scholarly journals Effect of Grewia venusta FRESEN mucilage on the proximate composition, physical and sensory properties of bread produced from wheat and cassava composite flours

2017 ◽  
Vol 6 (2) ◽  
Author(s):  
Arubi P. Alobo ◽  
Gibson L. Arueya
Keyword(s):  
Stem Bark ◽  
Sensory Properties ◽  
Loaf Volume ◽  
Bread Making ◽  
Cassava Flour ◽  
Composite Flours ◽  
Bread Production ◽  
Natural Additive ◽  
Sweet Cassava ◽  
Composite Bread

Wheat and cassava composite breads are generally associated with volume and textural defects in contrast with the traditional wheat based variants. Efforts to mitigate this challenge through use of synthetic additives have been unsuccessful owing to safety concerns. The objective of this study was to explore Grewia venusta mucilage as a potential natural additive in wheat-cassava composite bread production. Sweet cassava flour was used to replace wheat flour at 100: 0 (control), 90:10, 80:20 and 70:30% ratios in bread making. Aqueous extract of G. venusta stem bark was oven dried (50±3 oC), milled and added at 0, 1.0 and 2.0% (w/w) to the flour mixtures. These, along with other conventional inputs were mixed, and used to produce bread. Proximate compositions, physical and sensory properties of the bread loaves were evaluated. Cassava flour inclusion resulted in significant (P≤0.05) decrease in the protein content of the control from 18.1% to 12.1% (90:10%), 11.5% (80:20%) and 9.9% (70:30%). Addition of mucilage marginally increased the protein and dietary fibre contents of the loaves. Loaves containing 1-2% mucilage were more regular in shape with smoother crust than those without mucilage. Cassava flour addition at 10%, 20% and 30% decreased loaf height from 6.0 cm to 5.8 cm, 5.7 cm and 5.5 cm, as well as loaf volume from 815.5 cm3 to 783.1 cm3, 776.8 cm3 and 744.5 cm3, respectively. Mucilage inclusion resulted in increased heights and volumes of the loaves and reduced weights of loaf fragments upon slicing. The mucilage significantly improved the texture of the bread loaves. 

scholarly journals The Effect of Ascorbic Acid on the Physical and Proximate Properties of Wheat-Acha Composite Bread

2021 ◽  
pp. 93-100
Author(s):  
N. C. Onuegbu ◽  
P. C. Ngobidi ◽  
N. C. Ihediohanma ◽  
E. N. Bede
Keyword(s):  
Ascorbic Acid ◽  
Absorption Capacity ◽  
Ash Content ◽  
Sensory Properties ◽  
Bread Making ◽  
Composite Flours ◽  
Significant Difference ◽  
Flour Sample ◽  
Sensory Parameters ◽  
Composite Bread

This work studied the effect of different proportions of ascorbic acid on the physical and proximate properties on wheat-acha composite bread. Bread was produced from wheat (Triticum aestivum) and acha (Digitaria exilis) composite flours. The wheat: acha ratios used were 100:0, 90:10 and 80:20. The proximate, and functional properties of the flours were analysed. The dough improver, ascorbic acid was added at 80, 100 and 120ppm during the bread making process and the proximate, physical and sensory properties of the bread was analysed. Flour sample with 20% acha had the significantly highest values for bulk density (0.744g/cm3), water absorption capacity (1.5g/g), oil absorption capacity (1.564g/g), foam capacity (11.32%) and swelling index (1.24). There was no significant difference in the crude fat and ash content of all bread samples. Significant difference was observed in the volume and specific volume of the bread samples, with 100% wheat flour giving the highest values of 431.33 ml and 3.16 ml/g respectively. However, addition of ascorbic acid significantly improved these parameters with no significant difference between the 100ppm and 120ppm bread samples.  Also the bread samples produced with 100:0 and 90:10 wheat: acha flours showed no significant difference in their sensory properties. The 80:20 composite bread gave significantly lower sensory scores for all the sensory parameters.

scholarly journals Effect of optimizing process variables on the quality characteristics of cassava-wheat composite bread

2021 ◽  
Vol 19 (1) ◽  
pp. 1-17
Author(s):  
Taiwo O. Olurin ◽  
Olayemi E. Dudu ◽  
Adeola M. Olaniyan ◽  
Olugbenga A. B. Ogunmoyela
Keyword(s):  
Water Content ◽  
Specific Volume ◽  
Positive Impact ◽  
Quality Characteristics ◽  
Wheat Bread ◽  
Validity And Reliability ◽  
Bread Making ◽  
Cassava Flour ◽  
Whole Wheat Bread ◽  
Composite Bread

The optimisation of bread-making process can have a positive impact in ramping up the quality characteristics of cassava-wheat bread to  that of whole wheat bread. In this study, a threevariable Box-Behnken design response surface methodology was employed to investigate and optimise independent variables namely cassava flour composition, water content and proofing time in relation to response variables namely dough yield, loaf specific volume and loaf protein of cassava-wheat-composite bread. The data from the experimental design were fitted into second-order regression models and their validity and reliability were confirmed by analysis of variance. Optimal cassava flour composition, water content and proofing time were derived as; 100 g/kg, 589 g/kg and 90 min, respectively. It was revealed that cassava flour composition had the most effect on the quality characteristics of cassava-wheat-composite bread. At constant cassava flour  composition, increase in water content and proofing time had a positive effect on all the studied quality characteristics of cassava-wheat composite bread. Increase cassava flour composition regardless of proofing time and water content had a negative effect on loaf specific volume and protein. This study has provided bread-making conditions which can be utilised in enhancing the consumer acceptability of cassava-wheat composite bread.  

scholarly journals Assessment of the Nutritional Composition, Physical Properties and Sensory Quality of Composite Bread Baked with High-Quality Cassava Flour from Biofortified and White-Fleshed Cassava Roots

2019 ◽  
Author(s):  
Wasiu Awoyale ◽  
Adebayo B. Abass ◽  
Paul Amaza ◽  
Olayemi Oluwasoga ◽  
Gregory Nwaoliwe
Keyword(s):  
Physical Properties ◽  
Sensory Quality ◽  
Significant Negative Correlation ◽  
Nutritional Composition ◽  
Wheat Bread ◽  
Loaf Volume ◽  
High Quality ◽  
Cassava Flour ◽  
Composite Bread

With proper processing and utilization, biofortified cassava may contribute to the nutritional status of the consumers, thus, the need for this study. High-quality cassava flour from white- (TME 419) and biofortified (TMS 01/1368) cassava varieties were produced at a commercial processing factory, after which the flour is composite with wheat flour to produce bread. The nutritional composition, physical properties and sensory quality of the composite bread were analyzed using standard methods. Results showed that composite bread from 20% biofortified cassava flour (20-YCF) had a higher value of total β-carotene (0.74 μg/g), moisture (37.83%) and ash (2.29%) contents. The fat (3.72%) and protein (12.83%) contents were higher in 20% white cassava flour (20-WCF) composite bread. The 20-YCF composite bread had the highest loaf volume (3286.2 cm3), elasticity (6.32), chewiness (40.51 N) and gumminess (6.41), 20-WCF composite bread had higher specific volume (3.59 cm3/g) and hardness (176.50 N). The 100% wheat bread had higher cohesiveness (0.10) and loaf weight (932.35 g). A significant negative correlation (r = - 0.98, p≤0.05) exist between bread hardness and protein content. The composite bread compared favourably with the 100% wheat bread in terms of weight and aroma, but, the 100% wheat bread was more acceptable.

scholarly journals Retention of pro-vitamin A carotenoid in composite bread baked with high quality cassava flour from yellow-fleshed cassava root

2018 ◽  
Vol 8 (9) ◽  
pp. 438
Author(s):  
Wasiu Awoyale ◽  
Adebayo Abass ◽  
Bussie Maziya-Dixon
Keyword(s):  
Vitamin A ◽  
Human Body ◽  
Dry Matter ◽  
Composite Flour ◽  
High Quality ◽  
Cassava Flour ◽  
Cassava Root ◽  
Bread Production ◽  
Β Carotene ◽  
Composite Bread

Background: As one of the most widely consumed foods, bread is one of the most important agricultural products. Bread made from high-quality cassava flour is consumed in some parts of Sub-Sahara Africa (SSA). The bread has no pro-vitamin S carotenoids (pVAC) due to the use of artificial colorants. Consequently, there is a need for the use of pVAC rich foods for bread production. Foods that are rich with pro-vitamin A carotenoids can be converted into retinol in the human body and whose bioconversion contributes to the reduction of vitamin A deficiency diseases (VAD). VAD has caused annual loss of life in SSA, especially in Nigeria. The yellow-fleshed cassava root might contribute to the reduction of this disease. The high quality yellow cassava flour (YHQCF) produced from yellow-fleshed cassava root may contribute to the pVAC composition of bread. As a result, there is a need for the evaluation of the retention of pVAC in composite bread baked with high quality cassava flour from yellow-fleshed cassava roots. Methods: The YHQCF was produced from TMS01/1368 cassava variety. The bread loaves consisted of 20% and 100% YHQCF and were produced by mixing the sugar, margarine, yeast, improver, and salt with the composite flour and YHQCF respectively, after which water was added and mixed to get the homogenous dough. The dough was proofed for 2.5 hours, kneaded, cut into shape, placed in a lubricated baking pan, and baked at 200oC for 30 min. Analyses of the pro-vitamin A (cis and trans-β carotene) and dry matter content were carried out on all the samples, including samples from the YHQCF production steps using standard methods. The samples from the YHQCF production steps were chosen and analyzed for pVAC in order to check the levels of degradation of the pVAC from the raw cassava root to using the root for flour production and the quantity of pVAC retained when 100% of the YHQCF is used for bread production compared to 20% composite. The β-carotene nutrient retention of the bread was also calculated.Results: The results demonstrated how the total pVAC content of the raw yellow-fleshed cassava root was 16.83 µg/g dry basis with 29% dry matter (DM) content. Subsequent processing by peeling, washing, grating, and dewatering into granules (56% DM) caused 48% reduction in the pVAC content which was reduced to 40% after drying and milling the dried grits into YHQCF (97% DM). Preparation of recipe for bread demonstrated how the 20% composite flour dough (61% DM) contained 0.29 µg/g db pVAC representing 1.72% retention, which was later reduced to 0.25 µg/g db pVAC or 1.49% retention after baking (62%DM). On the other hand, bread loaves baked from 100% YHQCF (67% DM) retained 0.74 µg/g db pVAC representing 4.40% of the 16.83 µg/g db pVAC in the starting raw material.  Conclusions: The bread produced from 100% YHQCF may contribute to the pro-vitamin A status of bread consumers in SSA more than the 20% YHQCF composite. However, both bread samples are low in pVAC. In order to attain the required retinol equivalent level after bioconversion in the human body, consumption of other foods rich in vitamin A would be required to attain the required retinol equivalent level after bioconversion in the human body but can be enhanced if consumed with other foods rich in vitamin A.Keywords: High quality cassava flour; composite flour; Bread; Pro-vitamin A carotenoid; Nutrition

scholarly journals NUTRITIONAL AND SENSORY ANALYSES OF WHEAT-UNRIPE PLANTAIN COMPOSITE FLOUR ON BREAD MAKING

2021 ◽  
Vol 5 (9) ◽  
Author(s):  
Christopher J. Etti ◽  
Victoria G. Ekanem
Keyword(s):  
Agricultural Products ◽  
Wheat Bread ◽  
Composite Flour ◽  
Loaf Volume ◽  
Bread Making ◽  
High Iron Content ◽  
Nutritional Analysis ◽  
Composite Flours ◽  
Sensory Analyses ◽  
Loaf Weight

This study analyzes the nutritional and sensory properties of wheat- and unripe plantain composite flour having a mix ratio of 70:30, 80:20, 90:10 and 100:0 respectively, with 100:0 ratio mix serving as the control. Unripe plantain flour was selected due to its high iron content which can solve dietary concerns encountered by anaemic and celiac patients because of low iron and high protein (gluten) content in wheat bread. The nutritional analysis of the composite flour such as ash, lipid, fibre, carbohydrate, protein, moisture content and iron contents of the mixed flour were determined. Physical properties of the composite bread were determined: loaf weight, loaf volume, loaf height, and loaf specific volume.The incorporation of plantain flour into baking bread became effective because it is economical, better supplies essential nutrients such as iron and protein to humans, and a better overall use of domestic agricultural products such as plantain.Incorporation of higher amount of unripe plantain flour increased loaf weight with a corresponding reduction in specific volume of the bread, which affected the bread making process. It was concluded that organoleptically acceptable bread could be formulated from wheat-unripe plantain composite flours using up to 70:30 mix ratio as maximum acceptable levels of substitution for bread making

Maximizing the incorporation of cassava flour as an adjunct in bread baking in Nigeria

2019 ◽  
Author(s):  
Chem Int
Keyword(s):  
Wheat Flour ◽  
Wheat Gluten ◽  
Egg White ◽  
Absorption Capacity ◽  
Food Sources ◽  
Wheat Bread ◽  
Cassava Flour ◽  
Composite Flours ◽  
Acceptable Quality ◽  
Composite Bread

Bread is popular around the world and is one of the world’s oldest foods. Bread is usually made from common wheat-flour dough. Till date most people are not familiar with other types of bread apart from that made from 100% wheat flour. When a part of wheat flour is replaced with flours from other food sources (yam, cassava, etc) the wheat gluten is automatically reduced. This study aimed at re-examining the approval of ten percent (10%) cassava flour inclusion in bread baking in Nigeria and evaluating higher % substitutions, with a view to increasing cassava carrying capacity for producing acceptable bread. The water absorption capacity (WAC) of wheat, cassava and composite flours ranged from 62.7 to 79% while oil absorption capacity (OAC) ranged from 4.5 to 72%. As cassava percent inclusion increased both WAC and OAC increased. Bread loaves produced from 10-20% inclusions without egg white had sensory scores of 3.2 to 3.9 and were significantly (p < 0.05) better than 25-30% wheat cassava composite bread loaves. In all sensory attributes, 10-20% cassava inclusion, with added egg white, produced bread loaves which were as good as 100% wheat bread. In terms of taste, colour, odour and texture 25-30% composite bread loaves had identical sensory values. This study showed that bread of acceptable quality can be produced from wheat flour substituted with up to 30% cassava flour.

scholarly journals Effect of Cassava Flour Characteristics on Properties of Cassava-Wheat-Maize Composite Bread Types

2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
Maria Eduardo ◽  
Ulf Svanberg ◽  
Jorge Oliveira ◽  
Lilia Ahrné
Keyword(s):  
Bread Quality ◽  
Wheat Bread ◽  
Bread Making ◽  
Cassava Flour ◽  
Bread Crumb ◽  
Crumb Firmness ◽  
Cassava Bread ◽  
High Level ◽  
Full Factorial ◽  
Composite Bread

Replacement of wheat flour by other kinds of flour in bread making is economically important in South East Africa as wheat is mainly an imported commodity. Cassava is widely available in the region, but bread quality is impaired when large amounts of cassava are used in the bread formulation. Effect of differently processed cassavas (sun-dried, roasted and fermented) on composite cassava-wheat-maize bread quality containing cassava levels from 20 to 40% (w/w) was evaluated in combination with high-methylated pectin (HM-pectin) added at levels of 1 to 3% (w/w) according to a full factorial design. Addition of pectin to cassava flour made it possible to bake bread with acceptable bread quality even at concentration as high as 40%. In addition to cassava concentration, the type of cassava flour had the biggest effect on bread quality. With high level of cassava, bread with roasted cassava had a higher volume compared with sun-dried and fermented. The pectin level had a significant effect on improving the volume in high level roasted cassava bread. Crumb firmness similar to wheat bread could be obtained with sun-dried and roasted cassava flours. Roasted cassava bread was the only bread with crust colour similar to wheat bread.

The effect of the stale bread flour addition on flour and bread quality

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Hacer Meral ◽  
M. Murat Karaoğlu
Keyword(s):  
Physicochemical Properties ◽  
Wheat Flour ◽  
Sensory Properties ◽  
Bread Quality ◽  
Production And Consumption ◽  
Composite Flours ◽  
Bread Production ◽  
Addition Level

AbstractIn this study, the effect of the flour, which was obtained from stale bread, on flour and bread quality was investigated. The bread that was staled at refrigerator for 7 days was prepared as whole and crumb, and was grinded to convert into flour. The staled whole and crumb bread flours were stored at −18 °C and used to replace 0, 15, 30 and 45% of wheat flour. Then microbiological and physicochemical properties of flours; physical, textural and sensory properties of bread obtained from these composite flours were investigated. We concluded that stale bread flour could be used for bread production at the level of 15%. If the total bread production and consumption is considered, this addition level could provide a significant amount of waste bread recycling each year.

scholarly journals Proximate composition, bread characteristics and sensory evaluation of cocoyam-wheat composite breads

2011 ◽  
Vol 11 (48) ◽  
pp. 5586-5599
Author(s):  
RJ Mongi ◽  
◽  
BK Ndabikunze ◽  
BE Chove ◽  
P Mamiro ◽  
...  
Keyword(s):  
Sensory Evaluation ◽  
Proximate Composition ◽  
Progressive Increase ◽  
Wheat Bread ◽  
Loaf Volume ◽  
Bread Making ◽  
Whole Wheat ◽  
Whole Wheat Bread ◽  
Composite Bread ◽  
Loaf Weight

This study was carried out to investigate proximate composition, bread characteristics and sensory evaluation of cocoyam-wheat composite breads at different levels of cocoyam flour substitution for human consumption.A whole wheat bread (WWB) and cocoyam-composite breads (CCB1,CCB 2 and CCB 3) were prepared in triplicate at 0, 10, 20 and 30% levels of cocoyam flours substitution respectively and assessed for proximatecomposition, bread characteristics and sensory attributes.The results indicate that carbohydrate, crude fiber, and ash contents of the cocoyam-composite breads increased significantly (p<0.05) while the moisture and protein contents decreased significantly with progressive increase in the cocoyam flour substitution. The significant (p<0.05) highest ash, fibre and carbohydrate values of 1.61, 1.54 and 70.40 g/100g dm respectively were observed in 30% cocoyam-wheat composite bread compared to lowest values of1.15, 0.29 and 63.25 g/100g dm, respectively in 100% wheat bread. The significant (p<0.05) higher moisture and protein values of 20.99 and 12.54 g/100g dm were observed in 100% wheat bread compared to lowest values of 17.31 and 9.04 g/100g dm, respectively in 30% cocoyam-wheat composite bread. Bread characteristics showed that, the loaf weight of cocoyam composite breads increased significantly (p<0.05) while loaf volume and specific loaf volume decreased significantly (p<0.05) with increasing cocoyam flour substitution The significant (p<0.05) highest loaf weight of 229.33 g was observed in 30% cocoyam-wheat composite bread compared to 208.33, 221.67 and 225 g observed in 100% wheat bread, 10 and 20% cocoyam-wheat composite breads respectively. The highest loaf volume and specific loaf volume of 800 and 3.49 cc were observed in 100% wheat bread compared lowest values of 580 and 2.78 cc respectively observed in 30% cocoyam-wheat composite bread. The sensory evaluation showed no significant (p>0.05) differences in sensory attributes of taste, aroma and acceptability between the 100% wheat and 10% cocoyam-wheat composite breads (p<0.05). In conclusion, this study has shown that the use of cocoyam flour in bread making is feasible and that incorporation of up to 10% of the flour into wheat flour produced acceptable bread with similar taste and aroma comparable to 100% wheat bread. Nevertheless, it is important to consume this bread with other protein rich diet in order to supplement the reduction resulted from substitution.

scholarly journals Physicochemical characteristics of bread partially substituted with finger millet (Eleusine corocana) flour

2021 ◽  
Vol 24 ◽  
Author(s):  
Masala Mudau ◽  
Shonisani Eugenia Ramashia ◽  
Mpho Edward Mashau ◽  
Henry Silungwe
Keyword(s):  
Proximate Composition ◽  
Finger Millet ◽  
Color Difference ◽  
Physicochemical Characteristics ◽  
Composite Flours ◽  
Cereal Grain ◽  
Inclusion Level ◽  
Bread Production ◽  
Flour Blends ◽  
Composite Bread

Abstract Finger millet (Eleusine corocana) is a staple cereal grain available in most parts of Africa and India but it is an underutilized and neglected product. It has a low-glycemic index with some nutraceutical advantages. This study aimed to determine the physicochemical characteristics of bread made from wheat and finger millet (FM) composite flours. Wheat flour was blended with FM flour at 10%, 20%, 30% and 40% levels for bread production. Functional properties, pH of composite flours, physical properties and proximate composition of bread were determined. Water and oil holding capacity of flour blends increased from 130.61 to 135.06 and 120.55 to 125.43 g/g, respectively. However, packed and loose bulk density and emulsion stability decreased with inclusion level of FM flour. The pH values of flour blends increased from 5.88 to 6.11. The total color difference of composite bread in terms of crumb and crust increased with the addition of FM flour. Proximate composition of composite bread revealed decrease in moisture and protein contents and increase in ash, fiber, fat contents and carbohydrate at p < 0.05. Incorporation of FM flour decreased the volume and specific volume of bread from 400 to 256.67 mL and 2.69 to 1.81. mL/g, respectively. However, the weight of bread increased from 141.77 to 148.52 g.

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