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Echavarría JAC, El Hajj S, Irankunda R, Selmeczi K, Paris C, Udenigwe CC, Canabady-Rochelle L. Screening, separation and identification of metal-chelating peptides for nutritional, cosmetics and pharmaceutical applications. Food Funct 2024; 15:3300-3326. [PMID: 38488016 DOI: 10.1039/d3fo05765h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Metal-chelating peptides, which form metal-peptide coordination complexes with various metal ions, can be used as biofunctional ingredients notably to enhance human health and prevent diseases. This review aims to discuss recent insights into food-derived metal-chelating peptides, the strategies set up for their discovery, their study, and identification. After understanding the overall properties of metal-chelating peptides, their production from food-derived protein sources and their potential applications will be discussed, particularly in nutritional, cosmetics and pharmaceutical fields. In addition, the review provides an overview of the last decades of progress in discovering food-derived metal-chelating peptides, addressing several screening, separation and identification methodologies. Furthermore, it emphasizes the methods used to assess peptide-metal interaction, allowing for better understanding of chemical and thermodynamic parameters associated with the formation of peptide-metal coordination complexes, as well as the specific amino acid residues that play important roles in the metal ion coordination.
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Affiliation(s)
| | - Sarah El Hajj
- Université de Lorraine, CNRS, LRGP, F-54000 Nancy, France.
| | | | | | - Cédric Paris
- Université de Lorraine, LIBIO, F-54000 Nancy, France
| | - Chibuike C Udenigwe
- School of Nutrition Science, University of Ottawa, Ottawa, Ontario, K1H 8M5, Canada
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2
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Li F, Li T, Zhao J, Fan M, Qian H, Li Y, Wang L. Unraveling the deterioration mechanism of dough during whole wheat flour processing: A case study of gluten protein containing arabinoxylan with different molecular weights. Food Chem 2024; 432:137199. [PMID: 37633141 DOI: 10.1016/j.foodchem.2023.137199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 07/31/2023] [Accepted: 08/16/2023] [Indexed: 08/28/2023]
Abstract
This study aims to the effect of arabinoxylan (AX) on gluten quality. Ultrasonic treatment is utilized to degrade water unextractable arabinoxylans (WUAX) from wheat bran, which obtains three molecular weights of AX. The results indicate that the shear viscosity and particle size of AX were decreased and the ζ-potential was increased after ultrasonic treatment. Analysis of the gluten shows that the free SH of gluten with 6% WUAX, SAX10, and SAX30 (ultrasound duration for 10 min and 30 min) was increased by 51.9%, 48.1%, and 17.0%, respectively, whereas the free SH of 2% SAX30-gluten was increased by 19.8%. Furthermore, WUAX impaired the viscoelasticity properties of gluten, while SAX30 improved the viscoelasticity of gluten. WUAX induced the open, fragile, and discontinuous structure of gluten. On the contrary, SAX30 promoted the formation of the compact and regular gluten structure. Overall, ultrasonic as a non-chemical treatment could be used to improve the quality of whole-wheat foods.
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Affiliation(s)
- Fan Li
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Food, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China
| | - Tingting Li
- Department of Food Science and Engineering, College of Light Industry and Food Engineering, Nanjing Forestry University, 159 Longpan Road, Nanjing 210037, China
| | - Jiajia Zhao
- College of Cooking Science and Technology, Jiangsu College of Tourism, Yangzhou, 225000, China
| | - Mingcong Fan
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Food, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China
| | - Haifeng Qian
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Food, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China
| | - Yan Li
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Food, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China
| | - Li Wang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Food, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China.
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3
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Li M, Li L, Sun B, Ma S. Interaction of wheat bran dietary fiber-gluten protein affects dough product: A critical review. Int J Biol Macromol 2024; 255:128199. [PMID: 37979754 DOI: 10.1016/j.ijbiomac.2023.128199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 11/05/2023] [Accepted: 11/15/2023] [Indexed: 11/20/2023]
Abstract
Wheat bran dietary fiber (WBDF) is an emerging food additive used for improving the nutritional value of dough products, albeit its adverse effects cannot be ignored. The dilution effect, mechanical shear effect, competitive water absorption, and steric hindrance of WBDF, as well as the non-covalent binding between WBDF and gluten protein, are considered the key mechanisms underlying the WBDF-gluten protein interaction. However, current studies on the interaction are mostly limited to the impact of the interaction on gluten protein and are rarely focused on the quality of products. Therefore, the effects of the interaction on the structural characteristics and aggregation behavior of gluten protein and multiple involved mechanisms are discussed in this review. On this basis, these changes are systematically related to the gluten network structure, dough properties, and product quality. Mitigation measures corresponding to negative impacts also need to be elaborated to guide and standardize the production and development of dough products containing WBDF.
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Affiliation(s)
- Mengyuan Li
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou, Henan, China
| | - Li Li
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou, Henan, China
| | - Binghua Sun
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou, Henan, China
| | - Sen Ma
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou, Henan, China.
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4
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Ma W, Shan J, Wang M, Xie J, Chen Y, Sun N, Song Y, Hu X, Yu Q. Effects of Xanthan gum and Potassium carbonate on the quality and flavor properties of frozen Jiuniang doughs. Int J Biol Macromol 2023; 253:127191. [PMID: 37804886 DOI: 10.1016/j.ijbiomac.2023.127191] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 09/06/2023] [Accepted: 09/29/2023] [Indexed: 10/09/2023]
Abstract
Chinese Jiuniang (CJ) is a flavorful and nutritious food, but underutilized in frozen dough (FD) production. In addition, frozen storage can harm FD's gluten structure and degrade quality and flavor. Therefore, the impacts of two excellent protective agents (XG-Xanthan Gum; PC-Potassium Carbonate) on frozen Jiuniang dough (F-JD) quality and flavor during dynamic freezing were investigated. The results suggested that adding XG conferred F-JD with good processing stability, maintained the bound water levels, stabilized rheological properties, diminished ice crystal damage to the protein structure, and inhibited the increase in frozen water content during the freezing process. In contrast, although PC reduced free water production during freezing, it increased dough hardness and offered less protein protection than XG. Additionally, GC-QTOF/MS analysis showed that adding XG during freezing increased the relative content of pleasant flavor compounds like Phenylethyl Alcohol and decreased undesirable ones like Hexanal. Moreover, PC lowered the relative content of undesirable flavor substances (Formic acid) but reduced the relative content of beneficial flavor compounds (1-Hexanol). Importantly, the study confirmed that XG maintained the new F-JD product's storage quality during dynamic freezing. In conclusion, this study broadens CJ's application possibilities and provides new insights into mechanisms for preserving F-JD's quality and flavor.
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Affiliation(s)
- Wenjie Ma
- State Key Laboratory of Food Science and Resources, China-Canada Joint Laboratory of Food Science and Technology (Nanchang), Key Laboratory of Bioactive Polysaccharides of Jiangxi Province, Nanchang University, 235 Nanjing East Road, Nanchang 330047, China
| | - Jialuo Shan
- State Key Laboratory of Food Science and Resources, China-Canada Joint Laboratory of Food Science and Technology (Nanchang), Key Laboratory of Bioactive Polysaccharides of Jiangxi Province, Nanchang University, 235 Nanjing East Road, Nanchang 330047, China
| | - Mengyao Wang
- State Key Laboratory of Food Science and Resources, China-Canada Joint Laboratory of Food Science and Technology (Nanchang), Key Laboratory of Bioactive Polysaccharides of Jiangxi Province, Nanchang University, 235 Nanjing East Road, Nanchang 330047, China
| | - Jianhua Xie
- State Key Laboratory of Food Science and Resources, China-Canada Joint Laboratory of Food Science and Technology (Nanchang), Key Laboratory of Bioactive Polysaccharides of Jiangxi Province, Nanchang University, 235 Nanjing East Road, Nanchang 330047, China
| | - Yi Chen
- State Key Laboratory of Food Science and Resources, China-Canada Joint Laboratory of Food Science and Technology (Nanchang), Key Laboratory of Bioactive Polysaccharides of Jiangxi Province, Nanchang University, 235 Nanjing East Road, Nanchang 330047, China
| | - Nan Sun
- State Key Laboratory of Food Science and Resources, China-Canada Joint Laboratory of Food Science and Technology (Nanchang), Key Laboratory of Bioactive Polysaccharides of Jiangxi Province, Nanchang University, 235 Nanjing East Road, Nanchang 330047, China
| | - Yiming Song
- State Key Laboratory of Food Science and Resources, China-Canada Joint Laboratory of Food Science and Technology (Nanchang), Key Laboratory of Bioactive Polysaccharides of Jiangxi Province, Nanchang University, 235 Nanjing East Road, Nanchang 330047, China
| | - Xiaobo Hu
- State Key Laboratory of Food Science and Resources, China-Canada Joint Laboratory of Food Science and Technology (Nanchang), Key Laboratory of Bioactive Polysaccharides of Jiangxi Province, Nanchang University, 235 Nanjing East Road, Nanchang 330047, China
| | - Qiang Yu
- State Key Laboratory of Food Science and Resources, China-Canada Joint Laboratory of Food Science and Technology (Nanchang), Key Laboratory of Bioactive Polysaccharides of Jiangxi Province, Nanchang University, 235 Nanjing East Road, Nanchang 330047, China.
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5
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Vidal LM, Ewigmann H, Schuster C, Alpers T, Scherf KA, Jekle M, Becker T. Microscopic analysis of gluten network development under shear load-combining confocal laser scanning microscopy with rheometry. J Texture Stud 2023; 54:926-935. [PMID: 37605805 DOI: 10.1111/jtxs.12796] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 08/02/2023] [Accepted: 08/03/2023] [Indexed: 08/23/2023]
Abstract
A comprehensive in-situ analysis of the developing gluten network during kneading is still a gap in cereal science. With an in-line microscale shear kneading and measuring setup in a conventional rheometer, a first step was taken in previous works toward fully comprehensible gluten network development evaluation. In this work, this setup was extended by an in-situ optical analysis of the evolving gluten network. By connecting a laser scanning microscope with a conventional rheometer, the evaluation of the rheological and optical protein network evolution was possible. An image processing tool for analyzing the protein network was applied for evaluating the gluten network development in a wheat dough during the shear kneading process. This network evaluation was possible without interruption or invasive sample transfer comparing it to former approaches. The shear kneading system was able to produce a fully developed dough matrix within 125% of the reference dough development time in a classical kneader. The calculated network connectivity values from frequency testing ranged over all samples was in good agreement with traditional kneaded wheat dough just over peak consistency.
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Affiliation(s)
- Leonhard Maria Vidal
- Research Group Cereal Technology and Process Engineering, Institute of Brewing and Beverage Technology, Technical University of Munich, Freising, Germany
| | - Hans Ewigmann
- Research Group Cereal Technology and Process Engineering, Institute of Brewing and Beverage Technology, Technical University of Munich, Freising, Germany
| | - Clemens Schuster
- Leibniz Institute for Food Systems Biology at the Technical University of Munich, Freising, Germany
| | - Thekla Alpers
- Research Group Cereal Technology and Process Engineering, Institute of Brewing and Beverage Technology, Technical University of Munich, Freising, Germany
| | - Katharina Anne Scherf
- Department of Bioactive and Functional Food Chemistry, Institute of Applied Biosciences, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Mario Jekle
- Department of Plant-Based Foods, Institute of Food Science and Biotechnology, University of Hohenheim, Stuttgart, Germany
| | - Thomas Becker
- Research Group Cereal Technology and Process Engineering, Institute of Brewing and Beverage Technology, Technical University of Munich, Freising, Germany
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6
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Zhang X, Blennow A, Jekle M, Zörb C. Climate-Nutrient-Crop Model: Novel Insights into Grain-Based Food Quality. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023. [PMID: 37384408 DOI: 10.1021/acs.jafc.3c01076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/01/2023]
Abstract
Mineral nutrients spatiotemporally participate in the biosynthesis and accumulation of storage biopolymers, which directly determines the harvested grain yield and quality. Optimizing fertilizer nutrient availability improves the grain yield, but quality aspects are often underestimated. We hypothesize that extensive mineral nutrients have significant effects on the biosynthesis, content, and composition of storage proteins, ultimately determining physicochemical properties and food quality, particularly in the context of climate change. To investigate this, we hierarchized 16 plant mineral nutrients and developed a novel climate-nutrient-crop model to address the fundamental question of the roles of protein and starch in grain-based food quality. Finally, we recommend increasing the added value of mineral nutrients as a socioeconomic strategy to enhance agro-food profitability, promote environmental sustainability, and improve climate resilience.
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Affiliation(s)
- Xudong Zhang
- Institute of Crop Science, Quality of Plant Products, University of Hohenheim, 70599 Stuttgart, Germany
| | - Andreas Blennow
- Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, 1871 Frederiksberg C, Denmark
| | - Mario Jekle
- Department of Plant-Based Foods, Institute of Food Science and Biotechnology, University of Hohenheim, 70599 Stuttgart, Germany
| | - Christian Zörb
- Institute of Crop Science, Quality of Plant Products, University of Hohenheim, 70599 Stuttgart, Germany
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Khan MJ, Jovicic V, Zbogar-Rasic A, Zettel V, Delgado A, Hitzmann B. Influence of Non-Thermal Plasma Treatment on Structural Network Attributes of Wheat Flour and Respective Dough. Foods 2023; 12:foods12102056. [PMID: 37238874 DOI: 10.3390/foods12102056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 05/14/2023] [Accepted: 05/16/2023] [Indexed: 05/28/2023] Open
Abstract
Due to its "generally recognized as safe status" (GRAS) and moderate treatment temperatures, non-thermal plasma (NTP) has lately been considered a suitable replacement for chemicals in the modification of food properties and for preserving food quality. One of the promising areas for the application of NTP is the treatment of wheat flour, leading to improved flour properties and product quality and consequently to higher customer satisfaction. In the present research, the German wheat flour type 550, equivalent to all-purpose flour, was treated using NTP in a rotational reactor to determine the influence of short treatment times (≤5 min) on the properties of flour (moisture and fat content, protein, starch, color, microbial activity, and enzymes), dough (visco-elastic properties, starch, wet and dry gluten, and water absorption), and baking products (color, freshness, baked volume, crumb structure, softness, and elasticity). Based on the properties of NTP, it was expected that even very short treatment times would have a significant effect on the flour particles, which could positively affect the quality of the final baking product. Overall, the experimental analysis showed a positive effect of NTP treatment of wheat flour, e.g., decreased water activity value (<0.7), which is known to positively affect flour stability and product shelf life; dough stability increased (>8% after 5 min. treatment); dough extensibility increased (ca. 30% after 3 min treatment); etc. Regarding the baking product, further positive effects were detected, e.g., enhanced product volume (>9%), improved crumb whiteness/decreased crumb yellowness, softening of breadcrumb without a change in elasticity, and limited microorganism and enzymatic activity. Furthermore, no negative effects on the product quality were observed, even though further food quality tests are required. The presented experimental research confirms the overall positive influence of NTP treatment, even for very low treatment times, on wheat flour and its products. The presented findings are significant for the potential implementation of this technique on an industrial level.
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Affiliation(s)
- Muhammad Jehanzaib Khan
- Institute of Fluid Mechanics (LSTM), Friedrich-Alexander-University Erlangen-Nuremberg (FAU), 91058 Erlangen, Germany
| | - Vojislav Jovicic
- Institute of Fluid Mechanics (LSTM), Friedrich-Alexander-University Erlangen-Nuremberg (FAU), 91058 Erlangen, Germany
| | - Ana Zbogar-Rasic
- Institute of Fluid Mechanics (LSTM), Friedrich-Alexander-University Erlangen-Nuremberg (FAU), 91058 Erlangen, Germany
| | - Viktoria Zettel
- Department of Process Analytics and Cereal Science, University of Hohenheim, 70599 Stuttgart, Germany
| | - Antonio Delgado
- Institute of Fluid Mechanics (LSTM), Friedrich-Alexander-University Erlangen-Nuremberg (FAU), 91058 Erlangen, Germany
- German Engineering Research and Development Center, LSTME Busan, Busan 46742, Republic of Korea
| | - Bernd Hitzmann
- Department of Process Analytics and Cereal Science, University of Hohenheim, 70599 Stuttgart, Germany
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Sivakumar C, Findlay CRJ, Karunakaran C, Paliwal J. Non-destructive characterization of pulse flours-A review. Compr Rev Food Sci Food Saf 2023; 22:1613-1632. [PMID: 36880584 DOI: 10.1111/1541-4337.13123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 12/16/2022] [Accepted: 01/26/2023] [Indexed: 03/08/2023]
Abstract
The consumption of plant-based proteins sourced from pulses is sustainable from the perspective of agriculture, environment, food security, and nutrition. Increased incorporation of high-quality pulse ingredients into foods such as pasta and baked goods is poised to produce refined food products to satisfy consumer demand. However, a better understanding of pulse milling processes is required to optimize the blending of pulse flours with wheat flour and other traditional ingredients. A thorough review of the state-of-the-art on pulse flour quality characterization reveals that research is required to elucidate the relationships between the micro- and nanoscale structures of these flours and their milling-dependent properties, such as hydration, starch and protein quality, components separation, and particle size distribution. With advances in synchrotron-enabled material characterization techniques, there exist a few options that have the potential to fill knowledge gaps. To this end, we conducted a comprehensive review of four high-resolution nondestructive techniques (i.e., scanning electron microscopy, synchrotron X-ray microtomography, synchrotron small-angle X-ray scattering, and Fourier-transformed infrared spectromicroscopy) and a comparison of their suitability for characterizing pulse flours. Our detailed synthesis of the literature concludes that a multimodal approach to fully characterize pulse flours will be vital to predicting their end-use suitability. A holistic characterization will help optimize and standardize the milling methods, pretreatments, and post-processing of pulse flours. Millers/processors will benefit by having a range of well-understood pulse flour fractions to incorporate into food formulations.
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Affiliation(s)
- Chitra Sivakumar
- Biosystems Engineering, University of Manitoba, Winnipeg, Manitoba, Canada
| | | | | | - Jitendra Paliwal
- Biosystems Engineering, University of Manitoba, Winnipeg, Manitoba, Canada
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Lu L, Zhu KX. Physicochemical and fermentation properties of pre-fermented frozen dough: Comparative study of frozen storage and freeze–thaw cycles. Food Hydrocoll 2023. [DOI: 10.1016/j.foodhyd.2022.108253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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10
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Shi Y, Li X, Qi Y, Manzoor MF, Cui S, Xu B. Investigating the positive effects of wrap-around resting on the qualities of semi-dried noodles through the quantitative analysis of gluten network. J Texture Stud 2023; 54:105-114. [PMID: 36136727 DOI: 10.1111/jtxs.12722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 09/15/2022] [Accepted: 09/18/2022] [Indexed: 11/30/2022]
Abstract
In this study, the dough sheet wrap-around was employed to assist the resting process of the semi-dried noodles comparatively with dough crumbs resting and common dough sheet resting. The gluten network quantitative analysis was carried out to investigate the positive impacts of dough sheet wrap-around resting in semi-dried noodles production. The results showed that the dough sheet wrap-around resting improved the color, surface smoothness, cooking qualities, and eating qualities of semi-dried noodles. Dough sheet wrap-around resting for 30 min significantly (p < 0.05) increased the surface smoothness and chewiness by 47.08% and 44.35%, respectively. Furthermore, increased extensibility in the transverse direction of dough sheets generated superior processing properties. The average protein length and width of dough sheets experienced a considerable (p < 0.05) reduction. In contrast, the branching rate was markedly (p < 0.05) augmented, which meant the distribution of gluten network was more uniform and denser. The total protein length and the number of protein network lines both significantly (p < 0.05) increased. The number of transverse protein network lines increased by 28.70%, which was much higher than that (5.77%) of the longitudinal direction. Conclusively, at the optimal dough sheet wrap-around time of 30 min, the higher-quality semi-dried noodles were produced by enhancing the gluten network.
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Affiliation(s)
- Yanan Shi
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Xue Li
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Yajing Qi
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | | | - Shirong Cui
- Jiangsu Xingyuan Food Technology Co. LTD, Yancheng, China
| | - Bin Xu
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
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11
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Liu G, Wang ZM, Du N, Zhang Y, Wei Z, Tang XJ, Zhao L, Li C, Deng YY, Zhang MW. Recombinant Rice Quiescin Sulfhydryl Oxidase Strengthens the Gluten Structure through Thiol/Disulfide Exchange and Hydrogen Peroxide Oxidation. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:9106-9116. [PMID: 35736502 DOI: 10.1021/acs.jafc.2c01652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Recombinant rice quiescin sulfhydryl oxidase (rQSOX) has the potential to improve the flour processing quality, but the mechanisms remain unclear. The effects of rQSOX on bread quality, dough rheology, and gluten structure and composition, with glucose oxidase as a positive control, were investigated. rQSOX addition could improve the dough processing quality, as proved by enhanced viscoelastic properties of dough as well as a softer crumb, higher specific volume, and lower moisture loss of bread. These beneficial effects were attributed to gluten protein polymerization and gluten network strengthening, evidenced by the improved concentration of SDS-insoluble gluten and formation of large gluten aggregates and the increased α-helix and β-turn conformation. Furthermore, decreased free sulfhydryl and increased dityrosine in gluten as well as improved H2O2 content in dough suggested that the rQSOX dough strengthening mechanism was mainly based on the formation of disulfide bonds and dityrosine cross-links in gluten by both thiol/disulfide direct exchange and hydrogen peroxide indirect oxidation pathways.
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Affiliation(s)
- Guang Liu
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, China
| | - Zhi-Ming Wang
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, China
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Nian Du
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, China
| | - Yan Zhang
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, China
| | - ZhenCheng Wei
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, China
| | - Xiao-Jun Tang
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, China
| | - Lei Zhao
- College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Chao Li
- School of Food Sciences and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Yuan-Yuan Deng
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, China
| | - Ming-Wei Zhang
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, China
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12
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Moll S, Zettel V, Delgado A, Hitzmann B. Rheological evaluation of wheat dough treated with ozone and ambient air during kneading and dough formation. Int J Food Sci Technol 2022. [DOI: 10.1111/ijfs.15974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sarah Moll
- Department of Process Analytics and Cereal Science, Institute of Food Science and Biotechnology University of Hohenheim Stuttgart Germany
| | - Viktoria Zettel
- Department of Process Analytics and Cereal Science, Institute of Food Science and Biotechnology University of Hohenheim Stuttgart Germany
| | - Antonio Delgado
- Department of Chemical and Biological Engineering Chair of Fluid Mechanics Institute of Fluid Mechanics (LSTM) Friedrich‐Alexander University Erlangen‐Nürnberg Germany
| | - Bernd Hitzmann
- Department of Process Analytics and Cereal Science, Institute of Food Science and Biotechnology University of Hohenheim Stuttgart Germany
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13
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Infrared Spectroscopy and Microstructural Assessment of Dough with Varying Wheat Gluten Fractions. FOOD ANAL METHOD 2022. [DOI: 10.1007/s12161-022-02331-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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14
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Ma Y, Wu D, Guo L, Yao Y, Yao X, Wang Z, Wu K, Cao X, Gao X. Effects of Quinoa Flour on Wheat Dough Quality, Baking Quality, and in vitro Starch Digestibility of the Crispy Biscuits. Front Nutr 2022; 9:846808. [PMID: 35495943 PMCID: PMC9043647 DOI: 10.3389/fnut.2022.846808] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Accepted: 03/18/2022] [Indexed: 11/17/2022] Open
Abstract
Quinoa is a pseudo-cereal which has excellent nutritional and functional properties due to its high content of nutrients, such as polyphenols and flavonoids, and therefore quinoa serves as an excellent supplement to make healthy and functional foods. The present study was aimed to evaluate the quality characteristics of wheat doughs and crispy biscuits supplemented with different amount of quinoa flour. The results showed that when more wheat flour was substituted by quinoa flour, proportion of unextractable polymeric protein to the total polymeric protein (UPP%) of the reconstituted doughs decreased and the gluten network structure was destroyed at a certain substitution level. The content of B-type starch and the gelatinization temperature of the reconstituted flours increased. The storage modulus, loss modulus, development time, and stability time of the dough increased as well. Moreover, hardness and toughness of the formulated crispy biscuits significantly decreased. Analyses suggested that starch digestibility was reduced and resistant starch content increased significantly. Taken together, quinoa flour improved dough rheological properties, enhanced the textural properties, and increased resistant starch content in crispy biscuits, thus adding to high nutritional value.
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Affiliation(s)
- Yanrong Ma
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, China
| | - Daying Wu
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, China
| | - Lei Guo
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, China
| | - Youhua Yao
- State Key Laboratory of Plateau Ecology and Agronomy, Qinghai Key Laboratory of Hulless Barley Genetics and Breeding, Qinghai Subcenter of National Hulless Barley Improvement, Qinghai University, Xining, China
| | - Xiaohua Yao
- State Key Laboratory of Plateau Ecology and Agronomy, Qinghai Key Laboratory of Hulless Barley Genetics and Breeding, Qinghai Subcenter of National Hulless Barley Improvement, Qinghai University, Xining, China
| | - Zhonghua Wang
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, China
| | - Kunlun Wu
- State Key Laboratory of Plateau Ecology and Agronomy, Qinghai Key Laboratory of Hulless Barley Genetics and Breeding, Qinghai Subcenter of National Hulless Barley Improvement, Qinghai University, Xining, China
- *Correspondence: Kunlun Wu,
| | - Xinyou Cao
- National Engineering Laboratory for Wheat and Maize, Key Laboratory of Wheat Biology and Genetic Improvement in North Yellow and Huai River Valley, Ministry of Agriculture, Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, China
- Xinyou Cao,
| | - Xin Gao
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, China
- Xin Gao,
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15
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Du J, Dang M, Jia Y, Xu Y, Li C. Persimmon tannin unevenly changes the physical properties, morphology, subunits composition and cross-linking types of gliadin and glutenin. Food Chem 2022; 387:132913. [PMID: 35421646 DOI: 10.1016/j.foodchem.2022.132913] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 03/24/2022] [Accepted: 04/04/2022] [Indexed: 11/18/2022]
Abstract
To answer which is the key component caused the alterations of gluten in the presence of persimmon tannin (PT), the changes on physical properties, morphology, subunits coposition and cross-linking types of glutenin and gliadin were investigated. The results showed that compared with gliadin, glutenin was more sensitive to PT due to the greater changes in the thermal stability, network structure and aggregation behavior. This might be explained by the remarkable decreases in soluble subunits content, free sulfhydryl groups (SH), disulfide bonds (SS) and free amino groups (-NH2) cross-linking of glutenin after 8% of PT addition, as well as the varying degree in subunits composition. Therefore, glutenin played a more important role in the changes in the properties and network structure of gluten induced by PT than gliadin. Our work provided a guidance for the incorporation of phenolic compounds in wheat flour-based products.
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Affiliation(s)
- Jing Du
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China
| | - Meizhu Dang
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; Henan University of Animal Husbandry and Economy, Henan 477100, China
| | - Yangyang Jia
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Yujuan Xu
- Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences, Key Laboratory of Functional Products, Ministry of Agriculture, Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, China.
| | - Chunmei Li
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
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16
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Ncube MB, Taylor J, Bean SR, Ioerger BP, Taylor JRN. Modification of zein dough functionality using kafirin as a coprotein. Food Chem 2022; 373:131547. [PMID: 34802810 DOI: 10.1016/j.foodchem.2021.131547] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 10/24/2021] [Accepted: 11/04/2021] [Indexed: 12/14/2022]
Abstract
Kafirin, sorghum prolamin, was investigated as a coprotein for zein as visco-elastic masses and in starch-based model doughs. Regular kafirin and kafirins from waxy and high protein digestibility (HD) sorghum crosses were studied. HPLC revealed that waxy-HD kafirin was of smaller molecular size and low in β-kafirin. It also had greater surface hydrophobicity. Kafirin addition to zein increased visco-elastic mass elasticity up to ≈50% stress-recovery, similar to wheat gluten. Waxy-HD kafirin gave the highest elasticity, possibly due to its hydrophobicity. Kafirin inclusion at 2:8 parts zein increased the tensile strength of model doughs. Maximum strength was, however, only 60% that of gluten-based dough. Kafirin from regular sorghum gave the highest strength, possibly because of greater disulphide-bonded polymerisation. Confocal laser scanning microscopy showed that zein-kafirin copolymers formed fairly linear fibrils in stretched doughs, indicating excellent compatibility between the proteins. Future research should establish how kafirin-zein copolymer performs in non-wheat flour products.
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Affiliation(s)
- Mphokuhle B Ncube
- Department of Consumer and Food Sciences and Institute for Food, Nutrition and Well-being, University of Pretoria, Private Bag X20, Hatfield 0028, Pretoria, South Africa
| | - Janet Taylor
- Department of Consumer and Food Sciences and Institute for Food, Nutrition and Well-being, University of Pretoria, Private Bag X20, Hatfield 0028, Pretoria, South Africa
| | - Scott R Bean
- Grain Quality and Structure Research Unit, CGAHR, USDA-ARS, Manhattan, KS, USA
| | - Brian P Ioerger
- Grain Quality and Structure Research Unit, CGAHR, USDA-ARS, Manhattan, KS, USA
| | - John R N Taylor
- Department of Consumer and Food Sciences and Institute for Food, Nutrition and Well-being, University of Pretoria, Private Bag X20, Hatfield 0028, Pretoria, South Africa.
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17
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García-Armenta E, Gutiérrez-López GF. Fractal Microstructure of Foods. FOOD ENGINEERING REVIEWS 2022. [DOI: 10.1007/s12393-021-09302-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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18
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Obadi M, Zhang J, He Z, Zhu S, Wu Q, Qi Y, Xu B. A review of recent advances and techniques in the noodle mixing process. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2021.112680] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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19
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Qazi WM, Ballance S, Kousoulaki K, Uhlen AK, Kleinegris DMM, Skjånes K, Rieder A. Protein Enrichment of Wheat Bread with Microalgae: Microchloropsis gaditana, Tetraselmis chui and Chlorella vulgaris. Foods 2021; 10:foods10123078. [PMID: 34945626 PMCID: PMC8700928 DOI: 10.3390/foods10123078] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 11/22/2021] [Accepted: 11/29/2021] [Indexed: 01/22/2023] Open
Abstract
Cell wall disrupted and dried Microchloropsis gaditana (Mg), Tetraselmis chui (Tc) and Chlorella vulgaris (Cv) microalgae biomasses, with or without ethanol pre-treatment, were added to wheat bread at a wheat flour substitution level of 12%, to enrich bread protein by 30%. Baking performance, protein quality and basic sensory properties were assessed. Compared to wheat, Mg, Tc and Cv contain higher amounts of essential amino acids and their incorporation markedly improved protein quality in the bread (DIAAS 57–66 vs. 46%). The incorporation of microalgae reduced dough strength and bread volume and increased crumb firmness. This was most pronounced for Cv and Tc but could be improved by ethanol treatment. Mg gave adequate dough strength, bread volume and crumb structure without ethanol treatment. To obtain bread of acceptable smell, appearance, and colour, ethanol treatment was necessary also for Mg as it markedly reduced the unpleasant smell and intense colour of all algae breads. Ethanol treatment reduced the relative content of lysine, but no other essential amino acids. However, it also had a negative impact on in vitro protein digestibility. Our results show that Mg had the largest potential for protein fortification of bread, but further work is needed to optimize pre-processing and assess consumer acceptance.
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Affiliation(s)
- Waqas Muhammad Qazi
- Nofima AS—Norwegian Institute of Food, Fisheries and Aquaculture Research, PB 210, NO-1431 Ås, Norway; (W.M.Q.); (S.B.); (A.K.U.)
| | - Simon Ballance
- Nofima AS—Norwegian Institute of Food, Fisheries and Aquaculture Research, PB 210, NO-1431 Ås, Norway; (W.M.Q.); (S.B.); (A.K.U.)
| | - Katerina Kousoulaki
- Nofima AS—Norwegian Institute of Food, Fisheries and Aquaculture Research, PB 1425 Oasen, NO-5844 Bergen, Norway;
| | - Anne Kjersti Uhlen
- Nofima AS—Norwegian Institute of Food, Fisheries and Aquaculture Research, PB 210, NO-1431 Ås, Norway; (W.M.Q.); (S.B.); (A.K.U.)
- Department of Plant Sciences, Norwegian University of Life Sciences, PB 5003, NO-1432 Ås, Norway
| | - Dorinde M. M. Kleinegris
- NORCE Norwegian Research Centre, Thormøhlensgate 53, NO-5006 Bergen, Norway;
- Department of Biological Sciences, University of Bergen, Thormøhlensgate 53, NO-5006 Bergen, Norway
| | - Kari Skjånes
- Division of Biotechnology and Plant Health, Norwegian Institute of Bioeconomy Research (NIBIO), PB 115, NO-1431 Ås, Norway;
| | - Anne Rieder
- Nofima AS—Norwegian Institute of Food, Fisheries and Aquaculture Research, PB 210, NO-1431 Ås, Norway; (W.M.Q.); (S.B.); (A.K.U.)
- Correspondence:
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20
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Li H, Ma Y, Pan Y, Yu L, Tian R, Wu D, Xie Y, Wang Z, Chen X, Gao X. Starch other than gluten may make a dominant contribution to wheat dough mixing properties: A case study on two near-isogenic lines. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.112413] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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21
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Influence of particle size uniformity on the filter cake resistance of physically and chemically modified fine particles. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.118966] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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22
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Hu X, Cheng L, Hong Y, Li Z, Li C, Gu Z. An extensive review: How starch and gluten impact dough machinability and resultant bread qualities. Crit Rev Food Sci Nutr 2021; 63:1930-1941. [PMID: 34423705 DOI: 10.1080/10408398.2021.1969535] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Wheat flour can form dough with a three-dimensional viscoelastic structure that is responsible for gas holding during fermentation and oven-rise, creating a typical fixed, open-cell foam structure of bread after baking. As the major components of dough, the continuous reticular skeleton formed by gluten proteins and the concentrated starch granules entrapped in gluten matrix predominantly determine dough rheological behaviors and bread qualities. This review surveys the latest literatures and draws out a conclusion from a plethora of information related to the filling effects of starch granules on gluten matrix and the cross-linking mechanisms between gluten proteins and starch granules, which is of great significance to provide sufficient scientific knowledge for development of bread with satisfactory attributes and quality control of end products.
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Affiliation(s)
- Xiaohui Hu
- School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Li Cheng
- School of Food Science and Technology, Jiangnan University, Wuxi, China.,Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, Jiangnan University, Wuxi, Jiangsu Province, China.,State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,Collaborative innovation center of food safety and quality control in Jiangsu province, Jiangnan University, Wuxi, Jiangsu, China
| | - Yan Hong
- School of Food Science and Technology, Jiangnan University, Wuxi, China.,Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, Jiangnan University, Wuxi, Jiangsu Province, China.,State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Zhaofeng Li
- School of Food Science and Technology, Jiangnan University, Wuxi, China.,Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, Jiangnan University, Wuxi, Jiangsu Province, China.,State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Caiming Li
- School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Zhengbiao Gu
- School of Food Science and Technology, Jiangnan University, Wuxi, China.,Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, Jiangnan University, Wuxi, Jiangsu Province, China.,State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,Collaborative innovation center of food safety and quality control in Jiangsu province, Jiangnan University, Wuxi, Jiangsu, China
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23
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Dough Rheological Properties, Microstructure and Bread Quality of Wheat-Germinated Bean Composite Flour. Foods 2021; 10:foods10071542. [PMID: 34359411 PMCID: PMC8304690 DOI: 10.3390/foods10071542] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 06/27/2021] [Accepted: 06/28/2021] [Indexed: 01/31/2023] Open
Abstract
Germinated bean flour (GBF) was obtained and incorporated in different levels (5%, 10%, 15%, 20% and 25%) into dough and bread made from refined wheat flour. The incorporation of GBF into wheat flour led to a decrease of the water absorption value, dough consistency, baking strength, extensibility and improved tolerance for mixing, total gas production and α-amylase activity. Tan δ increased in a frequency-dependent manner for the samples with a GBF addition, whereas the G’ and G” decreased with the increased value of the temperature. According to the microscopic structures of the dough samples, a decrease of the starch area may be clearly seen for the samples with high levels of GBF addition in wheat flour. The bread evaluation showed that the specific volume, porosity and elasticity increased, whereas the firmness, gumminess and chewiness decreased up to a level of 15% GBF addition in wheat flour. The color parameters L*, a* and b* of the bread samples indicated a darkening effect of GBF on the crumb and crust. From the sensory point of view, the bread up to a 15% GBF addition was well-appreciated by the panelists. According to the data obtained, GBF could be recommended for use as an improver, especially up to a level of 15% addition in the bread-making industry.
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24
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Ogilvie O, Roberts S, Sutton K, Gerrard J, Larsen N, Domigan L. The effect of dough mixing speed and work input on the structure, digestibility and celiac immunogenicity of the gluten macropolymer within bread. Food Chem 2021; 359:129841. [PMID: 33940468 DOI: 10.1016/j.foodchem.2021.129841] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 03/23/2021] [Accepted: 04/11/2021] [Indexed: 10/21/2022]
Abstract
Modern high-speed mechanical dough development (MDD) alters the gluten macropolymer's (GMP) structure. Changes to both the protein and food matrix structure can influence protein digestibility and immunogenicity. This study investigated the relationship between protein structural changes imparted by MDD and gluten's digestibility plus celiac reactivity. Dough was prepared at three mixing speeds (63 rpm, 120 rpm and 200 rpm) to different degrees of development (between 10 and 180% wh.kg-1). Protein structural changes were characterised by confocal microscopy, free thiol determination and protein extractability assays. MDD altered the structure of gluten within bread, changing the protein's surface area and macrostructure. Breads were digested using the INFOGEST in vitro protocol. Gluten's antigenicity and digestibility were monitored using ELISA and mass spectrometry, by monitoring the concentration of six immunogenic peptides causative of celiac disease. The structural changes imparted by mixing did not affect bread's digestibility or celiac reactivity.
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Affiliation(s)
- Olivia Ogilvie
- School of Biological Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand; Riddet Institute, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand; Plant & Food Research, Private Bag 4704, Christchurch Mail Centre, Christchurch 8140, New Zealand.
| | - Sarah Roberts
- Riddet Institute, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand; Plant & Food Research, Private Bag 4704, Christchurch Mail Centre, Christchurch 8140, New Zealand.
| | - Kevin Sutton
- Riddet Institute, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand; Plant & Food Research, Private Bag 4704, Christchurch Mail Centre, Christchurch 8140, New Zealand.
| | - Juliet Gerrard
- School of Biological Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand; Riddet Institute, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand; School of Chemical Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.
| | - Nigel Larsen
- Riddet Institute, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand; Plant & Food Research, Private Bag 4704, Christchurch Mail Centre, Christchurch 8140, New Zealand
| | - Laura Domigan
- School of Biological Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand; Riddet Institute, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand; Department of Chemical and Materials Engineering University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.
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25
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Arp CG, Correa MJ, Ferrero C. Improving quality: Modified celluloses applied to bread dough with high level of resistant starch. Food Hydrocoll 2021. [DOI: 10.1016/j.foodhyd.2020.106302] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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26
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The effect of baking time and temperature on gluten protein structure and celiac peptide digestibility. Food Res Int 2021; 140:109988. [DOI: 10.1016/j.foodres.2020.109988] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 12/08/2020] [Accepted: 12/09/2020] [Indexed: 12/20/2022]
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27
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Li M, Yue Q, Liu C, Zheng X, Hong J, Li L, Bian K. Comparative study of rheology and steamed bread quality of wheat dough and gluten: Starch doughs. J FOOD PROCESS PRES 2020. [DOI: 10.1111/jfpp.15160] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Mingfei Li
- College of Food Science and Engineering Henan University of Technology Zhengzhou P. R. China
| | - Qinghua Yue
- College of Food Science and Engineering Henan University of Technology Zhengzhou P. R. China
| | - Chong Liu
- College of Food Science and Engineering Henan University of Technology Zhengzhou P. R. China
| | - Xueling Zheng
- College of Food Science and Engineering Henan University of Technology Zhengzhou P. R. China
| | - Jing Hong
- College of Food Science and Engineering Henan University of Technology Zhengzhou P. R. China
| | - Limin Li
- College of Food Science and Engineering Henan University of Technology Zhengzhou P. R. China
| | - Ke Bian
- College of Food Science and Engineering Henan University of Technology Zhengzhou P. R. China
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28
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Alpers T, Tauscher V, Steglich T, Becker T, Jekle M. The Self-Enforcing Starch-Gluten System-Strain-Dependent Effects of Yeast Metabolites on the Polymeric Matrix. Polymers (Basel) 2020; 13:polym13010030. [PMID: 33374760 PMCID: PMC7795266 DOI: 10.3390/polym13010030] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 12/16/2020] [Accepted: 12/21/2020] [Indexed: 11/16/2022] Open
Abstract
The rheological behaviour of dough during the breadmaking process is strongly affected by the accumulation of yeast metabolites in the dough matrix. The impact of metabolites in yeasted dough-like concentrations on the rheology of dough has not been characterised yet for process-relevant deformation types and strain rates, nor has the effect of metabolites on strain hardening behaviour of dough been analysed. We used fundamental shear and elongational rheometry to study the impact of fermentation on the dough microstructure and functionality. Evaluating the influence of the main metabolites, the strongest impact was found for the presence of expanding gas cells due to the accumulation of the yeast metabolite CO2, which was shown to have a destabilising impact on the surrounding dough matrix. Throughout the fermentation process, the polymeric and entangled gluten microstructure was found to be degraded (−37.6% average vessel length, +37.5% end point rate). These microstructural changes were successfully linked to the changing rheological behaviour towards a highly mobile polymer system. An accelerated strain hardening behaviour (+32.5% SHI for yeasted dough) was promoted by the pre-extension of the gluten strands within the lamella around the gas cells. Further, a strain rate dependency was shown, as a lower strain hardening index was observed for slow extension processes. Fast extension seemed to influence the disruption of sterically interacting fragments, leading to entanglements and hindered extensibility.
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Affiliation(s)
- Thekla Alpers
- Research Group Cereal Technology and Process Engineering, Institute of Brewing and Beverage Technology, Technical University of Munich, 85354 Freising, Germany; (T.A.); (T.B.)
| | - Viviane Tauscher
- Dr. Oetker Technology Development Center, 19243 Wittenburg, Germany; (V.T.); (T.S.)
| | - Thomas Steglich
- Dr. Oetker Technology Development Center, 19243 Wittenburg, Germany; (V.T.); (T.S.)
| | - Thomas Becker
- Research Group Cereal Technology and Process Engineering, Institute of Brewing and Beverage Technology, Technical University of Munich, 85354 Freising, Germany; (T.A.); (T.B.)
| | - Mario Jekle
- Research Group Cereal Technology and Process Engineering, Institute of Brewing and Beverage Technology, Technical University of Munich, 85354 Freising, Germany; (T.A.); (T.B.)
- Correspondence: ; Tel.: +49-8161-71-3669
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29
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Understanding the role of gluten subunits (LMW, HMW glutenins and gliadin) in the networking behavior of a weak soft wheat dough and a strong semolina wheat flour dough and the relationship with linear and non-linear rheology. Food Hydrocoll 2020. [DOI: 10.1016/j.foodhyd.2020.106002] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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30
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Lu L, Xing JJ, Guo XN, Sun XH, Zhu KX. Enhancing the freezing–thawing tolerance of frozen dough using ε-poly-L-lysine treated yeast. FOOD BIOSCI 2020. [DOI: 10.1016/j.fbio.2020.100699] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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31
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Ogilvie O, Roberts S, Sutton K, Larsen N, Gerrard J, Domigan L. The use of microbial transglutaminase in a bread system: A study of gluten protein structure, deamidation state and protein digestion. Food Chem 2020; 340:127903. [PMID: 32889205 DOI: 10.1016/j.foodchem.2020.127903] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 08/06/2020] [Accepted: 08/19/2020] [Indexed: 02/08/2023]
Abstract
Microbial transglutaminase (mTG) catalyses the formation of protein crosslinks, deamidating glutamine in a side-reaction. Gluten deamidation by human tissue transglutaminase is critical to activate celiac disease pathogenesis making the addition of mTG to wheat-based products controversial. The ability of mTG (0-2000 U.kg-1) to alter gluten's structure, digestibility and the deamidation state of six immunogenic gluten peptides within bread was investigated. Gluten's structure was altered when mTG exceeded 100 U.kg-1, determined by confocal microscopy, extractability and free sulfhydryl assays. The effect of mTG on six immunogenic peptides was investigated by in vitro digestion (INFOGEST) and mass spectrometry. The addition of mTG to bread (0-2000 U.kg-1) did not alter the deamidation state or digestibility of the immunogenic peptides investigated. Overall, this investigation indicated that the addition of mTG to bread does not create activated gluten peptides. This analysis provides evidence for risk assessments of mTG as a food processing aid.
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Affiliation(s)
- Olivia Ogilvie
- School of Biological Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand; Riddet Institute, Massey University, Private Bag 11222, Palmerston North 4442, New Zealand; The New Zealand Institute for Plant and Food Research Limited, Private Bag 4704, Christchurch Mail Centre, Christchurch 8140, New Zealand; Department of Chemical and Materials Engineering The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.
| | - Sarah Roberts
- Riddet Institute, Massey University, Private Bag 11222, Palmerston North 4442, New Zealand; The New Zealand Institute for Plant and Food Research Limited, Private Bag 4704, Christchurch Mail Centre, Christchurch 8140, New Zealand
| | - Kevin Sutton
- Riddet Institute, Massey University, Private Bag 11222, Palmerston North 4442, New Zealand; The New Zealand Institute for Plant and Food Research Limited, Private Bag 4704, Christchurch Mail Centre, Christchurch 8140, New Zealand.
| | - Nigel Larsen
- Riddet Institute, Massey University, Private Bag 11222, Palmerston North 4442, New Zealand; The New Zealand Institute for Plant and Food Research Limited, Private Bag 4704, Christchurch Mail Centre, Christchurch 8140, New Zealand
| | - Juliet Gerrard
- School of Biological Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand; Riddet Institute, Massey University, Private Bag 11222, Palmerston North 4442, New Zealand; School of Chemical Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.
| | - Laura Domigan
- School of Biological Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand; Riddet Institute, Massey University, Private Bag 11222, Palmerston North 4442, New Zealand; Department of Chemical and Materials Engineering The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.
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Iuga M, Boestean O, Ghendov-Mosanu A, Mironeasa S. Impact of Dairy Ingredients on Wheat Flour Dough Rheology and Bread Properties. Foods 2020; 9:foods9060828. [PMID: 32599829 PMCID: PMC7353663 DOI: 10.3390/foods9060828] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 06/18/2020] [Accepted: 06/22/2020] [Indexed: 02/08/2023] Open
Abstract
The incorporation of dairy ingredients, such as milk or acid whey in bread, is advantageous considering their functional properties and the positive effects on consumers’ health. The introduction of an ingredient in bread making process requires the evaluation of dough behavior and final product quality. Thus, the influence of water replacement by milk or acid whey on the characteristics of wheat flour dough and bread was studied. Dynamic rheological measurements were performed in order to evaluate the viscoelastic properties of dough. Compared to the control, an increase of the elastic character of dough for samples with milk and a decrease for those with acid whey was observed. The resistance to deformation decreased when water was substituted with more than 25% milk and increased for samples with up to 25% acid whey. Higher maximum gelatinization temperatures were obtained when water was substituted by milk or acid whey. Bread crumb presented higher firmness, lower volume and porosity for samples with dairy ingredients compared to the control, therefore, replacement levels lower than 25% were recommended in order to minimize this negative effect. Bread elasticity, chewiness, resilience, pores density and size were improved at replacement levels lower than 25%, while for the sensory characteristics of the specialty bread, high scores were obtained. These results can be helpful for processors, in order to develop and optimize bread with dairy ingredients.
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Affiliation(s)
- Mădălina Iuga
- Faculty of Food Engineering, Ştefan cel Mare University, 13, Universităţii Street, 720229 Suceava, Romania;
| | - Olga Boestean
- Faculty of Food Technology, Technical University of Moldova, 168, Ștefan cel Mare Blvd., MD-2004 Chișinău, Moldova; (O.B.); (A.G.-M.)
| | - Aliona Ghendov-Mosanu
- Faculty of Food Technology, Technical University of Moldova, 168, Ștefan cel Mare Blvd., MD-2004 Chișinău, Moldova; (O.B.); (A.G.-M.)
| | - Silvia Mironeasa
- Faculty of Food Engineering, Ştefan cel Mare University, 13, Universităţii Street, 720229 Suceava, Romania;
- Correspondence: or
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Li S, Liu Y, Tong J, Yu L, Ding M, Zhang Z, Rehman AU, Majzoobi M, Wang Z, Gao X. The overexpression of high-molecular-weight glutenin subunit Bx7 improves the dough rheological properties by altering secondary and micro-structures of wheat gluten. Food Res Int 2020; 130:108914. [DOI: 10.1016/j.foodres.2019.108914] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 12/14/2019] [Accepted: 12/15/2019] [Indexed: 11/29/2022]
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34
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Dough rheology and loaf quality of wheat-cassava bread using different cassava varieties and wheat substitution levels. FOOD BIOSCI 2020. [DOI: 10.1016/j.fbio.2020.100529] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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35
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Dangi P, Chaudhary N, Khatkar B. Rheological and microstructural characteristics of low molecular weight glutenin subunits of commercial wheats. Food Chem 2019; 297:124989. [DOI: 10.1016/j.foodchem.2019.124989] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 06/01/2019] [Accepted: 06/10/2019] [Indexed: 10/26/2022]
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36
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Koga S, Rieder A, Ballance S, Uhlen AK, Veiseth-Kent E. Gluten-Degrading Proteases in Wheat Infected by Fusarium graminearum-Protease Identification and Effects on Gluten and Dough Properties. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:11025-11034. [PMID: 31502841 DOI: 10.1021/acs.jafc.9b03869] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Recently, we have observed a relationship between poor breadmaking quality and protease activities related to fungal infection. This study aims to identify potential gluten-degrading proteases secreted by fungi and to analyze effects of these proteases on rheological properties of dough and gluten. Fusarium graminearum-infected grain was used as a model system. Zymography showed that serine-type proteases secreted by F. graminearum degrade gluten proteins. Zymography followed by liquid chromatography-mass spectrometry (MS)/MS analysis predicted one serine carboxypeptidase and seven serine endo-peptidases to be candidate fungal proteases involved in gluten degradation. Effects of fungal proteases on the time-dependent rheological properties of dough and gluten were analyzed by small amplitude oscillatory shear rheology and large deformation extensional rheology. Our results indicate that fungal proteases degrade gluten proteins not only in the grain itself, but also during dough preparation and resting. Our study gives new insights into fungal proteases and their potential role in weakening of gluten.
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Affiliation(s)
- Shiori Koga
- Nofima AS , P.O. Box 210, NO-1431 Ås , Norway
| | - Anne Rieder
- Nofima AS , P.O. Box 210, NO-1431 Ås , Norway
| | | | - Anne Kjersti Uhlen
- Nofima AS , P.O. Box 210, NO-1431 Ås , Norway
- Department of Plant Sciences, Faculty of Biosciences , Norwegian University of Life Sciences , P.O. Box 5003, NO-1432 Ås , Norway
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Rubio-Merino J, Rubio-Hernández FJ. Activation energy for the viscoelastic flow: Analysis of the microstructure-at-rest of (water- and milk-based) fruit beverages. Food Chem 2019; 293:486-490. [PMID: 31151638 DOI: 10.1016/j.foodchem.2019.05.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 03/11/2019] [Accepted: 05/01/2019] [Indexed: 11/18/2022]
Abstract
Fresh fruit beverages are a tasty way to follow the recommendations of World Health Organization. A study on the rheological behaviour of water-based and milk-based fruit beverages with emphasis on the temperature effect was made. The power law model adjusted data of apparent viscosity. The flow index of each beverage was practically constant with temperature variation. Then, one could discuss the variation with temperature of the consistency index. This parameter decreased around 40% in both cases in the temperature interval 5-30 °C. The stability of beverages against the sedimentation of the fruit pulp was clearly affected by the increase of temperature. Viscoelastic moduli were obtained in the linear region. Temperature dependency of both moduli was described in the interval 5-30 °C. The activation energy for linear viscoelastic flow was slightly higher than the activation energy for viscous flow. This result was interpreted as an indication of the strength of the microstructure-at-rest.
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Affiliation(s)
- J Rubio-Merino
- Hospital Clínico Universitario Virgen de la Victoria, Málaga, Spain
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38
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Verbauwhede AE, Lambrecht MA, Jekle M, Lucas I, Fierens E, Shegay O, Brijs K, Delcour JA. Microscopic investigation of the formation of a thermoset wheat gluten network in a model system relevant for bread making. Int J Food Sci Technol 2019. [DOI: 10.1111/ijfs.14359] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Annelien E. Verbauwhede
- Laboratory of Food Chemistry and Biochemistry and Leuven Food Science and Nutrition Research Centre (LFoRCe) KU Leuven Kasteelpark Arenberg 20 B‐3001 Leuven Belgium
| | - Marlies A. Lambrecht
- Laboratory of Food Chemistry and Biochemistry and Leuven Food Science and Nutrition Research Centre (LFoRCe) KU Leuven Kasteelpark Arenberg 20 B‐3001 Leuven Belgium
| | - Mario Jekle
- Institute of Brewing and Beverage Technology Research Group Cereal Technology and Process Engineering Technical University of Munich Weihenstephaner Steig 20 85354 Freising Germany
| | - Isabelle Lucas
- Institute of Brewing and Beverage Technology Research Group Cereal Technology and Process Engineering Technical University of Munich Weihenstephaner Steig 20 85354 Freising Germany
| | - Ellen Fierens
- Laboratory of Food Chemistry and Biochemistry and Leuven Food Science and Nutrition Research Centre (LFoRCe) KU Leuven Kasteelpark Arenberg 20 B‐3001 Leuven Belgium
| | - Oksana Shegay
- Competence Center for Fermentation Puratos Group Rue Bourrie 12 B‐5300 Andenne Belgium
| | - Kristof Brijs
- Laboratory of Food Chemistry and Biochemistry and Leuven Food Science and Nutrition Research Centre (LFoRCe) KU Leuven Kasteelpark Arenberg 20 B‐3001 Leuven Belgium
| | - Jan A. Delcour
- Laboratory of Food Chemistry and Biochemistry and Leuven Food Science and Nutrition Research Centre (LFoRCe) KU Leuven Kasteelpark Arenberg 20 B‐3001 Leuven Belgium
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39
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Brandner S, Becker T, Jekle M. Classification of starch-gluten networks into a viscoelastic liquid or solid, based on rheological aspects — A review. Int J Biol Macromol 2019; 136:1018-1025. [DOI: 10.1016/j.ijbiomac.2019.06.160] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 06/14/2019] [Accepted: 06/21/2019] [Indexed: 12/01/2022]
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40
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Liu C, McClements DJ, Li M, Xiong L, Sun Q. Development of Self-Healing Double-Network Hydrogels: Enhancement of the Strength of Wheat Gluten Hydrogels by In Situ Metal-Catechol Coordination. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:6508-6516. [PMID: 31117498 DOI: 10.1021/acs.jafc.9b01649] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Wheat gluten, a byproduct of the wheat starch industry, is widely used as a dough strengthener and gelling agent. In this research, we developed novel double-network hydrogels by gelation of gluten using in situ metal-catechol coordination. The first network consisted of physically associated gluten molecules, while the second network consisted of Fe3+-cross-linked proanthocyanidins (PACs). Dynamic shear rheology experiments suggested that coordination of Fe3+ and PACs greatly enhanced the mechanical properties of the gluten hydrogels. The double-network hydrogels exhibited a 3-fold higher shear modulus than pure gluten hydrogels. The formation of bis- and tris-catechol-Fe3+ complexes between Fe3+ and PACs in the hydrogels was confirmed by ultraviolet-visible spectrometry and isothermal titration calorimetry (ITC). The ITC measurements of Fe3+ binding to PACs indicated a molar stoichiometry of 1:4 and a dissociation constant ( KD) of 24.9 × 10-9. When subject to repeated shear deformation-compression cycles, the hydrogels exhibited strong and rapid recovery of their rheological properties. The strong, self-healing characteristics of the double-network gluten hydrogels produced in this study may be useful for certain applications in the food, agriculture, biomedicine, and tissue-engineering industries.
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Affiliation(s)
- Chengzhen Liu
- College of Food Science and Engineering , Qingdao Agricultural University , 700 Changcheng Road , Chengyang District, Qingdao , Shandong 266109 , People's Republic of China
| | - David Julian McClements
- Department of Food Science , University of Massachusetts Amherst , Amherst , Massachusetts 01060 , United States
| | - Man Li
- College of Food Science and Engineering , Qingdao Agricultural University , 700 Changcheng Road , Chengyang District, Qingdao , Shandong 266109 , People's Republic of China
| | - Liu Xiong
- College of Food Science and Engineering , Qingdao Agricultural University , 700 Changcheng Road , Chengyang District, Qingdao , Shandong 266109 , People's Republic of China
| | - Qingjie Sun
- College of Food Science and Engineering , Qingdao Agricultural University , 700 Changcheng Road , Chengyang District, Qingdao , Shandong 266109 , People's Republic of China
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41
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42
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Lucas I, Petermeier H, Becker T, Jekle M. Definition of network types - Prediction of dough mechanical behaviour under shear by gluten microstructure. Sci Rep 2019; 9:4700. [PMID: 30886245 PMCID: PMC6423116 DOI: 10.1038/s41598-019-41072-w] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Accepted: 03/01/2019] [Indexed: 11/13/2022] Open
Abstract
This study defines network types of wheat gluten to describe spatial arrangements of gluten networks in relation to dough mechanical behaviour. To achieve a high variety in gluten arrangements, ten specific and unspecific gluten-modifying agents in increasing concentrations were added to wheat dough. Gluten microstructure was visualized by confocal laser scanning microscopy and quantified by protein network analysis. Dough rheological behaviour was determined by both oscillatory and creep-recovery tests. Based on correlation matrices and principal component analysis, six different network types were identified and associated to their rheological characteristics: a cleaved (low viscous), rigid (highly viscous), spread (viscoelastic), strengthened (viscoelastic), particulate and dense (highly viscous) or particulate and loose (low viscous) network. Furthermore, rheological dough properties of specifically gluten-modified samples were predicted with five microstructural gluten attributes (lacunarity, branching rate, end-point rate, protein width, average protein length) and assigned properly by the obtained partial least square model with an accuracy up to 90% (e.g., R2Y = 0.84 for G*, 0.85 for tanδ, 0.90 for Jmax). As a result, rheological properties of wheat doughs were predicted from microstructural investigations. This novel, quantitative definition of the relation between structure and mechanical behaviour can be used for developments of new wheat products with targeted properties.
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Affiliation(s)
- Isabelle Lucas
- Technical University of Munich, Institute of Brewing and Beverage Technology, Research Group Cereal Technology and Process Engineering, 85354, Freising, Germany
| | - Hannes Petermeier
- Technical University of Munich, Chair of Mathematical Modelling of Biological Systems, 85748, Garching, Germany
| | - Thomas Becker
- Technical University of Munich, Institute of Brewing and Beverage Technology, Research Group Cereal Technology and Process Engineering, 85354, Freising, Germany
| | - Mario Jekle
- Technical University of Munich, Institute of Brewing and Beverage Technology, Research Group Cereal Technology and Process Engineering, 85354, Freising, Germany.
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43
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Jekle M, Necula A, Jekle M, Becker T. Concentration dependent rate constants of sodium substitute functionalities during wheat dough development. Food Res Int 2019; 116:346-353. [PMID: 30716955 DOI: 10.1016/j.foodres.2018.08.047] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2018] [Revised: 08/15/2018] [Accepted: 08/18/2018] [Indexed: 11/25/2022]
Abstract
Chloride salts can serve as sodium chloride (NaCl) substitutes in wheat dough for sensory or technological reasons. Therefore, the effect of different substitutes on wheat dough development during mixing (optimum water absorption, dough development time, stability) and fermentation (maximum dough height) with a material-adapted water addition and mixing time were investigated. The substitutes had effects on all measures at a level of 2 g salt 100 g-1 wheat flour, with the exception of KCl. The intensity of the effect significantly followed the Hofmeister series due to an altered hydration behavior of the structure-determining gluten proteins. The experiments were supported by CLSM micrographs combined with image analysis. Next to an absolute substitution, the main focus of the study were concentration dependent functionalities of the chloride salts. Therefore, concentration dependent rate constants were calculated based on the application of different concentration levels of the chloride salts. These rate constants showed in all cases a similar tendency following the Hofmeister series.
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Affiliation(s)
- Mario Jekle
- Technical University of Munich, Institute of Brewing and Beverage Technology, Research Group Cereal Technology and Process Engineering, Weihenstephaner Steig 20, 85354 Freising, Germany.
| | - Andreea Necula
- Technical University of Munich, Institute of Brewing and Beverage Technology, Research Group Cereal Technology and Process Engineering, Weihenstephaner Steig 20, 85354 Freising, Germany
| | - Margit Jekle
- Technical University of Munich, Institute of Brewing and Beverage Technology, Research Group Cereal Technology and Process Engineering, Weihenstephaner Steig 20, 85354 Freising, Germany
| | - Thomas Becker
- Technical University of Munich, Institute of Brewing and Beverage Technology, Research Group Cereal Technology and Process Engineering, Weihenstephaner Steig 20, 85354 Freising, Germany
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Sun X, Chen M, Jia F, Hou Y, Hu SQ. Crystal Structure of Wheat Glutaredoxin and Its Application in Improving the Processing Quality of Flour. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:12079-12087. [PMID: 30346751 DOI: 10.1021/acs.jafc.8b03590] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Glutaredoxin (Grx) is a ubiquitous oxidoreductase that plays a vital role in maintaining cellular redox homeostasis. In comparison to Grx from other organisms, plant Grx is unique in that it has many isoforms, which, thus, suggests probably diverse functions and mechanisms. Therefore, structure-function characterization of plant Grx is necessary to have in-depth knowledge and explore its application in industry. In this study, wheat Grx (wGrx) was overexpressed and purified and the crystal structure of wGrx was determined at 2.94 Å resolution. Interestingly, the structure for the first time captured both the oxidized form and the transient state of reduced-oxidized wGrx in a crystal. The mutagenesis of wGrx suggests that it adopts a monothiol catalytic mechanism. wGrx has the ability to reduce wheat thioredoxin (wTrx), and this is the first example of the reduction of thioredoxin subgroup h class II by Grx. Flour farinograph and dynamic rheological analysis showed that wGrx together with wTrx has a positive effect on dough formation, which is probably attributed to the increased sodium dodecyl sulfate (SDS)-insoluble gluten macropolymer (GMP) through increasing the intermolecular disulfide bond induced by the wGrx-wTrx system. The results indicate great potential of wGrx-wTrx as a novel synergetic enzymatic additive and may be employed to fine-tune the processing performance of food related to the redox reaction.
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Affiliation(s)
- Xiaomei Sun
- School of Food Science and Engineering , South China University of Technology , Guangzhou , Guangdong 510641 , People's Republic of China
| | - Meirong Chen
- Graduate School of Life Science , Hokkaido University , Sapporo , Hokkaido 060-0810 , Japan
| | - Feng Jia
- School of Food Science and Engineering , South China University of Technology , Guangzhou , Guangdong 510641 , People's Republic of China
| | - Yi Hou
- State Key Laboratory of Pulp and Paper Engineering , South China University of Technology , Guangzhou , Guangdong 510640 , People's Republic of China
| | - Song-Qing Hu
- School of Food Science and Engineering , South China University of Technology , Guangzhou , Guangdong 510641 , People's Republic of China
- Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health (111 Center) , Guangzhou , Guangdong 510640 , People's Republic of China
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45
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Contardo I, Bouchon P. Enhancing Micro-CT methods to quantify oil content and porosity in starch-gluten matrices. J FOOD ENG 2018. [DOI: 10.1016/j.jfoodeng.2018.05.038] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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46
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Aguilera JM. The food matrix: implications in processing, nutrition and health. Crit Rev Food Sci Nutr 2018; 59:3612-3629. [DOI: 10.1080/10408398.2018.1502743] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- José Miguel Aguilera
- Department of Chemical and Bioprocess Engineering, Pontificia Universidad Católica de Chile, Santiago, Chile
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47
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INVESTIGATIONS OF THE FUNCTIONAL AND TECHNOLOGICAL PROPERTIES OF DOUGH SEMI-PRODUCTS ENRICHED WITH DIETARY SUPPLEMENTS. EUREKA: LIFE SCIENCES 2018. [DOI: 10.21303/2504-5695.2018.00679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The work is devoted to improving technologies of enriching food raw materials and products. The object of the research is dough semi-products of leavened, puff and unleavened dough, enriched with a dietary supplement, based on the chelate complex. The conducted studies are directed on investigating the evenness of distribution of microelements in the volume of dough semi-products and establishing the influence of a supplement on functional-technological properties of these semi-products. At that there were used methods of nuclear magnetic resonance, electronic paramagnetic resonance, low-temperature calorimetric method and rheological research methods. The method of nuclear magnetic resonance established that a dietary supplement, based on the chelate complex influences the mobility and interaction of water molecules with an environment in dough semi-products. The method of electronic paramagnetic resonance proved the evenness of distribution of a microelement of a dietary supplement by the volume of studied dough semi-product. Rheological and low-temperature calorimetric methods established that an introduced supplement favors a change of the qualitative and quantitative composition of system water of studied semi-products and changes their elastic properties. The obtained results proved the efficiency of using a powder-like supplement with stabilized chelates of metals in technologies of enriching food products.
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48
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Application of low-intensity ultrasound as a rapid, cost-effective tool to wheat screening: A systematic frequency selection. J Cereal Sci 2018. [DOI: 10.1016/j.jcs.2018.06.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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50
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Case Studies in Modelling, Control in Food Processes. ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2017; 161:93-120. [PMID: 28447120 DOI: 10.1007/10_2017_13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/18/2023]
Abstract
This chapter discusses the importance of modelling and control in increasing food process efficiency and ensuring product quality. Various approaches to both modelling and control in food processing are set in the context of the specific challenges in this industrial sector and latest developments in each area are discussed. Three industrial case studies are used to demonstrate the benefits of advanced measurement, modelling and control in food processes. The first case study illustrates the use of knowledge elicitation from expert operators in the process for the manufacture of potato chips (French fries) and the consequent improvements in process control to increase the consistency of the resulting product. The second case study highlights the economic benefits of tighter control of an important process parameter, moisture content, in potato crisp (chips) manufacture. The final case study describes the use of NIR spectroscopy in ensuring effective mixing of dry multicomponent mixtures and pastes. Practical implementation tips and infrastructure requirements are also discussed.
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