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Wang Q, Wang Z, Wang Z, Duan Y, Guo H, Liang Y, Zhang X, Zhang Y, Wang J. Effect of high-molecular-weight glutenin subunits silencing on dough aggregation characteristics. Food Chem 2024; 441:138371. [PMID: 38218148 DOI: 10.1016/j.foodchem.2024.138371] [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: 06/23/2023] [Revised: 12/21/2023] [Accepted: 01/04/2024] [Indexed: 01/15/2024]
Abstract
The qualities of wheat dough are influenced by the high-molecular-weight glutenin subunits (HMW-GS), a critical component of wheat gluten protein. However, it is still unknown how HMW-GS silencing affects the aggregation characteristics of dough. Two groups of near-isogenic wheat were used to study the effects of HMW-GS silencing on dough aggregation characteristics, dough texture characteristics, and dough microstructure. It was observed that the content of gliadin in LH-11 strain significantly increased compared to the wild-type (WT). Additionally, the amount of glutenin macropolymer and the glutenin/gliadin both decreased. The aggregation characteristics and rheological characteristics of the dough in LH-11 strain were significantly reduced, and the content of β-sheet in the dough was significantly reduced. The HMW-GS silencing resulted in a reduction in the aggregation of the gluten network in the dough, which related to the alteration of the secondary and microstructure of the gluten.
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Affiliation(s)
- Qi Wang
- The National Engineering Laboratory for Wheat & Corn Further Processing, Henan University of Technology, Zhengzhou 450001, China; School of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Zhicheng Wang
- School of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Zehao Wang
- School of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Yaqian Duan
- School of International Education, Henan University of Technology, Zhengzhou 450001, China
| | - Haimei Guo
- School of International Education, Henan University of Technology, Zhengzhou 450001, China
| | - Ying Liang
- School of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Xia Zhang
- School of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Yingjun Zhang
- Institute of Cereal and Oil Crops, Hebei Academy of Agriculture and Forestry Sciences, Laboratory of Crop Genetics and Breeding of Hebei, Shijiazhuang 050035, China.
| | - Jinshui Wang
- School of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China.
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Galimova AA, Kuluev BR. Identification of new nucleotide sequences of the Glu-B1-1 gene encoding x-type glutenins in bread wheat. Vavilovskii Zhurnal Genet Selektsii 2023; 27:433-439. [PMID: 37808211 PMCID: PMC10556853 DOI: 10.18699/vjgb-23-52] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 04/27/2023] [Accepted: 05/12/2023] [Indexed: 10/10/2023] Open
Abstract
Studies of the genetic base and polymorphism of bread wheat cultivars aimed at identifying alleles of genes associated with high baking and other economically valuable traits seem to be relevant, since bread wheat, along with all representatives of the Triticeae tribe, has a huge genetic potential for creating cultivars with high technological and rheological properties of grain flour. The aim of this study was sequencing and analysis of the nucleotide sequences of the Glu-B1-1 gene, and analysis of the predicted amino acid sequences of its protein product in three cultivars of bread wheat. Thus, in the course of genotyping cultivars and lines of bread wheat for the Glu-B1-1 gene, in the cultivars 'Avesta', 'Leningradka krupnozernaya' and line C-75094, previously undescribed changes in the size of amplifiable regions of the Glu-B1-1 gene for high-molecular weight glutenins were found. Comparative analysis of the nucleotide sequences of these genes with known sequences showed the presence of two deletions in 'Avesta' and C-75094 and the presence of seven single-nucleotide substitutions in 'Leningradka krupnozernaya'. Alignment of the predicted Glu-B1 amino acid sequences of the studied accessions and the standard cultivar carrying the Glu-B1-a allele showed that deletions in the amino acid sequences of 'Avesta' and C-75094 accessions are localized in the central domain of the protein and affect the amount of tri-, hexa-, and nonapeptides, and in 'Leningradka krupnozernaya', a decrease in GQQ and PGQGQQ by one unit was revealed. In addition, substitutions of five amino acids were found in 'Leningradka krupnozernaya'. Thus, we have found previously undescribed deletions and substitutions in the nucleotide sequences of the Glu-B1-1 gene for high-molecular-weight glutenins, which lead to changes in amino acid sequences in functionally important regions, namely, in the central domains of protein molecules. The identified mutations can be used for genotyping bread wheat cultivars.
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Affiliation(s)
- A A Galimova
- Institute of Biochemistry and Genetics - Subdivision of the Ufa Federal Research Centre of the Russian Academy of Sciences, Ufa, Russia Federal Research Center the N.I. Vavilov All-Russian Institute of Plant Genetic Resources (VIR), St. Petersburg, Russia
| | - B R Kuluev
- Institute of Biochemistry and Genetics - Subdivision of the Ufa Federal Research Centre of the Russian Academy of Sciences, Ufa, Russia Federal Research Center the N.I. Vavilov All-Russian Institute of Plant Genetic Resources (VIR), St. Petersburg, Russia
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Li L, Liu Z, Li X, Chu X, Yang W, Wang B, Xie Y, Li X. Superior gluten structure and more small starch granules synergistically confer dough quality for high amylose wheat varieties. Front Nutr 2023; 10:1195505. [PMID: 37266134 PMCID: PMC10230047 DOI: 10.3389/fnut.2023.1195505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 04/27/2023] [Indexed: 06/03/2023] Open
Abstract
High amylose wheat (HAW) has potential health benefits but its dough structure is usually inferior. Wheat dough is a complex mixture and its structure is influenced by the physicochemical properties of gluten and starch. In this study, we investigated the starch granule development, gluten structure, starch properties, pasting, and thermal properties of flour, as well as the rheological properties of dough in wheat variety Xinong 836 with high amylose content (33.57%) and its parents. The results showed that Xinong 836 wheat starch contained more small starch granules, which was consistent with the microstructural results of starch granules in grain filling stage. Moreover, Xinong 836 wheat starch showed highest swelling power and water solubility. Importantly, the flour of Xinong 836 wheat had the highest protein content and wet gluten content and Xinong 836 wheat gluten showed highest β-sheets content and disulfide bond content than its parents Zhengmai 7698 and Xinong 979, which conferring to more compact microscopic networks of dough, thereby contributing to the higher peak viscosity (PV), final viscosity (FV), and setback viscosity (SB) in the flour of Xinong 836. Our finding elucidated that the stability of gluten and properties of starch synergistically affected the pasting and thermal properties of the flour paste, and the presence of more small starch granules contributed to dough with a rather dense structure in HAW Xinong 836. Thus, superior gluten structure and more small starch granules have synergistic effects on enhancing the gluten-starch interaction, thereby contributing to better dough quality.
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Su K, Liu L, Pan X, Chen S, Zhang X, Cheng W, Xu B. Effect of Microwave Vacuum Freeze-Drying Power on Emulsifying and Structure Properties of Egg White Protein. Foods 2023; 12:foods12091792. [PMID: 37174330 PMCID: PMC10177774 DOI: 10.3390/foods12091792] [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: 03/28/2023] [Revised: 04/20/2023] [Accepted: 04/24/2023] [Indexed: 05/15/2023] Open
Abstract
The study investigated the effects of different microwave vacuum freeze-drying powers (100-500 W) on the emulsifying properties and structural characteristics of egg white protein, which is of great significance in enhancing the added value of EWP and promoting its application. Emulsification analysis revealed that the emulsification performance was significantly influenced by microwave power and reached its maximum at 300 W. Fourier-transform infrared spectroscopy (FT-IR) and sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) analyses showed that microwave vacuum freeze-drying treatment altered the secondary structure of EWP without changing its peptide structure. Fluorescence measurements indicated that the maximum fluorescence emission intensity decreased, and the maximum emission wavelength shifted towards blue as the power increased. Particle size, zeta potential, scanning electron microscopy (SEM), and differential scanning calorimetry (DSC) analyses showed that the average particle size of EWP reached the minimum value of 1203.66 nm, the absolute value of zeta potential reached the maximum value of 41.35 mV, and the thermal stability was strongest, with a more uniform and loose structure observed at 300 W. Texture profile analysis (TPA) showed that appropriate power treatment significantly enhanced the chewiness and viscoelasticity of egg white protein. Therefore, appropriate power treatment could effectively improve the emulsifying properties and stability.
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Affiliation(s)
- Kenan Su
- International Joint Laboratory of Food Processing and Quality Safety Control of Henan Province, National Experimental Teaching Demonstration Center for Food Processing and Security, College of Food and Bioengineering, Henan University of Science and Technology, Luoyang 471023, China
| | - Lili Liu
- International Joint Laboratory of Food Processing and Quality Safety Control of Henan Province, National Experimental Teaching Demonstration Center for Food Processing and Security, College of Food and Bioengineering, Henan University of Science and Technology, Luoyang 471023, China
| | - Xingyu Pan
- International Joint Laboratory of Food Processing and Quality Safety Control of Henan Province, National Experimental Teaching Demonstration Center for Food Processing and Security, College of Food and Bioengineering, Henan University of Science and Technology, Luoyang 471023, China
| | - Shuxing Chen
- Food Laboratory of Zhongyuan, Luohe 462300, China
| | - Xiaodan Zhang
- International Joint Laboratory of Food Processing and Quality Safety Control of Henan Province, National Experimental Teaching Demonstration Center for Food Processing and Security, College of Food and Bioengineering, Henan University of Science and Technology, Luoyang 471023, China
| | - Weiwei Cheng
- International Joint Laboratory of Food Processing and Quality Safety Control of Henan Province, National Experimental Teaching Demonstration Center for Food Processing and Security, College of Food and Bioengineering, Henan University of Science and Technology, Luoyang 471023, China
| | - Baocheng Xu
- International Joint Laboratory of Food Processing and Quality Safety Control of Henan Province, National Experimental Teaching Demonstration Center for Food Processing and Security, College of Food and Bioengineering, Henan University of Science and Technology, Luoyang 471023, China
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Wheat Glu-A1a encoded 1Ax1 subunit enhances gluten physicochemical properties and molecular structures that confer superior breadmaking quality. Int J Biol Macromol 2023; 225:701-714. [PMID: 36402392 DOI: 10.1016/j.ijbiomac.2022.11.134] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 10/14/2022] [Accepted: 11/13/2022] [Indexed: 11/18/2022]
Abstract
Wheat gluten proteins serve as the largest protein molecules in nature and play key roles in breadmaking quality formation. In this study, we used a pair of Glu-A1 allelic variation lines to perform a comprehensive investigation on the effects of Glu-A1a encoded 1Ax1 subunit on gluten physicochemical properties, molecular structures and breadmaking quality. The results showed that the presence of the 1Ax1 subunit significantly increased gluten content, leading to marked improvement of dough rheological properties. Meanwhile, gluten physicochemical properties such as foaming ability and foaming stability, oil/water-holding capacity, emulsifying activity, disulfide bond content, and gluten degradation temperature were significantly improved. A confocal laser scanning microscope analysis revealed that the 1Ax1 subunit drastically enhanced gluten microstructure. Gluten secondary structure analysis by Fourier transform infrared spectroscopy and laser scanning microscope-Raman spectroscopy indicated that 1Ax1 subunit significantly promoted β-turn and β-sheet content and reduced α-helix content. Three-dimensional structure analysis by AlphaFold2 revealed a similar structural feature of 1Ax1 with the superior quality subunit 1Ax2*. Correlation and principal component analyses demonstrated that α-helix and β-sheet content had a significant correlation with dough rheological properties, gluten physicochemical properties and breadmaking quality. Our results showed that 1Ax1 subunit positively affected gluten molecular structure and quality formation.
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Dai HH, An HZ, Ma YX, Guo YT, Du Y, Zhu XQ, Luo Q. Effects of lysine on the physiochemical properties of plant-protein high-moisture extrudates. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.114410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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7
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Trevisan S, Salimi Khorshidi A, Scanlon MG. Relationship between nitrogen functionality and wheat flour dough rheology: extensional and shear approaches. Food Res Int 2022; 162:112049. [DOI: 10.1016/j.foodres.2022.112049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 10/09/2022] [Accepted: 10/12/2022] [Indexed: 11/04/2022]
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8
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Deng X, Huang H, Huang S, Yang M, Wu J, Ci Z, He Y, Wu Z, Han L, Zhang D. Insight into the incredible effects of microwave heating: Driving changes in the structure, properties and functions of macromolecular nutrients in novel food. Front Nutr 2022; 9:941527. [PMID: 36313079 PMCID: PMC9607893 DOI: 10.3389/fnut.2022.941527] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 09/23/2022] [Indexed: 11/13/2022] Open
Abstract
Microwave heating technology performs the characteristics of fast heating, high efficiency, green energy saving and easy control, which makes it deeply penetrate into the food industry and home cooking. It has the potential to alter the appearance and flavor of food, enhance nutrient absorption, and speed up the transformation of active components, which provides an opportunity for the development of innovation foods. However, the change of food driven by microwave heating are very complex, which often occurs beyond people's cognition and blocks the development of new food. It is thus necessary to explore the transformation mechanism and influence factors from the perspectives of microwave technology and food nutrient diversity. This manuscript focuses on the nutritional macromolecules in food, such as starch, lipid and protein, and systematically analyzes the change rule of structure, properties and function under microwave heating. Then, the flavor, health benefits, potential safety risks and bidirectional allergenicity associated with microwave heating are fully discussed. In addition, the development of new functional foods for health needs and future market based on microwave technology is also prospected. It aims to break the scientific fog of microwave technology and provide theoretical support for food science to understand the change law, control the change process and use the change results.
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Affiliation(s)
- Xuan Deng
- State Key Laboratory of Southwestern Chinese Medicine Resources, Pharmacy School, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Haozhou Huang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Pharmacy School, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Shengjie Huang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Pharmacy School, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Ming Yang
- Key Laboratory of Modern Preparation of Chinese Medicine, Ministry of Education, Jiangxi University of Traditional Chinese Medicine, Nanchang, China,State Key Laboratory of Innovation Medicine and High Efficiency and Energy Saving Pharmaceutical Equipment, Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Jing Wu
- Xinqi Microwave Co., Ltd., Guiyang, China
| | - Zhimin Ci
- State Key Laboratory of Southwestern Chinese Medicine Resources, Pharmacy School, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yanan He
- State Key Laboratory of Southwestern Chinese Medicine Resources, Pharmacy School, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Zhenfeng Wu
- Key Laboratory of Modern Preparation of Chinese Medicine, Ministry of Education, Jiangxi University of Traditional Chinese Medicine, Nanchang, China,State Key Laboratory of Innovation Medicine and High Efficiency and Energy Saving Pharmaceutical Equipment, Jiangxi University of Traditional Chinese Medicine, Nanchang, China,Zhenfeng Wu
| | - Li Han
- State Key Laboratory of Southwestern Chinese Medicine Resources, Pharmacy School, Chengdu University of Traditional Chinese Medicine, Chengdu, China,*Correspondence: Li Han
| | - Dingkun Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Pharmacy School, Chengdu University of Traditional Chinese Medicine, Chengdu, China,Dingkun Zhang
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Effects of Cysteine on Physicochemical Properties of High-Moisture Extrudates Prepared from Plant Protein. Foods 2022; 11:foods11193109. [PMID: 36230185 PMCID: PMC9564089 DOI: 10.3390/foods11193109] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 09/07/2022] [Accepted: 10/01/2022] [Indexed: 11/16/2022] Open
Abstract
The effects of cysteine addition (0%, 0.05%, 0.10%, 0.15%, 0.20%, 0.25%) on the physicochemical properties of plant-based extrudates by high-moisture extrusion were investigated. The texturization degree, rheological properties, hardness, springiness and chewiness of the extrudates significantly improved with the addition of cysteine (<0.15%). Analysis of the microstructure showed that the addition of cysteine (<0.15%) improved the formation of the fiber structure in the extrudates. Cysteine (<0.15%) promoted the formation of new disulfide bonds and non-covalent bonds by changing the disulfide bonds of protein molecules and enhanced the cross-linking degree between proteins. However, the excessive addition of cysteine (>0.15%) had a negative impact on the formation of fiber structure. Analysis of secondary structure suggested that the ordered β-sheet structures gradually converted to the disordered β-turn and random coil structures with the addition of cysteine (>0.15%). In addition, analysis of odor properties with the addition of cysteine using an electronic nose showed the difference in volatile components of the extrudates mainly existed in halides, hydrocarbons, sulfides and amines. On the whole, the addition of cysteine could improve the quality of plant-based extrudates.
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10
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Liu A, Zhang Y, Zhao X, Li D, Xie C, Yang R, Gu Z, Zhong Y, Jiang D, Wang P. The role of feruloylation of wheat bran arabinoxylan in regulating the heat-evoked polymerization behavior of gluten. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2022.108046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Abstract
Waxy wheat offers unique benefits in food processing, including improving the smoothness and performance of the product. However, waxy wheat is not yet commercially available. The protein characteristics, including the protein content, subunit distribution, secondary structure, chemical interactions, and microstructure of the gluten, were explored to realize the full potential of waxy wheat. The results showed that the noodles prepared from waxy wheat had a gentle and glutinous texture compared with GY2018 and YM13. Partial-waxy and waxy wheat had a lower gluten index and glutenin macropolymer (GMP) content than GY2018, indicating a reduced gluten strength. Confocal laser scanning microscopy (CLSM) images showed that the starch granules were not securely attached to the partial-waxy and waxy wheat protein matrix. In addition, the waxy protein chains appeared more elongated and they weakened the protein network. In particular, HMW-GS subunit 2 + 12 may be the essential cause of the weak dough from SKN1. Compared with GY2018 and YM13, SKN1 had the highest number of free sulfhydryl groups. Rather than ionic bonds, hydrophobic interactions increased the gluten network in GY2018, YM13, and SKN1. The weak molecular forces in the gluten will result in a soft noodle texture.
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Peng J, Zhu KX, Guo XN, Zhou HM. Egg white protein addition induces protein aggregation and fibrous structure formation of textured wheat gluten. Food Chem 2022; 371:131102. [PMID: 34537616 DOI: 10.1016/j.foodchem.2021.131102] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Revised: 09/05/2021] [Accepted: 09/06/2021] [Indexed: 12/19/2022]
Abstract
The effect of egg white protein addition on the fibrous structure and protein aggregation of textured wheat gluten (TWG) extrudates was investigated. The hardness, springiness, chewiness, and degree of texturization of TWG significantly increased with the addition of egg white protein. Analysis of morphological characteristics showed a positive effect of egg white protein on the formation of the fibrous structure of TWG. The results of size-exclusion high performance liquid chromatography (SE-HPLC) indicated that the egg white protein improved the degree of wheat gluten aggregation, and the analysis of the protein intermolecular forces proved that disulfide bonds were the main contributor to the cross-linking of protein. In addition, an increase in the β-sheets also indicated an increase in protein aggregation induced by egg white protein. The addition of egg white protein promoted protein interactions and improved the fibrous structure of TWG.
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Affiliation(s)
- Jing Peng
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Ke-Xue Zhu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Xiao-Na Guo
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Hui-Ming Zhou
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi 214122, China.
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Yu L, Ma Y, Zhao Y, Rehman AU, Guo L, Liu Y, Yang Y, Wang Z, Cao X, Gao X. Interaction of B-type starch with gluten skeleton improves wheat dough mixing properties by stabilizing gluten micro-structure. Food Chem 2022; 371:131390. [PMID: 34808780 DOI: 10.1016/j.foodchem.2021.131390] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 10/04/2021] [Accepted: 10/10/2021] [Indexed: 11/04/2022]
Abstract
Some recent studies have revealed individual and the combined interactions of gluten and starch affecting dough mixing properties. However, the combined influence of high-molecular-weight glutenin subunits (HMW-GS) and starch on dough mixing and rheological properties requires elucidation. Thus four recombinant inbred lines, SS 1, SS 2, ZZ 1 and ZZ 2, were selected based on their HMW-GSs compositions. Compared to ZZ 1 and ZZ 2, both SS 1 and SS 2 carried superior HMW-GS alleles, and exhibited extended dough development and stability time, indicating their significant dough mixing characteristics. The gluten skeleton of the wheat lines SS 2 and ZZ 2 with higher B-type starch proportions exhibited fewer breakages along with the rise of dough temperature during mixing. Higher content of B-type starch strengthens interaction between starch and gluten skeleton at the dough heating stage, suggesting a specific range of B-type starch proportion can improve dough mixing characteristics.
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Affiliation(s)
- Liwei Yu
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yanrong Ma
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yiyue Zhao
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Ata-Ur Rehman
- Graham Centre for Agricultural Innovation, Charles Sturt University, Wagga Wagga, NSW 2650, Australia
| | - Lei Guo
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yingchun Liu
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yang Yang
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Zhonghua Wang
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Xinyou Cao
- Crop Research Institute, Shandong Academy of Agricultural Sciences/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, Jinan 250100, China.
| | - Xin Gao
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China.
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Influence of starch physicochemical properties on biscuit-making quality of wheat lines with high-molecular-weight glutenin subunit (HMW-GS) absence. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.113166] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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15
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Yang T, Zhou Q, Wang Q, Wang X, Cai J, Huang M, Jiang D. Effects of Nitrogen Fertilizer on Quality Characteristics of Wheat with the Absence of Different Individual High-Molecular-Weight Glutenin Subunits (HMW-GSs). Int J Mol Sci 2022; 23:ijms23042178. [PMID: 35216291 PMCID: PMC8877987 DOI: 10.3390/ijms23042178] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 02/14/2022] [Accepted: 02/15/2022] [Indexed: 12/04/2022] Open
Abstract
High-molecular-weight glutenin subunits (HMW-GSs) are important components of gluten, which determine the grain quality of wheat. In this study, we investigated the effects of nitrogen (N) fertilizer application on the synthesis and accumulation of grain protein and gluten quality in wheat lines with different HMW-GSs absent. The results showed that the absence of the HMW-GS in the wheat variety Ningmai 9 significantly decreased the contents of gluten, glutenin macropolymer (GMP), protein compositions, HMW-GS and HMW-GS/LMW-GS. The reduction in glutenins was compensated to some extent by an increase of gliadins. The absence of x-type HMW-GSs (1, 7 and 2 subunits) had a greater effect on gluten and GMP properties than y-type HMW-GSs (8 and 12 subunits). The content of protein compositions, gluten and GMP increased with an increase of N level; however, the increment in wheat lines with the absence of HMW-GS, especially in Ax1a, Bx7a and Dx2a, was lower than that in the wild type under various N levels. The expression level of genes encoding HMW-GSs, and activities of nitrate reductase (NR) and glutamine synthetase (GS), differed significantly among the investigated wheat lines. The reduction in gene expression and activities in Ax1a and Dx2a may account for the reductions in gluten, GMP, protein compositions, HMW-GS and HMW-GS/LMW-GS.
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16
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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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17
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Wang X, Peng P, Appels R, Tian L, Zou X. Macromolecular networks interactions in wheat flour dough matrices during sequential thermal-mechanical treatment. Food Chem 2021; 366:130543. [PMID: 34284193 DOI: 10.1016/j.foodchem.2021.130543] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 07/02/2021] [Accepted: 07/04/2021] [Indexed: 11/04/2022]
Abstract
Differences in Mixolab measurements of dough processing were examined using, as a base, flour from pure breeding, isogenic, wheat lines carrying either the high molecular weight glutenin subunits 5 + 10 or 2 + 12. Before dough pasting, subunits 5 + 10 tend to form a stable gluten network relying mainly on disulfide bonds and hydrogen bonds, but 2 + 12 flour was prone to generating fragile protein aggregates dominated by disulfide bonds and hydrophobicity. During dough pasting, a broader protein network rich in un-extractable polymeric proteins, disulfide bonds and β-sheets was formed in the dough with subunits 5 + 10, thus resulting in an extensive and compact protein-starch complex which was characterized by high thermal stability and low starch gelatinization, while in the dough of the 2 + 12 line, a porous protein-starch gel with fragmented protein aggregates was controlled by the combination of disulfide bonds, hydrophobicity and hydrogen bonds that facilitated the formation of antiparallel β-sheets.
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Affiliation(s)
- Xiaolong Wang
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710162, Shaanxi, China.
| | - Pai Peng
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710162, Shaanxi, China
| | - Rudi Appels
- School of Agriculture and Food, University of Melbourne, Parkville 3010, Australia
| | - Linpei Tian
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710162, Shaanxi, China
| | - Xiaoyang Zou
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710162, Shaanxi, China
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18
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Proteome and transcriptome analyses of wheat near isogenic lines identifies key proteins and genes of wheat bread quality. Sci Rep 2021; 11:9978. [PMID: 33976249 PMCID: PMC8113351 DOI: 10.1038/s41598-021-89140-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 04/21/2021] [Indexed: 11/08/2022] Open
Abstract
The regulation of wheat protein quality is a highly complex biological process involving multiple metabolic pathways. To reveal new insights into the regulatory pathways of wheat glutenin synthesis, we used the grain-filling period wheat grains of the near-isogenic lines NIL-723 and NIL-1010, which have large differences in quality, to perform a combined transcriptome and proteome analysis. Compared with NIL-1010, NIL-723 had 1287 transcripts and 355 proteins with significantly different abundances. Certain key significantly enriched pathway were identified, and wheat quality was associated with alanine, aspartate and glutamate metabolism, nitrogen metabolism and alpha-linolenic acid metabolism. Differentially expressed proteins (DEPs) or Differentially expressed genes (DEGs) in amino acid synthesis pathways were upregulated primarily in the glycine (Gly), methionine (Met), threonine (Thr), glutamic acid (Glu), proline (proC), cysteine (Cys), and arginine (Arg) synthesis and downregulated in the tryptophan (trpE), leucine (leuC), citrulline (argE), and ornithine (argE) synthesis. Furthermore, to elucidate changes in glutenin in the grain synthesis pathway, we plotted a regulatory pathway map and found that DEGs and DEPs in ribosomes (RPL5) and the ER (HSPA5, HYOU1, PDIA3, PDIA1, Sec24, and Sec31) may play key roles in regulating glutenin synthesis. The transcriptional validation of some of the differentially expressed proteins through real-time quantitative PCR analysis further validated the transcriptome and proteomic results.
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19
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Yu L, Guo L, Liu Y, Ma Y, Zhu J, Yang Y, Min D, Xie Y, Chen M, Tong J, Rehman AU, Wang Z, Cao X, Gao X. Novel parameters characterizing size distribution of A and B starch granules in the gluten network: Effects on dough stability in bread wheat. Carbohydr Polym 2021; 257:117623. [PMID: 33541650 DOI: 10.1016/j.carbpol.2021.117623] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 12/31/2020] [Accepted: 01/04/2021] [Indexed: 12/23/2022]
Abstract
Our study on six wheat genotypes has revealed strong interaction between gluten and starch to affect dough stability. To establish gluten-starch interaction and its roles in dough stability, we randomly selected 16 wheat genotypes and investigated the physicochemical properties of gluten and starch. The manner in which the starch granules occupied available space in gluten network was quantitatively analyzed using gluten lacunarity and proportion of different sized A-type and B-type starch granules. Positive correlations were found between the morphological attributes (B/A/Lacunarity, B/Lacunarity) and dough stability. The correlation coefficient between B/A/Lacunarity and dough stability was highest, followed by the percentage of unextractable polymeric protein (UPP%), B/Lacunarity and dough stability. Dough mixing properties were strongly affected by gluten-starch interactions, as indicated by novel parameters. Whereas the effect of gluten on its own did not provide any evidence to suggest its concrete role in dough mixing properties because of the various genetic backgrounds.
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Affiliation(s)
- Liwei Yu
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Lei Guo
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yingchun Liu
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yanrong Ma
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Jianchu Zhu
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yang Yang
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Donghong Min
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yanzhou Xie
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Mingxun Chen
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Jingyang Tong
- Institute of Crop Sciences/National Wheat Improvement Center, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Ata-Ur Rehman
- Graham Centre for Agricultural Innovation, Charles Sturt University, Wagga Wagga, NSW 2650, Australia
| | - Zhonghua Wang
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China.
| | - Xinyou Cao
- Crop Research Institute, Shandong Academy of Agricultural Sciences/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, Jinan 250100, China.
| | - Xin Gao
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China.
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20
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Li Y, Fu J, Shen Q, Yang D. High-Molecular-Weight Glutenin Subunits: Genetics, Structures, and Relation to End Use Qualities. Int J Mol Sci 2020; 22:E184. [PMID: 33375389 PMCID: PMC7795185 DOI: 10.3390/ijms22010184] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 12/16/2020] [Accepted: 12/23/2020] [Indexed: 02/06/2023] Open
Abstract
High-molecular-weight glutenin subunits (HMW-GSs) are storage proteins present in the starchy endosperm cells of wheat grain. Encoding the synthesis of HMW-GS, the Glu-1 loci located on the long arms of group 1 chromosomes of the hexaploid wheat (1A, 1B, and 1D) present multiple allelism. In hexaploid wheat cultivars, almost all of them express 3 to 5 HMW-GSs and the 1Ay gene is always silent. Though HMW-GSs are the minor components in gluten, they are crucial for dough properties, and certain HMW-GSs make more positive contributions than others. The HMW-GS acts as a "chain extender" and provides a disulfide-bonded backbone in gluten network. Hydrogen bonds mediated by glutamine side chains are also crucial for stabilizing the gluten structure. In most cases, HMW-GSs with additional or less cysteines are related to the formation of relatively more or less interchain disulfide bonds and HMW-GSs also affect the gluten secondary structures, which in turn impact the end use qualities of dough.
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Affiliation(s)
- Yi Li
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science & Nutritional Engineering, China Agricultural University, 17 East Tsinghua Rd., Beijing 100083, China; (Y.L.); (J.F.)
- Xinghua Industrial Research Centre for Food Science and Human Health, China Agricultural University, Xinghua 225700, China
| | - Jiahui Fu
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science & Nutritional Engineering, China Agricultural University, 17 East Tsinghua Rd., Beijing 100083, China; (Y.L.); (J.F.)
| | - Qun Shen
- Key Laboratory of Plant Protein and Grain Processing, National Engineering Research Center for Fruit and Vegetable Processing, China Agricultural University, 17 East Tsinghua Rd., Beijing 100083, China;
| | - Dong Yang
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science & Nutritional Engineering, China Agricultural University, 17 East Tsinghua Rd., Beijing 100083, China; (Y.L.); (J.F.)
- Xinghua Industrial Research Centre for Food Science and Human Health, China Agricultural University, Xinghua 225700, China
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21
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Chen Y, Liang Y, Jia F, Chen D, Zhang X, Wang Q, Wang J. Effect of extrusion temperature on the protein aggregation of wheat gluten with the addition of peanut oil during extrusion. Int J Biol Macromol 2020; 166:1377-1386. [PMID: 33161084 DOI: 10.1016/j.ijbiomac.2020.11.017] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 11/02/2020] [Accepted: 11/04/2020] [Indexed: 10/23/2022]
Abstract
The influence of extrusion temperature on protein components and aggregation of wheat gluten (WG) and wheat gluten-peanut oil complexes (WPE) during extrusion with the addition of peanut oil was studied. Gliadin content and wheat gluten extractability decreased and glutenin content increased as extrusion temperature increased. At the same extrusion temperature, the gliadin content in WPE was higher than that in WG. The addition of peanut oil also resulted in the higher gluten extractability of WPE than WG. Increasing extrusion temperature also increased the average molecular weight of glutenin and gliadin. The decreased free sulfhydryl (SH) and increased disulfide bonds (SS) indicated that wheat gluten aggregation was promoted, via disulfide cross-linking, when extrusion temperature increased. Furthermore, increased temperature promoted the aggregation of gluten by increasing sulfhydryl-disulfide bond (SH-SS) interchange during extrusion. When the secondary structure of wheat gluten was analyzed by circular dichroism, the relative gluten α-helix content was decreased and the relative β-sheet content was increased. Also, the results of scanning electron microscopy (SEM) showed the size of the resultant particles increased with temperature, and the mean particle size of WPE was higher than WG. This research shows that extrusion temperature promotes gluten aggregation of WG and WPE. It provides basic data to support the study of gluten-lipid extrusion in the field of protein processing.
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Affiliation(s)
- Yu Chen
- College of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Ying Liang
- College of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Feng Jia
- College of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Di Chen
- College of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Xia Zhang
- College of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Qi Wang
- College of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Jinshui Wang
- College of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China.
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22
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Influence of gluten and starch granules interactions on dough mixing properties in wheat (Triticum aestivum L.). Food Hydrocoll 2020. [DOI: 10.1016/j.foodhyd.2020.105885] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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23
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Zhao L, Li L, Song L, Liu Z, Li X, Li X. HMW-GS at Glu-B1 Locus Affects Gluten Quality Possibly Regulated by the Expression of Nitrogen Metabolism Enzymes and Glutenin-Related Genes in Wheat. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:5426-5436. [PMID: 32314918 DOI: 10.1021/acs.jafc.0c00820] [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: 06/11/2023]
Abstract
In this study, we investigated the effect of high-molecular-weight glutenin subunits (HMW-GSs) on gluten quality and glutenin synthesis based on the cytological, physicochemical, and transcriptional levels using Xinong1718 and its three near-isogenic lines (NILs). Cytological observations showed that the endosperm of Glu-1Bh with Bx14+By15 accumulated more abundant and larger protein bodies at 10 and 16 days after anthesis than the other NILs. Glu-1Bh exhibited higher nitrogen metabolism enzyme gene expression and activity levels. The transcriptional levels of genes encoding HMW-GSs, protein folding, and transcription factors differed significantly among the NILs, and they were highest in Glu-1Bh. Our results demonstrate that variations in the expression patterns of nitrogen metabolism and glutenin synthesis-related genes may account for the differences in the accumulation of glutenin, glutenin macropolymers, and protein bodies, thereby affecting the structural and thermal stability of gluten. These findings provide novel insights into how different HMW-GSs might improve the quality of wheat.
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Affiliation(s)
- Liye Zhao
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, 3 Taicheng Rd, Yangling, Shaanxi Province 712100, China
| | - Liqun Li
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, 3 Taicheng Rd, Yangling, Shaanxi Province 712100, China
| | - Lijun Song
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, 3 Taicheng Rd, Yangling, Shaanxi Province 712100, China
| | - Zhenzhen Liu
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, 3 Taicheng Rd, Yangling, Shaanxi Province 712100, China
| | - Xu Li
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, 3 Taicheng Rd, Yangling, Shaanxi Province 712100, China
| | - Xuejun Li
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, 3 Taicheng Rd, Yangling, Shaanxi Province 712100, China
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24
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Low-molecular-weight glutenin subunit LMW-N13 improves dough quality of transgenic wheat. Food Chem 2020; 327:127048. [PMID: 32454285 DOI: 10.1016/j.foodchem.2020.127048] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 04/26/2020] [Accepted: 05/11/2020] [Indexed: 11/21/2022]
Abstract
In our previous study, a novel LMW-GS designated as LMW-N13 with a unique molecular structure was identified from Aegilops uniaristata. LMW-N13 has been characterized as the largest LMW-GS, so far, and possesses an extra cysteine residue compared with typical LMW-GS. In order to analyze the contribution of LMW-N13 to dough quality, in this work, three transgenic wheat lines overexpressing LMW-N13 were generated. Compared with non-transformation (NT) lines, transgenic (TG) lines demonstrated superior dough properties. These superior dough properties were accompanied by the higher contents of glutenin macropolymer (GMP) and total protein. The microstructure of the dough was further investigated by scanning electron microscopy; starch granules in NT lines were smaller than those in transgenic lines. The protein matrix in NT lines was relatively loose and discontinuous. Conversely, the protein matrix in transgenic lines was more continuous and tight. The application of LMW-N13 in wheat breeding is also discussed.
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25
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Zheng Y, Li Z, Zhang C, Zheng B, Tian Y. Effects of microwave-vacuum pre-treatment with different power levels on the structural and emulsifying properties of lotus seed protein isolates. Food Chem 2020; 311:125932. [DOI: 10.1016/j.foodchem.2019.125932] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 10/25/2019] [Accepted: 11/19/2019] [Indexed: 11/28/2022]
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26
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Song L, Zhao L, Liu Z, Li L, Zheng J, Li X. Effects of exogenous starch on the structural–thermal properties of gluten in wheat with HMW-GS variations at Glu-D1 locus. Food Res Int 2020; 130:108950. [DOI: 10.1016/j.foodres.2019.108950] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Revised: 12/21/2019] [Accepted: 12/22/2019] [Indexed: 12/23/2022]
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27
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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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28
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Wang P, Zhao X, Yang R, Zhou Y, Zhou Q, Gu Z, Jiang D. Water-Extractable Arabinoxylan-Induced Changes in the Conformation and Polymerization Behavior of Gluten upon Thermal Treatment. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:4005-4016. [PMID: 32073852 DOI: 10.1021/acs.jafc.9b08122] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Interactions between gluten proteins and water-extractable arabinoxylan (WEAX) during the heating stage are crucial for the organoleptic quality of high-fiber cereal products. To reveal the molecular mechanism of WEAX on gluten characteristic upon heating, the current study comparatively investigated the effects of WEAX with different molecular weights (Mw) on the heat-evoked conformational variation and polymerization behavior of gluten. Results showed that WEAX, especially low Mw WEAX (L-WEAX), facilitated the polymerization ability of α-/γ-gliadins into glutenins, whereas high Mw WEAX (H-WEAX) reduced the polymerizing temperature of glutenin and gliadin. L-WEAX could develop more hydrogen bonds with tyrosine of gluten and stabilize the secondary structure more evidently than H-WEAX upon heating. Compared with disulfide bridge formation, hydrophobic interactions were not the driving force involved in the heat-induced polymerization behavior affected by WEAX. WEAX evoked the reinforced glutenin network and heterogeneous distribution of gliadin, with a more uniform molecular surface developed for gluten.
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Affiliation(s)
- Pei Wang
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, People's Republic of China
- National Technique Innovation Center for Regional Wheat Production/Key Laboratory of Crop Physiology, Ecology and Management, Ministry of Agriculture/National Engineering and Technology Center for Information Agriculture, Nanjing Agricultural University, Nanjing, Jiangsu 210095, People's Republic of China
| | - Xiaohui Zhao
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, People's Republic of China
| | - Runqiang Yang
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, People's Republic of China
| | - Yulin Zhou
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, People's Republic of China
| | - Qin Zhou
- National Technique Innovation Center for Regional Wheat Production/Key Laboratory of Crop Physiology, Ecology and Management, Ministry of Agriculture/National Engineering and Technology Center for Information Agriculture, Nanjing Agricultural University, Nanjing, Jiangsu 210095, People's Republic of China
| | - Zhenxin Gu
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, People's Republic of China
| | - Dong Jiang
- National Technique Innovation Center for Regional Wheat Production/Key Laboratory of Crop Physiology, Ecology and Management, Ministry of Agriculture/National Engineering and Technology Center for Information Agriculture, Nanjing Agricultural University, Nanjing, Jiangsu 210095, People's Republic of China
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29
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Song L, Li L, Zhao L, Liu Z, Xie T, Li X. Absence of Dx2 at Glu-D1 Locus Weakens Gluten Quality Potentially Regulated by Expression of Nitrogen Metabolism Enzymes and Glutenin-Related Genes in Wheat. Int J Mol Sci 2020; 21:ijms21041383. [PMID: 32085665 PMCID: PMC7073084 DOI: 10.3390/ijms21041383] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 02/12/2020] [Accepted: 02/16/2020] [Indexed: 01/11/2023] Open
Abstract
Absence of high-molecular-weight glutenin subunit (HMW-GS) Dx2 weakens the gluten quality, but it is unclear how the absence of Dx2 has these effects. Thus, we investigated the gluten quality in terms of cytological, physicochemical, and transcriptional characteristics using two near-isogenic lines with Dx2 absent or present at Glu-D1 locus. Cytological observations showed that absence of Dx2 delayed and decreased the accumulation of protein bodies (PBs), where fewer and smaller PBs formed in the endosperm. The activity and gene expression levels of nitrogen assimilation and proteolysis enzymes were lower in HMW-D1a without Dx2 than HMW-D1p with Dx2, and thus less amino acid was transported for protein synthesis in the grains. The expression pattern of genes encoding Glu-1Dx2+1Dy12 was similar to those of three transcription factors, where these genes were significantly down-regulated in HMW-D1a than HMW-D1p. Three genes involving with glutenin polymerization were also down-regulated in HMW-D1a. These results may explain the changes in the glutenin and glutenin macropolymer (GMP) levels during grain development. Therefore, we suggest that the lower nitrogen metabolism capacity and expression levels of glutenin synthesis-related genes in HMW-D1a accounted for the lower accumulation of glutenin, GMP, and PBs, thereby weakening the structural‒thermal properties of gluten.
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Affiliation(s)
| | | | | | | | | | - Xuejun Li
- Correspondence: ; Tel./Fax: +86-29-8708-2022
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30
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Wang Y, Li M, Guan Y, Li L, Sun F, Han J, Chang J, Chen M, Yang G, Wang Y, He G. Effects of an Additional Cysteine Residue of Avenin-like b Protein by Site-Directed Mutagenesis on Dough Properties in Wheat ( Triticum aestivum L.). JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:8559-8572. [PMID: 31298518 DOI: 10.1021/acs.jafc.9b02814] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Avenin-like b protein is rich in cysteine residues, providing the possibility to form intermolecular disulfide bonds and then participate in glutenin polymerization. Site-directed mutagenesis was adopted to produce mutant avenin-like b gene encoding mutant avenin-like b protein, in which one tyrosine codon at the C-terminal is substituted by a cysteine codon. Compared with the control lines, both transgenic lines with wild-type and mutant avenin-like b genes demonstrated superior dough properties. While compared within the transgenic lines, the mutant lines showed relative weaker dough strength and decreased sodium-dodecyl-sulfate sedimentation volumes (from 69.7 mL in line WT alb-1 to 41.0 mL in line Mut alb-4). These inferior dough properties were accompanied by the lower contents of large-sized glutenin polymers, the decreased particle diameters of glutenin macropolymer (GMP), due to the lower content of intermolecular β-sheets (from 39.48% for line WT alb-2 to 30.21% for line Mut alb-3) and the varied contents of disulfide bonds (from 137.37 μmol/g for line WT alb-1 to 105.49 μmol/g for line Mut alb-4) in wheat dough. The extra cysteine might alter the original disulfide bond structure, allowing cysteine residue usually involved in an intermolecular disulfide bond to become available for an intrachain disulfide bond. Avenin-like b proteins were detected in glutenin macropolymers, providing further evidence for this protein to participate in the polymerization of glutenin. This is the first time to investigate the effect of a specific cysteine residue in the avenin-like b protein on flour quality.
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Affiliation(s)
- Yaqiong Wang
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology , Huazhong University of Science & Technology , Wuhan 430074 , China
| | - Miao Li
- College of Grain Oil and Food Science , Henan University of Technology , Zhengzhou 450052 , China
| | - Yanbin Guan
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology , Huazhong University of Science & Technology , Wuhan 430074 , China
| | - Li Li
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology , Huazhong University of Science & Technology , Wuhan 430074 , China
| | - Fusheng Sun
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology , Huazhong University of Science & Technology , Wuhan 430074 , China
| | - Jiapeng Han
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology , Huazhong University of Science & Technology , Wuhan 430074 , China
| | - Junli Chang
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology , Huazhong University of Science & Technology , Wuhan 430074 , China
| | - Mingjie Chen
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology , Huazhong University of Science & Technology , Wuhan 430074 , China
| | - Guangxiao Yang
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology , Huazhong University of Science & Technology , Wuhan 430074 , China
| | - Yuesheng Wang
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology , Huazhong University of Science & Technology , Wuhan 430074 , China
| | - Guangyuan He
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology , Huazhong University of Science & Technology , Wuhan 430074 , China
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Wang Q, Li Y, Sun F, Li X, Wang P, Chang J, Wang Y, Yang G, He G. Co-expression of high-molecular-weight glutenin subunit 1Ax1 and Puroindoline a (Pina) genes in transgenic durum wheat (Triticum turgidum ssp. durum) improves milling and pasting quality. BMC PLANT BIOLOGY 2019; 19:126. [PMID: 30947699 PMCID: PMC6449967 DOI: 10.1186/s12870-019-1734-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Accepted: 03/20/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND Durum wheat is considered not suitable for making many food products that bread wheat can. This limitation is largely due to: (i) lack of grain-hardness controlling genes (Puroindoline a and b) and consequently extremely-hard kernel; (ii) lack of high- and low-molecular-weight glutenin subunit loci (Glu-D1 and Glu-D3) that contribute to gluten strength. To improve food processing quality of durum wheat, we stacked transgenic Pina and HMW-glutenin subunit 1Ax1 in durum wheat and developed lines with medium-hard kernel texture. RESULTS Here, we demonstrated that co-expression of Pina + 1Ax1 in durum wheat did not affect the milling performance that was enhanced by Pina expression. While stacking of Pina + 1Ax1 led to increased flour yield, finer flour particles and decreased starch damage compared to the control lines. Interestingly, Pina and 1Ax1 co-expression showed synergistic effects on the pasting attribute peak viscosity. Moreover, Pina and 1Ax1 co-expression suggests that PINA impacts gluten aggregation via interaction with gluten protein matrix. CONCLUSIONS The results herein may fill the gap of grain hardness between extremely-hard durum wheat and the soft kernel durum wheat, the latter of which has been developed recently. Our results may also serve as a proof of concept that stacking Puroindolines and other genes contributing to wheat end-use quality from the A and/or D genomes could improve the above-mentioned bottleneck traits of durum wheat and help to expand its culinary uses.
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Affiliation(s)
- Qiong Wang
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology (HUST), Wuhan, 430074 China
- College of Life Science and Health, Wuhan University of Science and Technology, Wuhan, 430065 China
| | - Yin Li
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology (HUST), Wuhan, 430074 China
- Waksman Institute of Microbiology, Rutgers, The State University of New Jersey, 190 Frelinghuysen Rd, Piscataway, NJ 08854 USA
| | - Fusheng Sun
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology (HUST), Wuhan, 430074 China
| | - Xiaoyan Li
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology (HUST), Wuhan, 430074 China
| | - Pandi Wang
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology (HUST), Wuhan, 430074 China
| | - Junli Chang
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology (HUST), Wuhan, 430074 China
| | - Yuesheng Wang
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology (HUST), Wuhan, 430074 China
| | - Guangxiao Yang
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology (HUST), Wuhan, 430074 China
| | - Guangyuan He
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology (HUST), Wuhan, 430074 China
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Li S, Wang J, Ding M, Min D, Wang Z, Gao X. The influence of night warming treatment on the micro-structure of gluten in two wheat cultivars. Food Res Int 2019; 116:329-335. [DOI: 10.1016/j.foodres.2018.08.043] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Revised: 08/06/2018] [Accepted: 08/18/2018] [Indexed: 10/28/2022]
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Huang L, He Y, Jin Y, Wang F, He J, Feng L, Liu D, Wu B. Characterization of novel LMW glutenin subunit genes at the Glu-M3 locus from Aegilops comosa. 3 Biotech 2018; 8:379. [PMID: 30148029 DOI: 10.1007/s13205-018-1407-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2018] [Accepted: 08/14/2018] [Indexed: 10/28/2022] Open
Abstract
We report the characterization of seven novel low-molecular-weight glutenin subunit (LMW-GS) genes from Aegilops comosa (2n = 2x = 14, MM). We found that all seven LMW-GS genes possessed the same primary structure shared by other known LMW-GSs. Three genes (comosa-M1, comosa-M2, and comosa-M3) encode LMW-m-type subunits, two (comosa-I1 and comosa-I2) encode LWM-i-type subunits, and two (comosa-L1 and comosa-L2) encode LWM-l-type subunits. The comosa-M1 possessed seven cysteine residues, which resulted from a single-nucleotide polymorphism (SNP) of the G-A transition in the fifth position of the N-terminal sequence. Two l-type subunits, comosa-L1 and comosa-L2, contained nine cysteine residues with an extra cysteine residue located in the signal peptide and repetitive domain. In addition, a long insertion of 13 residues (LGQQPQ8/LVQQPQ8) was present in the end of the C-terminal II. Phylogenetic analysis implied that the comosa-L2 may be the intermediate type during the evolution of LMW-l and LMW-i-type genes. Our results demonstrated that the novel LMW-GSs, such as comosa-M1, comosa-L1, and comosa-L2, may have positive effects on dough properties.
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Gao X, Liu T, Ding M, Wang J, Li C, Wang Z, Li X. Effects of HMW-GS Ax1 or Dx2 absence on the glutenin polymerization and gluten micro structure of wheat (Triticum aestivum L.). Food Chem 2018; 240:626-633. [DOI: 10.1016/j.foodchem.2017.07.165] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Revised: 07/29/2017] [Accepted: 07/31/2017] [Indexed: 11/27/2022]
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Zhu Y, Wang Y, Li J, Li F, Teng C, Li X. Effects of Water-Extractable Arabinoxylan on the Physicochemical Properties and Structure of Wheat Gluten by Thermal Treatment. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:4728-4735. [PMID: 28511540 DOI: 10.1021/acs.jafc.7b00837] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
This study investigated the effects of water-extractable arabinoxylan (WEAX) on gluten by thermal treatment. Fourier transform infrared spectroscopy (FTIR) results showed that heating significantly decreased β-sheets and β-turn structures in gluten proteins between 25 and 55 °C. The addition of WEAX caused a transition from β-turn to β-sheets at >55 °C. The ratio of weakly hydrogen-bonded β-sheets to strongly hydrogen-bonded β-sheets demonstrated an increasing trend with temperature increasing, but WEAX can hinder this process. FT-Raman results revealed that a hydrophilic environment was developed with 5% WEAX at 25 °C, and phenolic hydroxyl on ferulic acid can form new H-bonds with the phenyl groups of the nondissociated Tyr residues. A 5% WEAX content is helpful for gluten to maintain its original gauche-gauche-gauche conformation of disulfide bond upon heating. In addition, WEAX can reduce the elasticity of gluten and form a soft texture at 25, 55, and 75 °C.
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Affiliation(s)
- Yunping Zhu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University (BTBU) , Beijing 100048, People's Republic of China
- Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University (BTBU) , Beijing 100048, People's Republic of China
| | - Yu Wang
- School of Food and Chemical Engineering, Beijing Technology and Business University (BTBU) , No. 33 Fucheng Road, Beijing 100048, People's Republic of China
| | - Jinlong Li
- School of Food and Chemical Engineering, Beijing Technology and Business University (BTBU) , No. 33 Fucheng Road, Beijing 100048, People's Republic of China
| | - Fang Li
- Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University (BTBU) , Beijing 100048, People's Republic of China
| | - Chao Teng
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University (BTBU) , Beijing 100048, People's Republic of China
- Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University (BTBU) , Beijing 100048, People's Republic of China
| | - Xiuting Li
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University (BTBU) , Beijing 100048, People's Republic of China
- School of Food and Chemical Engineering, Beijing Technology and Business University (BTBU) , No. 33 Fucheng Road, Beijing 100048, People's Republic of China
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