scholarly journals Impact of Acorn Flour on Gluten-Free Dough Rheology Properties

Foods ◽  
2020 ◽  
Vol 9 (5) ◽  
pp. 560 ◽  
Author(s):  
R. Beltrão Martins ◽  
M. C. Nunes ◽  
L. M. M. Ferreira ◽  
J. A. Peres ◽  
A. I. R. N. A. Barros ◽  
...  
Keyword(s):  
Profile Analysis ◽  
Potato Starch ◽  
Pasting Properties ◽  
Fibre Content ◽  
Dough Rheology ◽  
Gluten Free ◽  
Food Ingredient ◽  
Texture Profile ◽  
Structural Capacity ◽  
Acorn Flour

Gluten is a fundamental ingredient in breadmaking, since is responsible for the viscoelastic behaviour of the dough. The lack of gluten has a critical effect on gluten-free dough, leading to less cohesive and less elastic doughs, and its replacement represents a challenge for bakery industry. However, dough rheology can be improved combining different ingredients with structural capacity and taking advantage from their interactions. Although acorn flour was used to bake bread even before Romans, nowadays is an underexploited resource. It presents good nutritional characteristics, particularly high fibre content and is naturally gluten free. The aim of this study was to use acorn flour as a gluten-free ingredient to improve dough rheology, following also market trends of sustainability and fibre-rich ingredients. Doughs were prepared with buckwheat and rice flours, potato starch and hydroxypropylmethylcellulose. Two levels of acorn flour (23% and 35% w/w) were tested and compared with control formulation. Micro-doughLAB was used to study mixing and pasting properties. Doughs were characterised using small amplitude oscillatory measurements (SAOS), with a controlled stress rheometer, and regarding Texture Profile Analysis (TPA) by a texturometer. Dietary fibre content and its soluble and insoluble fractions were also evaluated on the developed breads. Acorn flour showed promising technological properties as food ingredient for gluten-free baking (improved firmness, cohesiveness and viscoelasticity of the fermented dough), being an important fibre source.

scholarly journals Viscoelastic and Textural Characteristics of Gels Obtained from Potato Starch Roasted under Several Temperature-Time Conditions

2018 ◽  
Vol 2018 ◽  
pp. 1-11
Author(s):  
María D. Torres ◽  
Francisco Chenlo ◽  
Ramón Moreira
Keyword(s):  
Soluble Fraction ◽  
Profile Analysis ◽  
Amylose Content ◽  
Potato Starch ◽  
Degree Of Crystallinity ◽  
Texture Profile ◽  
Gel Texture ◽  
Apparent Amylose Content ◽  
Textural Parameters ◽  
Roasting Temperature

The influence of roasting conditions on the potato starch (PS) composition, solubility, crystallinity, gel-forming thermal profiles, and texture of the corresponding gels was studied. Thermorheological testing of roasted starches with (RPS) and without (RPSI) the soluble fraction was conducted on a stress-controlled rheometer. Texture profile analysis (TPA) was used to determine the RPS final gel texture. Solubility tests showed equivalent effects of starch roasting for samples treated at 190°C for 8 h (RPS190-8), 210°C for 6 h (RPS210-6), and 230°C for 4 h (RPS230-4). The apparent amylose content of RPS linearly increased with the decreasing degree of crystallinity. Elastic (G′) and viscous (G″) properties of RPS depended markedly on apparent amylose content and crystallinity. G′gel values of roasted starches linearly increased with the amylose content suggesting a promotion of the amylose breakdown with roasting temperature. Gels prepared with RPS roasted between 120 and 170°C exhibited intermediate strength and fully thermal reversible features. Roasting between 190 and 210°C favoured strong and fully thermal reversible gels. Although RPS230-4 gels exhibited similar strength to RPS190-8 and RPS210-4, no fully thermal reversible gels were obtained. The soluble fraction removal led to a drop the RPSI gels strength with increasing roasting temperature. No water syneresis was identified for RPS gels during one-week ageing, except for RPS230 gels. Relationships between textural parameters from TPA and viscoelastic gel properties determined by rheology were established.

scholarly journals Rheological and Textural Properties of Gluten Free Cookies based on Pearl Millet and Flaxseed

2020 ◽  
Vol 10 (5) ◽  
pp. 6565-6576 ◽  
Keyword(s):  
Celiac Disease ◽  
Pearl Millet ◽  
Profile Analysis ◽  
Wheat Gluten ◽  
Textural Properties ◽  
Gluten Free ◽  
Free Products ◽  
Texture Profile ◽  
Psyllium Husk ◽  
Common Term

Gluten is common term refered to proteins found in wheat and related grains which is responsible for elasticity of dough and chewy texture of final product. But gluten causes problems to patients suffering from celiac diseases hence gluten free diet is the only existing treatment for celiac disease today. This study was conducted with an objective to create a dough system composed of pearl millet and flaxseed proteins that would be able to reproduce the same rheological and textural properties as wheat gluten in cookie making. A dough mixture comprising of pearl millet and flaxseed were used to prepare gluten free cookies. Psyllium husk was used to provide gelling property to the gluten free dough. Different dough samples with varying concentrations of flaxseed flour (i.e. 15g, 17g, 20g, and 22.5g) were prepared and thus optimized by rheological testing of dough samples. The cookies formulated from different dough samples with varying flaxseed concentrations were tested for rheological properties and texture profile analysis of the formulations was done. This study indicated that it is feasible to develop gluten free cookies as a commercial snack towards the fast and emerging need of gluten free products for the patients suffering from celiac disease.

scholarly journals Rheology Methods as a Tool to Study the Impact of Whey Powder on the Dough and Breadmaking Performance of Wheat Flour

Fluids ◽  
2020 ◽  
Vol 5 (2) ◽  
pp. 50 ◽  
Author(s):  
Christine Macedo ◽  
Maria Cristiana Nunes ◽  
Isabel Sousa ◽  
Anabela Raymundo
Keyword(s):  
Wheat Flour ◽  
Negative Impact ◽  
Profile Analysis ◽  
Dough Rheology ◽  
Loaf Volume ◽  
Small Amplitude Oscillatory Shear ◽  
Texture Profile ◽  
Whey Powder ◽  
Frequency Sweeps ◽  
The Impact

Considering the nutritional value, whey is an excellent ingredient for the development of food products, in line with the concept of a circular economy for the reuse of industry by-products. The main objective of this work was to evaluate the impact of the whey addition on the rheology of wheat flour dough and breadmaking performance, using both empirical and fundamental methods. Different levels of commercial whey powder (0%, 12%, 16% and 20% w/w) were tested in a bread formulation previously optimized. Dough mixing tests were performed using Micro-doughLab and Consistograph equipment, to determine the water absorptions of different formulations and evaluate empirical rheology parameters related to mixing tolerances. Biaxial extension was applied by the Alveograph to simulate fermentation during the baking process. Fermented doughs were characterized in a Texturometer using penetration and extensibility tests, and by small amplitude oscillatory shear (SAOS) measurements, a fundamental rheology method, in a Rheometer applying frequency sweeps. Loaf volume and firmness were used to study the breadmaking quality. Despite a negative impact on the empirical rheology parameters of the dough and poorer baking results, the use of this by-product should be considered for nutritional and sustainability reasons. In addition, significant correlations (r2 > 0.60) between the dough rheology parameters obtained from the empirical measurements were established. Changes in the gluten structure were not accurately detected by the SAOS measurements and Texture Profile Analysis of the doughs, and a correlation between fundamental and empirical measurements was not found. Consistograph or Micro-doughLab devices can be used to estimate bread firmness. Extensional tests in the Texturometer, using SMS/Kieffer Dough and Gluten Extensibility Rig, may predict loaf volume.

scholarly journals Physicochemical and Digestion Properties of Potato Starch Were Modified by Complexing with Grape Seed Proanthocyanidins

Molecules ◽  
2020 ◽  
Vol 25 (5) ◽  
pp. 1123 ◽  
Author(s):  
Zirui Zhang ◽  
Jinhu Tian ◽  
Haitian Fang ◽  
Huiling Zhang ◽  
Xiangli Kong ◽  
...  
Keyword(s):  
Metabolic Diseases ◽  
Profile Analysis ◽  
Potato Starch ◽  
In Vitro Digestion ◽  
Grape Seed ◽  
Scanning Calorimetry ◽  
Continuous Increase ◽  
Texture Profile ◽  
Grape Seed Proanthocyanidins

Dietary intake of potato starch could induce a dramatic increase in blood glucose and is positively associated with chronic metabolic diseases (type II diabetes, cardiovascular disease, etc.). Grape seed proanthocyanidins (GSP) are known to decrease starch digestion by inhibiting digestive enzymes or changing the physicochemical properties of starch. In the present study, GSP were complexed with potato starch to prepare polyphenol–starch complexes. The physiochemical properties and digestibility of complexes were investigated by in vitro digestion model, X-ray diffraction, differential scanning calorimetry, rapid visco analyzer, Fourier transform infrared spectroscopy as well as texture profile analysis. Results indicated that the peak viscosity, breakdown, trough, and setback of the complexes disappeared, replaced by a special continuous increase in paste viscosity. The complexes showed a lower final viscosity and higher thermal stability with the increasing binding amount of GSP. GSP decreased the hardness of the complexes’ gel significantly. FT-IR indicated that GSP might interact with potato starch through noncovalent forces. Additionally, the complexes also showed a higher content of slowly digestible starch and resistant starch than that of the native starch. Thus, we inferred that the addition of GSP could modify the digestibility of potato starch and be an optional way to modify the starch with lower digestion.

Innovative use of date (Phoenix dactylifera L.) press cake in the food industry

2021 ◽  
pp. 2-9
Author(s):  
Marwa A. Sheir
Keyword(s):  
Press Cake ◽  
Profile Analysis ◽  
Waste Product ◽  
Phoenix Dactylifera ◽  
Food Ingredient ◽  
Texture Profile ◽  
Value Evaluation ◽  
Overall Acceptability ◽  
Phoenix Dactylifera L ◽  
Willingness To Buy

Introduction. Date press cake is a waste product of date juice making that can lead to potentially serious environmental problems if discarded in large amounts in open areas. Therefore, it needs to be utilized. Our study aimed to investigate the possibilities of using date press cake powder to formulate innovative ready-to-eat products – vegan biscuits and vegan protein bars. Study objects and methods. The food products under study were subjected to a palatability test, a nutritional value evaluation, a texture profile analysis, and a scanning electron microscopy, as well as a microbiological assay performed during 8 months of storage. Results and discussion. The palatability test showed that the biscuits supplemented with 10% date press cake had the best acceptable preference, compared to control, 5 and 15% date press cake samples. Our innovative vegan protein bar scored highest in overall acceptability, flavor, taste, texture, and willingness to buy, compared to the commercial vegan protein bar. Overall, our study showed that both of our products were safe to consume within 8 months. Additionally, our innovative protein bar and fortified biscuits had high proportions of the recommended dietary allowances for most nutrients for adolescents and athletes, especially for vegetarians. Conclusion. Date press cake can be successfully used as a food ingredient to produce new formulations of vegan protein bars. Additionally, it can be used as an alternative ingredient to improve the nutritional quality of vegan biscuits.

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 The Influence of Konjac Glucomannan on the Physicochemical and Rheological Properties and Microstructure of Canna Starch

Foods ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 422
Author(s):  
Yuanqin Liu ◽  
Qiaoli Chen ◽  
Fang Fang ◽  
Jiali Liu ◽  
Zhiying Wang ◽  
...  
Keyword(s):  
Rheological Properties ◽  
Profile Analysis ◽  
Optical Microscope ◽  
Pasting Properties ◽  
Konjac Glucomannan ◽  
Morphological Properties ◽  
Texture Profile ◽  
Microscope Images ◽  
Porous Microstructure ◽  
High Level

The addition of hydrocolloid is an effective method to improve the properties of native starch. However, few studies have investigated the effects of konjac glucomannan (KGM) on canna starch (CS). In this study, the effects of various KGM concentration on the pasting, rheological, textural, and morphological properties of CS were investigated. The addition of KGM significantly increased CS’s pasting viscosities. Incorporation of KGM in CS at a relatively high level (1.2% w/w) exerted a significant influence on the pasting properties of CS. The consistency coefficient of CS was notably increased by KGM (from 43.6 to 143.3 Pa·sn) and positively correlated positive with KGM concentration. KGM concentration at a relatively high level (1.2% w/w) increased the elasticities and cohesiveness of CS by 53.3% and 88.0%, respectively, in texture profile analysis. The polarized optical microscope images indicated that KGM played an important part in protecting the crystalline structure of CS during heating. A denser porous microstructure with a filamentous network was observed in gelatinized KGM/CS mixtures as compared with the CS control. This research advances the knowledge of interactions between KGM and CS and opens possibilities to improve rheological properties of CS and to develop its new functionalities with KGM addition.

scholarly journals The Effect of Tamarind Seed Gum on the Qualities of Gluten-Free Cakes

Processes ◽  
2020 ◽  
Vol 8 (3) ◽  
pp. 318
Author(s):  
Shao-Chi Wu ◽  
Yung-Shin Shyu ◽  
Yi-Wen Tseng ◽  
Wen-Chieh Sung
Keyword(s):  
Shelf Life ◽  
Wheat Flour ◽  
Cold Water ◽  
Profile Analysis ◽  
Rice Flour ◽  
Water Soluble ◽  
Gluten Free ◽  
Texture Profile ◽  
Tamarind Seed ◽  
Seed Gum

The effect of 0.2%, 0.4%, and 0.8% cold-water soluble tamarind seed gum on batter density, viscosity, and volume of gluten-free layer cakes made with rice flour was evaluated herein. It was observed that the addition of 0.4% tamarind seed gum gave better cake batter volume and was similar to cakes made with wheat flour. Texture profile analysis, color, proximate composition, water activity, total phenolics content, shelf life, and a sensory evaluation of a gluten-free cake with 0.4% tamarind seed gum were compared to a cake made with wheat flour and rice flour. Gluten-free cakes made with 0.4% tamarind seed gum had higher dietary fiber, sensory scores (appearance, texture, and overall acceptability), and longer shelf life than that of the control. Incorporation of 0.4% tamarind seed gum is recommended for gluten-free baked products as it results in more desirable sensory scores and a longer shelf life.

scholarly journals Effect of addition of starches of different botanical origin on the texture and rheological properties of set-style yogurts

2007 ◽  
Vol 23 (5-6-2) ◽  
pp. 95-102 ◽  
Author(s):  
D. Najgebauer-Lejko ◽  
M. Sady ◽  
T. Grega ◽  
B. Faber ◽  
J. Domagała ◽  
...  
Keyword(s):  
Rheological Properties ◽  
Profile Analysis ◽  
Potato Starch ◽  
Botanical Origin ◽  
Maize Starch ◽  
Flow Curves ◽  
Series Introduction ◽  
Texture Profile ◽  
Waxy Maize ◽  
Textural Parameters

The aim of the present study was to estimate an effect of addition of different native starches i.e.: potato, maize, waxy maize and tapioca on the textural (Texture Profile Analysis) and rheological properties (apparent dynamic viscosity, flow curves) of set-style cow?s yogurts. All analyses were done on fresh yogurts and after 1 and 3 weeks of storage at 4?C in three series. Introduction of all starches to the yogurt formula resulted in higher viscosity and improvement of all textural parameters except hardness. Addition of maize starch caused the highest apparent viscosity value and waxy maize starch supplementation led to the lowest hardness. Also the shape of flow curves was highly affected by the kind of starch added to the processing milk. Generally, maize and waxy maize starch additives resulted in higher values of shear stress when compared to the plain yogurt, whereas yogurt supplemented with potato starch demonstrated lower values of that parameter.

scholarly journals Influence of Oxalis tuberosa pregelatinized flour on rheological properties of gluten-free dough and quality of pan bread

2015 ◽  
Vol 1 (1) ◽  
Author(s):  
Salvador Espino-Manzano ◽  
S Espino-Manzano ◽  
Norma Güemes-Vera ◽  
N Güemes-Vera ◽  
Jorge Chanona-Pérez J
Keyword(s):  
Wheat Flour ◽  
Profile Analysis ◽  
Gluten Free ◽  
Free Products ◽  
Oxalis Tuberosa ◽  
Texture Profile ◽  
Pan Bread ◽  
The One ◽  
Home Consumption

Oxalis tuberosa (Ot) is a tuber of Andean origin used mainly for home consumption. The combination of flours and starches used for the production of gluten free products intended mainly for people with celiac disease. The texture properties of dough and bread are measured in the rheological tests texture profile analysis (TPA) and extensibility. Found that increased hardness parameter in the gluten-free dough compared to wheat flour increasing as pregelatinized Oxalis tuberosa (OtP) was added, contrary to the cohesiveness and springiness, diminishing and affected the quality of the final product structure and volume. The treatment supplemented with 10% (T2) of OtP was the one that took a closer control made with wheat flour (TTR) improved behaviour and properties of gluten-free controls (TGF) presenting a lower hardness and cohesiveness more. In the affective sensory evaluation were no significant differences (P> 0.05) between TTR and T2 were found.

Sign in / Sign up

Export Citation Format

Share Document