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Schirmer T, Ludwig C, Scherf KA. Proteomic Characterization of Wheat Protein Fractions Taken at Different Baking Conditions. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:12899-12909. [PMID: 37582505 PMCID: PMC10473044 DOI: 10.1021/acs.jafc.3c02100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 06/22/2023] [Accepted: 07/26/2023] [Indexed: 08/17/2023]
Abstract
Food processing conditions affect the structure, solubility, and therefore accurate detection of gluten proteins. We investigated the influence of dough, bread, and pretzel making on the composition of different wheat protein fractions obtained by Osborne fractionation. The albumin/globulin, gliadin, and glutenin fractions from flour, dough, crispbread, bread, and pretzel were analyzed using RP-HPLC, SDS-PAGE, and untargeted nanoLC-MS/MS. This approach enabled an in-depth profiling of the fractionated proteomes and related compositional changes to processing conditions (mixing, heat, and alkali treatment). Overall, heat treatment demonstrated the most pronounced effect. Label-free quantitation revealed significant changes in the relative abundances of 82 proteins within the fractions of bread crumb and crust in comparison to flour. Certain gluten proteins showed shifts or reductions in particular fractions, indicating their incorporation into the gluten network through SS and non-SS cross-links. Other gluten proteins were enriched, suggesting their limited involvement in the gluten network formation.
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Affiliation(s)
- Tanja
Miriam Schirmer
- Leibniz-Institute
for Food Systems Biology at the Technical University of Munich, Lise-Meitner-Str. 34, 85354 Freising, Germany
| | - Christina Ludwig
- Bavarian
Center for Biomolecular Mass Spectrometry (BayBioMS), Technical University of Munich (TUM), Gregor-Mendel-Straße 4, 85354 Freising, Germany
| | - Katharina Anne Scherf
- Leibniz-Institute
for Food Systems Biology at the Technical University of Munich, Lise-Meitner-Str. 34, 85354 Freising, Germany
- Department
of Bioactive and Functional Food Chemistry, Institute of Applied Biosciences, Karlsruhe Institute of Technology (KIT), Adenauerring 20 a, 76131 Karlsruhe, Germany
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2
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Impact of ethanol, succinic acid, and the combination thereof at levels produced during sponge fermentation on hard wheat, soft wheat, and durum wheat farinograph rheology. J Cereal Sci 2020. [DOI: 10.1016/j.jcs.2020.103082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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3
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Yan B, Yang H, Wu Y, Lian H, Zhang H, Chen W, Fan D, Zhao J. Quality Enhancement Mechanism of Alkali-Free Chinese Northern Steamed Bread by Sourdough Acidification. Molecules 2020; 25:molecules25030726. [PMID: 32046080 PMCID: PMC7037005 DOI: 10.3390/molecules25030726] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 02/05/2020] [Accepted: 02/06/2020] [Indexed: 11/19/2022] Open
Abstract
Alkali was used to adjust the pH and neutralize the excess acids of dough in the processing of Chinese northern steamed bread (CNSB). However, extra alkali addition generally resulted in alkalic flavor and poor appearance. The aim of this work was to investigate the role of proofed dough pH on the texture of CNSB. Correlation analysis demonstrated that the pH value of proofed dough has a significant effect on the textural properties of CNSB. The mechanism studies found that gradual acidification of dough by lactic acid bacteria is a critical factor affecting the process. Conversely, chemical acidification weakened the texture property of products and reduced the dough rheology. Scanning electron microscope (SEM) analysis showed that fermentation with starter for 12 h produced a continuous and extensional protein network in the proofed dough. Furthermore, the decreasing pH of proofed dough increased the extractability of protein in a sodium dodecyl sulfate (SDS)-containing medium and the content of free sulfhydryl (SH). The structure and content of gluten, especially influenced by gradual acidification level, change the quality of the final product. It is a novel approach to obtain an alkali-free CNSB with excellent quality by moderate gluten adjustment.
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Affiliation(s)
- Bowen Yan
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (B.Y.); (H.Y.); (Y.W.); (H.Z.); (W.C.); (J.Z.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Huayu Yang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (B.Y.); (H.Y.); (Y.W.); (H.Z.); (W.C.); (J.Z.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Yejun Wu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (B.Y.); (H.Y.); (Y.W.); (H.Z.); (W.C.); (J.Z.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Huizhang Lian
- Wuxi Huashun Minsheng Food Co. Ltd., Wuxi 214218, China;
| | - Hao Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (B.Y.); (H.Y.); (Y.W.); (H.Z.); (W.C.); (J.Z.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi 214122, China
| | - Wei Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (B.Y.); (H.Y.); (Y.W.); (H.Z.); (W.C.); (J.Z.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi 214122, China
| | - Daming Fan
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (B.Y.); (H.Y.); (Y.W.); (H.Z.); (W.C.); (J.Z.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi 214122, China
- Correspondence: ; Tel.: +86-0510-85326696
| | - Jianxin Zhao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (B.Y.); (H.Y.); (Y.W.); (H.Z.); (W.C.); (J.Z.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi 214122, China
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Rustgi S, Shewry P, Brouns F, Deleu LJ, Delcour JA. Wheat Seed Proteins: Factors Influencing Their Content, Composition, and Technological Properties, and Strategies to Reduce Adverse Reactions. Compr Rev Food Sci Food Saf 2019; 18:1751-1769. [PMID: 33336954 DOI: 10.1111/1541-4337.12493] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 06/16/2019] [Accepted: 07/10/2019] [Indexed: 02/06/2023]
Abstract
Wheat is the primary source of nutrition for many, especially those living in developing countries, and wheat proteins are among the most widely consumed dietary proteins in the world. However, concerns about disorders related to the consumption of wheat and/or wheat gluten proteins have increased sharply in the last 20 years. This review focuses on wheat gluten proteins and amylase trypsin inhibitors, which are considered to be responsible for eliciting most of the intestinal and extraintestinal symptoms experienced by susceptible individuals. Although several approaches have been proposed to reduce the exposure to gluten or immunogenic peptides resulting from its digestion, none have proven sufficiently effective for general use in coeliac-safe diets. Potential approaches to manipulate the content, composition, and technological properties of wheat proteins are therefore discussed, as well as the effects of using gluten isolates in various food systems. Finally, some aspects of the use of gluten-free commodities are discussed.
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Affiliation(s)
- Sachin Rustgi
- Dept. of Plant and Environmental Sciences, School of Health Research, Clemson Univ. Pee Dee Research and Education Centre, Florence, SC, U.S.A.,Dept. of Crop and Soil Sciences, Washington State Univ., Pullman, WA, U.S.A
| | - Peter Shewry
- Rothamsted Research, Harpenden, Hertfordshire, U.K
| | - Fred Brouns
- Dept. of Human Biology, School of Nutrition and Translational Research in Metabolism, Faculty of Health, Medicine and Life Sciences, Maastricht Univ., Universiteitssingel 50, 6200, MD, Maastricht, the Netherlands
| | - Lomme J Deleu
- Laboratory of Food Chemistry and Biochemistry, 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, Leuven Food Science and Nutrition Research Centre (LFoRCe), KU Leuven, Kasteelpark Arenberg 20, B-3001, Leuven, Belgium
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Joye I. Protein Digestibility of Cereal Products. Foods 2019; 8:E199. [PMID: 31181787 PMCID: PMC6617089 DOI: 10.3390/foods8060199] [Citation(s) in RCA: 137] [Impact Index Per Article: 27.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2019] [Revised: 06/01/2019] [Accepted: 06/03/2019] [Indexed: 12/26/2022] Open
Abstract
Protein digestibility is currently a hot research topic and is of big interest to the food industry. Different scoring methods have been developed to describe protein quality. Cereal protein scores are typically low due to a suboptimal amino acid profile and low protein digestibility. Protein digestibility is a result of both external and internal factors. Examples of external factors are physical inaccessibility due to entrapment in e.g., intact cell structures and the presence of antinutritional factors. The main internal factors are the amino acid sequence of the proteins and protein folding and crosslinking. Processing of food is generally designed to increase the overall digestibility through affecting these external and internal factors. However, with proteins, processing may eventually also lead to a decrease in digestibility. In this review, protein digestion and digestibility are discussed with emphasis on the proteins of (pseudo)cereals.
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Affiliation(s)
- Iris Joye
- Department of Food Science, University of Guelph, Guelph, ON N1G 2W1, Canada.
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7
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Lambrecht MA, Deleu LJ, Rombouts I, Delcour JA. Heat-induced network formation between proteins of different sources in model systems, wheat-based noodles and pound cakes. Food Hydrocoll 2018. [DOI: 10.1016/j.foodhyd.2017.12.032] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Muneer F, Johansson E, Hedenqvist MS, Plivelic TS, Markedal KE, Petersen IL, Sørensen JC, Kuktaite R. The impact of newly produced protein and dietary fiber rich fractions of yellow pea (Pisum sativum L.) on the structure and mechanical properties of pasta-like sheets. Food Res Int 2018; 106:607-618. [PMID: 29579966 DOI: 10.1016/j.foodres.2018.01.020] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2017] [Revised: 11/23/2017] [Accepted: 01/10/2018] [Indexed: 11/15/2022]
Abstract
Two fractions from pea (Pisum sativum L.), protein isolate (PPI) and dietary fiber (PF), were newly produced by extraction-fractionation method and characterized in terms of particle size distribution and structural morphology using SEM. The newly produced PPI and PF fractions were processed into pasta-like sheets with varying protein to fiber ratios (100/0, 90/10, 80/20, 70/30 and 50/50, respectively) using high temperature compression molding. We studied protein polymerization, molecular structure and protein-fiber interactions, as well as mechanical performance and cooking characteristics of processed PPI-PF blends. Bi-modal particle size distribution and chemical composition of the PPI and PF fractions influenced significantly the physicochemical properties of the pasta-like sheets. Polymerization was most pronounced for the 100 PPI, 90/10 and 80/20 PPI-PF samples as studied by SE-HPLC, and polymerization decreased with addition of the PF fraction. The mechanical properties, as strength and extensibility, were likewise the highest for the 100 PPI and 90/10 PPI-PF blends, while the E-modulus was similar for all the studied blends (around 38 MPa). The extensibility decreased with the increasing amount of PF in the blend. The highest amounts of β-sheets were found in the pasta-like sheets with high amounts of PPI (100, 90 and 80%), by FT-IR. An increase in PF fraction in the blend, resulted into the high amounts of unordered structures as observed by FT-IR, as well as in an increase in the molecular scattering distances observed by SAXS. The water uptake increased and cooking loss decreased with increased proportions of the PF fraction, and the consistency of 10 min cooked pasta-like sheets were alike al dente texture. The new knowledge obtained in this study on the use of extraction-fractionation method to produce novel PPI and PF fractions for developing innovative high nutritious food can be of a great importance. The obtained knowledge on the pea protein and fiber processing behaviour could greatly contribute to a better control of functional properties of various temperature-processed products from yellow pea.
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Affiliation(s)
- Faraz Muneer
- Department of Plant Breeding, Swedish University of Agricultural Sciences, Box 101, SE-23053 Alnarp, Sweden
| | - Eva Johansson
- Department of Plant Breeding, Swedish University of Agricultural Sciences, Box 101, SE-23053 Alnarp, Sweden
| | - Mikael S Hedenqvist
- KTH Royal Institute of Technology, School of Chemical Science and Engineering, Fibre and Polymer Technology, SE-100 44 Stockholm, Sweden
| | - Tomás S Plivelic
- MAX-IV Laboratory, Lund University, Box 118, SE-221 00 Lund, Sweden
| | - Keld Ejdrup Markedal
- Department of Food Science, University of Copenhagen, 1958 Frederiksberg C., Denmark
| | - Iben Lykke Petersen
- Department of Food Science, University of Copenhagen, 1958 Frederiksberg C., Denmark
| | | | - Ramune Kuktaite
- Department of Plant Breeding, Swedish University of Agricultural Sciences, Box 101, SE-23053 Alnarp, Sweden.
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Wang XY, Guo XN, Zhu KX. Polymerization of wheat gluten and the changes of glutenin macropolymer (GMP) during the production of Chinese steamed bread. Food Chem 2016; 201:275-83. [DOI: 10.1016/j.foodchem.2016.01.072] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2015] [Revised: 12/05/2015] [Accepted: 01/18/2016] [Indexed: 10/22/2022]
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10
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Jayaram VB, Cuyvers S, Verstrepen KJ, Delcour JA, Courtin CM. Succinic acid in levels produced by yeast (Saccharomyces cerevisiae) during fermentation strongly impacts wheat bread dough properties. Food Chem 2014; 151:421-8. [DOI: 10.1016/j.foodchem.2013.11.025] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2013] [Revised: 10/15/2013] [Accepted: 11/05/2013] [Indexed: 11/24/2022]
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