Partial Substitution Of Wheat Flour Research Articles

Potential use of hazelnut (Corylus avellana L.) shell powder in muffin production by partial substitution of wheat flour: Color, bioactive, textural, and sensory properties

In this study, different muffin samples were produced by substituting 0, 5, and 10% (w:w) hazelnut shell powder (HSP) into wheat flour and their color, bioactive, textural and sensory properties were determined. The results showed that both total phenolic content and DPPH radical scavenging activity did not change with the addition of HSP to the muffin formulation. Upon enrichment of muffins with HSP, L* and b* color values of muffins decreased in both crumb and crust, while a* values increased in crumb and decreased in crust. The more HSP used in the muffins, the more visible pore formation was determined. Textural analysis revealed that hardness, gumminess, chewiness values decreased while the springiness, cohesiveness and resilience values increased as the amount of HSP increased in the muffin formulation. The partial substitution of wheat flour with 5% (w:w) HSP received the highest crust, crumb, chewiness, taste/aroma and overall acceptability scores by the panelists. Overall, HSPs, which are a waste and by-product of hazelnut processing, can be successfully used in fiber-rich muffin production, both expanding their potential areas of use and contributing to their economic value.

Sustitución parcial de harina de trigo por almidón modificado de zanahoria blanca (Arracacha xanthorrhiza) en la elaboración de noodles bajo en gluten

Noodles are currently highly consumed products, which are commonly made with wheat flour, since it is one of the most produced grains worldwide; however, the gluten content in its composition can affect the health of consumers. It is a great challenge for the industry to produce foods low in gluten. The aim of this research was to evaluate the partial substitution of wheat flour by modified white carrot starch (A. xanthorrhiza) in the preparation of noodles. A completely randomized design with factorial arrangement A*B+1 was used to evaluate the chemical characteristics of starch (native and chemically modified) and the physicochemical, rheological and sensory characteristics of the noodles. It was observed that total starch and amylopectin content decreased significantly when starch was chemically modified, while amylose increased considerably. On the other hand, using 100% wheat flour presented higher moisture (10.14%); ash (0.70%); protein (14.44%) and gluten (14.44%); while, when using 100% modified starch of the two ecotypes, low levels of gluten were obtained (0.001). In relation to the rheological characteristics, 25% and 50% modified starch of both ecotypes allowed obtaining similar results to the control treatment. Finally, it was demonstrated that the addition of 75% modified starch of ecotype ECU 18989 gave the best intensities of odor (4.95), flavor (4.95), aftertaste (6.05) and firmness (6.65).

Investigating potato flour processing methods and ratios for noodle production

AbstractA partial substitution of wheat flour with potato flour processed by various procedures was used to determine an optimal potato pretreatment method for noodle processing. Wheat flour was substituted with 10%, 30%, and 50% potato flour. Potato flour (PF) was processed using two different methods, including freeze‐drying (FD) and low‐temperature blanching, then oven drying (LTB_OD). The results showed that substituting wheat flour with freeze‐dried (FD) flour (44.29 μm) significantly decreased the mean particle size of the blended flour, while LTB_OD flour (223.09 μm) increased the mean particle size. The pasting properties of wheat flour significantly improved when potato flour was added, with FD flour blends having the highest results. The highest dough development time (14.46 min) was attained when LTB_OD potato flour was substituted up to 50%. The microstructure images showed a poor and discontinuous gluten framework when potato flour content reached 50%. Adding potato flour decreased noodles' brightness (L*) while increasing their yellowness (b*). Noodles made from wheat and LTB_OD flour blends resulted in the highest cooking loss. The texture properties of noodles deteriorated when potato flour content reached 30%. Substituting up to 30% with freeze‐dried flour and 10% LTB_OD resulted in noodles with the highest overall liking scores. The study suggests that for optimal noodle processing, substituting wheat flour with FD potato flour is more favorable than using LTB_OD, as it improves particle size, pasting properties, and overall liking scores while minimizing adverse effects on texture and cooking loss.

Improving the Rheological Properties of Dough Obtained by Partial Substitution of Wheat Flour with Freeze-Dried Olive Pomace

Mediterranean countries are known for their high-quality olives and the production and consumption of olive oil. Olive pomace (OP), the major by-product of olive oil extraction, is receiving attention for its potential as a functional compound in food products, reflecting its physiology- and health-promoting attributes. This study assessed the physico-chemical characteristics of OP obtained from two Sardinian olive cultivars, Bosana and Semidana, and the effect of OP incorporation on the baking performance of wheat dough. We assessed the rheological parameters, pasting profile, and fermentation of doughs obtained through the partial substitution of wheat flour with OP at 0 (control), 1, 2, 3, and 5%. OP inclusion resulted in significant differences in the studied parameters compared with control samples. Positive effects included a decrease in development time, improved dough stability and storage, and superior loss modulus and gas retention capacity. Negative effects comprised an increase in dough resistance and a decrease in dough development height, gas production, gas retention, pasting profile, stickiness, and elasticity. These differences in the OP dough were due to the interactions between polyphenols and fibre with water and the starch–gluten matrix. This study found improvements in dough characteristics following the substitution of wheat flour with low percentages of OP, especially Semidana at 1%. Although higher percentages of OP would be associated with greater nutritional and health benefits, they resulted in a degradation of the dough’s attributes, producing a gluten-free-like matrix in the final product.

Sensory evaluation of biscuits resulting from partial substitution of wheat flour with spent grain from three varieties (Bakor, Kponan and Lokpa) of Dioscorea cayenensis-rotundata complex cultivated in Brobo (Centern, Ivory Coast)

The aim of this study is to valorize yam spent grain obtained after extraction of starch in biscuit production. After extracting the starch from three varieties (Bakor, Kponan and Lokpa) of Dioscorea cayenensis-rotundata, the spent grains were dried at 45°C for 48 h then crushed and the flours were incorporated into the wheat (Triticum aestivum) flour at 5 and 10%. The physicochemical and functional properties of formulated flours were determined as well as the sensory characteristics of the biscuits produced. The results of the physicochemical properties of the formulations reveal moisture, fiber and carbohydrate levels varying respectively from 11.82±0.04 to 11.99±0.0; 1.84±0.01 to 2.35±0.03 and from 76.71±0.02 to 76.88±0.06. The formulated flours have appreciable functional properties in terms of water absorption capacity (83.32±0.32 - 87.78±0.40 g), water absorption capacity (126.29± 0.48 – 148.73±0.58 g) and inflation capacity (8.83±0.12 – 10.64±0.23 g). On the sensory level, the results showed that biscuits produced with 5% incorporation are the most appreciated. In order to contribute to food security, yam spent flours can be incorporated at a rate of 5%, thereby reducing wheat flour by 5%.

Production of cookies with partial substitution of wheat flour for pole bean and castilla bean flour

Background: The substitution of flours was proposed to determine which is more suitable for cookie production, utilizing the processing of pole and castilla beans. Methods: A randomized design (DCA) was used to create 8 treatments and a control, applying substitution percentages of 10%, 20%, 30%, and 40%. Treatments were sensorially evaluated by a panel of 30 untrained judges, followed by statistical analysis. Results: The treatment containing 40% castilla bean flour and 60% wheat flour was best rated with the following means: 3.70 in color, 3.70 in aroma, 3.77 in taste, and 3.83 in texture. Physicochemical tests resulted in carbohydrate content of 53.81%, ash content of 0.93%, fiber content of 1.90%, fat content of 23.15%, moisture content of 10.03%, protein content of 12.08%, and a pH of 6.74. The product did not exceed the maximum limits set by the INEN 2085 standard. Conclusions: It was identified that the combination of castilla bean and wheat flour is beneficial for enhancing the nutritional contribution in cookie production, rendering them suitable for human consumption.

Partial Substitution of Wheat Flour with Heat-Moisture Treated Porang Flour Affected Physicochemical and Organoleptic Characteristics of Pan Bread Prepared with Sponge-Dough Method

Pan bread using wheat flour is one of primary staple foods; however, Indonesia imports wheat in large amount. Local crops utilized as flour stocks e.g. porang (Amorphophallus muelleri B.) may reduce imported wheat dependency. Nevertheless, due to porang-flour low solubility and swelling power, modification is needed. The research objectives were to determine effect of heat-moisture treatment (HMT) temperature and time on swelling power, solubility, and lightness of porang flour, to select best treatment, and to determine effect of substitution ratios on physicochemical and organoleptic characteristics of sponge-dough pan bread. Porang flour modification was done with HMT (70, 80, 90°C; 6, 8, 10 h) resulted in increased solubility and swelling power in some cases. Modification at 80°C; 10 hrs exhibited highest swelling power (8.05±0.58g/g); thus, was selected for pan-bread making. Pan bread was prepared with ratios: 95:5, 90:10, 85:15, 80:20, 75:25, 70:30 (wheat flour:modified porang flour). Pan bread (90:10 ratio) exhibited similar volume (887.5±40.59cc) and hardness (824.364±52.30g) to control, and comparable hedonic overall acceptance. Pan bread with partial substitution of wheat flour with modified porang flour, exhibited increased in some proximate compositions but decreased in protein and carbohydrate. Pan bread with 10% substitution could be a future alternative in pan-bread production.

USE OF PASSION FRUIT PEEL FLOUR IN THE MANUFACTURING OF LOAF BREAD

Brazil is the largest worldwide Passiflora fruit producer producing a peel waste with large potential of use. The objective of this work was to evaluate the effect of different Passiflora peel flour (PPF) concentrations in addition to loaf bread. The experiment was carried out in the Agro Industry Sector of IF Goiano Ceres from August to November of 2019. The experimental design was totally randomized with four treatments with different concentrations of Passiflora peel flour (0%, 5%, 10% and 15%) and three repetitions. Physicochemical (pH, titratable acidity, humidity, ash), microbiological analysis (total coliforms and thermotolerant coliforms) were carried out at Instrumental and Microbiologic laboratories. Sensory evaluations were performed with 50 non trained panelists to verify acceptance and purchase intention. It was observed a decrease to pH level (varying from 6.06 to 5.39) and to humidity level (from 30.65% to 27.66%) with the addition of PPF. To ash and titratable acidity levels, there was an increase in the observed values with the addition of PPF, varying from 1.04% to 1.36% and from 2.23% to 4.76%, respectively. It was observed a higher acceptance for 0% (80.31%) and 5% (78.16%) PPF treatments. In this way, we conclude that the use of PPF to enrich loaf bread is an alternative to partial substitution of wheat flour for the addition of nutrients and fibers. The microbiological analysis results indicated that all treatments are according to Brazilian legislation. Therefore, passiflora peel flour has potential to be used in loaf bread fabrication, and could be used to substitute the wheat flour up to 5%.
 
 Keywords: bakery, Passiflora edulis, functional food

Effect of partial substitution of wheat flour with kiwi starch on dough rheology, microstructure, the quality attributes and shelf life of Chinese steamed bread

Chinese steamed bread (CSB), a conventional high-GI staple food, with a short shelf life and a single flavor. In this work, 10–20 % kiwi starch (KS) was used to substitute wheat flour for the production of CSB and the effects of different substitution ratios on the quality and shelf life of mixed flour, dough, and CSB were explored. The results showed that the substitution of KS could improve the water binding capacity of mixed flour and lead to easier pasting in the system, lower the cooking power consumption, increase and improve the viscoelasticity and gas holding capacity of the dough, and make the microstructure more compact and uniform. As the substitution ratio increased, the reduction in protein content within the system further affected the formation of the gluten network, leading to a significant decrease in the CSB's specific volume and cohesiveness, whereas the chewiness and hardness were significantly improved. Meanwhile, KS substitution significantly reduced the starch hydrolysis rate and estimated glycemic index of CSB. 10 % KS substitution enriched the aroma and color of CSB, improved its internal organizational structure, and became more popular among consumers. A substitution ratio of 15–20 % was beneficial for extending the shelf life of CSB.

Partial Substitution of Wheat Flour with Palm Flour in Pasta Preparation

Pasta, a globally cherished staple food, is consumed on a wide scale. However, conventional wheat-based pasta often lacks nutrients that can be incorporated to add value to the new product. To address this nutritional deficiency and enhance the health benefits for consumers, a promising approach is to incorporate Opuntia ficus-indica flour as a partial substitute for wheat flour. The primary objective of this study was to craft enriched tagliatelle pasta using Opuntia ficus-indica flour. The evaluation encompassed an assessment of physical-chemical attributes, color quality, cooking properties, texture profile analysis (TPA), and the analysis of bioactive compounds within the pasta products. Upon conclusion of the experiments, the F10 formulation, comprising 10% Opuntia ficus-indica flour, emerged as the most favorable pasta option. It exhibited an acceptable acidity level of 3.71% and demonstrated remarkable nutritional characteristics. These findings suggest that this formulation could serve as a promising alternative for the production of health-conscious pasta.

In vitro digestion properties and use of automatic image analysis to assess the quality of wheat bread enriched with whole faba bean (Vicia faba L.) flour and its protein-rich fraction

The trend of incorporating faba bean (Vicia faba L.) in breadmaking has been increasing, but its application is still facing technological difficulties. The objective of this study was to understand the influence of substituting the wheat flour (WF) with 10, 20, 30 and 40 % mass of whole bean flour (FBF) or 10 and 20 % mass of faba bean protein-rich fraction (FBPI) on the quality (volume, specific volume, density, colour, and texture), nutritional composition (total starch, free glucose, and protein contents), and kinetics of in vitro starch and protein digestibility (IVSD and IVPD, respectively) of the breads. Automated image analysis algorithm was developed to quantitatively estimate the changes in the crumb (i.e., air pockets) and crust (i.e., thickness) due to the use of FBF or FBPI as part of the partial substitution of wheat flour. Higher levels of both FBF and FBPI substitution were associated with breads having significant (p < 0.05) lower (specific) volume (at least 25 % reduction) and higher density (up to 35 %), increased brownness (up to 49 % and 78 % for crust and crumb respectively), and up to 2.3-fold increase in hardness. Result from the image analysis has provided useful insights on how FBF and FBPI affecting bread characteristics during baking such as loss of crumb expansion, decrease in air pocket expansion and increase in crust thickness. Overall, incorporation of FBF or FBPI in wheat bread were favourable in reducing the starch content and improving the protein content and IVPD of wheat bread. Since bread remains as a staple food due to its convenience, versatility and affordability for individuals and families on a budget, wheat bread enriched with faba bean could be a perfect food matrix to increase daily protein intake.

Partial substitution of wheat flour with soybean and gluten powder: impact on flavor characteristics of Pixian Douban-Meju and its quality.

In this study, different proportions of soybean flour and gluten flour were used as partial replacements for wheat flour for the fermentation of Pixian Douban-Meju (PXDB). The aim was to study the effects of soybean flour/gluten flour on the quality improvement of PXDB. In comparison with the control group (CT) (0% substitution of wheat flour), substitution of wheat flower with 12.5% soybean flour (the H2 group), 7.5% gluten flour (G2), and 10% gluten flour (G3) improved the amino acid nitrogen content by 3.8%, 5.6%, and 9.4% respectively. The mixtures of wheat flour and gluten flour (G2 or G3) increased the organic acid and free amino acid content. The results of two-dimensional gas chromatography mass spectrometry (GC × GC-MS) showed that the amount of key aroma substances increased about sixfold in comparison with the CT group (194.61 g.kg-1 ), achieving 1283.67, 1113.883, and 1160.19 g.kg-1 in the H2, G2, and G3 groups, respectively. There were also more aldehydes and pyrazines in all the substitution groups. Quantitative descriptive analysis indicated that the G3 sample presented the best organoleptic quality with a reddish-brown color and a more mellow aroma than the control sample. In conclusion, the fermentation of G3 resulted in higher quality PXDB-meju, showing that partial substitution of wheat flour with gluten improved the quality of PXDB. © 2023 Society of Chemical Industry.

Characterization of physicochemical, antioxidants and sensory properties of cookies enriched with shea (Vitellaria paradoxa) fruit pulp as a functional ingredient

The shea fruit pulp (SFP), a by-product generated during the processing of shea fruit, is a vital source of phytochemicals for the development of functional foods. This study determined the effect of partial substitution of wheat flour with SFP (0–25%) on the physicochemical, total carotenoids (TC), total phenolics content (TPC), antioxidant activity (AA), and sensory properties of cookies. The bromatological analysis showed that crude fiber, fat, and total ash contents of the SFP-enriched cookies increased by 155.3-565.8%, 1.7–6.8%, and 22.2-111.3%, respectively while moisture, crude protein, and available carbohydrate contents decreased by 10.0-44.9%, 3.1–17.5%, and 1.0-2.9%, respectively with increasing addition of SFP in the cookies. The SFP-enriched cookies had significantly higher TC (183.25-627.49 µg/100 g) and TPC (79.06–185.20 mg GAE/100 g) and AA (28.20-61.58%, inhibition) than the 100% wheat flour cookies, control (2.90 ± 0.14 µg/100 g for TC, 53.81 ± 5.70 mg GAE/100 g for TPC, and 15.79 ± 1.03% for AA). The incorporation of SFP in cookies decreases the thickness and whiteness index by 3.9–24.0% and 4.5–26.9%, respectively, but increases the spread ratio by 5.5–37.9% and the browning index by 10.3–87.4% as compared with the control cookies. Based on the sensory evaluation results, the 25% SFP-enriched cookie had the highest scores for taste, aroma, and texture whiles the 15% SFP-enriched cookie had the best rating for color and overall acceptability. It is conclusive that SFP could be utilized for the industrial production of cookies to enhance the nutritional, antioxidant, and sensory properties of the baked product. Nonetheless, enzymatic browning of the shea fruit pulp is a major limitation, and therefore, rapid processing of fruits and cold storage of the SFP is required to prevent the browning reactions of the SFP.Graphical

Germinated Bambara groundnut (Vigna subterranea) flour as an ingredient in wheat bread: Physicochemical, nutritional, and sensory properties of bread.

Wheat flour (WF) was substituted with germinated Bambara groundnut (Vigna subterranea) flour (GBF) at different proportions (5%, 10%, 15%, 20%, 25%, and 30%) and used in the preparation of bread. The dough mixing, pasting, and gelatinization properties of the blends were evaluated as well as the nutritional quality, in vitro starch digestibility, phytochemical constituents, antioxidant potential, color, texture, and sensory properties of breads. All the wheat dough containing GBF had higher water absorption capacity, gelatinization temperatures, dough development time, low peak, and setback viscosities. The composite breads had significantly higher dietary fiber, minerals, protein digestibility, corrected amino acid scores, resistant starch, slowly digestible starch, total phenolics, total flavonoids, and antioxidant activities and caused significant reduction in rapidly digestible starch content. The addition of up to 15% GBF had no significant impact on the specific volume of wheat bread. Substitution of WF with GBF influenced color and texture properties of bread. Wheat bread supplemented with 20% GBF had significantly higher scores in taste, aroma, and overall acceptability. This study demonstrated the potential of GBF as a functional ingredient in bread making. PRACTICAL APPLICATION: This study provides a suitable possibility of partial substitution of wheat flour with germinated Bambara groundnut, to develop functional and acceptable bread. The dough mixing and pasting results in this study would add to knowledge on the dough handling characteristics as there is limited information regarding the mixing properties of wheat dough with germinated Bambara groundnut.

Effect on bread properties of partial substitution of wheat flour with oat flour and flour from oat grain germinated in the light or dark

SummaryNative oat flour (NOF), light‐germinated oat flour (LOF), and dark‐germinated oat flour (DOF) were used to replace a portion of wheat flour to make bread. Adding 10% (w/w) oat flour contributed to a lower specific volume and darker crust and crumb than control, while light treatment during germination, significantly affected these three indices. Adding oat flour increased the hardness and chewiness values of bread crumbs by nearly 1–2‐fold compared to the control. Adding oat flour especially germinated oat flour significantly increased the bio‐accessible polyphenol content of bread. Compared to the control, the predicted glycaemic index (pGI) value of oat bread was substantially lower. Adding oat flour especially germinated oat flour to bread has the potential to increase bio‐accessible phenolic content and decrease pGI value, but the successful application requires further studies to optimise formulation considering the poor textural characteristics.

Influence of blend proportion and baking conditions on the quality attributes of wheat, orange-fleshed sweet potato and pumpkin composite flour dough and bread: optimization of processing factors

Orange-fleshed sweet potato (OFSP) and pumpkin fruit are underutilized crops with great potential for the production of high-quality bread with health-enhancing properties. However, the incorporation of nonconventional flour in bread formula may influence the dough and bread quality properties. This study investigated the effect of partial substitution of wheat flour with OFSP (10–50%) and pumpkin flour (10–40%), baking temperature (150–200 °C) and baking time (15–25 min) on the quality properties of the composite dough and bread using response surface methodology (RSM). Dough rheological, bread physical and textural properties were analyzed, modelled and optimized using RSM. Satisfactory regression models were developed for the dough and bread quality attributes (R2 > 0.98). The dough development time, crust redness, hardness, and chewiness values increased while optimum water absorption of dough, specific volume, lightness, springiness, and resilience of bread decreased significantly (p < 0.05) with increasing incorporation of OFSP and pumpkin flour in the bread formula. Additionally, the specific volume, crust redness, crumb hardness, and chewiness of the composite bread increased significantly (p < 0.05) with increasing baking temperature from 150 to 180 °C but reduced at higher baking temperatures (≥ 190 °C). The staling rate declined with increased OFSP and pumpkin flour whereas increasing the baking temperature and time increased the bread staling rate. The optimized formula for the composite bread was 78.5% wheat flour, 11.5% OFSP flour, 10.0% pumpkin flour, and baking conditions of 160 °C for 20 min. The result of the study has potential applications in the bakery industry for the development of functional bread.Graphical

Influence of partial substitution of wheat flour with sprouted oat flours on physicochemical and textural characteristics of wheat bread

There is an issue to be solved in wheat bread processing that the substitution of oat flour enhanced the nutritional value, but deteriorated the texture of wheat bread. To improve the textural attributes of the bread, the inclusion of sprouted oat flour for up to 120 h was investigated in this study. Results indicated that oat β-glucan (OBG) of the bread decreased from 7.86 to 1.88 g/100 g, while total phenols and γ-aminobutyric increased nearly threefold after sprouting for 120 h. The dough stability and rheological properties of wheat with sprouted oat flour were determined to aid the prediction of the textural properties of the final bread products. There was a positive relationship between stability time and viscoelasticity of mixed dough and textural parameters of wheat bread with sprouting oat flour. Compared with wheat bread with unsprouted oat flour, wheat bread with sprouted oat flour was characterized by lower hardness, chewiness, and gumminess, higher cohesiveness, springiness, and resilience. Additionally, the confocal laser scanning microscope illustrated that unsprouted oat flour destroyed the continuity of gluten protein network. Surprisingly, dough with oat flour sprouting for 72 h presented an orderly and dense network structure resulting from the OBG integration. This study suggests that it is promising to develop multigrain bread with more various nutrition and more satisfying textural attributes by an appropriate sprouting process.

Total Utilization-Upcycling of Mushroom Protein By-Product: Characterization and Assessment as an Alternative Batter Ingredient for Fried Shrimp.

Mushroom by-products are economical and eco-friendly raw materials with bioactive and functional characteristics that allow for potential uses as food ingredients. However, mushroom upcycling has yet to be fully exploited, despite the many opportunities that mushrooms may offer. The mushroom protein by-product (MPBP) resulting from mushroom protein production was characterized (chemical composition, physicochemical attributes, and functional properties) and incorporated into plant-based batter formulations to prepare four experimental groups with different ratios (w/w, %) of wheat flour (W) to MPBP (100 W, 75 W/25 MPBP, 25 W/75 MPBP, and 100 MPBP). Subsequently, the batter was used for frying batter-coated shrimp, which was evaluated for cooking loss, coating pick-up, oil absorption, and color parameters (L*, a*, and b*). MPBP showed high content of dietary fiber, mainly insoluble fiber (49%), and it is potentially suited for the formulation of high-fiber food products. The MPBP physicochemical attributes pH (11.69), water activity (0.34), L* (58.56), a* (5.61), b* (18.03), and particle size distribution (250-500 µm (22.12%), 125-250 µm (41.18%), 63-125 µm (37.53%), and < 63 µm (0.82%) were noted. Concerning the MPBP functional characteristics, solubility (12.7%), emulsifying activity index (7.6 m2/gr), emulsion stability index (52.4 min), water holding capacity (4.9%), and oil holding capacity (4.8%) were reported. Adding MPBP into batter formulations for batter-coated shrimp resulted in higher values of cooking loss, oil absorption, coating pick-up, and a* color, while lowering L* and b* values. The best experimental results were reported for group 75 W/25 MPBP, which indicates that MPBP can potentially be accepted as a novel batter ingredient for partial substitution of wheat flour.

Development and characterization of biscuits with olive pomace

This work developed biscuits with the partial substitution of wheat flour with olive pomace flour (OPF). The wheat flour contents substituted by OPF in the biscuits were 0%, 10%, and 20%. The effects of the flour on the chemical composition, lipid profile, and sensory aspects of the reformulated biscuits were evaluated. The data showed that the OPF has a high concentration of dietary fiber (43.75%) and 27.70% lipids. The biscuit with 10% of the wheat flour replaced by OPF has 4.29% of total dietary fiber and 22.61% of lipids, whereas the biscuits made by substituting 20% of the wheat flour with OPF have 8.52% of total dietary fiber and 23.78% of lipids. The incorporation of OPF increased the contents of lipids, minerals, and dietary fiber. Sensorially, the sensory descriptors were not beneficial to characterize the biscuits reformulated with OPF. Also, the lightness, texture, and brittleness decreased in the biscuits with added OPF, as did the loss from baking. Hence, the BIS10 biscuit proved to have the potential to be better explored from the physicochemical and sensory viewpoint.

Upcycling of a by-product of the brewing production chain as an ingredient in the formulation of functional shortbreads

• Brewers Spent Grains (BSGs) are the main by-product of beer industry. • Formulation of shortbreads with BSGs is a feasible strategy for their upcycling. • 30 % of BSGs in shortbread recipe enhances fiber (TDF) and arabinoxylan content. • The TDF content allows for High in fiber label and meets the Gut health EFSA claim. • Experimental shortbreads have acceptable sensory characteristics. This work aims to formulate shortbreads by partial substitution of wheat flour with brewers’ spent grains (BSGs), valorization strategy of this by-product. This study has underlined that replacing 30 % wheat flour with BSGs barley malt flour and BSG enriched with 30 % of oat flakes allows for a significant increase in fiber, particularly arabinoxylan, and protein, compared with the reference biscuit. The fiber content allows for a “high in fiber” label and meets the “gut health” EFSA claim. The obtained food products contribute to the recommended daily intake of bioactive compounds for health benefits, they do not show an increase in sugars and fats, compared to 100 % wheat flour shortbread, and have acceptable sensory characteristics. The formulation of shortbreads by partial substitution of wheat flour with BSGs can be an efficient and feasible strategy for the upcycling and valorization of this by-product throughout the production of functional food.