Partial replacement of wheat flour by pecan nut expeller meal on bakery products. Effect on muffins quality

Effect of Partial Replacement of Wheat Flour by Flour from Extruded Sunflower Seed Kernels on Muffins Quality

The use of new types of raw materials to improve the quality and nutritional value of products is an important trend in flour confectionery. Flour from extruded sunflower seed kernels (FESSK), the by-product of oil production, was used as a new ingredient in muffin formulation. Analysis of physicochemical and nutritional properties of muffins prepared with FESSK, which was added in the amounts of 5, 10, and 15% to the total weight of mixture of wheat and rye flours, as well as their sensory evaluation, were performed. According to the sensory evaluation, the muffins with FESSK had a pleasant, nutty and sunflower aroma, and the best results were shown by muffins with 10% of FESSK. Addition of FESSK, 10%, led to an increase of the content of protein by 24.7%, fat by 16.9%, fiber by 23.3%, ash by 16.9%, and a decrease of content of total carbohydrates by 5.2% and sugars by 16.2%. Enriched muffins had improved texture characteristics, particularly, smooth, crack-free surface, soft, and elastic crumb with well-developed porosity and small, evenly distributed, thin-walled pores. The FESSK could be recommended as an ingredient for improving the nutritional and technological properties of flour confectionery products.

Cold-Pressed Okra Seed Oil Byproduct as an Ingredient for Muffins to Decrease Glycemic Index, Maillard Reaction, and Oxidation

This study aimed to investigate the effects of adding cold-pressed okra seed oil byproduct (OSB) to the muffin formulation, as a partial substitute for wheat flour, on the nutritional, physicochemical, rheological, textural, and sensory properties of muffins. The carbohydrate, protein, oil, moisture, and ash contents of OSB were 44.96, 32.34, 10.21, 7.51, and, 4.98%, respectively, indicating that OSB was rich in protein and carbohydrate. All muffin samples showed a shear thinning behavior, indicating that the viscosity of all samples decreased with increasing shear rate. The frequency sweep test showed that all samples showed viscoelastic solid-like structure [G' (storage modulus)> G″ (loss modulus)]. The K' values (between 66.45 and 139.14) were higher than the K″ values (between 36.62 and 80.42) for all samples. The result was another indication of the viscoelastic solid characteristic of the samples. In our study, it was found that the fluorescence of advanced Maillard products and soluble tryptophan index decreased with increasing amount of OSB, indicating that OSB addition led to a decrease in the amount of fluorescent Maillard reaction (MR) products. The fortified muffins with more than 10% OSB had a reduced estimated glycemic index (GI) significantly in comparison with control muffin samples (p < 0.05). The induction period (IP) values of the muffin samples containing OSB (between 11:57 and 15:15 h/min) were higher than the IP value of the control sample (10:50 h/min), indicating that OSB improved the oxidative stability of the muffin samples. The addition of OSB has shown no negative effect on sensory attributes considering texture, mouth fell, odor, and taste. This study suggested that the addition of OSB in muffins could improve rheological properties and oxidative stability and decrease GI and the amount of MR products without negative impact on sensory properties.

A New Functional Wheat Flour Flatbread (Bazlama) Enriched with High-β-Glucan Hull-Less Barley Flour

Although the Med-Diet is a healthy diet model, it is affected by current dietary habits. Therefore, new foods with improved nutritional value should be developed to respond to the needs of people following the Med-Diet. This study was focused on developing high-β-glucan flat bread (bazlama) with a relatively lower GI. A bread wheat (cv. Tosunbey) flour was enriched with the flour of a high-β-glucan-content hull-less barley (cv. Chifaa) flour (15, 30, 45 and 60%) to develop a functional bazlama. The nutritional and technological properties of bazlama samples enriched with barley flour were compared with the ones produced from bread wheat. All of the barley flour-enriched bazlama samples had higher yellowness values (b*) than the control (both crumb and crust), which is generally preferred by the consumers. Texture results indicated that bazlama samples became harder with the increase in barley flour supplementation level. The results showed that 3 g of β-glucan can be provided from the barley flour-enriched bazlama samples (at 45 and 60% levels), and this is the limit to carry health claims. The bazlama samples enriched with barley flour were richer in Mg, K, Mn, Fe, and Zn minerals than the control (100% Tosunbey flour). While the glycemic index (GI) of commercial bread wheat and Tosunbey bazlama samples were high (88.60% and 79.20%, respectively), GI values of the bazlama samples enriched with 60% (64.73) and 45% barley flour (68.65) were medium. The lower GI values of barley flour-enriched bazlama samples are probably due to the higher β-glucan contents of the bazlama samples. Additionally, as the barley flour supplementation level of the bazlama samples increased, the phenolics and antioxidant capacities of free and bound extracts increased compared to bread wheat bazlama. The results indicated that hull-less barley (cv. Chifaa) with high β-glucan content may be utilized at relatively higher levels (45 and 60%) to produce bazlama with improved nutritional properties.

The Potential of Wine Lees as a Fat Substitute for Muffin Formulations

The current study evaluates the prospect of wine lees (WL), a costless by-product from Amarone winemaking, as a fat replacer in muffin formulation. WL have elsewhere replaced sunflower oil, allowing the creation of 0, 25, 50, 75, and 100% fat-substituted muffins named ML0, ML25, ML50, ML75, and ML100, respectively. Batter rheology, in addition to the textural and colorimetric characteristics, the pore dimension, and the sensory aspect of the different formulations were evaluated. The batter consistency (K) of fat-replaced muffins was lower than that of the control, while the hardness and chewiness of the end products were higher. ML25 and ML50 samples reached the highest volume, while the baking loss decreased due to WL's fiber components. ML25, ML50, ML75, and ML100 accounted for caloric reductions of 9, 18, 22, and 26%, respectively, compared to full-fat muffins. Muffins with WL showed a darker crust and crumb as lightness (L*) decreased. Moreover, a* parameter increased with the increment of WL in the formulation, leading to a redder and less yellow-hued fat-replaced muffin. In conclusion, WL could effectively replace fat in the 25-50% range in muffins, achieving a final product with reduced calories, a higher dietary fiber content, higher volume, and promising sensory aspects.

Papaya dietary fiber concentrates for providing functionality to muffin formulations

BACKGROUND

Papaya leftovers are a good source of dietary fiber (DF) and antioxidants. They can be transformed in dietary fiber concentrates (DFCs) to be used as ingredients in food formulation, improving consumers' health status.

RESULTS

Using the peel or the pulp of papaya, DFCs were produced. These DFCs were used in muffin production. Muffins produced with 7.7% DFCs and 47.6 g water had the same specific volume (2.0 cm³  g^-1 ) but softer crumb than those obtained with a reference formulation without DF addition, showing average hardness of 15 N. In general, the addition of DFCs of pulp or peel slightly affected other textural profile parameters. Also, non-significant differences were observed for muffins containing pulp or peel DFCs, which showed average values of 10.9 N for chewiness, 0.95 for springiness, 0.76 for cohesiveness and 0.42 for resilience. Regarding the crumb structure, muffins with pulp DFCs showed the lowest value for d_3.2 (1.3 ± 0.3 mm). Meanwhile, the highest anti-radical and reducing capacity, 240 ± 2 and 1050 ± 6 mgeq Trolox g^-1 muffin (dry basis), respectively, were observed in the muffins with peel DFC. Finally, the addition of DFCs allowed us to maintain lower hardness values than those of the reference formulation during the whole storage period studied (22 days). Muffins with peel DFCs tended to have a lower rate of crumb hardening (0.08 ± 0.02) d^-1 .

CONCLUSION

The addition of papaya DFCs to muffin formulations confers interesting properties for industry and consumers, providing functionality, extending the shelf life as well as transforming papaya leftovers in new functional ingredients, contributing to a circular economy. © 2022 Society of Chemical Industry.

Date Components as Promising Plant-Based Materials to Be Incorporated into Baked Goods—A Review

Date (Phoenix dactylifera L. Arecaceae) fruits and their by-products are rich in nutrients. The health benefits of dates and their incorporation into value-added products have been widely studied. The date-processing industry faces a significant sustainability challenge as more than 10% (w/w) of the production is discarded as waste or by-products. Currently, food scientists are focusing on bakery product fortification with functional food ingredients due to the high demand for nutritious food with more convenience. Utilizing date components in value-added bakery products is a trending research area with increasing attention. Studies where the researchers tried to improve the quality of bakery goods by incorporating date components have shown positive results, with several drawbacks that need attention and further research. The objective of this review is to present a comprehensive overview of the utilization of date components in bakery products and to identify gaps in the current knowledge. This review will help focus further research in the area of valorization of date by-products and thereby contribute to the generation of novel functional bakery products that meet consumer expectations and industry standards, thus generating income for the relevant industry and considerable alleviation of the environmental burden this waste and by-products contribute to. Only a few studies have been focused on utilizing date by-products and their extracts for baked goods, while a research area still remaining under-explored is the effect of incorporation of date components on the shelf life of bakery products.

Custard apple puree, fructooligosaccharide and soy protein hydrolysate as alternative ingredients in low carb pound cake

The optimum formulation of a low carb pound cake was determined using alternative ingredients to replace the main sources of digestible carbohydrates in the standard formulation. Surface response methodology was a useful tool in the investigation of the use of custard apple puree (CAP), fructooligosaccharides (FOS) and soy protein hydrolysate (SPH) as partial or total replacers for wheat flour, sucrose, and powdered whole milk, respectively. The quality of pound cakes was assessed by measuring the batter and cake properties. The percentage of ingredients substitution affected the specific gravity of the batter, cakes specific volume, crumb firmness, instrumental color parameters (L*, a*, b*) and number and circularity of alveoli from pound cake slices. The model equations developed can be used for predicting the quality of the pound cake. The optimum formulation of low carb pound cake with 40.98% of CAP, 94.94% of FOS and 100% of SPH, in replacement of wheat flour, sucrose and powdered whole milk, respectively, has a 93.70% of desirability. A reduction of 60.67% in digestible carbohydrates was reached. The main reduction occurs in the starch content due to the wheat flour replacement and the non-reducing sugar content due to the sucrose partial substitution. The low carb pound cake had a moderate glycemic index (60.08%), a low glycemic load (4.69%) and accepted by the judges through sensory analysis, with an acceptability index of 72.08 ± 3.97%.

SUPPLEMENTARY INFORMATION

The online version contains supplementary material available at 10.1007/s13197-021-05155-9.

Reformulation of Muffins Using Inulin and Green Banana Flour: Physical, Sensory, Nutritional and Shelf-Life Properties

This study demonstrates a scenario of industrial reformulation by developing muffins that resemble store-branded ones and testing the possibility of reformulating them using inulin and green banana flour (GBF). Ten different formulations were created through reducing 10% or 30% of sugar and/or fat. Physical characteristics, consumer acceptance and purchase preferences, baking losses, nutritional properties, shelf-life, as well as cost and industrial processability were considered and discussed. Results on physical properties showed that firmness had increased in reformulated muffins while springiness only decreased when both sugar and fat were reduced by 30% (p < 0.05). Texture and sensory properties of reformulated muffins were acceptable, and the purchase intent rate was high. Regarding the nutritional properties, muffins incorporating more than 10% of fibres allowed the addition of nutritional claims. The incremental area under the curve iAUC_120min of blood glucose in healthy adults (n = 13) was significantly lower than control after ingesting 30% reduced sugar or fat muffins using inulin (p < 0.01). The microbial profile was not affected by reformulation during storage at 25 °C for 10 days. This study concluded that there is a significant potential to industrially produce reduced sugar or fat muffins using inulin or GBF up to 30% without significantly deteriorating quality attributes.

Characterisation of Muffins with Upcycled Sunflower Flour

There is an increased interest and need to make our economy more circular and our diets healthier and more sustainable. One way to achieve this is to develop upcycled foods that contain food industry by-products in their formulation. In this context, the aim of this study was to develop muffins containing upcycled sunflower flour (a by-product from the sunflower oil industry) and assess the effects of sunflower flour addition on the fibre, protein, amino acid, mineral content, and antioxidant activity measured by a Ferric Reducing Antioxidant Power (FRAP) assay and Photo chemiluminescence (PCL) assay. Results show that the sunflower flour inclusion significantly improved all the parameters analysed as part of this study. A more balanced muffin amino acid profile was achieved, thanks to the increased levels of lysine, threonine, and methionine, the limiting essential amino acids of wheat flour. We can conclude that upcycled ingredients, such as sunflower flour, could be used for the nutritional improvement of baked goods, such as muffins. Their addition can result in several nutritional advantages that could be communicated on packaging through the use of the appropriate EU nutrition claims, such as those on protein, fibre, and mineral content.

Flax and hempseed oil functional ingredient stabilized by inulin and chia mucilage as a butter replacer in muffin formulations

The addition of different amounts of a functional ingredient composed of water, inulin, chia seeds, and hemp or flaxseed oil was examined as butter replacer to improve the nutritional value of muffins. Nutritional, technological, and sensory characteristics of the reformulated products were assessed, as well as the stability under storage at room temperature. One control and six modified formulations with three levels of butter replacement (50%, 75%, and 100%) were analyzed. Modified muffins improved their nutritional profile, reducing up to 78% of fat and increasing fiber (up to 62.5%) and omega-3 fatty acids content (from 0.12 g/100 g of product to 0.62 g and 1.55 g in hemp and flaxseed oil samples, respectively). Sensory analysis revealed that flaxseed oil samples were indistinguishable from the control in all evaluated attributes, even in the highest level of replacement. During storage, texture of modified samples behaved similar to the control and no oxidation problems were observed in any of the formulations. Therefore, the functional ingredient proved to be a feasible alternative for replacing butter in muffins, preserving the quality attributes and making them healthier foods. PRACTICAL APPLICATION: Functional ingredients including fiber and low amounts of good-quality sources of fat have a simple manufacturing process, do not require heating, and perform well once incorporated to the matrix. They are versatile and could be incorporated in other bakery products to substitute butter or even oil, to obtain a reduced calorie product and with an enhanced nutritional profile and good sensory properties.

The Role of Non-Caloric Sweeteners in Sensory Characteristics of Pastry Products

The purpose of this work was to evaluate the role of non-caloric sweeteners in pastry products considering the product made with sugar as a control sample. Sensory preference and acceptability with consumers were determined through ranking test and 9-point hedonic scale respectively. The satiation and satiety were determined by the visual analogue scale (VAS). In addition, caloric intake; macronutrients; physical parameters such as yield, specific volume, hardness, cohesiveness, and gum; stability in storage time by microbiological analysis; and moisture variation of the samples were calculated. The results showed that the preference and sensory acceptability is significantly (p < 0.05) higher in the control sample; the sweeteners decreased the sensory response, but not the satiation and satiety, although these are not related to the sensory response and did not present significant differences with the control sample, except in the satiation parameter of the sample sweetened with Stevia. The physical and texture parameters highlight the best quality of the control sample and are related to the sensory response. The shelf life is also greater in the control sample, which shows that sugar contributes sweetness and other technological characteristics related to texture, stability during storage, aroma, color, and flavor, thanks to the Maillard reaction.

Utilization of a by-product of chia oil extraction as a potential source for value addition in wheat muffins

During chia oil extraction a by-product, the partially-deoiled chia flour is obtained. This product has highly desirable characteristics. It has a high content of protein, dietary fiber and a high antioxidant power. The partially-deoiled chia meal (PDCF) was extracted, characterized and utilized to formulate a popular baked product (muffins). The effect of the PDCF on its physicochemical, microstructural, sensory, nutritional and antioxidant properties were evaluated. Muffins supplemented with the chia by-product had improved nutritional properties (higher protein, fiber, polyphenols content, and higher antioxidant capacities). The sensory properties of the muffins made with up to 5% were not significantly changed. The use of a partially-deoiled chia meal in functional food development could add value to the food chain value with economic/social benefits. Some changes in the quality were observed but the use of a 5% of partially-deoiled chia flour could be proposed without significantly affecting the overall quality of the product.

DEVELOPMENT OF COMPOSITION AND INVESTIGATION OF THE NUTRIENT COMPOSITION OF THE MUFFIN"SNOWBALL"

Actualization of fast food products resulted in consumption of products with an unbalanced chemical composition that may be deficit by proteins and food fibers by a modern human. Such products negatively influence the human organism that is why it is urgent to develop compositions of products with high biological indices. The aim of the scientific work was to develop the composition of a cheese muffin and to determine its biological value that allows to get a high protein product with a balanced chemical composition. Using a table processor MS Excel 2010, there was developed the composition of a cheese muffin «Snowball». Its composition contains of (mass. %, g): sour-milk cheese – 60, sesame seeds – 5, sugar – 5, cream butter – 10, walnuts – 8, salt – 1, raisins – 7, collagen hydrolysate (collagen preparation) – 10, wheat flour – 40. A muffin is a source of necessary macro- and micronutrients. Its consumption completely satisfies the human need in vitamins А and В6 and by 94 % covers the need in phosphorus. At the expanse of introducing collagen hydrolysate in the muffin composition and change of a flour share by sour-milk cheese, there increases the protein content in the ready product (45,3 %). Consumption of 1 muffin satisfies the human organism with amino acids totally almost by 29,8 %. The estimation of microbiological and organoleptic parameters at storage gives a possibility to state that a cheese muffin «Snowball» will be competitive at the consumption market. The storage term is 72 at temperature (18±2)°С, humidity no more 75 % in cardboard boxes.