Proportion Of Flour Research Articles

Proximate, Mineral, Amino Acid Composition, and Bioactive Properties of Dough Meals Supplemented with African Walnut Flour

This study investigated the impact of African walnut flour supplementation on the nutritional and bioactive properties of dough meals formulated with varying proportions of plantain flour. The proximate composition, mineral content, amino acid profile, color characteristics, antioxidant and anti-diabetic properties were analyzed for five different formulations: 100% plantain flour (P100), 95% plantain flour with 5% African walnut flour (PAW95), 90% plantain flour with 10% African walnut flour (PAW90), 85% plantain flour with 15% African walnut flour (PAW85), and 80% plantain flour with 20% African walnut flour (PAW80). The proximate analysis revealed significant variations, with moisture content ranging from 53.71% to 71.89%, ash content from 0.77% to 1.28%, and protein content from 3.38% to 11.14%. Notably, PAW80 showed the highest protein content. Mineral analysis showed that calcium, potassium, and magnesium levels varied significantly across the samples, with the highest calcium content observed in PAW80 (32.55 mg/kg) and the highest potassium content in PAW95 (47.80 mg/kg). Amino acid analysis indicated that essential amino acids, particularly leucine, valine, and lysine, were present in higher concentrations in the supplemented samples compared to P100. Antioxidant assays indicated that PAW80 had the highest 2,2-diphenyl-1-picrylhydrazyl (DPPH) (67.22%) and hydroxyl (73.66%) free radical scavenging activities. The in vitro anti-diabetic assays revealed that α-amylase and α-glucosidase inhibitory activities were enhanced with higher walnut flour supplementation. These findings suggest that African walnut flour can significantly enhance the nutritional quality and bioactive properties of plantain-based dough meals, and thus make it a functional food with potential health benefits.

Effect of Level of Sorghum and WPC-80 on Quality of Sorghum Incorporated Chhana Cake

The objective of the present investigation was to develop a technology for manufacture of a millet based chhana cake. Sorghum incorporated chhana cake (SCC) was prepared using chhana as base material. Sorghum flour was added @ 20 % (w/w of chhana). Four batches of chhana were prepared from milk using different levels of milk fat, viz. 4.5, 5.0. 5.5 and 6.0%. It was found that chhana prepared from milk containing 6.0% milk fat was most suitable for preparation of SCC. The proportion of sorghum flour, blend of white butter and cottonseed oil (1.5:1.0 w/w) and WPC-80 in the formulation was optimized using Response Surface Method. The suggested solution was 25.31% sorghum flour, 25.52% blend of white butter and cottonseed oil (1.5:1.0 w/w) and 9.78% WPC-80 (w/w of chhana) and the desirability of the model was found to be 0.837. The Hardness (N), Cohesiveness, Springiness (mm), Guminess (N) and Chewiness (Nmm) of SCC was found to be 17.48, 0.26, 8.13, 4.28 and 35.02 respectively. The proximate composition of the developed product was: moisture 25.0 %, protein 13.8 %, fat 18.90 %, total carbohydrate 40.60 % and ash 1.68 %. The protein content of SCC was 14.5 % which was 2.9 times higher than commercial cakes.

Physicochemical, microbiological, and organoleptic properties of fermented lamb sausage enhanced by jack bean fortification

Processing lamb meat into fermented sausages can reduce the risk of spoilage and extend shelf life. Fermented sausages are commonly made using lactic acid bacteria (LAB), resulting in a product that is acidic and less firm. Therefore, it is necessary to add jack bean flour as a binding agent. This study aims to analyze physicochemical, microbiological and organoleptic characteristics of premium IPB lamb fermented sausages with varying proportions of jack bean flour (0% and 30%). The analyses included pH, water activity (aw), total acid, water, ash, fat, crude protein, carbohydrate, total LAB, E. coli, S. aureus, texture profile analysis (TPA), and sensory evaluation. The incorporation of jack bean flour into lamb meat fermented sausages can elevate the pH, springiness, chewiness, crude protein, and carbohydrate content of the fermented sausages. Furthermore, the addition of jack bean flour may reduce the total acid, aw, gumminess, water content, and bacteria (E. coli and S. aureus). The sensory aspects such as color in fermented sausage with addition of jack bean flour were preferred by the panelists. The addition of jack bean flour increased the total unsaturated fatty acids and essential amino acids in fermented sausages. The incorporation of jack bean flour aligns with the Indonesian National Standards for Meat Sausages 3820–2015 concerning moisture, fat, and protein content. This study suggests that incorporating lamb fermented sausage with 30% jack bean flour could result in significant benefits, including increased nutrition, enhanced sensory quality, improved texture, and extended storage life for fresh lamb products.

Karakteristik Sensori dan Fisikokimia Kukis dari Campuran Tepung Mocaf dan Tepung Kulit Buah Naga

To support the goal of zero waste outlined in the sustainable development goals (SDGs), repurposing dragon fruit peel waste presents a promising opportunity. In Indonesia, the high demand for dragon fruit leads to the generation of considerable organic waste. This study explored the use of dragon fruit peel flour, combined with modified cassava (mocaf) flour, as a wheat flour alternative to improve the sensory and chemical properties of gluten-free cookies. The research involved preparing the flours and cookies, followed by conducting sensory, physical, and chemical analyses. A completely randomized design (CRD) was employed, testing five formulations with varying ratios of mocaf flour to dragon fruit peel flour. The results indicated that 73% of panelists preferred the crispiness of cookies containing 25% dragon fruit peel flour, while 60% were satisfied with the color of cookies containing 45% dragon fruit peel flour. Physical analysis showed no significant differences in thickness or bake loss, but there were notable differences in diameter, spread ratio, and color. As the proportion of dragon fruit peel flour increased, the cookies showed significant improvements in chemical characteristics, including higher levels of moisture, ash, fat, protein, and fiber content. Additionally, the content of total phenolics and antioxidant activity increased with higher ratios of dragon fruit peel flour, reaching 1.14 mg GAE/g for total phenolics and 662.64 mg AAE/g for antioxidant activity. FTIR analysis revealed a consistent absorbance pattern across samples, with minor variations in peak intensities at specific wavenumbers. Based on the sensory, physical, and chemical evaluations, cookies containing 45% dragon fruit peel flour were recommended for production.

The Effect of Mocaf Flour and Yellow Pumpkin Flour (Cucurbita Moschata) Proportion on the Acceptability and Physicochemical Quality of Wet MI

Overcoming dependence on wheat flour as raw material, researchers want to develop a wet noodle product by using mocaf flour to substitute wheat flour and adding pumpkin flour to increase the nutritional value of wet noodles, namely potassium minerals as an alternative main food that can help lower blood pressure in hypertension sufferers.To determine the effect of the proportion of mocaf flour and pumpkin flour on the physicochemical quality of wet noodles. This type of research uses an experimental study design with a Completely Randomized Design (CRD). The comparison of the proportions of mocaf flour and pumpkin flour is P0 (100g : 0g), P1 (95g : 5g), P2 (90g :10g), P3 (85 g :15g), P4 (80g :20g). Physical quality and chemical quality test data were analyzed using the Independent T-test. The research results show that the percent water absorption capacity; percent elongation; potassium levels; and sodium levels, namely P0 (58.5% ; 19.8% ; 16.5mg/100 g; 5.64 mg/100g), P2 (70.3% ; 8.8% ; 55.95 mg/100g ; 5.55 mg/100g). The best treatment P2 does not meet the adult RDA percentage and cannot be classified as high in potassium. Wet noodle products cannot yet be used as an alternative to foods high in potassium for preventing hypertension.

The Chemical and Rheological Properties of Corn Extrudates Enriched with Zn- and Se-Fortified Wheat Flour

This paper analyzed the influence of the addition of Zn- and Se-fortified wheat flour to corn extrudates on viscosity, total starch content, starch damage, and bioavailability of zinc and selenium. Fortified wheat flour was added to corn grits in 90:10, 80:20, 70:30, and 60:40 ratios at three extrusion temperature profiles: 140/170/170 °C, 150/180/180 °C, and 160/190/190 °C. Viscosity values decreased significantly at different extrusion temperature profiles and at different proportions of wheat. The extrusion process increased the starch content, regardless of the extrusion temperature, and decreased it by adding different proportions of flour enriched with zinc and selenium. The starch damage increased with extrusion, without significant changes with extrusion temperature increment. The addition of different proportions of Zn- and Se-fortified wheat flour reduced starch damage values proportionally to the added content of enriched wheat. Increasing the temperature and the proportions, the total zinc content in the extrudates increased. Zinc bioavailability increased with increasing extrusion temperature. As for selenium, the total content increased by proportion increment but decreased with an increase in the extrusion temperature, though there were no significant differences in selenium bioavailability regardless of changes in extrusion temperature or the proportion of enriched wheat.

Development and characterisation of gluten‐free fresh pasta using teff, rice, and buckwheat flours enhanced with thermal waters: a mixture design approach

SummaryTo meet the demand for gluten‐free (GF) products, this study developed artisanal fresh pasta using teff, rice, and buckwheat flours, enhanced with mineral‐rich thermal waters (TW). A mixture design approach optimised flour proportions to balance texture, cooking time, water absorption, and cooking loss, along with functional properties such as total phenolic compounds (TPC) and antioxidant activity. Two promising formulations were identified: 36.3 g buckwheat, 9.35 g rice, and 9.35 g teff; and 27.5 g teff and 27.5 g buckwheat. These formulations, with and without TW, were evaluated for chemical, technological, microbiological, and functional attributes. The pasta had satisfactory technological properties, macronutrient levels comparable to standard pasta, and was rich in phenolic compounds with antioxidant activity. Ca, Zn, Fe, K, and Mn were predominant, although TW incorporation did not significantly affect their levels in the samples. All formulations showed microbiological stability for at least 3 days at 4 °C.

Structure–property correlation assessment of LLDPE‐based biocomposites with Azadirachta Indica wood flour

AbstractThis research explores the development of new composite material by integrating Azadirachta Indica (AI) with LLDPE to create wood‐plastic composites using the rotational molding process. By examining various proportions of AI wood flour blended with LLDPE, we investigated their impact on mechanical and physical properties. Our tests elucidate a clear correlation between mechanical properties and composite morphologies. Despite identical molding conditions, higher wood particle concentrations reduced mechanical properties compared to lower concentrations. Remarkably, a 12% wood content emerges as optimal, yielding a tensile modulus of 3.69 MPa and a flexural modulus of 468.5 MPa, with an acceptable reduction of 11% density and 13% porosity versus pure LLDPE. Additionally, we observed declines in tensile strength, impact strength, and hardness by up to 23%, 62%, and 11%, respectively, compared to neat LLDPE. Natural fillers enhance aesthetics, making these materials ideal for consumer products like garden equipment and furniture accessories.

Formulation of nutritious and functional meal-based biscuits from mixture of soybean, papaya fruit pulp, and baobab fruit pulp flours

Background and objectiveThe current trend in the formulation of convenience foods like biscuits is directed towards using local ingredients endowed with health benefits effects. The present study aimed at valorizing local crops and fruits as substitutes for wheat flour (WF) and sugar in the formulation of healthy, nutritious and functional meal-based biscuits. MethodsSoybean (Glycine max L.), papaya fruit pulp (Carica papaya L.) and baobab fruit pulp (Adansonia digitata L.) flours were produced, characterized, and used to formulate biscuits following a simplex centroid mixing design. The physicochemical, microbiological, sensory and antioxidant properties of the biscuits were assessed. ResultsThe results showed that protein and lipid contents of the biscuits increased significantly (p < 0.05) with the proportion of soybean flour (SF) in the formulation. The significant increase (p < 0.05) in the mineral content of the biscuits was proportional to the incorporation of papaya fruit pulp (PFPF) and baobab fruit pulp (BFPF) flours in the formulation. The energetic value of the formulated biscuits was higher than those made with 100 % WF. The incorporation of SF and BFPF contributed to a significant increase (p < 0.05) in the crude fibres’ content of biscuits. Biscuits made with SF, PFPF and BFPF were safe for human consumption. They were accepted by the panelists; rich in bioactive compounds (total phenolic, flavonoids), and displayed high antioxidant activities. The optimization procedure revealed that the optimum formulation (with the highest desirability of 0.81) was WF 25 g, SF 51.86 g, PFPF 8.06 g and BFPF 15.06 g ConclusionThis study indicates that baobab fruit pulp, papaya fruit pulp and soybean flours can be used as a substitute for WF in the formulation of functional biscuits. Significance of the researchThis study suggests that the formulated meal-based biscuits might have the potential to be used to fight/prevent malnutrition and cardiometabolic diseases, and to boost the immune system while reducing the dependence on wheat.

The impact of dietary fibers on the construction and molecular network of extrusion-based 3D-printed chicken noodles: Unlocking the potential of specialized functional food

3D printing technology is promising in creating specialized functional foods, such as high-protein and high dietary fiber noodles. In this study, chicken breast-based noodles with varying proportions of oat bran and konjac flour were developed. The research analyzed the physicochemical, digestive properties, and 3D printability of these chicken-based doughs and noodles. The results indicated that the inclusion of fiber-rich flours notably enhanced dough viscosity and viscoelasticity. However, exceeding 4 % konjac flour negatively affected cooking quality and texture due to its strong water absorption capacity. The experimental group with fiber-rich flours exhibited prolonged starch/protein digestion time compared to the Control group. The increased ability to bind water in the fiber rich formula likely restricted water mobility, affecting mass transition in the “water channel”. Notably, chicken noodles fortified with 6 % oat bran and 2 % konjac flour displayed the highest 3D printability. These results offer valuable insights for the industry in selecting appropriate dietary fiber sources for the development of nutritionally balanced 3D-printed meal options.

Characteristics of Healthy Cornflakes (Study of the Proportion of Pre-Cooked White Corn Flour : Pre-Cooked Red Bean Flour and the Proportion of tapioca)

Flakes are a convenient type of food that can be developed to meet the body's nutritional needs. Cornflakes, which have a high starch content, can be combined with protein and fat from red beans and snakehead fish, as well as tapioca as a source of amylopectin that affects the texture of cornflakes. The purpose of this research is to determine the effect of the proportion of white corn flour to red bean flour and the proportion of tapioca. The Randomized Block Design (RBD) method was used with Factor I being the proportion of white corn flour to red bean flour (80:20, 75:25, and 70:30), and Factor II being different proportions of tapioca (5%, 10%, and 15%). The observational data were analyzed using ANOVA and followed by Duncan's test. The best treatment determination was carried out using the De Garmo method. The best cornflakes were obtained with a proportion of 70% pre-cooked white corn flour, 30% pre-cooked red bean flour, and 10% tapioca, resulting in a moisture content of 3.13%, ash content of 2.88%, protein content of 8.26%, carbohydrate content of 80.88%, fat content of 4.90%, starch content of 33.11%, rehydration capacity of 46.54%, and breaking strength of 15.25 N.

Assessment of the quality of bread made from ancient wheat flour with the addition of amaranth, flax and hemp seeds

Consumers are increasingly seeking bakery products with better nutritional value and health benefits. The aim of the research was to assess the quality of bread made from ancient wheat flours (spelt, einkorn, emmer) with the addition of amaranth (Amaranthus cruentus L.), hemp (Cannabis sativa L.) and flax (Linum usitatissimum L.) seeds. The study evaluated bread made using only equal proportions of ancient wheat flours (Group I), and three variants of bread with the addition of amaranth, flax, and hemp seeds with the following proportions: Group II (10%, 5%, 5%, respectively), Group III (10%, 10%, 0%, respectively), Group IV (10%, 0%, 10%, respectively). The assessment of bread quality included: nutritional value (total protein, fat, fatty, amino acids, acid profile, ash, fiber, minerals), caloric value, physical characteristics (baking loss, color, shear force) and evaluation of organoleptic characteristics. It was demonstrated that bread enriched with amaranth, flax, and hemp seeds exhibited increased nutritional value (higher protein content with a favorable amino acid profile, higher fat content, including polyunsaturated fatty acids, and fiber), acceptable sensory attributes, but darker crust color and poorer crumb texture compared to bread without these additives. Among the examined groups, the highest protein and fat content with a favorable composition of fatty acids were observed in bread from Group IV. Group III bread had the highest hardness and fiber content and fiber content. On the other hand, bread from Group II received the best evaluation in terms of taste, aroma, as well as crust thickness.

Fermented Unripe Banana Flour Utilization as a Functional Ingredient in Biscuits.

To prevent losses before consumption due to the rapid ripening of bananas, turning unripe bananas into flour and using it in bakery products can both enhance the functional properties of the product and transform bananas into a high-value product. In this study, it is aimed to enhance the functional properties of banana flour through fermentation, thereby investigating its potential use in the production of healthy snack biscuits which are widely consumed, especially by children and busy people. Different proportions (0%, 15%, and 30%) of unripe banana flour (UBF) and fermented unripe banana flour (FUBF) were added to biscuits, evaluating their impact on physical (color, diameter, thickness, spread ratio), textural (hardness), and functional properties (total phenolic content, antioxidant activity, dietary fiber, glycemic index). The effect of FUBF on biscuit spread ratio compared to UBF was positive (p < 0.05). The addition of UBF or FUBF significantly increased total phenolic content (TPC) and antioxidant activity (p < 0.05), with the highest TPC (1167.88mg GAE/kg) observed in biscuits containing 30% FUBF (p < 0.05). Fermentation showed no significant effect on antioxidant activity of samples (p > 0.05). The glycemic index (GI) values were notably high across all samples, with the control at 78.59 and the 30% FUBF sample at 72.74 (p < 0.05), indicating all samples fell into the high GI food category. Biscuit hardness decreased significantly with UBF or FUBF addition (p < 0.05), while fermentation had no significant impact on hardness (p > 0.05). This study underscores the potential of UBF or FUBF to contribute to healthier snack options with improved functional characteristics.

Enhancing nutritional and functional properties of gluten-free Riceberry rice pasta supplemented with cricket powder using D-optimal mixture design

The study aimed to develop gluten-free Riceberry rice pasta supplemented with cricket powder using a twin-screw extruder, contributing valuable knowledge to increasing the nutritional value of pasta through sustainable practices, nutritional enhancement, and novel ingredients. The D-optimal mixture design, an effective statistical tool for optimizing formulation, was used to determine the optimal proportions of Riceberry rice flour (RF, 75–90%), cricket powder (CP, 5–20%), and xanthan gum (XG, 1–5%). The results showed that all predictive models were statistically significant with satisfactory coefficients of determination (R2 ≥ 0.75), and exhibited a non-significant lack of fit. The contour plot demonstrated that pasta with high RF, XG, and low CP contents had the lowest L* and highest a* values. The incorporation of XG increased firmness, while an increase in CP led to higher protein and fat contents in the pasta. A decrease in RF resulted in reduced total phenolic content (TPC), anthocyanin content (ATC), and 1,1-diphenyl-2-picrylhydrazyl radical (DPPH) scavenging activity (AOA). The sensory evaluation scores of the pasta, in terms of the texture attribute and overall acceptance, decreased as the proportion of XG increased. The optimization analysis showed that the highest desirability was achieved with RF, CP, and XG at 84.10, 14.45, and 1.45%, respectively. The optimally desirable product had the following properties: L* at 22.60, a* at 4.80, b* at 4.78, firmness at 3.41 N, protein content at 12.57%, fat content at 4.68%, TPC at 360.13 mg GAE/100 g dw, ATC at 476.24 mg C3G/100 g dw, AOA at 25.10 mg TE/100 g dw, texture rating at 7.40, and overall acceptance rating at 7.01. This study highlights the potential of cricket powder as a protein source in gluten-free Riceberry rice pasta. It offers insights into the effects of ingredients on pasta quality and facilitates the development of nutritious and appealing gluten-free pasta.

Effect of Chickpea (Cicer arietinum L.) Flour Incorporation on Quality, Antioxidant Properties, and Bioactive Compounds of Shortbread Cookies.

High nutritional value and antioxidant properties make chickpea flour a valuable substitute for wheat flour, although its texture-forming abilities are different. The aim of this study was to investigate the possibility of increasing the content of bioactive compounds and antioxidant properties of shortbread cookies by simple partial or complete replacement of wheat flour with chickpea flour without considerable changes in texture, color, sensory properties, or acceptability. Shortbread cookies were made from wheat flour (0% of chickpea flour), wheat flour and chickpea flour (replacement of 25%, 50%, and 75%), and chickpea flour (100%). Generally, the increase in chickpea flour share resulted in an increase in protein, fat, and ash content, as well as antioxidant properties. Polyphenol content, flavonoid content, and antioxidant activities increased three- to sixfold in shortbread cookies containing chickpea flour in comparison to wheat cookies. The level of proteins increased about 50% and the antioxidant properties were three to six times higher than in wheat cookies. Cookies containing up to 75% chickpea flour were assessed as very good or good quality, while only cookies without wheat flour were assessed as sufficient quality. It could be concluded that part of the wheat flour content in shortbread cookies can be replaced by chickpea flour. Application of a 25% proportion of chickpea flour increases physicochemical properties without changes in sensory properties. Sensory quality was up to 75% lower, but antioxidant properties were increased. However, complete replacement of wheat flour in shortbread cookies without changing the recipe resulted in a product of slightly lower sensory quality.

Towards the establishment of a green and sustainable analytical methodology for hyperspectral imaging-based authentication of wholemeal bread

The increased interest in whole-grain products, along non unified European regulations on the composition of wholemeal bread could lead to its misleading labelling. Therefore, to ensure the safety of consumers, both health-wise and from possible fraud, a novel hyperspectral imaging-based authentication method is being proposed, given that no previous study has combined imaging techniques with authentication of wholemeal flour content. Quantification based on pixel counting by classification (QPC) utilizes multivariate analysis methods such as PLS-DA and SVM to classify pixels within a bread sample (as Wholemeal and White flour), based on their visible-near-infrared spectra, to later estimate its proportion of wholemeal flour. This is in accordance with the heterogeneous nature of bread samples, in which individual pixels belonging to both wholemeal and white flour can be accounted for, which was proved by implementing unsupervised training techniques such as hierarchical cluster analysis (HCA). Results show that the quantification model was able to successfully predict wholemeal flour content with a maximum deviation of 8 g wholemeal flour/100 g flour from the estimated value.

The Effect of Different Stabilizers on the Characteristics of Gluten-Free Dried Noodle from Arrowroot and Mung bean Flour

Dry noodles are one of the foods made from wheat flour. The availability of wheat in Indonesia does not match consumer demand, necessitating the use of alternative ingredients such as arrowroot flour and mung bean flour. The use of stabilizers like CMC, STPP, and Xanthan Gum is needed to improve the characteristics of dry noodles. This research aims to determine the effect of the proportion of arrowroot flour and mung bean flour with different types of stabilizers on the physicochemical and organoleptic characteristics of dry noodles. The experimental design used was a factorial CRD with two factors. Factor I was the proportion of arrowroot flour and mung bean flour and Factor II was the addition of different types of stabilizers. Data were analyzed using 5% ANOVA and 5% DMRT. There was a significant interaction (p≤0.05) on the moisture content, ash, protein, fat, starch, rehydration capacity, cooking loss, elasticity, and organoleptic characteristics of aroma, texture, and overall appearance. There were no significant differences in the organoleptic characteristics of color and taste. The best treatment was the proportion of arrowroot flour and mung bean flour (60:40) with the addition of CMC stabilizer, which resulted in dry noodles with the following characteristics: moisture 11.392%, ash 1.919%, protein 11.592%, fat 1.378%, starch 54.720%, rehydration capacity 110.266%, cooking loss 6.398%, elasticity 0.314 N, aroma 4.200, color 4.040, taste 3.800, texture 4.200, and overall appearance 4.160.

Characteristics of Flakes from Kepok Banana Flour and Black Rice Flour with Variation of Steaming Time

This research has the objective to determine the effect of flour rasio kepok banana and black rice Black rice flour with variations in steaming time on physicochemical characteristics of flakes. This research used a randomized design Complete (RAL) factorial pattern with two factors and two replications. The first factor is thr proportion of kepok banana flour: black rice flour (30%: 70%, 40% : 60% and 50%:50%) and the second factor is the length of steaming time (10 minutes, 15 minutes, 20 mintes minutes). The data obtained was analyzed using ANOVA and followed by Duncan Multiple Range Te. Multiple Range Test (DMRT) at the 5% level. The results of the research showed that there There was interaction. There was a significant difference between the treatments of kepok banana flour: black rice flour on moisture content, starch content and water absorption. The best treatment is Banana flour : black rice flour on moisture content, starch content and water absorption. The best treatment is flakes with a proportion of 50% kepok banana flour and 50% black rice flour and a steaming time of 10 minutes produced flakes with characteristics of the value value of water content 4.77%, ash content 2.12%, fat content 8.35%, content protein 5. 5 5,56% starch content 78.01% water absorption 24.96%, hardness 414.57N and dietary Fiber content of 5.22 %, calcium content of 169.89mg/100g and the average of favorability favorability scores for taste (3.83), color (4.80), aroma (4.20) and textire (3.37)

Enhancing Wheat Bread Nutrient Content with Orange Flesh Sweet Potato and Chickpea Flour

Bread is crucial for food security in Ethiopia, tackling protein malnutrition and vitamin A deficiency. To reduce reliance on imported wheat, supplementing wheat flour with local raw materials is essential. Therefore, this study aims to investigates blending ratio of chickpea and OFSP flour with wheat at different baking temperatures to prepare nutritionally enhanced and high-quality bread. The experiment was conducted in a full factorial design with two factors: flour blending ratio (80:10:10, 70:15:15, 60:20:20, 50:20:30 for wheat, chickpea, and OFSP respectively, and a control of 100% wheat flour) and baking temperatures (180°C, 200°C, and 220°C). The study analyzed the proximate composition of flour and bread, including moisture, ash, protein, fat, fiber, carbohydrates, and β-carotene, while also evaluating the bread's physical and organoleptic properties. Data analysis was conducted using SAS software package version 9.4. The proximate composition of bread showed that substituting wheat with chickpea and orange-fleshed sweet potato increased moisture (28.84 to 35.79%), protein (10.85 to 14.59%), fat (0.85 to 2.05%), fiber (1.49 to 1.84%), ash (0.93 to 2.06%), and β-carotene (0 to 8.04 µg/g of bread). However, it decreased carbohydrate (57.66 to 51.81%) and energy content (281.64 to 257.10 Kcal/100g), due to wheat flour high source of carbohydrate and energy. On the contrary, bread loaf weight increased (123.28 to 131.29 g) due to the superior water absorption capacity of chickpea and OFSP flours compared to wheat. However, loaf volume (359.17 to 205.83 cm³) and specific volume (2.91 to 1.58 cm³/g) decreased due to reduced gluten content in wheat flour. As the proportion of chickpea and OFSP flour increased, sensory acceptability ratings on a 7-point scale decreased: color (6.19 to 2.77), texture (5.78 to 2.62), flavor (5.70 to 2.44), and overall acceptability (5.90 to 2.58) of the bread. In conclusion, blending wheat with chickpea and OFSP flour in bread formulations enhances nutritional quality, especially protein and beta-carotene. Utilizing locally underutilized raw materials is a viable alternative for the growing population.

Physicochemical, Dough Volume and Microbial Growth during Leavening of Cassava-heat Composite Dough

This study determined the impact of cassava inclusion on the physiochemical properties, dough volume, and microbial growth kinetics of cassava-wheat composite dough during leavening. A high-quality cassava flour (HQCF) proportions (10%, 20, 30%,40 and 50%) partially substituted the wheat flour for bread dough production were evaluated for pH, titratable acidity, dough volume, and microbial growth kinetics at 1-hour intervals. Overall, the dough volume progressively decreased with cassava inclusion which peaked at 84.00, 80.50, 74, 72.50, and 69.00 in 10%, 20%, 30%, 40%, and 50% cassava-wheat inclusion respectively during leavening. Cassava-wheat composite dough leavened with commercial yeast had the highest gas retention (85.50 cm3), followed by wheat dough co-fermented with amylolytic L. plantarum (AMz5), while cassava dough had the least (66.00 cm3). The 10% cassava-wheat composite dough had a dough volume comparable (p &gt; 0.05) to the 100% wheat dough. The dynamics of dough-specific volume decreased with cassava inclusion in the order of 10% &lt; 20% &lt; 30% &lt; 40% &lt; 50%. The pH decreased from 4.75 to 3.60 in the wheat dough and from 5.30 to 4.50 in the composite dough during proofing. Moreover, the continuous growth of lactic acid bacteria decreased with cassava flour inclusion. Similarly, the baker’s yeast exhibited steady growth in the cassava-wheat composite dough with fermentation. This data indicates that using 10% or 20% cassava flour inclusion will provide dough with the leavening kinetics necessary for acceptable bread production.