Physical properties and organoleptic evaluation of gluten-free bread from proso millet

2019 ◽  
Vol 122 (2) ◽  
pp. 547-560 ◽  
Author(s):  
Joseph Woomer ◽  
Manjot Singh ◽  
Paul Priyesh Vijayakumar ◽  
Akinbode Adedeji
Keyword(s):  
Physical Properties ◽  
Corn Starch ◽  
Potato Starch ◽  
Consumer Preference ◽  
Gluten Free ◽  
Organoleptic Evaluation ◽  
Content Type ◽  
Overall Acceptability ◽  
Proso Millet ◽  
Novel Approach

Purpose Gluten-free (GF) foods have gained momentum among consumers due to an increase in incidence and awareness of gluten sensitivity and intolerance. Millet is a GF grain with nutritive qualities comparable to other cereals. However, it was not clear how millet-based GF products would be accepted, leading to the goal of this research. Therefore, the purpose of this paper is to evaluate the effect of formulation on physical properties and consumer preference of millet-based GF bread. Design/methodology/approach Three bread formulations were used: proso millet flour (100 percent), proso millet flour–corn starch (1:1), and proso millet flour–potato starch (1:1). Physical and sensory properties were statistically evaluated. Findings Starch addition to the bread formulation had a significant influence on bread volume, color and firmness. A consumer’s age, gluten intolerance and familiarity with millet products did influence the frequency of consumption of GF products. Gluten-intolerant panelists consumed GF products more often than others who are not. Older panelists reported consuming more GF products than younger panelists. Gender also had a significant effect on consumers’ preference for overall acceptability and crumb aroma. The formulation had a significant effect on consumers’ preference of crust color and crumb aroma. Practical implications The paper presents an understanding of how starch addition modulates bread properties for the GF market. Originality/value In this paper, the authors explored a novel approach to use different starches and proso millet for making GF bread and determined sensory responses based on demographics like age, celiac diagnosis and familiarity with GF foods. This vital information will help processors to determine the portion of the market to target and the formulation to explore further.

Isolation, characterization and utilization of starter cultures for the development of wheyghurt drink

2013 ◽  
Vol 115 (8) ◽  
pp. 1169-1186 ◽  
Author(s):  
Muhammad Saeed ◽  
Faqir Muhammad Anjum ◽  
Moazzam Rafiq Khan ◽  
Muhammad Issa Khan ◽  
Muhammad Nadeem
Keyword(s):  
Starter Culture ◽  
Streptococcus Thermophilus ◽  
Starter Cultures ◽  
Organoleptic Evaluation ◽  
Content Type ◽  
Overall Acceptability ◽  
Minimum Score ◽  
Good Nutrition ◽  
Sensory Parameters ◽  
And Storage

PurposeWhey products have conventionally been professed as a means of reducing ingredient costs. The authentic benefits of adding whey products are the enhanced worth resulting from flavor, texture and nutritional improvements as well as nutraceutical or health‐enhancing payback. Therefore, the present study aims to isolate and characterize suitable starter cultures for the production of wheyghurt drink.Design/methodology/approachKeeping in view all the benefits of yoghurt technology this study was planned to isolate the starter cultures and optimize the conditions for the production of wheyghurt drink. The starter cultures (Lactobacillus delbruceckii ssp. Bulgaricus and Streptococcus thermophilus) were isolated from the yoghurt and further characterized on the basis of their morphological and biochemical characteristics. The wheyghurt drink prepared from starter cultures with varying starter culture concentrations (1, 1.5, 2 and 2.5 percent) was analyzed for the physicochemical and sensory characteristics to explore the potential of wheyghurt drink.FindingsDuring storage, color, flavor, taste and overall acceptability were affected significantly. But the interaction between treatments and storage was found non‐significant to all the sensory parameters. At zero day maximum score (7.40) for overall acceptability was recorded for T3 and minimum score (5.60) was awarded to T4. After five, ten and 15 days of storage, judges observed a slight decline in overall acceptability in all wheyghurt drink samples. Hence it was concluded that wheyghurt drink sample T3 obtained maximum scores regarding the organoleptic evaluation and remained the best.Practical implicationsThe key to growth is a continuous evaluation and modification of the product to match consumer expectations. Currently there are many apparent benefits that result from incorporating selected whey products into yogurt formulas. The starter cultures for the production of fermented whey products are not presently produced in Pakistan and are imported for industrial use. The use of LAB as starter culture may help to improve the quality and shelf life of the whey products.Originality/valueThe research is useful for food manufacturers in order to develop functional food products for consumers. Understanding consumer needs and preferences is critical to successful product development and enhancing marketing values of a product. Nutritionally improved foods, such as wheyghurt over the conventional counterpart, will be highly successful in the marketplace. Consumers will prefer such kinds of foods because they are more conscious about their health and such foods provide them with what they desire, i.e. health benefits with good nutrition.

scholarly journals Improvement of Texture, Nutritional Qualities, and Consumers’ Perceptions of Sorghum-Based Sourdough Bread Made with Pediococcus pentosaceus and Weissella confusa Strains

Fermentation ◽  
2022 ◽  
Vol 8 (1) ◽  
pp. 32
Author(s):  
Ayoyinka O. Olojede ◽  
Abiodun I. Sanni ◽  
Kolawole Banwo ◽  
Towobola Michael
Keyword(s):  
Corn Starch ◽  
Control Sample ◽  
Gluten Free ◽  
Pediococcus Pentosaceus ◽  
Overall Acceptability ◽  
Substitution Level ◽  
Sorghum Flour ◽  
Sourdough Bread ◽  
Bread Production ◽  
Weissella Confusa

Enriched gluten-free products are in high demand owing to increasing celiac disease worldwide. Sourdough fermentation can improve the quality of gluten-free cereals, rendering the resulting product beneficial as a functional food. This study produced sorghum bread (SB) using sourdough technology and evaluated the texture, nutrition profile, bioactive components, and sensory attributes of the product. The base formula was composed of sorghum flour and corn starch. Sourdough made with Pediococcus pentosaceus LD7 (PL7), P. pentosaceus SA8 (PS8), or Weissella confusa SD8 (WS8) was added at a 20% substitution level for bread production, while bread without sourdough addition was used as the control sample. The texture profiles of the SB were significantly (p ˂ 0.05) softer than that of the control. The sourdough breads possessed higher crude protein, ash, and dietary fibre contents than the control bread. Tannin and total phenol contents were significantly (p ˂ 0.05) higher in the sourdough breads compared to the control sample. The specific volume of the sample made with PS8 sourdough was the highest at 2.50 cm3/g compared to the other samples (2.17–2.46 cm3/g). The sourdough samples had higher scores for taste, texture, aroma, and overall acceptability than the control, with PL7 SB exhibiting the best overall acceptability (6.56). This study established promising use of sourdough with starters as an ingredient for baked products with improved technological and nutritional attributes as well as consumer acceptability.

Physiochemical properties and sensory characteristics of resistant starch enriched cookies

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Arezoo Rojhani ◽  
Joshua Naranjo ◽  
Ping Ouyang
Keyword(s):  
Resistant Starch ◽  
Nutritional Value ◽  
Consumer Preference ◽  
Sensory Attributes ◽  
Eating Quality ◽  
Surface Color ◽  
Content Type ◽  
High Fiber ◽  
Overall Acceptability ◽  
Significant Difference

Purpose The purpose of this study was to examine sensory attributes, physiochemical characteristics and consumer preference of drop sugar cookies prepared using high-amylose maize resistant starch (HAMRS) as a replacement for 10%, 20% and 30% of all-purpose (AP) flour as compared to a control made with 100% AP flour. Design/methodology/approach A balanced complete block experimental design was used to evaluate the eating quality of the resistant starch enriched cookies using a consumer panel. Consumer preference for the appearance, flavor, texture, moistness and overall acceptability of cookies was assessed. Diameter, height, spread ratio, hardness, moisture, pH, density, surface color and nutrient composition of cookies were analyzed. Findings Compared with the control cookies, the HAMRS cookies had lower diameters, higher, heights, reduced spreads, reduced % moisture losses and lower densities (p < 0.001). TA.XT Plus Texture Analyzer showed the HAMRS cookies had a softer texture than the control cookies (p < 0.0001). Evaluation of surface color showed no significant difference in lightness between the control and the HAMRS cookies. The HAMRS cookies were preferred over the control for appearance, texture and moistness in sensory evaluation with 42.5% of panelists choosing the 20% HAMRS replaced cookies as their overall preference. The 20% and 30% HAMRS replaced cookies qualify to be labeled as a “good source” and “excellent source” of fiber, respectively. Practical implications This data demonstrates that replacement of up to 30% of AP flour with HAMRS improves eating quality and dietary fiber content of sugar cookies. Our results show that HAMRS has good potential for developing high fiber cookies with minimal adverse impact on physical characteristics and notable improvements in sensory attributes and nutritional value. Originality/value To the best of the authors’ knowledge, this is the first study that has reported on the functionality, consumer preference and nutritional value of cookies enriched with a HAMRS that is available to consumers in the form of flour.

scholarly journals A Systematic Review on Gluten-Free Bread Formulations Using Specific Volume as a Quality Indicator

Foods ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 614 ◽  
Author(s):  
Jordanna S. Monteiro ◽  
Priscila Farage ◽  
Renata Puppin Zandonadi ◽  
Raquel B. A. Botelho ◽  
Livia de L. de Oliveira ◽  
...  
Keyword(s):  
Systematic Review ◽  
Quality Indicator ◽  
Specific Volume ◽  
Corn Starch ◽  
Amylose Content ◽  
Potato Starch ◽  
Rice Flour ◽  
Rice Starch ◽  
Gluten Free ◽  
Texture Profile

This study aimed to perform a systematic review on gluten-free bread formulations using specific volumes as a quality indicator. In this systematic review, we identified 259 studies that met inclusion criteria. From these studies, 43 met the requirements of having gluten-free bread with a specific volume greater than or equal to 3.5 cm3/g. Other parameters such as the texture profile, color (crumb and crust), and sensory analysis examined in these studies were presented. The formulations that best compensated the lack of the gluten-network were based on the combination of rice flour, rice flour with low amylose content, maize flour, rice starch, corn starch, potato starch, starch with proteins and added with transglutaminase (TGase), and hydrocolloids like hydroxypropylmethylcellulose (HPMC). Of the 43 studies, three did not present risk of bias, and the only parameter evaluated in common in the studies was the specific volume. However, it is necessary to jointly analyze other parameters that contribute to the quality, such as texture profile, external and internal characteristics, acceptability, and useful life of the bread, especially since it is a product obtained through raw materials and unconventional ingredients.

scholarly journals Defining Whole Grain Sorghum Flour and Water Levels to Improve Sensory and Nutritional Quality of Gluten-Free Bread—A Factorial Design Approach

2021 ◽  
Vol 11 (17) ◽  
pp. 8186
Author(s):  
Ana Carolina L. Centeno ◽  
Etiene Aguiar ◽  
Fernanda Santos ◽  
Valéria Queiroz ◽  
Ana Conti-Silva ◽  
...  
Keyword(s):  
Potato Starch ◽  
Grain Sorghum ◽  
Weight Basis ◽  
Water Levels ◽  
Gluten Free ◽  
Whole Grain ◽  
Overall Acceptability ◽  
Sorghum Flour ◽  
Hedonic Scale

This study aims to investigate the potential of white and bronze whole-grain sorghum flour to develop gluten-free bread (GFB) with acceptable sensory properties. Two 22 factorial designs, with two central point repetitions each, were used to study the effects of white (WS) or bronze sorghum (BS) flours and water (W) levels on the physical properties, acceptability scores, and proximate composition of GFB. The WS or BS levels ranged from 50 to 100% when blended with potato starch, and the W levels ranged from 100 to 140% (flour weight basis). Independent of the amount applied, GFB formulations containing BS were well accepted (acceptability scores for appearance, color, odor, texture, flavor and overall liking ≥ 6.29 on a 10 cm hybrid hedonic scale). No significant differences were observed between the acceptability scores of single and composite formulations for all of the evaluated sensory attributes. Moreover, the W levels had no effect on the acceptability of GFB made with BS. Composite formulations prepared with 50 and 75% WS were also well accepted (acceptability scores for appearance, color, odor, texture, flavor, and overall liking ≥ 7.43 on a 10 cm hybrid hedonic scale). However, increased W levels are required in single formulations to increase the scores for texture and overall acceptability. GFB made with 50% and 75% WS/BS can be classified as a source of fiber since the fiber content is higher than 3 g per 100 g, while GFB made with 100% WS/BS can be classified as high in fiber, as the content of this component is higher than 6 g per 100 g. This research highlights the great potential of whole-grain sorghum flours for producing nutrient-dense and acceptable GFB, which is important for consumers who choose or must adhere to a GF diet.

Adopting traditional fermented foods as carriers for probiotics

2019 ◽  
Vol 50 (5) ◽  
pp. 841-852
Author(s):  
Ivan Muzira Mukisa ◽  
Stellah Byakika ◽  
Rehema Meeme ◽  
Alex Paul Wacoo ◽  
Wilbert Sybesma ◽  
...  
Keyword(s):  
Lactobacillus Rhamnosus ◽  
Streptococcus Thermophilus ◽  
Soluble Solids ◽  
Consumer Acceptability ◽  
Fermented Foods ◽  
Content Type ◽  
Microbial Counts ◽  
Overall Acceptability ◽  
Novel Approach ◽  
Traditional Fermented Foods

Purpose Traditional fermented products can be adopted as probiotic carriers. This study was aimed at evaluating the potential of using Obushera, a traditional sorghum beverage from Uganda, as a carrier for Lactobacillus rhamnosus yoba. Design/methodology/approach Probiotic Obushera was produced by fermenting sorghum malt with Lb. rhamnosus yoba 2012 and Streptococcus thermophilus C106 at 30 °C and at room temperature (21°C-25 °C) for 24 h. Acidity, pH, total soluble solids and microbial counts were monitored. Consumer acceptability and purchase index of probiotic Obushera were compared to four commercial non-probiotic brands. Shelf stability of probiotic Obushera was determined by monitoring changes in pH, acidity, soluble solids, microbial counts and consumer acceptability during refrigerated storage. Findings Lactobacillus rhamnosus yoba 2012 multiplied and lowered the pH of Obushera from 5.3 to < 4.0 (p < 0.0001) whilst increasing acidity from 0.21 to 0.46 per cent (p < 0.0001) in 9 h at 30 °C. Consumer acceptability varied with Obushera brand (p < 0.0001). The overall acceptability score of probiotic Obushera (score of 6.4 = like slightly) was similar to that of the two most acceptable commercial brands (scores of 5.8 and 6.6). Acidity, pH and Lb. rhamnosus counts of probiotic Obushera varied within 0.6 per cent –1.05 per cent (p < 0.0001), 3.3–3.4 (p < 0.0001), and 8.2-9.2 log cfu/ml (p < 0.0001), respectively during two months of storage. The overall acceptability of probiotic Obushera (scores of 6.9-7.8) did not change significantly during storage (p = 0.185). Practical Implications Traditional fermented foods such as Obushera can be adopted as carriers of probiotic microorganisms. Originality/value Use of commercial probiotic strains in traditional fermented foods is a novel approach that can be adopted to improve safety of traditional fermentations and health of consumers.

scholarly journals Effects of ingredients on sensory attributes of gluten-free breads available in the UK

2019 ◽  
Vol 121 (4) ◽  
pp. 926-936 ◽  
Author(s):  
Leonardi Louis ◽  
Ruth Fairchild ◽  
Anita Setarehnejad
Keyword(s):  
Food Industry ◽  
Consumer Preference ◽  
Quality Attributes ◽  
Gluten Free ◽  
Content Type ◽  
Alternative Ingredients ◽  
Significant Difference ◽  
Crumb Structure ◽  
The Uk ◽  
Practical Implications

Purpose The purpose of this paper is to evaluate the effects of alternative ingredients in three different gluten-free breads (GFBs) available in the UK market with regard to their quality attributes and consumer preference. Design/methodology/approach Three different GFB samples purchased from a UK retailer were visually assessed. Their quality attributes and consumer acceptability were analysed via an untrained taste panel (n=35) on Day 1. Texture was compared using a texture analyser on Days 1 and 8, to examine the differences between samples and the effects of ingredients towards staling. Findings Results from visual inspection showed that ingredients affected the appearance of samples, in terms of crumb structure, and both crumb and crust colour. Firmness and springiness were significantly different (p<0.05, p=0.007) between samples on Days 1 and 8 although no significant difference existed within each individual sample. Sensory analysis showed no significant differences between samples with respect to denseness, chewiness, crumbliness, dryness and overall preference. Research limitations/implications The ingredient combination in each bread differed, and thus it is not clear if the results are due to the incorporation of individual ingredient or a combination of them. Practical implications Results of this study will help food industry to make an easier decision on gluten-free ingredients. Social implications It will help people with coeliac disease and those who wish to remove gluten from their diets. Originality/value Overall, the study showed that the use of different ingredients affected the appearance, firmness and springiness of three GFBs available in the UK market. However, it did not affect denseness, chewiness, crumbliness, dryness or consumer preference. This indicates that a number of ingredient combinations are possible in the manufacturing of acceptable GFB.

scholarly journals Quality and sensory profile evaluation of gluten-free sapodilla-wild almond seed bar with stevia as partial sugar substitution

Food Research ◽  
2020 ◽  
Vol 4 (4) ◽  
pp. 1109-1115
Author(s):  
A. Akesowan ◽  
A. Choonhahirun ◽  
U. Jariyawaranugoon
Keyword(s):  
Physical Properties ◽  
Water Activity ◽  
Sensory Profile ◽  
Gluten Free ◽  
Sensory Acceptability ◽  
Overall Acceptability ◽  
Preference Mapping ◽  
Sensorial Attributes ◽  
Wild Almond

This research aimed to investigate the quality of fruit bars prepared with different ratios of sapodilla-wild almond seed (80:20 and 70:30 w/w) and sugar substitution with stevia (0, 1/3, and 2/3 as equivalent sweetness basis). Physical properties (moisture and water activity), sensory acceptability, and preference mapping of the fruit bars were investigated. The samples formulated with a higher proportion of sapodilla pulp had higher moisture and water activity than those with less sapodilla pulp. Increasing the sugar substitution with stevia tended to decrease the moisture and water activity of the fruit bars. The stevia incorporation had effects on sensorial attributes, especially the flavor depending on how much sapodilla pulp proportion used in fruit bar preparation. The fruit bars formulated with 80:20 of the sapodilla-wild almond seed and 2/3 sugar substitution and that with 70:30 and full-sugar perceived the highest overall acceptability. The preference mapping revealed the importance of product attributes, and the texture was an important attribute on sensorial acceptance. In conclusion, the fruit bar prepared with 80/20 of sapodilla-wild almond seed and 2/3 sugar substitution with stevia was the most preferred formulation.

scholarly journals Improvement of Quality Characteristics of Gluten-Free Cookies with the Addition of Xanthan Gum

2018 ◽  
Vol 1 (1) ◽  
pp. 529-535 ◽  
Author(s):  
Hülya Gül ◽  
Fatma Hayit ◽  
Sultan Acun ◽  
Semra Gül Tekeli
Keyword(s):  
Xanthan Gum ◽  
Corn Starch ◽  
Potato Starch ◽  
Quality Characteristics ◽  
Rice Starch ◽  
Gluten Free ◽  
Cereal Products ◽  
Quality Properties ◽  
Spread Ratio ◽  
Usage Level

Abstract People suffering from the celiac disease have to apply a strict gluten-free diet because this is the only effective management. Unfortunately removal of gluten results in low quality for many cereal products. The aimof this study was to improve the technological and sensorial characteristics of gluten-free cookies (GFC) by using xanthan gum (XG). XG was added at 0-1-2-3 and 4% levels into gluten-free flour mixture prepared with corn starch, corn flour, rice starch and potato starch. Quality properties of GFC were compared with gluten-containing soft wheat flour cookies (SWFC). Incorporation of XG to GFC significantly affected various parameters such as; lightness, yellowness, hardness, fracturability and thickness of GFC were increased while redness, width and spread ratio were decreased. Moisture and water activity of GFC with no added XG were observed much lower than GFC with XG. Addition of XG to GFC also improved the sensorial scores significantly. The addition of xanthan gum was improved technological and sensorial quality characteristics of GFC and usage level of 3% XG resulted in these scores similar to that of a wheat SWFC.

scholarly journals Application of Hydrothermally Modified Sweet Potato Starch as a Substitute Additive for Soup Mixture

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
S. A. Senanayake ◽  
K. K. D. S. Ranaweera ◽  
A. Gunaratne ◽  
A. Bamunuarachchi
Keyword(s):  
Sweet Potato ◽  
Water Solubility ◽  
Corn Starch ◽  
Potato Starch ◽  
Chemical Properties ◽  
Plate Count ◽  
Sweet Potatoes ◽  
Food Ingredient ◽  
Overall Acceptability ◽  
Sweet Potato Starch

Potential application of modified sweet potato starch as a substitute thickener for corn starch was studied, by using native starches extracted from five different cultivars of sweet potatoes commonly available in Sri Lanka. Physicochemical properties (swelling power, water solubility index, pasting, and gelatinization) and digestibility of native and modified (heat-moisture treated, 20% moisture, 85°C for 6 hrs) starches were analysed. Modified Swp3 (Wariyapola white), Swp4 (Pallepola), and Swp5 (Malaysian) starches were selected based on the favourable conditions shown in the required physical and chemical properties and applied in a vegetable soup formula as a thickening aid. Corn starch added samples were kept as controls and the viscosity difference and sensory attributes were tested. Viscosity of the reconstituted soup powder and sensory analysis showed that Swp4 and Swp5 had significantly high level (P<0.05) of sensory quality and the average rank for mouth feel (taste), texture and overall acceptability was significantly high (P<0.05) in Swp5 added samples. Shelf life studies ensured 6 months of stability with negligible level of moisture increase and total plate count in air tight polypropylene packages at ambient temperatures (28–31°C). Results of this study revealed a possibility of applying physically modified Swp4 and Swp5 starches as a substituent food ingredient for commercially available corn starch to improve the thickness of food products.

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