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Nanakali NM, Muhammad Al‐saadi J, Sulaiman Hadi C. Functional and physiochemical properties of the yoghurt modified by heat lactosylation and microbial transglutaminase cross-linking of milk proteins. Food Sci Nutr 2023; 11:722-732. [PMID: 36789078 PMCID: PMC9922141 DOI: 10.1002/fsn3.3108] [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: 08/26/2022] [Revised: 10/02/2022] [Accepted: 10/09/2022] [Indexed: 11/07/2022] Open
Abstract
This study aimed to recognize the effect of Maillard reaction (MR) on the functional properties of milk proteins and the physiochemical, textural, and sensory properties of yoghurt. Heating at 100°C for 2 h increased the carbohydrate ratio in caseins, whey proteins, and total milk proteins from 2.83%, 1.93%, and 1.8% to 4.15%, 3.58%, and 5.32%, respectively. Solubility of the lactosylated caseins, whey proteins, and total milk proteins is increased at low pH values compared to that of the control caseins, whey proteins, and total milk proteins. Lactosylation at 70 and 100°C increased the emulsion activity index (EAI) of caseins at all pH values, especially at pH below 6, and this increment was higher for casein samples treated at 100°C. Foam volume of whey proteins and total milk proteins also increased for samples lactosylated at 100°C compared to control samples. The combination of heating and microbial transglutaminase (MTGase) had a synergistic and enhancing effect on the pH values of yoghurt samples, especially in yoghurt samples produced by whole milk protein compared to control samples. Viscosity and hardness of yoghurt samples were enhanced by heat lactosylation, MTGase treatment, and also storage for 21 days at 7 ± 1°C.
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Affiliation(s)
- Narin Muhammadamin Nanakali
- Department of Food Technology, College of Agricultural Engineering SciencesSalahaddin University‐ErbilErbilIraq
| | | | - Chnar Sulaiman Hadi
- Department of Food Technology, College of Agricultural Engineering SciencesSalahaddin University‐ErbilErbilIraq
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2
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Simayi Z, Aierken W, Rozi P, Ababaikeri G, Bo C, Chenglin Z, Askar G, Xiaojun Y. Optimization of ultrasound-assisted extraction, structural, functional, and antioxidant properties of Glycyrrhiza uralensis seed protein. Process Biochem 2022. [DOI: 10.1016/j.procbio.2022.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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3
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Yang YF, Zhao XH. Structure and property changes of whey protein isolate in response to the chemical modification mediated by horseradish peroxidase, glucose oxidase and d-glucose. Food Chem 2022; 373:131328. [PMID: 34700037 DOI: 10.1016/j.foodchem.2021.131328] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Revised: 08/25/2021] [Accepted: 10/02/2021] [Indexed: 11/19/2022]
Abstract
Whey protein isolate (WPI) was modified by a ternary system containing horseradish peroxidase, glucose oxidase and d-glucose through the one- and two-step protocols, yielding two respective crosslinked products MWPI-1 and MWPI-2 with the enhanced relative dityrosine contents (127.4 and 101.0). Compared with WPI, both MWPI-1 and MWPI-2 had much ordered secondary structure, increased disulfide-bond contents, average particle sizes, surface hydrophobicity, oil-binding capacity, emulsification and thermal stability, but reduced free sulfhydryl groups contents and in vitro digestibility. Moreover, both MWPI-1 and MWPI-2 in dispersions showed higher apparent viscosity, larger viscoelastic moduli than WPI, together with the lower gelling temperatures (67.1 °C and 70.1 °C versus 73.6 °C). Overall, MWPI-1 with a higher crosslinking extent consistently exhibited more remarkable property alteration. It is concluded that the ternary system is an effective approach when aiming to modify secondary structure especially these properties of WPI, such as aggregation, emulsification, gelation, rheology and thermal stability.
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Affiliation(s)
- Yu-Fei Yang
- School of Biology and Food Engineering, Guangdong University of Petrochemical Technology, 525000 Maoming, Guangdong, PR China; State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, 214122 Wuxi, Jiangsu, PR China
| | - Xin-Huai Zhao
- School of Biology and Food Engineering, Guangdong University of Petrochemical Technology, 525000 Maoming, Guangdong, PR China; Research Centre of Food Nutrition and Human Healthcare, Guangdong University of Petrochemical Technology, 525000 Maoming, Guangdong, PR China; Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong University of Petrochemical Technology, 525000 Maoming, Guangdong, PR China.
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4
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Puri R, Bot F, Singh U, O’Mahony JA. Influence of Transglutaminase Crosslinking on Casein Protein Fractionation during Low Temperature Microfiltration. Foods 2021; 10:foods10123146. [PMID: 34945697 PMCID: PMC8701848 DOI: 10.3390/foods10123146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Revised: 11/25/2021] [Accepted: 12/14/2021] [Indexed: 12/03/2022] Open
Abstract
Low temperature microfiltration (MF) is applied in dairy processing to achieve higher protein and microbiological quality ingredients and to support ingredient innovation; however, low temperature reduces hydrophobic interactions between casein proteins and increases the solubility of colloidal calcium phosphate, promoting reversible dissociation of micellar β-casein into the serum phase, and thus into permeate, during MF. Crosslinking of casein proteins using transglutaminase was studied as an approach to reduce the permeation of casein monomers, which typically results in reduced yield of protein in the retentate fraction. Two treatments (a) 5 °C/24 h (TA) and (b) 40 °C/90 min (TB), were applied to the feed before filtration at 5 °C, with a 0.1 µm membrane. Flux was high for TA treatment possibly due to the stabilising effect of transglutaminase on casein micelles. It is likely that formation of isopeptide bonds within and on the surface of micelles results in the micelles being less readily available for protein-protein and protein–membrane interactions, resulting in less resistance to membrane pores and flow passage, thereby conferring higher permeate flux. The results also showed that permeation of casein monomers into the permeate was significantly reduced after both enzymatic treatments as compared to control feed due to the reduced molecular mobility of soluble casein, mainly β-casein, caused by transglutaminase crosslinking.
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Affiliation(s)
- Ritika Puri
- School of Food and Nutritional Sciences, University College Cork, T12 TP07 Cork, Ireland; (F.B.); (J.A.O.)
- Correspondence: or
| | - Francesca Bot
- School of Food and Nutritional Sciences, University College Cork, T12 TP07 Cork, Ireland; (F.B.); (J.A.O.)
| | - Upendra Singh
- Lakeland Dairies, Bailieborough, A82 N6K8 Co. Cavan, Ireland;
| | - James A. O’Mahony
- School of Food and Nutritional Sciences, University College Cork, T12 TP07 Cork, Ireland; (F.B.); (J.A.O.)
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Liu J, Chen S, Jiang X, Xue C, Cao H, Liu D, Sun X. Microbial transglutaminase inhibits the deterioration of high‐temperature‐treated sea cucumber. J FOOD PROCESS PRES 2021. [DOI: 10.1111/jfpp.15985] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Jingyi Liu
- College of Food Science and Engineering Ocean University of China Qingdao China
| | - Shengyuan Chen
- College of Food Science and Engineering Ocean University of China Qingdao China
| | - Xiaoming Jiang
- College of Food Science and Engineering Ocean University of China Qingdao China
- Qingdao Institute of Marine Bioresources for Nutrition & Health Innovation Qingdao China
| | - Changhu Xue
- College of Food Science and Engineering Ocean University of China Qingdao China
- Qingdao Institute of Marine Bioresources for Nutrition & Health Innovation Qingdao China
- Qingdao National Laboratory for Marine Science and Technology Qingdao China
| | - Honghua Cao
- College of Food Science and Engineering Ocean University of China Qingdao China
| | - Danping Liu
- College of Food Science and Engineering Ocean University of China Qingdao China
| | - Xun Sun
- College of Food Science and Engineering Ocean University of China Qingdao China
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6
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Jiang Z, Shi R, Ma L, Munkh-Amgalan G, Bilawal A, Hou J, Tian B. Microwave irradiation treatment improved the structure, emulsifying properties and cell proliferation of laccase-crosslinked α-lactalbumin. Food Hydrocoll 2021. [DOI: 10.1016/j.foodhyd.2021.107036] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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The non-covalent interaction between two polyphenols and caseinate as affected by two types of enzymatic protein crosslinking. Food Chem 2021; 364:130375. [PMID: 34167009 DOI: 10.1016/j.foodchem.2021.130375] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 06/08/2021] [Accepted: 06/13/2021] [Indexed: 12/22/2022]
Abstract
Caseinate was crosslinked by horseradish peroxidase (HRP) or microbial transglutaminase (TGase) and mixed with kaempferol and quercetin at 293-313 K (i.e. 20-40 °C), respectively. Generally, these two polyphenols dose-dependently induced fluorescent quenching in caseinate or its crosslinked products via a static mechanism, while enzymatic crosslinking endowed caseinate with higher affinity for the polyphenols with increased apparent binding constants [(9.94-168.77) × 105versus (4.92-6.53) × 105 L/mol], unchanged binding site number and slightly shortened binding distance. To form protein-polyphenol complexes, hydrophobic force was the main driving force for the HRP-crosslinked caseinate and unreacted caseinate, while hydrogen-bonds and van der Waals force were the main driving forces for the TGase-crosslinked caseinate. Overall, quercetin was more potent than kaempferol to bind to the proteins, while TGase-mediated caseinate crosslinking induced the highest affinity to the polyphenols with the largest ΔG decrease. Thus, two types of crosslinking impacted the driving forces, apparent binding constant and thermodynamic indices of caseinate-polyphenol interaction.
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Pourmohammadi K, Abedi E. Enzymatic modifications of gluten protein: Oxidative enzymes. Food Chem 2021; 356:129679. [PMID: 33827045 DOI: 10.1016/j.foodchem.2021.129679] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 03/14/2021] [Accepted: 03/19/2021] [Indexed: 02/07/2023]
Abstract
Oxidative enzymes treat weak flours in order to restore the gluten network of damaged wheat flour and reduce the economic and technological losses. The present review concentrates on oxidative exogenous enzymes (transglutaminase, laccase, glucose oxidase, hexose oxidase) and oxidative endogenous enzymes (tyrosinase, peroxidase, catalase, sulfhydryl oxidase, lipoxygenase, lipase, protein disulfide isomerase, NAD(P)H-dependent dehydrogenase, thioredoxin reductase and glutathione reductase) and their effects on the rheological, functional, and conformational features of gluten and its subunits. Overall, transglutaminase is used in wheat-based foods through introducing isopeptide bonds (ε-γ glutamyl-lysine). Glucose oxidase, hexose oxidase, peroxidase, sulfhydryl oxidase, lipase, and lipoxygenase form disulfide and nondisulfide bonds through producing hydrogen peroxide. Laccase, tyrosinase, and protein disulfide isomerase form cross-links between tyrosine and cysteine residues by generating radicals. Thioredoxin reductase and glutathione reductase create new inter disulfide bonds. The effect of oxidative enzymes on the formation of covalent cross-linkages were substantially more than non-covalent bonds in gluten structure.
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Affiliation(s)
- Kiana Pourmohammadi
- Department of Food Science and Technology, College of Agriculture, Fasa University, Fasa, Iran.
| | - Elahe Abedi
- Department of Food Science and Technology, College of Agriculture, Fasa University, Fasa, Iran.
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Li M, Blecker C, Karboune S. Molecular and air-water interfacial properties of potato protein upon modification via laccase-catalyzed cross-linking and conjugation with sugar beet pectin. Food Hydrocoll 2021. [DOI: 10.1016/j.foodhyd.2020.106236] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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10
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Liu Q, Cui H, Muhoza B, Duhoranimana E, Hayat K, Zhang X, Ho CT. Mild Enzyme-Induced Gelation Method for Nanoparticle Stabilization: Effect of Transglutaminase and Laccase Cross-Linking. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:1348-1358. [PMID: 33492149 DOI: 10.1021/acs.jafc.0c05444] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Low-environment-sensitive nanoparticles were prepared by enzymatic cross-linking of electrostatic complexes of dextran-grafted whey protein isolate (WPI-Dextran) and chondroitin sulfate (ChS). The effect of transglutaminase (TG) and laccase cross-linking on nanoparticle stability was investigated. Covalent TG cross-linking and grafted dextran cooperatively contributed to the stability of nanoparticles against dissociation and aggregation under various harsh environmental conditions (sharply varying pH, high ionic strength, high temperature, and their combined effects). However, fragmentation induced by laccase treatment did not promote nanoparticle stability. Structural characterization showed that the compact structure promoted by TG-induced covalent isopeptide bonds repressed dissociation against varying environmental conditions and thermal-induced aggregation. Furthermore, the increasing α-helix and decreasing random coil contents benefited the formation of disulfide bonds, further contributing to the enhanced stability of nanoparticles cross-linked by TG, whereas weak hydrophobic interactions and hydrogen bonding as evidenced by the increase in β-sheet and microenvironmental changes were not able to maintain the stability of nanoparticles treated with laccase. Encapsulated cinnamaldehyde presented sustained release from TG-cross-linked nanoparticles, and the bioaccessibility was considerably enhanced to 50.7%. This research developed a novel mild strategy to enhance nanoparticle stability in harsh environments and digestive conditions, which could be an effective delivery vehicle for hydrophobic nutrients and drug applications in food and pharmaceutical industries.
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Affiliation(s)
- Qian Liu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, Jiangsu, China
| | - Heping Cui
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, Jiangsu, China
| | - Bertrand Muhoza
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, Jiangsu, China
| | - Emmanuel Duhoranimana
- Department of Biotechnologies, Faculty of Applied Fundamental Sciences, Institutes of Applied Sciences, Ruhengeri Institute of Higher Education (INES-Ruhengeri), Musanze NM155, Ruhengeri 155, Republic of Rwanda
| | - Khizar Hayat
- Department of Food Science and Nutrition, College of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia
| | - Xiaoming Zhang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, Jiangsu, China
| | - Chi-Tang Ho
- Department of Food Science, Rutgers University, 65 Dudley Road, New Brunswick, New Jersey 08901, United States
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Qayum A, Hussain M, Li M, Li J, Shi R, Li T, Anwar A, Ahmed Z, Hou J, Jiang Z. Gelling, microstructure and water-holding properties of alpha-lactalbumin emulsion gel: Impact of combined ultrasound pretreatment and laccase cross-linking. Food Hydrocoll 2021. [DOI: 10.1016/j.foodhyd.2020.106122] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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12
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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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Li M, Liu L, Kermasha S, Karboune S. Laccase-catalyzed oxidative cross-linking of tyrosine and potato patatin- and lysozyme-derived peptides: Molecular and kinetic study. Enzyme Microb Technol 2020; 143:109694. [PMID: 33375965 DOI: 10.1016/j.enzmictec.2020.109694] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 10/02/2020] [Accepted: 10/15/2020] [Indexed: 10/23/2022]
Abstract
Laccase can catalyze the oxidative cross-linking of peptides, which is useful in the production of proteinaceous materials with enhanced functional properties. However, the kinetics and the pathway of this reaction remain unclear. In the present study, laccase-catalyzed oxidative cross-linking reaction was investigated through a combination of computational analysis, kinetic studies and end-product profiling using selected substrate models, including peptide AG-10 (AKKIVSDGNG) (without tyrosine) derived from lysozyme and tyrosine-containing peptide ST-10 (SYMTDYYLST) from potato protein (patatin), and tyrosine. Both laccases from Trametes versicolor (LacTv) and Coriolus hirsutus (LacCh) were used as biocatalysts. Laccase exhibited higher binding affinity and catalytic efficiency (kcat/Km) towards ST-10 and AG-10 than tyrosine. Among the laccases, LacCh showed higher kcat towards the substrate models than LacTv. Through the molecular docking, this result was attributed to the presence of the ASN206 at the cavity of LacCh. The end product profiles reveal the formation of homo-oligomers (> 5 units) of ST-10 in the reaction catalyzed by LacTv, while polymerization was favored by LacCh. These cross-linked products were identified to have a mix of oligo-tyrosine linkages. In contrast, the cross-linking of AG-10 required the presence of ferulic acid as mediator, which resulted in the formation of hetero-oligomers and polymers of AG-10. The knowledge obtained in the present study provide insight into an effective reaction for peptide cross-linking.
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Affiliation(s)
- Mingqin Li
- Department of Food Science and Agricultural Chemistry, Macdonald Campus, McGill University, Ste-Anne-de-Bellevue, Québec, H9X 3V9, Canada
| | - Lan Liu
- Department of Food Science and Agricultural Chemistry, Macdonald Campus, McGill University, Ste-Anne-de-Bellevue, Québec, H9X 3V9, Canada
| | - Selim Kermasha
- Department of Food Science and Agricultural Chemistry, Macdonald Campus, McGill University, Ste-Anne-de-Bellevue, Québec, H9X 3V9, Canada
| | - Salwa Karboune
- Department of Food Science and Agricultural Chemistry, Macdonald Campus, McGill University, Ste-Anne-de-Bellevue, Québec, H9X 3V9, Canada.
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Glodowsky AP, Ruberto LA, Martorell MM, Mac Cormack WP, Levin GJ. Cold active transglutaminase from antarctic Penicillium chrysogenum: Partial purification, characterization and potential application in food technology. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2020. [DOI: 10.1016/j.bcab.2020.101807] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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15
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Maddock RMA, Pollard GJ, Moreau NG, Perry JJ, Race PR. Enzyme-catalysed polymer cross-linking: Biocatalytic tools for chemical biology, materials science and beyond. Biopolymers 2020; 111:e23390. [PMID: 32640085 DOI: 10.1002/bip.23390] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 06/13/2020] [Accepted: 06/15/2020] [Indexed: 12/11/2022]
Abstract
Intermolecular cross-linking is one of the most important techniques that can be used to fundamentally alter the material properties of a polymer. The introduction of covalent bonds between individual polymer chains creates 3D macromolecular assemblies with enhanced mechanical properties and greater chemical or thermal tolerances. In contrast to many chemical cross-linking reactions, which are the basis of thermoset plastics, enzyme catalysed processes offer a complimentary paradigm for the assembly of cross-linked polymer networks through their predictability and high levels of control. Additionally, enzyme catalysed reactions offer an inherently 'greener' and more biocompatible approach to covalent bond formation, which could include the use of aqueous solvents, ambient temperatures, and heavy metal-free reagents. Here, we review recent progress in the development of biocatalytic methods for polymer cross-linking, with a specific focus on the most promising candidate enzyme classes and their underlying catalytic mechanisms. We also provide exemplars of the use of enzyme catalysed cross-linking reactions in industrially relevant applications, noting the limitations of these approaches and outlining strategies to mitigate reported deficiencies.
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Affiliation(s)
- Rosie M A Maddock
- School of Biochemistry, University of Bristol, University Walk, Bristol, UK.,BrisSynBio Synthetic Biology Research Centre, Life Sciences Building, Tyndall Avenue University of Bristol, Bristol, UK
| | - Gregory J Pollard
- School of Biochemistry, University of Bristol, University Walk, Bristol, UK
| | - Nicolette G Moreau
- School of Biochemistry, University of Bristol, University Walk, Bristol, UK
| | - Justin J Perry
- Department of Applied Sciences, Northumbria University, Ellison Building, Newcastle upon Tyne, UK
| | - Paul R Race
- School of Biochemistry, University of Bristol, University Walk, Bristol, UK.,BrisSynBio Synthetic Biology Research Centre, Life Sciences Building, Tyndall Avenue University of Bristol, Bristol, UK
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Fotschki J, Wróblewska B, Fotschki B, Kalicki B, Rigby N, Mackie A. Microbial transglutaminase alters the immunogenic potential and cross-reactivity of horse and cow milk proteins. J Dairy Sci 2020; 103:2153-2166. [PMID: 31928755 DOI: 10.3168/jds.2019-17264] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 11/12/2019] [Indexed: 12/31/2022]
Abstract
Horse milk is a valuable raw material and a very attractive alternative for scientific research to address the issue of cow milk (CM) allergy due to its protein profile. A decrease in immunoreactive properties can be achieved by thermal, enzymatic, and hydrolytic processing. Therefore, the aim of this study was to explore the possibility of reducing the immunoreactivity of horse milk proteins by microbial transglutaminase (TG) polymerization. To determine how TG linking alters immunoreactivity under simulated digestion of the examined milk, analyses were performed before, during, and after digestion. The dose-dependent (1, 10, and 100 U) effects of microbial TG on horse and cow milk were analyzed. A consecutive 3-stage digestion was simulated with salivary, gastric, and intestinal fluids. The effects of digestion were analyzed by SDS-PAGE, particle size analysis, and size-exclusion chromatography. Immunoreactivity was assessed using competitive ELISA (β-lactoglobulin and α-casein) and immunodot (sera from 7 patients aged 3 to 13 years who are allergic to CM proteins). Horse milk contained almost half of the amount of total proteins in CM. The dose 1 U/g of total milk protein changed the immunoreactivity of both cow and horse milk. With increasing TG doses, α-casein immunoreactivity increased, and β-lactoglobulin decreased. After total digestion, horse milk was characterized by 2.4-fold lower average IgE and 4.8-fold lower IgG reactivity than CM. We found that TG alters the IgE and IgG reactivity of CM after in vitro digestion. Horse milk was less reactive to IgE and IgG than was CM, with animal and patient sera. The effect of TG on immunoreactivity depends on enzyme quantity and milk protein type. The diet based on modified horse milk proteins could be an alternative for some patients with CM protein allergy; however, confirmation through clinical trials is needed.
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Affiliation(s)
- J Fotschki
- Department of Immunology and Food Microbiology, Division of Food Science, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, 10-748 Olsztyn, Poland.
| | - B Wróblewska
- Department of Immunology and Food Microbiology, Division of Food Science, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, 10-748 Olsztyn, Poland
| | - B Fotschki
- Department of Biological Function of Food, Division of Food Science, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, 10-748 Olsztyn, Poland
| | - B Kalicki
- Department of Pediatrics, Nephrology and Allergology, Military Institute of Medicine, 04-141 Warsaw, Poland
| | - N Rigby
- Institute of Food Research, Norwich NR4 7UA, United Kingdom; School of Food Science and Nutrition, University of Leeds, LS2 9JT, United Kingdom
| | - A Mackie
- Institute of Food Research, Norwich NR4 7UA, United Kingdom; School of Food Science and Nutrition, University of Leeds, LS2 9JT, United Kingdom
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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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18
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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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19
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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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20
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Quan W, Zhang C, Zheng M, Lu Z, Zhao H, Lu F. Effects of small laccase from Streptomyces coelicolor on the solution and gel properties of whey protein isolate. Lebensm Wiss Technol 2019. [DOI: 10.1016/j.lwt.2018.11.041] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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21
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Yu XX, Liu C, Lu MH, Liu YL, Yin JY, Zhang YH. Impact of enzymatic hydrolysis followed by transglutaminase-induced cross-linking on decreasing antigenicity and reserving partial interfacial properties of whey protein isolate. Food Funct 2019; 10:1653-1660. [DOI: 10.1039/c8fo01880d] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Whey protein isolate (WPI) was hydrolyzed by alcalase and trypsin for three hydrolysis degrees (DHs), followed by transglutaminase (TGase) induced cross-linking.
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Affiliation(s)
- Xin-Xin Yu
- Key Laboratory of Dairy Science
- Ministry of Education
- Northeast Agricultural University
- Harbin 150030
- PR China
| | - Chang Liu
- Key Laboratory of Dairy Science
- Ministry of Education
- Northeast Agricultural University
- Harbin 150030
- PR China
| | - Man-Hui Lu
- Key Laboratory of Dairy Science
- Ministry of Education
- Northeast Agricultural University
- Harbin 150030
- PR China
| | - Yan-Le Liu
- Key Laboratory of Dairy Science
- Ministry of Education
- Northeast Agricultural University
- Harbin 150030
- PR China
| | - Jia-Yi Yin
- Key Laboratory of Dairy Science
- Ministry of Education
- Northeast Agricultural University
- Harbin 150030
- PR China
| | - Ying-Hua Zhang
- Key Laboratory of Dairy Science
- Ministry of Education
- Northeast Agricultural University
- Harbin 150030
- PR China
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22
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Cermeño M, O'Brien N, FitzGerald RJ. Angiotensin converting enzyme and dipeptidyl peptidase-IV inhibitory activities of transglutaminase treated sodium caseinate hydrolysates. Int Dairy J 2018. [DOI: 10.1016/j.idairyj.2017.11.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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23
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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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24
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Caffeic acid-assisted cross-linking catalyzed by polyphenol oxidase decreases the allergenicity of ovalbumin in a Balb/c mouse model. Food Chem Toxicol 2018; 111:275-283. [DOI: 10.1016/j.fct.2017.11.026] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Revised: 10/10/2017] [Accepted: 11/18/2017] [Indexed: 02/06/2023]
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25
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Properties of bovine gelatin as affected by a cross-linking induced by horseradish peroxidase, glucose oxidase and glucose. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2017. [DOI: 10.1007/s11694-017-9686-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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26
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Biologically Active Digests from Pumpkin Oil Cake Protein: Effect of Cross-linking by Transglutaminase. J AM OIL CHEM SOC 2017. [DOI: 10.1007/s11746-017-3041-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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27
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Jiang Z, Yuan X, Yao K, Li X, Zhang X, Mu Z, Jiang L, Hou J. Laccase-aided modification: Effects on structure, gel properties and antioxidant activities of α-lactalbumin. Lebensm Wiss Technol 2017. [DOI: 10.1016/j.lwt.2017.02.043] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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28
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Jiang P, Liu HF, Zhao XH, Ding Q. Physicochemical properties of soybean protein isolate affected by the cross-linking with horseradish peroxidase, glucose oxidase and glucose. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2017. [DOI: 10.1007/s11694-017-9496-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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29
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A feasibility study on the application of a laccase-mediator system in stirred yoghurt at the pilot scale. Food Hydrocoll 2016. [DOI: 10.1016/j.foodhyd.2016.03.027] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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30
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31
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Abaee A, Madadlou A. Niosome-loaded cold-set whey protein hydrogels. Food Chem 2016; 196:106-13. [DOI: 10.1016/j.foodchem.2015.09.037] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2015] [Revised: 09/08/2015] [Accepted: 09/11/2015] [Indexed: 11/27/2022]
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32
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Struch M, Krahe NK, Linke D, Mokoonlall A, Hinrichs J, Berger RG. Dose dependent effects of a milk ion tolerant laccase on yoghurt gel structure. Lebensm Wiss Technol 2016. [DOI: 10.1016/j.lwt.2015.10.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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33
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Struch M, Linke D, Mokoonlall A, Hinrichs J, Berger RG. Laccase-catalysed cross-linking of a yoghurt-like model system made from skimmed milk with added food-grade mediators. Int Dairy J 2015. [DOI: 10.1016/j.idairyj.2015.04.002] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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34
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de Castro RJS, Sato HH. Synergistic actions of proteolytic enzymes for production of soy protein hydrolysates with antioxidant activities: An approach based on enzymes specificities. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2015. [DOI: 10.1016/j.bcab.2015.08.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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35
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Ahmed AS, El-Bassiony T, Elmalt LM, Ibrahim HR. Identification of potent antioxidant bioactive peptides from goat milk proteins. Food Res Int 2015; 74:80-88. [DOI: 10.1016/j.foodres.2015.04.032] [Citation(s) in RCA: 99] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2014] [Revised: 04/15/2015] [Accepted: 04/18/2015] [Indexed: 01/29/2023]
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36
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Uluko H, Liu L, Lv JP, Zhang SW. Functional Characteristics of Milk Protein Concentrates and Their Modification. Crit Rev Food Sci Nutr 2015; 56:1193-208. [DOI: 10.1080/10408398.2012.758625] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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37
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Zhang Y, Niu Y, Yao F, Dai B, Wang Q, Yu LL. Preparation of novel cross-linked and octylated caseinates using a biphasic enzymatic procedure and their functional properties. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:8655-8662. [PMID: 25090285 DOI: 10.1021/jf5024998] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A novel microbial transglutaminase-catalyzed aqueous-organic biphasic reaction system was successfully developed to prepare caseinate derivatives by cross-linking and incorporating nonpolar octyl tails for the first time. SDS-PAGE and (1)H NMR analysis confirmed that cross-linking and octyl conjugation occurred simultaneously. The octyl substitution degree (SD) was measured by (1)H NMR and used as an index to determine a suitable reaction condition. It was found that at the condition of 0.125% (w/v) protein concentration and 6 h of reaction time, the modified caseinate had the highest SD of 28.96%. The modified caseinate also had an increased surface hydrophobicity, better emulsifying activity, and improved thermal and salt stabilities. However, its emulsion stability or in vitro enzymatic digestibility was slightly lower than that of the native caseinate.
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Affiliation(s)
- Yaqiong Zhang
- Institute of Food and Nutraceutical Science, School of Agriculture and Biology and ‡Instrumental Analysis Center, Shanghai Jiao Tong University , Shanghai 200240, China
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38
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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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39
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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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40
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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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41
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Bagheri L, Madadlou A, Yarmand M, Mousavi ME. Potentially bioactive and caffeine-loaded peptidic sub-micron and nanoscalar particles. J Funct Foods 2014. [DOI: 10.1016/j.jff.2013.11.012] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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42
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Kieliszek M, Misiewicz A. Microbial transglutaminase and its application in the food industry. A review. Folia Microbiol (Praha) 2013; 59:241-50. [PMID: 24198201 PMCID: PMC3971462 DOI: 10.1007/s12223-013-0287-x] [Citation(s) in RCA: 234] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2013] [Accepted: 10/14/2013] [Indexed: 12/19/2022]
Abstract
The extremely high costs of manufacturing transglutaminase from animal origin (EC 2.3.2.13) have prompted scientists to search for new sources of this enzyme. Interdisciplinary efforts have been aimed at producing enzymes synthesised by microorganisms which may have a wider scope of use. Transglutaminase is an enzyme that catalyses the formation of isopeptide bonds between proteins. Its cross-linking property is widely used in various processes: to manufacture cheese and other dairy products, in meat processing, to produce edible films and to manufacture bakery products. Transglutaminase has considerable potential to improve the firmness, viscosity, elasticity and water-binding capacity of food products. In 1989, microbial transglutaminase was isolated from Streptoverticillium sp. Its characterisation indicated that this isoform could be extremely useful as a biotechnological tool in the food industry. Currently, enzymatic preparations are used in almost all industrial branches because of their wide variety and low costs associated with their biotechnical production processes. This paper presents an overview of the literature addressing the characteristics and applications of transglutaminase.
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Affiliation(s)
- Marek Kieliszek
- Department of Microbiology, Institute of Agricultural and Food Biotechnology, Rakowiecka, 36 St., 02-532, Warsaw, Poland,
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43
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Characterisation of the physicochemical, residual antigenicity and cell activity properties of transglutaminase cross-linked sodium caseinate hydrolysates. Int Dairy J 2013. [DOI: 10.1016/j.idairyj.2013.06.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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44
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Zhang YN, Zhao XH. Study on the Functional Properties of Soybean Protein Isolate Cross-Linked with Gelatin by Microbial Transglutaminase. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2013. [DOI: 10.1080/10942912.2011.583705] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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45
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Li Z, Jiang A, Yue T, Wang J, Wang Y, Su J. Purification and identification of five novel antioxidant peptides from goat milk casein hydrolysates. J Dairy Sci 2013; 96:4242-51. [PMID: 23684032 DOI: 10.3168/jds.2012-6511] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2012] [Accepted: 02/23/2013] [Indexed: 11/19/2022]
Abstract
The present research described the preparation, purification, and identification of antioxidant peptides from goat milk casein (GMC). Goat milk casein was hydrolyzed by using a combination of neutral and alkaline proteases to obtain goat milk casein hydrolysates (GMCH) with high antioxidant activity. After desalting by nonpolar macroporous absorption resin, GMCH was isolated and purified by gel filtration chromatography and reversed-phase HPLC, respectively, and further identified by nanoliter electrospray ionization-tandem mass spectrometry. Antioxidant activities of GMC, GMCH, and pure peptides were evaluated and compared using free radical scavenging activity, metal ion chelating ability, and anti-lipid peroxidation ability. Compared with GMC, the free radical-scavenging ability and ferrous ion-chelating ability of GMCH increased significantly. The inhibition effect of lipid peroxidation of GMCH was much stronger than that of tert-butylhydroquinone and phytogermine and a little lower than that of ascorbic acid. The antioxidant activity of GMCH could be attributed to the high antioxidant activity of oligopeptides, especially 5 novel oligopeptides: Val-Tyr-Pro-Phe, Phe-Gly-Gly-Met-Ala-His, Phe-Pro-Tyr-Cys-Ala-Pro, Tyr-Val-Pro-Glu-Pro-Phe, and Tyr-Pro-Pro-Tyr-Glu-Thr-Tyr, which were first observed in GMCH. The antioxidant activity of these 5 novel oligopeptides and GMCH increased 3.59 to 380 times compared with GMC, combining anti-lipid peroxidation ability of GMCH, which indicated that GMCH and its purified fractions in different stages could be used as functional food ingredients, food additives, and pharmaceutical agents in the future.
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Affiliation(s)
- Z Li
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China.
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46
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Wróblewska B, Kaliszewska-Suchodoła A, Kołakowski P, Troszyńska A. The effect of microbial transglutaminase on the immunoreactive and sensory properties of fermented milk beverages. Int J Food Sci Technol 2012. [DOI: 10.1111/ijfs.12054] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Barbara Wróblewska
- Institute of Animal Reproduction and Food Research of the Polish Academy of Sciences Tuwima; 10, 10-747; Olsztyn; Poland
| | - Anna Kaliszewska-Suchodoła
- Institute of Animal Reproduction and Food Research of the Polish Academy of Sciences Tuwima; 10, 10-747; Olsztyn; Poland
| | | | - Agnieszka Troszyńska
- Institute of Animal Reproduction and Food Research of the Polish Academy of Sciences Tuwima; 10, 10-747; Olsztyn; Poland
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47
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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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48
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Jiang SJ, Zhao XH. Cross-Linking and Glucosamine Conjugation of Casein by Transglutaminase and the Emulsifying Property and DigestibilityIn Vitroof the Modified Product. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2012. [DOI: 10.1080/10942912.2010.521274] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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49
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Sheng WW, Zhao XH. Functional properties of limited hydrolysed cross-linked casein-gelatin composites. Int J Food Sci Technol 2012. [DOI: 10.1111/j.1365-2621.2012.03182.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- Wen-Wen Sheng
- Key Laboratory of Dairy Science; Ministry of Education; Northeast Agricultural University; 150030; Harbin; China
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50
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Ma H, Forssell P, Partanen R, Buchert J, Boer H. Charge modifications to improve the emulsifying properties of whey protein isolate. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2011; 59:13246-13253. [PMID: 22060038 DOI: 10.1021/jf203240e] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Whey protein isolate was modified by ethylene diamine in order to shift its isoelectric point to an alkaline pH. The extent of the modification was studied using SDS-PAGE and MALDI-TOF mass spectrometry. The modified whey proteins were used as an emulsifier to stabilize oil-in-water emulsions at acidic and neutral pH ranges, and their emulsifying properties were compared with that of the unmodified whey proteins and with the previously studied ethylene diamine modified sodium caseinate. The emulsifying activity of the modified whey proteins was similar to that of the unmodified ones, but the stability of an emulsion at pH 5 was significantly improved after the modification. Charge and coverage of droplet surface and the displacement of the interfacial proteins by surfactant Tween 20 were further studied as a function of pH. As compared with the unmodified whey proteins, the modified ones were proven to cover the interface more efficiently with extensive surface charge at pH 5, although the interfacial layer was less resistant to the surfactant displacement.
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Affiliation(s)
- Hairan Ma
- VTT Technical Research Centre of Finland, PO Box 1000, FI-02044 VTT, Finland
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