Effect of soy flour on nutritional, physicochemical, and sensory characteristics of gluten-free bread

Technological and Nutritional Aspects of Bread Production: An Overview of Current Status and Future Challenges

Bakery products, especially bread, exist in many homes worldwide. One of the main reasons for its high consumption is that the main raw material is wheat, a cereal that can adapt to a wide variety of soils and climates. However, the nutritional quality of this raw material decreases during its industrial processing, decreasing the value of fibers, proteins, and minerals. Therefore, bread has become a product of high interest to increase its nutritional value. Due to the high consumption of bread, this paper provides a general description of the physicochemical and rheological changes of the dough, as well as the sensory properties of bread by incorporating alternative flours such as beans, lentils, and soy (among others). The reviewed data show that alternative flours can improve fiber, macro, and micronutrient content. The high fiber content reduces the quality of the texture of the products. However, new processing steps or cooking protocols, namely flour proportions, temperature, cooking, and fermentation time, can allow adjusting production variables and optimization to potentially overcome the decrease in sensory quality and preserve consumer acceptance.

Gluten-Free Diet and Other Celiac Disease Therapies: Current Understanding and Emerging Strategies

A lifelong gluten-free diet (GFD) is the only treatment for celiac disease and other gluten-related disorders. Nevertheless, strict adherence to the GFD is often challenging due to concerns about social isolation, risk of gluten contaminations, high cost, poor quality and the taste of gluten-free products. Moreover, although the GFD is effective in achieving mucosal healing, it may lead to dietary imbalances due to nutrient deficiencies over a long period of time. To overcome these issues, several gluten-free wheat flours have been developed to create products that closely resemble their gluten-containing counterparts. Furthermore, given the critical importance of adhering to the GFD, it becomes essential to promote adherence and monitor possible voluntary or involuntary transgressions. Various methods, including clinical assessment, questionnaires, serology for celiac disease, duodenal biopsies and the detection of Gluten Immunogenic Peptides (GIPs) are employed for this purpose, but none are considered entirely satisfactory. Since adherence to the GFD poses challenges, alternative therapies should be implemented in the coming years to improve treatment efficacy and the quality of life of patients with celiac disease. The aim of this narrative review is to explore current knowledge of the GFD and investigate its future perspectives, focusing on technology advancements, follow-up strategies and insights into a rapidly changing future.

The influence of carboxymethyl cellulose and hydroxypropyl methylcellulose on physicochemical, texture, and sensory characteristics of gluten-free pancake

In this study, gluten-free pancakes were prepared using rice flour and potato starch at a ratio of 50:50. Due to a lack of gluten networks in these ingredients, the hydrocolloid gums including carboxymethyl cellulose (CMC) at 0.5%, 1%, and 1.5% and hydroxypropyl methylcellulose (HPMC) at 1%, 2%, and 3% were added to improve the quality of the final products. The effects of these hydrocolloid gums on the physicochemical, textural, and sensory properties of the gluten-free pancakes were evaluated. Pancakes prepared with wheat flour were used as a control sample. The results showed that the addition of both gums decreased the hardness and chewiness of the gluten-free pancakes while increasing the springiness and their moisture content. Increasing the concentration of the gums resulted in an L* value (lightness) reduction, which produced a darker crust on the pancakes. Moreover, the gluten-free pancakes containing CMC and HPMC had higher specific volumes than the gluten-free samples made without CMC and HPMC. From a sensory point of view, the samples containing 2%, 3% HPMC and 1% CMC received the highest overall acceptance score. Thus, CMC and HPMC can be used as improvers in gluten-free pancakes.

Comparison of the effect of hydroxyl propyl methyl cellulose, pectin, and concentrated raisin juice on gluten-free bread based on rice and foxtail millet flour

The nutritional and technological challenges of gluten-free (GF) bread have increased the need for its modification due to the growing demand for this product, especially from celiac patients. Therefore, the present study aims at evaluating the influence of hydroxyl propyl methyl cellulose (HPMC) at 1% and 2% levels, pectin at 1.5% and 2.5% levels, and concentrated raisin juice (CRJ) at 3% and 4% levels on the dough rheological properties and quality of GF bread based on rice and millet flour. The GF bread prepared with HPMC and incorporating CRJ had higher water absorption, dough development time, and dough stability. In addition, the firmness of GF bread during 24-72 h after baking in the presence of 1% HPMC with 3% and 4% CRJ followed by 2.5% pectin incorporating 3% and 4% CRJ showed a significant decrease compared to the control sample. Further, the color index of GF bread was improved with the addition of HPMC and pectin and the L* index decreased in all GF breads with CRJ. The highest volume was occupied by bread containing 1% HPMC. The results demonstrated that GF bread could be produced from a mixture of rice and millet flour and its technological quality was improved by using 1% HPMC and 3% CRJ. Therefore, it has the necessary potential for high-scale production and consumption among members of the society.

Composition, functional properties, health benefits and applications of oilseed proteins: A systematic review

Common oilseeds, such as soybean, peanut, rapeseed, sunflower seed, sesame seed and chia seed, are key sources of edible vegetable oils. Their defatted meals are excellent natural sources of plant proteins that can meet consumers' demand for health and sustainable substitutes for animal proteins. Oilseed proteins and their derived peptides are also associated with many health benefits, including weight loss and reduced risks of diabetes, hypertension, metabolic syndrome and cardiovascular events. This review summarizes the current status of knowledge on the protein and amino acid composition of common oilseeds as well as the functional properties, nutrition, health benefits and food applications of oilseed protein. Currently, oilseeds are widely applied in the food industry regarding for their health benefits and good functional properties. However, most oilseed proteins are incomplete proteins and their functional properties are not promising compared to animal proteins. They are also limited in the food industry due to their off-flavor, allergenic and antinutritional factors. These properties can be improved by protein modification. Therefore, in order to make better use of oilseed proteins, methods for improving their nutrition value, bioactive activity, functional and sensory characteristics, as well as the strategies for reducing their allergenicity were also discussed in this paper. Finally, examples for the application of oilseed proteins in the food industry are presented. Limitations and future perspectives for developing oilseed proteins as food ingredients are also pointed out. This review aims to foster thinking and generate novel ideas for future research. It will also provide novel ideas and broad prospects for the application of oilseeds in the food industry.

Assessing Gluten-Free Soy Bread Quality and Amino Acid Content

The nutritional and palatability relevance of bread prepared with soy flour was examined. There are a few effective nutritional measures that combine palatability, convenience, and functionality in the suppression of muscle loss (contributing to the improvement and prevention of sarcopenia). Therefore, in the present study, we attempted to produce bread using soybeans, which are rich in amino acids involved in the synthesis and degradation of skeletal muscle proteins. Rice flour was also used to avoid gluten intolerance. The bread was baked in an automatic bread maker, and the rheological properties of its breadcrumbs were determined using a creep meter. We found that a 70 g slice of soy bread satisfied approximately one-fifth of the daily nutritional requirement for leucine. Although soy decreased the specific volume of bread by preventing starch construction, the use of preprocessed rice flour recovered the volume, and corn starch improved the taste. We propose that the addition of soy bread to the daily diet may be an effective protein source.

Development and Quality Assessment of Biscuits Made from Mixture of Wheat, Soybean, and Sorghum Flour

In most developing nations, there has been an increase in the consumption of wheat-based products, particularly biscuits, due to recent lifestyle changes and rapid urbanization. Due to this, there has been a sudden rise in research into creating flour from locally grown cereals or legumes to satisfy consumer demand. As a result, the potential for making biscuits with sorghum-soy composite flour was investigated. The flour blends and the corresponding biscuit products’ functional and physicochemical characteristics were established. The samples of biscuits’ organoleptic characteristics were also identified. The functional properties of the composite flours decreased while their proximate composition increased, according to the results. As the amount of sorghum-soy flour inclusions increased, the physical characteristics of the biscuit samples decreased. The moisture contents, protein contents, crude fats, ash, crude fibers, and carbohydrates were all within the ranges of 3.11 to 3.80%, 14.80 to 17.66%, 5.07 to 5.51%, 3.65 to 4.94%, 2.66 to 3.64%, and 66.11 to 70.71%, respectively. The sorghum-soy biscuits fared well compared to the wheat-based biscuits and were deemed acceptable. As a result, eating these biscuits will increase people’s nutrient intake, particularly that of children, as well as the utilization of sorghum and soybean in tropical nations.

The use of time domain 1 H NMR to study proton dynamics in starch-rich foods: A review

Starch is a major contributor to the carbohydrate portion of our diet. When it is present with water, it undergoes several transformations during heating and/or cooling making it an essential structure-forming component in starch-rich food systems (e.g., bread and cake). Time domain proton nuclear magnetic resonance (TD ¹ H NMR) is a useful technique to study starch-water interactions by evaluation of molecular mobility and water distribution. The data obtained correspond to changes in starch structure and the state of water during or resulting from processing. When this technique was first applied to starch(-rich) foods, significant challenges were encountered during data interpretation of complex food systems (e.g., cake or biscuit) due to the presence of multiple constituents (proteins, carbohydrates, lipids, etc.). This article discusses the principles of TD ¹ H NMR and the tools applied that improved characterization and interpretation of TD NMR data. More in particular, the major differences in proton distribution of various dough and cooked/baked food systems are examined. The application of variable-temperature TD ¹ H NMR is also discussed as it demonstrates exceptional ability to elucidate the molecular dynamics of starch transitions (e.g., gelatinization, gelation) in dough/batter systems during heating/cooling. In conclusion, TD NMR is considered a valuable tool to understand the behavior of starch and water that relate to the characteristics and/or quality of starchy food products. Such insights are crucial for food product optimization and development in response to the needs of the food industry.

Comparative study of physicochemical, nutritional, phytochemical, and sensory properties of bread with plantain and soy flours partly replacing wheat flour

Plantain flour (PLF) and soy flour (SF) were used to substitute wheat flour (10% and 20% w/w) in composite bread. Physicochemical, phytochemical, and sensory properties were investigated. Partial substitution by PLF significantly increased (p < .05) starch, amylose, ascorbic acid, and potassium content in bread samples. In contrast, a significant improvement (p < .05) in protein, fat, amylopectin, and calcium content was observed with SF substitution. Composite bread with PLF and SF together lowered the hydrolysis index (HI) and glycemic index (GI) as compared with whole wheat flour. The molar phytate to minerals (iron, zinc, and calcium) ratio in all composite loaves was lower than reported critical values, except for phytate to iron. Significant differences (p < .05) were found in color, specific volume, and texture characteristics of loaves made from partial substitution with PLF and SF. Sensory evaluation revealed that bread with 10% PLF exhibited better scores for appearance and willingness to pay than the control. In contrast, SF negatively affected (p < .05) the appearance, texture, color, overall acceptance, and willingness to pay. The trade-off analysis indicated that PLF can be utilized to produce bread that meets consumers' demands, while incorporating SF as an alternative high-nutrient density bread will be beneficial to health.

The compliance of nutrition claims on pita bread in Lebanon and risk on public health: a cross-sectional study

Background

Mislabeling is a type of fraud, that can lead to major health concerns, especially when used on staple foods like bread. This study aimed to assess the compliance of nutrition claims on pre-packaged Pita bread in Mount Lebanon with national (LIBNOR; NL 661:2017) and international (CODEX; CAC/GL -2–1985) standards.

Methods

A cross-sectional study was conducted and Lebanese bread samples (n = 75) were collected from all the registered bakeries in Mount Lebanon directorate (n = 25). The claim compliance assessment was based on values of the nutrition facts panel and standard nutrient analyses, following official methods.

Results

Of all assessed breads, 84% carried nutrition claims, and 25.3% carried health claims. Among nutrition claims, 70.7% had non-addition claims, 56.0% had nutrient content claims, and 1.3% had comparative claims. The results showed a high prevalence of nutrition claims with majority non-compliant. Based on the nutrition facts panel, only 32.4% of the sugar related claims, 45.5% of the fiber claims, and 54.4% of salt claims were eligible to make those statements. Based on the chemical nutrient analyses, only 47.0% of sugar claims, 16.1% of fiber claims, and 37.5% of salt claims were compliant. All the claims related to protein (n = 7) were compliant.

Conclusions

These results suggest the urgent need to develop clear guidelines for the effective implementation of the current standard; in order to prevent mislead consumers from making poor decisions at the point-of-sale, which might affect their overall health and efforts towards proper nutrition.

Effects of Teff-Based Sourdoughs on Dough Rheology and Gluten-Free Bread Quality

Production of gluten-free bread (GFB) with good quality characteristics represents a technological challenge. Our study aimed to obtain nongluten bread from cereals and pseudocereals with applying single cultures of Pediococcus acidilactici, Pediococcus pentosaceus and Enteroccocus durans as sourdoughs. The effect of sourdoughs on the quality traits of gluten-free (GF) dough and GFB was explored. The structural and baking properties of GF dough composed of teff, rice, corn, and sorghum flours were improved by adding xanthan gum (0.6%), guar gum (1.0%) and carboxymethyl cellulose (1.0%). The tested strains reached 10⁸ cfu/g in teff flour and produced sourdoughs with a pleasant lactic aroma. The sourdough-fermented doughs were softer and more elastic compared to control dough and yielded reduced baking loss. Strain Enterococcus durans ensured the best baking characteristics of GF dough and the highest softness of the GFB during storage. Strain Pediococcus pentosaceus had the most pronounced positive effect on aroma, taste and aftertaste. Pan baking was found to be more appropriate to obtain stable shape and good-looking products. A careful starter culture selection is necessary for GFB development since a significant effect of strain specificity on dough rheology and baking characteristics was observed.

Low-Carbohydrate, High-Protein, and Gluten-Free Bread Supplemented with Poppy Seed Flour: Physicochemical, Sensory, and Spectroscopic Properties

BACKGROUND

This study aimed to determine the effect of poppy seed flour (PF) on the physicochemical and spectroscopic properties of low-carbohydrate, high-protein, and gluten-free bread.

METHODS

The changes at the molecular level were assessed in bread using attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR). Bread prepared with buckwheat, flaxseed, and pea protein was enriched with PF at a concentration of 5-15%.

RESULTS

The results showed that the pasting parameters of dough supplemented with PF were significantly decreased compared to the control sample. The obtained bread samples were characterized by good quality and had 14.6% of carbohydrate, 16.3% of protein, 10.2% of fiber, and 4.0% of fat, with a caloric value of 177 kcal/100 g. The addition of PF had little influence on crumb mechanical properties. The ATR-FTIR analyses revealed spectral changes in the region related to protein and carbohydrate structures, as well as changes in band intensity characteristic of α-1,4-glycoside and α-1,6-glycoside bonds. The analyses showed that the main starch skeleton remained clearly visible.

CONCLUSIONS

PF up to 10% can be potentially applied as a functional ingredient in the production of bread based on buckwheat and linseed flour. Such low-carbohydrate bread can be particularly useful to diabetics.

Comparisons of Soybean and Wheat; in the Focus on the Nutritional Aspects and Acute Appetite Sensation

Soybean flour is often used as a gluten-free ingredient. We aimed to compare the nutrients and the difference in satiety of soybean and wheat after ingestion. We measured the amounts of polyphenol and oxygen radical absorbance capacity (ORAC) and examined the acute appetite sensation after the ingestion of soybean powder and bread powder. Japanese women were enrolled in the meal tests. Participants were provided with 18 g of bread or soybean powder, 180 g of yogurt, and 285 mL of bottled water. Subjective satiety (hunger, appetite, satiety, and stomach fullness) was measured using a visual analog scale 120 min after sample ingestion. The polyphenol content and ORAC were 2- and 12-folds higher, respectively, in soybean powder than in bread flour. In the meal tests, the area under the curve (AUC) of satiety 60–120 min after ingestion (n = 44) was significantly higher for soybean powder than bread powder. The AUCs of hunger and appetite 60–120 min after ingestion were significantly lower for soybean powder than bread powder. The effect sizes of hunger and appetite by soybean powder were 0.341 and 0.424, respectively. Thus, these results suggest that soybean is a healthy food and soybeans maintain satiety and suppress hunger more than bread flour.

Technological characteristics of inulin enriched gluten-free bread: Effect of acorn flour replacement and fermentation type

Textural, physicochemical, and sensory characteristics of rice-based gluten-free bread in the presence of acorn flour; inulin and different fermentation type (yeast starter fermentation [Y] or mixed fermentation based on sourdough [MF-SD]) were investigated. Acorn flour was added to replace rice flour at a proportion of 10, 30, and 50% W/W. Furthermore, the mixture flour was replaced by inulin as a functional prebiotic ingredient at 10% W/W. Considering results obtained at this study, using mixed fermentation based on sourdough and inulin at 10% W/W provide the structure able to restore gases through baking process at formulations containing acorn flour at 30% W/W (A30R70SL). The highest specific volume (1.47 ± 0.04 cm3 g-1) and the lowest hardness (40.97 ± 0.87 N) are observed in A30R70SL which seems to be induced by its potential to form gel. Acorn flour substitution level at 50% W/W adversely influenced the technological characteristics of final product and its perception by the consumer. Acorn flour substitution up to 30% W/W is preferred by the consumer which is attributed to its potential role to improve the unpleasant pale color of rice-based gluten-free products. A negatively significant correlation has been observed between the color perception by the consumer and crumb lightness (r = -.493, p ≤ .05).

The effect of Amygdalus scoparia Spach and Lepidium sativum L. seed gums on the properties of formulated food supplement for soldiers using Response Surface Methodology

Today, the lack of a proper nutritional formulation of the diet for soldiers is well felt. In this study, a newly formulated food supplement (FFS) was designed to supply all essential nutrients like protein, carbohydrate, oil, fat-soluble vitamins, and minerals, and Lepidium sativum L. seed (shahi) gum and Amygdalus scoparia Spach (zedo) gum were applied to FFS to promote physicochemical and sensory properties of FFS. The samples were developed by preparing emulsion including meat powder (45.0 g/100 g), soybean powder (25.0 g/100 g), and plant oils (15.0 g/100 g). Iron, zinc, and fat-soluble vitamins (A, D, E, and K) were also added to the formulation, and response surface methodology was used to optimize the effects of shahi and zedo gum at 0.5, 1.0, and 2.0 g/100 g in FFS. The results showed that using hydrocolloids in appropriate amounts enhanced the sensory properties of FFS. Hydrocolloids protected the moisture content of FFS samples and also decreased the reduction of vitamins and minerals during 14 days of storage at 4°C. The hydrocolloids improved the color indices and intrinsic viscosity of samples. The results of this study recommend the use of 1.26 g/100 g of shahi gum and 0.95 g/100 g of zedo gum to produce formulated food supplement for soldiers. This formulation supplies calories and provides some of the essential vitamins and food components to the body.

Physical properties, sensory acceptance, postprandial glycemic response, and satiety of cereal based foods enriched with legume flours: a review

Legumes are rich in proteins and widely consumed around the world. Their consumption has been associated with improved glycemic and lipidemic profile and positive alterations of gut microbiota. These beneficial effects have created a growing scientific interest in the role of legume-enriched foods on the promotion of human health. The aim of this review was to critically record the studies examining the nutritional value and textural properties of these products, as well as their efficacy on lowering postprandial glucose response and satiety. Reviewed data have shown that cereal products with high nutritional value are formulated when fortified with legume flours. The postprandial glucose response appears to be ameliorated and the enriched foods have a medium or a low glycemic index, however not enough data are presented referring to the appetite hormones responses. Textural properties are affected by the addition of legumes and occasionally, when substitution level is high, the final product has not acceptable odor and appearance. To overcome this barrier, particular food processes such as fermentation, extrusion and addition of hydrocolloids, are used and have shown great results on the textural and sensory properties of the final products. The development of healthy legume-enriched cereal-based products is of great importance for the increase of legume consumption and the promotion of public health.

Effect of potato peel, pumpkin seed, and quinoa flours on sensory and chemical characteristics of gluten-free breads

Abstract Celiac disease is characterized by the body’s inability to digest gluten in the small intestine, and the dietary treatment consists of avoiding foods that contain this protein. Potato peel, pumpkin seeds, and quinoa are ingredients that can be used to produce gluten-free bread. The aim of this work was to evaluate chemical and sensory characteristics of gluten-free breads consisting of the idea to compare both made with traditional ingredients and with the addition of Potato Peel Flour (PPF), Pumpkin Seed Flour (PSF), and Quinoa Flour (QF). Sensory analysis of the prepared gluten-free breads and chemical analysis of the alternative flours were performed, as well as the formulations developed. The bread formulation with traditional flours and starches that obtained the highest acceptance in the sensory evaluation was used as a base to prepare three bread formulations, with 2.5%, 5.0%, and 7.5% of each alternative flours. Regarding the chemical analysis of the flours, carbohydrate concentrations of PPF and QF did not differ statistically. Lipid, protein, and ash levels in PSF were significantly higher than those in the other flours. Carbohydrate, ash, and lipid contents of the three formulations made with alternative flours showed no significant differences. The formulation with 5.0% of the alternative flours had higher sensory acceptance. The results showed that the alternative flours used are viable alternatives for the production of gluten-free breads, making it possible to improve the diet of part of the population with celiac disease by increasing the nutritional contents of minerals, lipids, and proteins.

National School Lunch Nutrition and Cost Profile: A Case Study of the Ghana School Feeding Programme

Numerous governments in developing countries institute school lunch programs or school feeding programs as a strategy to address high malnutrition and low education rates among children. In 2005, the Ghanaian government launched the Ghana School Feeding Programme (GSFP). The GSFP policy does not document (1) the actual meal and associated nutrient profile received by the student, (2) the cost of the meal ingredients to the caterer who prepares the food, nor (3) the recipe derivations that may supply an enhanced nutritional profile. We address these 3 information gaps by employing a detailed case study of 4 caterers supplying a traditional tomato stew recipe in northern Ghana within GSFP-supported school lunch programs. Specifically, we explore the following propositions: (1) GSFP caterers can deliver a school lunch for under 100 pesewas (1 GH¢ or $0.21 USD) per student; (2) the meal meets the recommended daily allowance for protein; (3) soy can serve as a cost-effective ingredient to fortify the meal in terms of protein level and protein quality; and (4) significant differences exist in the macro- and micronutrient profile due to caterer discretion. We answer the above 4 propositions, and by doing so show the importance of accurately measuring the nutritional content, costs, and quantities of the actual school lunch under study. Second, among our results, we show the economy of locally produced soy flour as an ingredient that can lower costs and raise nutrition when substituting for other locally produced proteins such as ground beef and mackerel.

Gluten-Free Products for Celiac Susceptible People

The gluten protein of wheat triggers an immunological reaction in some gluten-sensitive people with HLA-DQ2/8 genotypes, which leads to Celiac disease (CD) with symptomatic damage in the small intestinal villi. Glutenin and gliadin are two major components of gluten that are essentially required for developing a strong protein network for providing desired viscoelasticity of dough. Many non-gluten cereals and starches (rice, corn, sorghum, millets, and potato/pea starch) and various gluten replacers (xanthan and guar gum) have been used for retaining the physical-sensorial properties of gluten-free, cereal-based products. This paper reviews the recent advances in the formulation of cereal-based, gluten-free products by utilizing alternate flours, starches, gums, hydrocolloids, enzymes, novel ingredients, and processing techniques. The pseudo cereals amaranth, quinoa, and buckwheat, are promising in gluten-free diet formulation. Genetically-modified wheat is another promising area of research, where successful attempts have been made to silence the gliadin gene of wheat using RNAi techniques. The requirement of quantity and quality for gluten-free packaged foods is increasing consistently at a faster rate than lactose-free and diabetic-friendly foods. More research needs to be focused on cereal-based, gluten-free beverages to provide additional options for CD sufferers.

Effects of pulses and microalgal proteins on quality traits of beef patties

Physicochemical parameters (pH, colour and texture), proximate composition (moisture, protein, lipid and ash content), amino acid content, and taste profile of beef patties elaborated with soy (control), pulses (pea, lentil and bean) and microalgal (Chlorella and Spirulina) proteins were assessed. The pH, colour, ash content, total, essential and non-essential amino acids and amino acid content were significantly different among the beef patties studied. In this regard, beef patties prepared with pea protein presented the highest values for pH; whereas beef patties manufactured with pea also showed the highest values for lightness and patties elaborated with bean the highest values for redness. Similar textural parameters were observed among the six batches of beef patties manufactured. Regarding ash content, a significant higher content was observed in the beef patties prepared with soy compared to the other ones. On the other hand, the beef patties elaborated with bean and seaweeds showed the highest values for the total amino acids content. The inclusion of bean and seaweed proteins increased the concentrations of all amino acids in beef patties, being glutamic acids, lysine and aspartic acid the predominant amino acids. Regarding the taste analysis, a similar profile was found among the six batches of beef patties studied. Considering all studied parameters, beef patties elaborated with bean protein could be used as an alternative protein source respect to soy protein because of it showed a similar nutritional content and taste profile and higher amino acid content.

Effect of incorporation of soy flour on functional, nutritional, and sensory properties of mushroom-moringa-supplemented healthy soup

The research study was conducted to evaluate the effect of soy flour on functional, nutritional, and sensory properties of mushroom–moringa‐supplemented soup which could be used as a protein‐supplemented ready‐to‐eat food. In this study, corn flour was supplemented with soy flour at different levels such as 20% (T4), 15% (T3), 10% (T2), and 5% (T1), and without soy flour was kept as control (T0). Fixed amount of mushroom and moringa leaf powder was added in all soup powders. Soup powders were analyzed for functional, nutritional, and sensory parameters. Bulk density (0.82–0.74 g/ml), dispersibility (82.1%–75.9%), pH (6.17–6.13), swelling capacity (3.98–3.65 ml/g), and viscosity were decreased, while water absorption capacity (70%–94%) was increased with increasing of soy flour percentages. Protein content of all the treatment groups increased from 10.66% to 19.97% along with a significant increased in fat (1.43%–6.97%), fiber (1.10%–2.30%), ash (15.77%–16.40%), and energy value (328.38–353.21 kcal/100 g) while decreased in moisture and carbohydrate content. On sensory evaluation, soup powders with 10% (T2) level of soy flour incorporation had highest scores for all the sensory attributes evaluated. Based on these results, it can be concluded that soy flour has effect on functional, nutritional, and sensory properties of soup powders and 10% supplementation of soy flour is suitable for ready‐to‐eat soup formulation. Besides these, use of mushroom and moringa leaf may also increase its nutritional value. Soup developed in this way may be sufficient to meet day‐to‐day nutritional requirements as a supplement.

Effect of soy flour on nutritional, physicochemical, and sensory characteristics of gluten-free bread

The aim of this study was to assess the effect of soy flour on nutritional, physicochemical, and sensory characteristics of gluten‐free (GF) bread. In this study, corn flour was replaced with soy flour at different levels 5%, 10%, and 15% to produce a more nutritionally balanced GF bread. Physical and chemical properties, sensory evaluation and crust and crumb color were measured in bread samples. The results of evaluations showed that protein content of soy flour‐supplemented GF bread significantly increased from 9.8% to 12.9% as compared to control along with an increased in fat (3.3%–4.1%), fiber (0.29%– 0.38%), and ash (1.7%–2.2%) content. Moisture (27.9%–26.5%) and carbohydrate (58.3–52.3) content decreased with the incremental addition of soybean flour. The highest total score of sensory evaluation was for the bread sample containing 15% soybean flour. The evaluation of crust and crumb showed that bread samples with 15% soy flour were significantly darker than the other bread samples. In conclusion, adding higher levels of soybean flour into GF bread can improve bread quality, sensory characteristics, and nutritional properties of bread. Nutritional status in patients with celiac disease (CD) can be improved through the produce GF bread in this way.