-fleshed sweet potato (OFSP) flour is rich in health-promoting compounds that can improve the nutritional benefits of baked products when blended with wheat flour. However, the flour particle size and blend proportion may affect the quality properties and consumer acceptability of bakery products. This study investigated the effect of flour particle sizes and blend proportions on the physical, nutritional, textural and sensory properties of peeled and unpeeled OFSP composite flour cookies. Peeled and unpeeled OFSP flours (≤ 250 μm and ≤ 500 μm particle size) were produced, and each was used to replace soft wheat flour at the rate of 0 to 100% for cookies formulation. The results obtained showed that substitution of wheat flour with OFSP flours significantly (p < 0.05) decreased cookies baking loss, thickness, volume, crust lightness (L*) but increased diameter, spread ratio, crust redness, yellowness, contents of ß-carotene, vitamin A, ascorbic acid, total phenolics and flavonoids, and the antioxidant capacity. The hardness and fracturability of the OFSP-based cookies ranged between 1.389 and 10.142 kg and 0.873 and 9.431 kg, respectively, whereas the values of the control cookies were 1.281 ± 0.003 kg and 1.274 ± 0.003 kg, respectively. The effect of flour particle size on the physical and nutritional properties of cookies was insignificant (p > 0.05). However, the ≤ 250 μm particle size flour cookies had higher overall acceptability than the ≤ 500 μm particle size flour cookies. The unpeeled OFSP composite cookies had higher bioactive compounds concentrations except for ascorbic acid but had lower overall acceptability than the peeled OFSP cookies. Generally, the 30% peeled OFSP composite flour cookies had the highest consumer acceptability.


Food Research ◽  
2021 ◽  
Vol 5 (4) ◽  
pp. 145-152
Author(s):  
M. Hasmadi ◽  
M. Merlynda ◽  
A.H. Mansoor ◽  
I. Salwa ◽  
M.K. Zainol ◽  
...  

This study aimed to determine the proximate compositions and functional properties of sweet potato flour from different varieties cultivated in Sabah, Malaysia, namely Jepun, Kairot and Kaladi. The results showed that the moisture content of all flour samples was below 14%. The fat and protein content of Jepun sweet potato variety were significantly different (p<0.05) as compared with Kairot and Kaladi sweet potato varieties. The ash and dietary fibre content of Kairot sweet potato flour were higher (p<0.05) compared to Jepun and Kaladi flours. In addition, Kaladi sweet potato had the highest carbohydrate content (82%). There were significant differences (p<0.05) in the values of L*, a* and b* for all sweet potato flours. The Jepun sweet potato flour had the highest foaming capacity, water absorption capacity, oil absorption capacity, swelling power and viscosity. Rapid Visco analyser revealed that significant differences were observed for pasting parameters such as peak viscosity, trough viscosity, breakdown viscosity, final viscosity and setback viscosity. The gelatinisation properties showed that Kairot sweet potato flour had the highest onset temperature, conclusion temperature and enthalpy while Kaladi sweet potato flour had the highest peak temperature.


Author(s):  
Demasse Mawamba Adelaïde ◽  
Assonfack Vanissa ◽  
Boudjeka Guenkam Vanessa ◽  
Djeukeu Asongni William ◽  
Dongho Dongmo Fabrice Fabien ◽  
...  

Aims: The aim of this study was to evaluate the nutritional and functional properties of powder from 2 Cameroonians squash pulp species (Cucurbita moschata Yellow and Orange pulp, and Cucurbita pepo orange pulp) and squash pulp-base biscuit to promote the integration of squash in the diet to help fight against micronutrient deficiencies and non-communicable diseases Methodology: The squash were cleaned and the pulp was blanched in boiling water for 3 minutes and dried at 60 °C for 24 h. The dried pulp was then finely crushed and sieved to obtain the powder. The proximal composition, the levels of macronutrients, vitamin C, carotenoids and minerals were determined as well as the functional properties. The powder sample with the highest carotenoid content was substituted by wheat flour in the proportions 0%, 5%, 10%, 15% and 20% for the biscuit formulation. Sensory properties (color, taste and overall acceptability) and total carotenoids content of the biscuit were then evaluated. Results: The nutrient contents per 100g of powder were 1.65g, 6.38-23.36 mg, 15.70-20.54 mg, 102.56-119.65 mg respectively for crude fibers, total carotenoids, vitamin C and potassium. Water absorption capacity (WAC), Water holding capacity (WHC) and oil holding capacity (OHC) varied from 7.50-8.25, 3.35-6.05 and 1.02-2.04 respectively. Values of swelling capacity (SC) and water solubility index (WSI) varied from 119-140 and 15-17.63, 314-348 and 22.33-24.9, 388-459 and 35.08-38.75 at room temperature, 65°C and 95°C respectively. Sensory analysis of the biscuits showed that the biscuit made with 10% of squash powder was the most appreciated and contained 2.29 mg/100g of total carotenoids. Conclusion: Regular consumption of these Cameroonians squash pulp powder or foods formulated with them could help to combat nutritional disease.


Sign in / Sign up

Export Citation Format

Share Document