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Yan J, Yu Y, Wang Y, Hou K, Lv C, Chen H, Zhao L, Hao Y, Zhai Z. Homologous Overexpression of Tyrosinase in Trichoderma reesei and Its Application in Glycinin Cross-Linking. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:8742-8748. [PMID: 38564658 DOI: 10.1021/acs.jafc.3c07528] [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: 04/04/2024]
Abstract
Tyrosinase is capable of oxidizing tyrosine residues in proteins, leading to intermolecular protein cross-linking, which could modify the protein network of food and improve the texture of food. To obtain the recombinant tyrosinase with microbial cell factory instead of isolation tyrosinase from the mushroom Agaricus bisporus, a TYR expression cassette was constructed in this study. The expression cassette was electroporated into Trichoderma reesei Rut-C30 and integrated into its genome, resulting in a recombinant strain C30-TYR. After induction with microcrystalline cellulose for 7 days, recombinant tyrosinase could be successfully expressed and secreted by C30-TYR, corresponding to approximately 2.16 g/L tyrosinase in shake-flask cultures. The recombinant TYR was purified by ammonium sulfate precipitation and gel filtration, and the biological activity of purified TYR was 45.6 U/mL. The purified TYR could catalyze the cross-linking of glycinin, and the emulsion stability index of TYR-treated glycinin emulsion was increased by 30.6% compared with the untreated one. The cross-linking of soy glycinin by TYR resulted in altered properties of oil-in-water emulsions compared to emulsions stabilized by native glycinin. Therefore, cross-linking with this recombinant tyrosinase is a feasible approach to improve the properties of protein-stabilized emulsions and gels.
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Affiliation(s)
- Juan Yan
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Yating Yu
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Yi Wang
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Kaixuan Hou
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Chenyan Lv
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Han Chen
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing 100093, China
- Food Laboratory of Zhongyuan, Luohe, Henan 462300, China
| | - Liang Zhao
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
- Food Laboratory of Zhongyuan, Luohe, Henan 462300, China
| | - Yanling Hao
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing 100093, China
- Food Laboratory of Zhongyuan, Luohe, Henan 462300, China
| | - Zhengyuan Zhai
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
- Food Laboratory of Zhongyuan, Luohe, Henan 462300, China
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Cárdenas-Moreno Y, González-Bacerio J, García Arellano H, Del Monte-Martínez A. Oxidoreductase enzymes: Characteristics, applications, and challenges as a biocatalyst. Biotechnol Appl Biochem 2023; 70:2108-2135. [PMID: 37753743 DOI: 10.1002/bab.2513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 09/03/2023] [Indexed: 09/28/2023]
Abstract
Oxidoreductases are enzymes with distinctive characteristics that favor their use in different areas, such as agriculture, environmental management, medicine, and analytical chemistry. Among these enzymes, oxidases, dehydrogenases, peroxidases, and oxygenases are very interesting. Because their substrate diversity, they can be used in different biocatalytic processes by homogeneous and heterogeneous catalysis. Immobilization of these enzymes has favored their use in the solution of different biotechnological problems, with a notable increase in the study and optimization of this technology in the last years. In this review, the main structural and catalytical features of oxidoreductases, their substrate specificity, immobilization, and usage in biocatalytic processes, such as bioconversion, bioremediation, and biosensors obtainment, are presented.
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Affiliation(s)
- Yosberto Cárdenas-Moreno
- Laboratory for Enzyme Technology, Centre for Protein Studies, Faculty of Biology, University of Havana, Havana, Cuba
| | - Jorge González-Bacerio
- Laboratory for Enzyme Technology, Centre for Protein Studies, Faculty of Biology, University of Havana, Havana, Cuba
- Department of Biochemistry, Faculty of Biology, University of Havana, Havana, Cuba
| | - Humberto García Arellano
- Department of Environmental Sciences, Division of Health and Biological Sciences, Metropolitan Autonomous University, Lerma, Mexico, Mexico
| | - Alberto Del Monte-Martínez
- Laboratory for Enzyme Technology, Centre for Protein Studies, Faculty of Biology, University of Havana, Havana, Cuba
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Salunke P, Metzger L. Impact of transglutaminase treatment given to the skim milk before or after microfiltration on the functionality of micellar casein concentrate used in process cheese product and comparison with rennet casein. Int Dairy J 2022. [DOI: 10.1016/j.idairyj.2022.105317] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Effect of Glycerol, Calcium and Transglutaminase Post-Treatment on the Properties of Regenerated Fibers from Rennet-Treated Casein Micelles. COLLOIDS AND INTERFACES 2022. [DOI: 10.3390/colloids6020017] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Regenerated fibers can be prepared from a cooled solution of renneted casein micelles in a wet spinning process. For better handling and stability of the fiber, plasticizers, network modifiers or cross-linkers are used in the production process. For that reason, fibers with different glycerol and calcium content are prepared in this study and subsequently treated with the enzyme transglutaminase before being characterized after air drying. In addition to the swelling behavior in NaOH, H2O, simulated milk ultrafiltrate buffer as well as HCl, the mechanical properties of the fibers are investigated, taking into account their microscopic fine structure. Transglutaminase-treated fibers show sigmoidal absorption curves for all solvents and reach higher equilibrium swelling percentages than untreated fibers. When the calcium content in the coagulation bath is increased from 50 mM to 100 mM, more stabilizing calcium bridges lead to a denser fiber structure that swells more slowly in all solvents considered. With increasing glycerol content, the flexibility of the fibers increases, as indicated by the decrease in elastic moduli, and a fine structure in the sub-µm range becomes visible. The fibers also demonstrate lower elastic moduli when post-treated with transglutaminase. Besides the higher casein content due to the transglutaminase treatment, this could also contribute to the higher equilibrium swelling percentages compared to the untreated fibers.
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Superfine grinding pretreatment enhances emulsifying, gel properties and in vitro digestibility of laccase-treated α-Lactalbumin. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.113082] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Li X, Fan L, Liu Y, Li J. New insights into food O/W emulsion gels: Strategies of reinforcing mechanical properties and outlook of being applied to food 3D printing. Crit Rev Food Sci Nutr 2021; 63:1564-1586. [PMID: 34407718 DOI: 10.1080/10408398.2021.1965953] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
3D printing technology has been widely used in food processing with its advantages of customized food design, personalized nutrition design, and simplified food supply chain. Food emulsion gels have application value and prospects in food 3D printing due to their promising properties, including biodegradability, biocompatibility, as well as dual characteristics of emulsions and biopolymer gels. Food emulsion gels with appropriate mechanical properties, as a new type of food inks, expand the types and functions of the inks. However, food emulsion gels without adequate reinforced mechanical properties may suffer from defects in shape, texture, mouthfeel, and functionality during 3D printing and subsequent applications. Therefore, it is necessary to summarize the strategies to improve the mechanical properties of food emulsion gels. According to the methods of characterizing the mechanical properties of emulsion gels, this article summarizes four strategies for improving the mechanical properties of emulsion gels through two ways: inside-out (reinforcement of interface and reinforcement of cross-linking) and outside-in (physical approaches and environmental regulations), as well as their basic mechanisms. The application status and future research trends of emulsion gels in food 3D printing are finally discussed.
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Affiliation(s)
- Xueqing Li
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Liuping Fan
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Yuanfa Liu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Jinwei Li
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
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Qin Y, Cheng M, Wang L, Huang M, Wang J, Wang C. Comparative study on the microstructure and functional properties of casein in goat milk processed by different methods. Int J Food Sci Technol 2021. [DOI: 10.1111/ijfs.14789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yusi Qin
- College of Food Science and Engineering Qilu University of Technology (Shandong Academy of Sciences) Jinan250353China
| | - Ming Cheng
- Qingdao Research Institute of Husbandry and Veterinary Qingdao266100China
| | - Linlin Wang
- College of Food Science and Engineering Qilu University of Technology (Shandong Academy of Sciences) Jinan250353China
| | - Mengyao Huang
- College of Food Science and Engineering Qilu University of Technology (Shandong Academy of Sciences) Jinan250353China
| | - Jianmin Wang
- College of Animal Science and Veterinary Medicine Shandong Agricultural University Taian271018China
| | - Cunfang Wang
- College of Food Science and Engineering Qilu University of Technology (Shandong Academy of Sciences) Jinan250353China
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Hannß M, Böhm W, Drichel S, Henle T. Acid-Induced Gelation of Enzymatically and Nonenzymatically Cross-Linked Caseins-Texture Properties, and Microstructural Insights. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:13970-13981. [PMID: 33147016 DOI: 10.1021/acs.jafc.0c04445] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Casein gels consist of a fractal organized network of aggregated casein particles. The gel texture thereby depends on the structure, the spatial distribution, and the interaction forces of the network's elementary building blocks. The aim of this study was to explore the technofunctional consequences of a possible specificity of Maillard reaction-induced cross-linking reactions on casein with respect to texture and microstructure of acid gels. Therefore, sodium caseinate glycated with lactose in the dry state (60 °C, aw 0.5) was compared with casein samples cross-linked with methylglyoxal, with glutaraldehyde, or via microbial transglutaminase, respectively, at similar levels of protein cross-linking as confirmed by size-exclusion chromatography under denaturing conditions. Casein gels prepared by acidification with glucono-δ-lactone were characterized concerning pH kinetics during gelation, mechanical texture properties under large deformation, and water-holding capacity, while viscometric properties of casein suspensions were obtained prior to gelation. The gel microstructure was captured by confocal laser scanning microscopy and evaluated by means of image texture analysis. All protein cross-linking reactions studied led to an enhanced gel strength which was accompanied by an increased interconnectivity of the gel network and a decrease in apparent pore sizes. Gels with more densely packed strands, as was the case for enzymatically modified casein, exhibited pronounced mechanical stability. The spontaneous destabilization of the gel network upon prolonged glycation reactions, which was not obviously displayed by microstructural features but connected to an increased viscosity and pronounced pseudoplastic flow of the unacidified suspension, suggests a limitation of particle rearrangements and the weakening of interparticle protein-protein interactions by additional structure attributes formed during the early Maillard reaction (glycoconjugation).
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Affiliation(s)
- Mariella Hannß
- Chair of Food Chemistry, Technische Universität Dresden, 01062 Dresden, Germany
| | - Wendelin Böhm
- Chair of Food Chemistry, Technische Universität Dresden, 01062 Dresden, Germany
| | - Sabine Drichel
- Chair of Food Chemistry, Technische Universität Dresden, 01062 Dresden, Germany
| | - Thomas Henle
- Chair of Food Chemistry, Technische Universität Dresden, 01062 Dresden, Germany
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Li R, Chang CH, Ma DD, Zhao XH. Property changes of caseinate in response to its dityrosine formation induced by horseradish peroxidase, glucose oxidase and d-glucose. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2020; 100:5136-5144. [PMID: 32519762 DOI: 10.1002/jsfa.10562] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 05/31/2020] [Accepted: 06/01/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND A ternary system containing horseradish peroxidase (HRP), glucose oxidase and d-glucose using one- or two-step treatment was evidently able to cross-link proteins via dityrosine formation and thus was assessed for its possible impact on several properties of a protein ingredient caseinate. RESULTS HRP, glucose oxidase and d-glucose were used at 200 U, 6 U and 0.05 mmol g-1 protein to treat caseinate by one- and two-step methods, producing two cross-linked caseinates named CLCN-I and CLCN-II, respectively. In response to the conducted cross-linking, both CLCN-I and CLCN-II gained slightly reduced dispersibility at pH 5-10, enlarged hydrodynamic radius (particle size distribution, 266.37 and 258.33 versus 226.67 nm) and negative zeta-potential (-26.60 and -22.27 versus -14.30 mV) in dispersions, increased water-binding (3.70 and 3.09 versus 2.68 kg kg-1 protein), decreased oil-binding (1.75 and 2.74 versus 2.87 kg kg-1 protein) and emulsifying activity (76.2 and 82.3 versus 94.3 m2 g-1 protein), increased emulsion stability (84.3% and 82.5% versus 78.6%), and enhanced thermal stability with lower mass loss (58.5% and 59.6% versus 64.3%) or higher decomposition temperatures (331.2 °C and 328.7 °C versus 327.6 °C) upon heating at 105-450 °C. In addition, CLCN-I and CLCN-II had decreased gelling temperatures and shortened gelling times when forming acid-induced gels, and the gels were endowed with increased values in four textural indices and finer microstructure. Moreover, CLCN-I with a higher cross-linking extent showed greater property changes than CLCN-II. CONCLUSION This ternary system could be used in caseinate cross-linking to improve properties such as aggregation, emulsification, gelation and thermal stability. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Rui Li
- School of Biological and Food Engineering, Guangdong University of Petrochemical Technology, Maoming, China
| | - Chun-Hui Chang
- School of Biological and Food Engineering, Guangdong University of Petrochemical Technology, Maoming, China
| | - Dan-Dan Ma
- School of Biological and Food Engineering, Guangdong University of Petrochemical Technology, Maoming, China
| | - Xin-Huai Zhao
- School of Biological and Food Engineering, Guangdong University of Petrochemical Technology, Maoming, China
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Raak N, Rohm H, Jaros D. Enzymatically Cross-Linked Sodium Caseinate as Techno-Functional Ingredient in Acid-Induced Milk Gels. FOOD BIOPROCESS TECH 2020. [DOI: 10.1007/s11947-020-02527-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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11
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Concentration-triggered liquid-to-solid transition of sodium caseinate suspensions as a function of temperature and enzymatic cross-linking. Food Hydrocoll 2020. [DOI: 10.1016/j.foodhyd.2019.105464] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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12
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Ma L, Li A, Li T, Li M, Wang X, Hussain MA, Qayum A, Jiang Z, Hou J. Structure and characterization of laccase-crosslinked α-lactalbumin: Impacts of high pressure homogenization pretreatment. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2019.108843] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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13
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Loi M, Quintieri L, De Angelis E, Monaci L, Logrieco AF, Caputo L, Mulè G. Yield improvement of the Italian fresh Giuncata cheese by laccase–induced protein crosslink. Int Dairy J 2020. [DOI: 10.1016/j.idairyj.2019.104555] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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14
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Ahmed I, Ma J, Li Z, Lin H, Xu L, Sun L, Tian S. Effect of tyrosinase and caffeic acid crosslinking of turbot parvalbumin on the digestibility, and release of mediators and cytokines from activated RBL-2H3 cells. Food Chem 2019; 300:125209. [PMID: 31344629 DOI: 10.1016/j.foodchem.2019.125209] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Revised: 07/16/2019] [Accepted: 07/19/2019] [Indexed: 02/03/2023]
Abstract
Turbot can induce allergy in susceptible individuals due to the presence of parvalbumin (PV), a major fish allergen. This study aimed at evaluating the digestibility and the ability of PV to elicit the release of cellular degranulation, following treatment with tyrosinase (PV-Tyr), caffeic acid (PV-CA) and in combination (PV-Tyr/CA), using in vitro digestion and RBL-2H3 (passive rat basophil leukemia) cell line. The digestion assay products revealed that the stability of PV in simulated gastric fluid (SGF) was stronger, while in simulated intestinal fluid (SIF) was rather weak. Western blot analysis revealed that the IgG-binding abilities of the cross-linked PV were markedly reduced. Moreover, crosslinking hampered the release of cellular degranulation process in RBL-2H3 cell lines. PV-Tyr/CA showed highly significant reduction in the release rate of β-hexosaminidase (66.02%), histamine (35.01%), tryptase (29.25%), cysteinyl leukotrienes (29.72%), prostaglandin D2 (34.96%), IL-4 (43.99%) and IL-13 (38.93%) and shown potential in developing hypoallergenic fish products.
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Affiliation(s)
- Ishfaq Ahmed
- College of Food Science and Engineering, Ocean University of China, No. 5, Yushan Road, Qingdao, Shandong Province 266003, PR China
| | - Jiaju Ma
- College of Food Science and Engineering, Ocean University of China, No. 5, Yushan Road, Qingdao, Shandong Province 266003, PR China
| | - Zhenxing Li
- College of Food Science and Engineering, Ocean University of China, No. 5, Yushan Road, Qingdao, Shandong Province 266003, PR China.
| | - Hong Lin
- College of Food Science and Engineering, Ocean University of China, No. 5, Yushan Road, Qingdao, Shandong Province 266003, PR China
| | - Lili Xu
- College of Food Science and Engineering, Ocean University of China, No. 5, Yushan Road, Qingdao, Shandong Province 266003, PR China
| | - Lirui Sun
- College of Food Science and Engineering, Ocean University of China, No. 5, Yushan Road, Qingdao, Shandong Province 266003, PR China
| | - Shenglan Tian
- College of Food Science and Engineering, Ocean University of China, No. 5, Yushan Road, Qingdao, Shandong Province 266003, PR China
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Tian S, Ma J, Ahmed I, Lv L, Li Z, Lin H. Effect of tyrosinase-catalyzed crosslinking on the structure and allergenicity of turbot parvalbumin mediated by caffeic acid. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2019; 99:3501-3508. [PMID: 30623428 DOI: 10.1002/jsfa.9569] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2018] [Revised: 11/08/2018] [Accepted: 01/04/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND Enzymatic treatment of allergenic protein can alter their functional properties under a mild reaction condition due to specificity of enzymes. Phenolic compounds act as mediators and enhance the crosslinking reactions. The study aimed to assess the changes in the structure and immunoglobulin G (IgG) binding capacity of turbot parvalbumin (PV) upon crosslinking with tyrosinase (Tyr) in the absence and presence of caffeic acid. RESULTS Sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) analysis revealed the appearance of higher molecular weight bands (24, 36 kDa) in the crosslinked PV. The secondary structure of crosslinked PV became loosened and disordered. The results of intrinsic fluorescence and ultraviolet absorption spectral analyses, as well as surface hydrophobicity and free amino group analyses also revealed structural changes. As observed by western blot analysis, the intensity of the PV bands reduced upon Tyr treatment, indicating reduced binding of specific IgG to PV. Moreover, the indirect ELISA (enzyme-linked immunosorbent assay) analysis confirmed that the IgG binding ability of crosslinked PV was reduced 34.94%. CONCLUSION Enzymatic treatment mitigated the allergenicity of fish PV, which was closely related to the alterations in the conformational structure. This treatment showed potential for developing hypoallergenic fish products under mild reaction conditions. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Shenglan Tian
- Food Safety Laboratory, College of Food Science and Engineering, Ocean University of China, Ocean University of China, Qingdao, PR China
| | - Jiaju Ma
- Food Safety Laboratory, College of Food Science and Engineering, Ocean University of China, Ocean University of China, Qingdao, PR China
| | - Ishfaq Ahmed
- Food Safety Laboratory, College of Food Science and Engineering, Ocean University of China, Ocean University of China, Qingdao, PR China
| | - Liangtao Lv
- Food Safety Laboratory, College of Food Science and Engineering, Ocean University of China, Ocean University of China, Qingdao, PR China
| | - Zhenxing Li
- Food Safety Laboratory, College of Food Science and Engineering, Ocean University of China, Ocean University of China, Qingdao, PR China
| | - Hong Lin
- Food Safety Laboratory, College of Food Science and Engineering, Ocean University of China, Ocean University of China, Qingdao, PR China
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Raak N, Brehm L, Abbate RA, Henle T, Lederer A, Rohm H, Jaros D. Self-association of casein studied using enzymatic cross-linking at different temperatures. FOOD BIOSCI 2019. [DOI: 10.1016/j.fbio.2019.01.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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17
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Raak N, Schöne C, Rohm H, Jaros D. Acid-induced gelation of enzymatically cross-linked caseinate in different ionic milieus. Food Hydrocoll 2019. [DOI: 10.1016/j.foodhyd.2018.01.037] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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18
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Promising perspectives for ruminal protection of polyunsaturated fatty acids through polyphenol-oxidase-mediated crosslinking of interfacial protein in emulsions. Animal 2018; 12:2539-2550. [PMID: 29547375 DOI: 10.1017/s1751731118000423] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Previously, polyunsaturated fatty acids (PUFA) from linseed oil were effectively protected (>80%) against biohydrogenation through polyphenol-oxidase-mediated protein crosslinking of an emulsion, prepared with polyphenol oxidase (PPO) extract from potato tuber peelings. However, until now, emulsions of only 2 wt% oil have been successfully protected, which implies serious limitations both from a research perspective (e.g. in vivo trials) as well as for further upscaling toward practical applications. Therefore, the aim of this study was to increase the oil/PPO ratio. In the original protocol, the PPO extract served both an emulsifying function as well as a crosslinking function. Here, it was first evaluated whether alternative protein sources could replace the emulsifying function of the PPO extract, with addition of PPO extract and 4-methylcatechol (4MC) to induce crosslinking after emulsion preparation. This approach was then further used to evaluate protection of emulsions with higher oil content. Five candidate emulsifiers (soy glycinin, gelatin, whey protein isolate (WPI), bovine serum albumin and sodium caseinate) were used to prepare 10 wt% oil emulsions, which were diluted five times (w/w) with PPO extract (experiment 1). As a positive control, 2 wt% oil emulsions were prepared directly with PPO extract according to the original protocol. Further, emulsions of 2, 4, 6, 8 and 10 wt% oil were prepared, with 80 wt% PPO extract (experiment 2), or with 90, 80, 70, 60 and 50 wt% PPO extract, respectively (experiment 3) starting from WPI-stabilized emulsions. Enzymatic crosslinking was induced by 24-h incubation with 4MC. Ruminal protection efficiency was evaluated by 24-h in vitro batch simulation of the rumen metabolism. In experiment 1, protection efficiencies were equal or higher than the control (85.5% to 92.5% v. 81.3%). In both experiments 2 and 3, high protection efficiencies (>80%) were achieved, except for emulsions containing 10 wt% oil emulsions (<50% protection), which showed oiling-off after enzymatic crosslinking. This study demonstrated that alternative emulsifier proteins can be used in combination with PPO extract to protect emulsified PUFA-rich oils against ruminal biohydrogenation. By applying the new protocol, 6.5 times less PPO extract was required.
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19
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Size Separation Techniques for the Characterisation of Cross-Linked Casein: A Review of Methods and Their Applications. SEPARATIONS 2018. [DOI: 10.3390/separations5010014] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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Structuring colloidal oat and faba bean protein particles via enzymatic modification. Food Chem 2017; 231:87-95. [PMID: 28450027 DOI: 10.1016/j.foodchem.2017.03.114] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Revised: 03/15/2017] [Accepted: 03/22/2017] [Indexed: 11/24/2022]
Abstract
Oat and faba bean protein isolates were treated with transglutaminase from Streptomyces mobaraensis and tyrosinase from Trichoderma reesei to modify the colloidal properties of protein particles in order to improve their colloidal stability and foaming properties. Transglutaminase crosslinked faba bean protein extensively already with 10nkat/g enzyme dosage. Oat protein was crosslinked to some extent with transglutaminase with higher dosages (100 and 1000nkat/g). Transglutaminase increased the absolute zeta-potential values and reduced the particle size of oat protein particles. As a result, the colloidal stability and foaming properties were improved. Tyrosinase had limited crosslinking ability on both plant protein materials. Tyrosinase greatly reduced the solubility of oat protein despite limited crosslinking. Tyrosinase did not have effect on zeta-potential or colloidal stability of either protein, but it impaired foaming properties of both. Thus, the crosslinking enzymes studied caused significantly different end product functionality, presumably due to the different mechanism of action.
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22
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Cross-linking proteins by laccase: Effects on the droplet size and rheology of emulsions stabilized by sodium caseinate. Food Res Int 2015; 75:244-251. [DOI: 10.1016/j.foodres.2015.06.010] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2015] [Revised: 06/04/2015] [Accepted: 06/08/2015] [Indexed: 11/22/2022]
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23
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Characterizing Length Scales that Determine the Mechanical Behavior of gels from Crosslinked Casein Micelles. FOOD BIOPHYS 2015. [DOI: 10.1007/s11483-015-9399-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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24
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Han YP, Fu M, Zhao XH. The quality of set-style yoghurt responsible to partial lactose hydrolysis followed by protein cross-linking of the skimmed milk. INT J DAIRY TECHNOL 2015. [DOI: 10.1111/1471-0307.12195] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yan-Ping Han
- Key Laboratory of Dairy Science, Ministry of Education; Northeast Agricultural University; Harbin 150030 China
| | - Miao Fu
- Key Laboratory of Dairy Science, Ministry of Education; Northeast Agricultural University; Harbin 150030 China
| | - Xin-Huai Zhao
- Key Laboratory of Dairy Science, Ministry of Education; Northeast Agricultural University; Harbin 150030 China
- Department of Food Science; Northeast Agricultural University; Harbin 150030 China
- Synergetic Innovation Center of Food Safety and Nutrition; Northeast Agricultural University; Harbin 150030 China
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25
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Ioniţă E, Aprodu I, Stănciuc N, Râpeanu G, Bahrim G. Advances in structure–function relationships of tyrosinase from Agaricus bisporus – Investigation on heat-induced conformational changes. Food Chem 2014; 156:129-36. [DOI: 10.1016/j.foodchem.2014.01.089] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2013] [Revised: 01/04/2014] [Accepted: 01/23/2014] [Indexed: 01/10/2023]
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26
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Jiang P, Zhao XH. Gelation andIn VitroDigestibility of Soybean Protein Isolate Treated by a Ternary System Containing Horseradish Peroxidase, Glucose Oxidase, and Glucose. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2014. [DOI: 10.1080/10942912.2013.798737] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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27
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Tyrosinase-catalyzed site-specific immobilization of engineered C-phycocyanin to surface. Sci Rep 2014; 4:5370. [PMID: 24947668 PMCID: PMC4064347 DOI: 10.1038/srep05370] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2013] [Accepted: 05/30/2014] [Indexed: 11/08/2022] Open
Abstract
Enzymatic crosslinking of proteins is often limited by the steric availability of the target residues, as of tyrosyl side chains in the case of tyrosinase. Carrying an N-terminal peptide-tag containing two tyrosine residues, the fluorescent protein C-phycocyanin HisCPC from Synechocystis sp. PCC6803 was crosslinked to fluorescent high-molecular weight forms with tyrosinase. Crosslinking with tyrosinase in the presence of L-tyrosine produced non fluorescent high-molecular weight products. Incubated in the presence of tyrosinase, HisCPC could also be immobilized to amino-modified polystyrene beads thus conferring a blue fluorescence. Crosslinking and immobilization were site-specific as both processes required the presence of the N-terminal peptide in HisCPC.
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28
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Luo ZL, Zhao XH. The preparation and properties of three caseinate-hydrolyzed bovine gelatin composites generated by microbial transglutaminase. CYTA - JOURNAL OF FOOD 2014. [DOI: 10.1080/19476337.2014.882415] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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29
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Chang CH, Kong BH, Zhao XH. Quality attributes of the set-style yoghurt from whole bovine milk as affected by an enzymatic oxidative cross-linking. CYTA - JOURNAL OF FOOD 2014. [DOI: 10.1080/19476337.2013.837963] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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30
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Song CL, Zhao XH. Rheological, gelling and emulsifying properties of a glycosylated and cross-linked caseinate generated by transglutaminase. Int J Food Sci Technol 2013. [DOI: 10.1111/ijfs.12255] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Chun-Li Song
- Key Laboratory of Dairy Science; Ministry of Education; Northeast Agricultural University; Harbin 150030 China
| | - Xin-Huai Zhao
- Key Laboratory of Dairy Science; Ministry of Education; Northeast Agricultural University; Harbin 150030 China
- Department of Food Science; Northeast Agricultural University; Harbin 150030 China
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31
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Ercili-Cura D, Lille M, Legland D, Gaucel S, Poutanen K, Partanen R, Lantto R. Structural mechanisms leading to improved water retention in acid milk gels by use of transglutaminase. Food Hydrocoll 2013. [DOI: 10.1016/j.foodhyd.2012.07.008] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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32
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33
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In vitro digestibility and rheological properties of caseinates treated by an oxidative system containing horseradish peroxidase, glucose oxidase and glucose. Int Dairy J 2012. [DOI: 10.1016/j.idairyj.2012.07.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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34
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Abstract
The process of protein crosslinking comprises the chemical, enzymatic, or chemoenzymatic formation of new covalent bonds between polypeptides. This allows (1) the site-directed coupling of proteins with distinct properties and (2) the de novo assembly of polymeric protein networks. Transferases, hydrolases, and oxidoreductases can be employed as catalysts for the synthesis of crosslinked proteins, thereby complementing chemical crosslinking strategies. Here, we review enzymatic approaches that are used for protein crosslinking at the industrial level or have shown promising potential in investigations on the lab-scale. We illustrate the underlying mechanisms of crosslink formation and point out the roles of the enzymes in their natural environments. Additionally, we discuss advantages and drawbacks of the enzyme-based crosslinking strategies and their potential for different applications.
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Affiliation(s)
- Tobias Heck
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Biomaterials, Lerchenfeldstrasse 5, CH-9014 St. Gallen, Switzerland
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35
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Enzymatic cross-linking of β-lactoglobulin in solution and at air–water interface: Structural constraints. Food Hydrocoll 2012. [DOI: 10.1016/j.foodhyd.2011.11.010] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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36
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Juvonen KR, Lille ME, Laaksonen DE, Mykkänen HM, Niskanen LK, Herzig KH, Poutanen KS, Karhunen LJ. Crosslinking with transglutaminase does not change metabolic effects of sodium caseinate in model beverage in healthy young individuals. Nutr J 2012; 11:35. [PMID: 22657838 PMCID: PMC3412744 DOI: 10.1186/1475-2891-11-35] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2012] [Accepted: 06/01/2012] [Indexed: 12/05/2022] Open
Abstract
Background Postprandial metabolic and appetitive responses of proteins are dependent on protein source and processing technique prior to ingestion. Studies on the postprandial effects of enzymatic crosslinking of milk proteins are sparse. Our aim was to study the effect of transglutaminase (TG)-induced crosslinking of sodium caseinate on postprandial metabolic and appetite responses. Whey protein was included as reference protein. Methods Thirteen healthy individuals (23.3 ± 1.1 y, BMI 21.7 ± 0.4 kg/m2) participated in a single-blind crossover design experiment in which the subjects consumed three different isovolumic (500 g) pourable beverages containing either sodium caseinate (Cas, 29 g), TG-treated sodium caseinate (Cas-TG, 29 g) or whey protein (Wh, 30 g) in a randomized order. Blood samples were collected at baseline and for 4 h postprandially for the determination of plasma glucose, insulin and amino acid (AA) concentrations. Gastric emptying (GE) was measured using the 13 C-breath test method. Appetite was assessed using visual analogue scales. Results All examined postprandial responses were comparable with Cas and Cas-TG. The protein type used in the beverages was reflected as differences in plasma AA concentrations between Wh and Cas, but there were no differences in plasma glucose or insulin responses. A tendency for faster GE rate after Wh was detected. Appetite ratings or subsequent energy intake did not differ among the protein beverages. Conclusions Our results indicate that the metabolic responses of enzymatically crosslinked and native sodium caseinate in a liquid matrix are comparable, suggesting similar digestion and absorption rates and first pass metabolism despite the structural modification of Cas-TG.
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Affiliation(s)
- Kristiina R Juvonen
- Food and Health Research Centre, Department of Clinical Nutrition, Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland.
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37
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McGrath AP, Mithieux SM, Collyer CA, Bakhuis JG, van den Berg M, Sein A, Heinz A, Schmelzer C, Weiss AS, Guss JM. Structure and Activity of Aspergillus nidulans Copper Amine Oxidase. Biochemistry 2011; 50:5718-30. [DOI: 10.1021/bi200555c] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Aaron P. McGrath
- School of Molecular Bioscience, University of Sydney, Sydney, NSW 2006, Australia
| | - Suzanne M. Mithieux
- School of Molecular Bioscience, University of Sydney, Sydney, NSW 2006, Australia
| | - Charles A. Collyer
- School of Molecular Bioscience, University of Sydney, Sydney, NSW 2006, Australia
| | | | | | - Arjen Sein
- DSM Biotechnology Center, Delft, The Netherlands
| | - Andrea Heinz
- Institute of Pharmacy, Biosciences, Martin Luther University Halle-Wittenberg, Wolfgang-Langenbeck-Strasse 4, D-06120 Halle (Saale), Germany
| | - Christian Schmelzer
- Institute of Pharmacy, Biosciences, Martin Luther University Halle-Wittenberg, Wolfgang-Langenbeck-Strasse 4, D-06120 Halle (Saale), Germany
| | - Anthony S. Weiss
- School of Molecular Bioscience, University of Sydney, Sydney, NSW 2006, Australia
| | - J. Mitchell Guss
- School of Molecular Bioscience, University of Sydney, Sydney, NSW 2006, Australia
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38
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Effect of protein structural integrity on cross-linking by tyrosinase evidenced by multidimensional heteronuclear magnetic resonance spectroscopy. J Biotechnol 2010; 151:143-50. [PMID: 21087642 DOI: 10.1016/j.jbiotec.2010.11.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2010] [Revised: 09/30/2010] [Accepted: 11/04/2010] [Indexed: 11/21/2022]
Abstract
Enzymatic cross-linking of proteins can be catalyzed either by transferase-type enzymes, e.g., transglutaminases, or by oxidoreductases, e.g., tyrosinases or laccases. Three-dimensional structure of protein substrate plays a key role in these reactions, that is, the reactivity and end product are strongly modulated by the accessibility of target amino acid residues to the cross-linking enzyme. Typically structural integrity of protein can be distorted by heat, pH, or mechanical action, as well as by varying ionic concentration of the solution. In this study we used partially unfolded protein (wild-type DrkN SH3) and its structurally stabilized mutant (T22G) to investigate the impact of folded/unfolded conformations on cross-linking by Trichoderma reesei tyrosinase. Our results clearly showed formation of intermolecular cross-links solely between unfolded conformations, making them superior substrates to folded proteins when using tyrosinase as a cross-linking enzyme. Multidimensional heteronuclear magnetic resonance experiments in solution state were employed to investigate cross-linked end-products. The results presented in this study form basis for application development in food, medical, cosmetic, textile, packing and other sectors. In addition, the outcome of this study has a high value for the basic understanding of reaction mechanism of tyrosinases on proteins.
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