1
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Giefer P, Heyse A, Drusch S, Fritsching U. Cysteines in β-lactoglobulin affects its interfacial adsorption and protein film stabilization. J Colloid Interface Sci 2025; 677:217-230. [PMID: 39089128 DOI: 10.1016/j.jcis.2024.07.088] [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: 03/28/2024] [Revised: 06/28/2024] [Accepted: 07/10/2024] [Indexed: 08/03/2024]
Abstract
HYPOTHESIS Disulfide bonds in proteins are strong chemical bonds forming the secondary and tertiary structure like in the dairy protein β-lactoglobulin. We hypothesize that the partial or complete removal of disulfide bonds affects the structural rearrangement of proteins caused by intra- and intermolecular interactions that in turn define the interfacial activity of proteins at oil/water interfaces. The experimental and numerical investigations contribute to the mechanistic understanding of the structure-function relationship, especially for the interfacial adsorption behavior of proteins. EXPERIMENTAL AND NUMERICAL Systematically, the 5 cysteines of β-lactoglobulin were recombinantly exchanged by alanine. First, the protein structure of the variants in bulk was analyzed with Fourier-transform-infrared-spectroscopy and molecular dynamic simulations. Second, the structural changes after adsorption to the interface have been also analyzed by molecular dynamic simulations. The adsorption behavior was investigated by pendant drop analysis and the interfacial film properties by dilatational rheology. FINDINGS The structural flexibility of β-lactoglobulin with no cysteines encourages its unfolding at the interface, and accelerates the interfacial protein film formation that results in more visco-elastic films in comparison to the reference.
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Affiliation(s)
- Patrick Giefer
- University of Bremen, Particles and Process Engineering, Bibliothekstraße 1, Bremen, 28359, Germany.
| | - Anja Heyse
- Technical University of Berlin, Department of Food Technology and Food Material Science, Institute of Food Technology and Food Chemistry, Straße des 17. Juni 135, Berlin, 10623, Germany
| | - Stephan Drusch
- Technical University of Berlin, Department of Food Technology and Food Material Science, Institute of Food Technology and Food Chemistry, Straße des 17. Juni 135, Berlin, 10623, Germany.
| | - Udo Fritsching
- University of Bremen, Particles and Process Engineering, Bibliothekstraße 1, Bremen, 28359, Germany; Leibniz Institute for Materials Engineering-IWT, Badgasteiner Str. 3, Bremen, 28359, Germany
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2
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Ahadi-Amandi K, Ghadami SA, Sayari N, Khodarahmi R. Purification of α-lactalbumin and β-lactoglobulin from cow milk. Protein Expr Purif 2024; 223:106555. [PMID: 39004261 DOI: 10.1016/j.pep.2024.106555] [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: 05/15/2024] [Revised: 07/01/2024] [Accepted: 07/11/2024] [Indexed: 07/16/2024]
Abstract
Whey, a valuable byproduct of dairy processing, contains essential proteins like β-lactoglobulin (βLG) and α-lactalbumin (αLA), making it a focus of research for its nutritional benefits. Various techniques, including chromatography and membrane filtration, are employed for protein extraction, often requiring multiple purification steps. One approach that has gained prominence for the purification and concentration of proteins, including those present in whey, is the use of polyethylene glycol (PEG) in aqueous two-phase systems. Our study simplifies this process by using PEG alone for whey protein purification. This approach yielded impressive results, achieving 92 % purity for βLG and 90 % for αLA. These findings underscore the effectiveness of PEG-based purification in isolating whey proteins with high purity.
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Affiliation(s)
- Kimia Ahadi-Amandi
- Department of Biotechnology, Faculty of Biological Sciences, Alzahra University, Tehran, Iran
| | | | - Narges Sayari
- Department of Biotechnology, Faculty of Biological Sciences, Alzahra University, Tehran, Iran
| | - Reza Khodarahmi
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran; Department of Pharmacognosy and Biotechnology, Faculty of Pharmacy, Kermanshah University of Medical Sciences, Kermanshah, Iran
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3
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Wang ZL, Tang X, Wang M, She YX, Yang BR, Sheng QH, Abd El-Aty AM. β-Lactoglobulin Separation from Whey Protein: A Comprehensive Review of Isolation and Purification Techniques and Future Perspectives. J Dairy Sci 2024:S0022-0302(24)01177-9. [PMID: 39343213 DOI: 10.3168/jds.2024-25321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2024] [Accepted: 08/31/2024] [Indexed: 10/01/2024]
Abstract
Cow milk, although rich in essential nutrients, is a well-known allergic food that can cause allergic reactions in infants and young children. β-Lactoglobulin accounts for 10% of the total protein in milk and 50% of the whey protein, which has high nutritional value and excellent functional properties but is also the main allergen leading to milk protein allergy. Exploring the mechanism of milk allergy and selecting suitable separation and purification methods to obtain high-purity β-Lactoglobulin is the premise of research on reducing allergenicity. In this review, the research progress in membrane technology, gel filtration chromatography, ion exchange chromatography, affinity chromatography, precipitation and aqueous 2-phase system separation for the separation and purification of milk β-Lactoglobulin is reviewed in detail to promote the further development of milk β-Lactoglobulin separation and purification methods and provide a new method for the development of hypoallergenic dairy products in the future. Among these methods, ion exchange chromatography and gel chromatography are widely used, precipitation is generally used as a crude purification step, and high-performance liquid chromatography and membrane technology are used for further purification to improve the purity of allergens.
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Affiliation(s)
- Z L Wang
- School of Food Science and Technology, Hebei Agricultural University, 07100, Baoding, China
| | - X Tang
- School of Food Science and Technology, Hebei Agricultural University, 07100, Baoding, China
| | - M Wang
- Institute of Quality Standardization & Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, 100081 Beijing, China.
| | - Y X She
- Institute of Quality Standardization & Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, 100081 Beijing, China
| | - B R Yang
- Food Sciences, Department of Life Technologies, Faculty of Technology, University of Turku, FI-20014, Finland, China
| | - Q H Sheng
- School of Food Science and Technology, Hebei Agricultural University, 07100, Baoding, China.
| | - A M Abd El-Aty
- Department of Pharmacology, Faculty of Veterinary Medicine, Cairo University, 12211 Giza, Egypt; Department of Medical Pharmacology, Medical Faculty, Ataturk University, 25240 Erzurum, Turkey
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4
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Simoni M, Temmar R, De Marchi M, Revello-Chion A, Pozza M, Righi F, Manuelian CL. Milking system and diet forage type effect on milk quality of Italian Holstein-Friesian. J Dairy Sci 2024; 107:6983-6993. [PMID: 38825097 DOI: 10.3168/jds.2023-24464] [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: 11/23/2023] [Accepted: 04/16/2024] [Indexed: 06/04/2024]
Abstract
Moving from conventional (CMS) to automatic (AMS) milking systems could affect milk quality. Moreover, the type and preservation methods of the forages used in the TMR, such as alfalfa hay (HTMR) or corn silage (STMR) have been demonstrated to modify milk composition. Thus, this study investigated the effect of implementing AMS and different diet forage types on the quality of Italian Holstein-Friesian bulk milk. Milk samples (n = 168) were collected monthly from 21 commercial farms in northern Italy during a period of 8 mo. Farms were categorized into 4 groups according to their milking system (CMS vs. AMS) and diet forage type (HTMR vs. STMR). Milk quality data were analyzed through the mixed procedure for repeated measurement of SAS with the milking system, diet forage type, and sampling day as fixed effects. Milking through the AMS led to lower milk fat, freezing point, and β-LG A; longer coagulation time; and higher K content, pH, and β-LG B than CMS. Cows fed STMR produced milk with greater fat, protein, casein, Mg content, titratable acidity, and β-LG A, but with reduced curd firming time, freezing point, and β-LG B than those fed HTMR. In conclusion, milk quality is not only altered by the diet's forage type and characteristics but also by the milking system.
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Affiliation(s)
- Marica Simoni
- Department of Veterinary Science, University of Parma, 43126 Parma, Italy
| | - Rokia Temmar
- Department of Agronomy, Food, Natural resources, Animals and Environment (DAFNAE), University of Padova, 35020 Legnaro (PD), Italy
| | - Massimo De Marchi
- Department of Agronomy, Food, Natural resources, Animals and Environment (DAFNAE), University of Padova, 35020 Legnaro (PD), Italy
| | - Andrea Revello-Chion
- Associazione Regionale Allevatori Piemonte, Laboratorio Analisi, 12100 Cuneo, Italy
| | - Marta Pozza
- Department of Agronomy, Food, Natural resources, Animals and Environment (DAFNAE), University of Padova, 35020 Legnaro (PD), Italy
| | - Federico Righi
- Department of Veterinary Science, University of Parma, 43126 Parma, Italy.
| | - Carmen L Manuelian
- Group of Ruminant Research (G2R), Department of Animal and Food Sciences, Universitat Autònoma de Barcelona (UAB), 08193, Bellaterra, Spain
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5
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Chaabane L, Loupiac C, Bouyer F, Bezverkhyy I, Foley S, Assifaoui A. Adsorption of β-Lactoglobulin on Thiol-Functionalized Mesoporous Silica. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:16132-16144. [PMID: 39037867 DOI: 10.1021/acs.langmuir.4c01099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/24/2024]
Abstract
SBA-15 mesoporous materials were synthesized with different pore sizes (5 and 10 nm) and thiol-functionalized groups and then characterized to describe their ability to differentially adsorb β-lactoglobulin (BLG), a globular protein with an ellipsoid shape measuring 6.9 nm in length and 3.6 nm in width. All adsorption experiments showed that the adsorption capacities of mesoporous materials for BLG were dependent on the duration of contact between the two materials (mesoporous material and BLG) and the initial BLG concentration. It was also shown that the pore sizes and thiol groups of SBA-15-based adsorbents are important factors for the BLG adsorption capacities. Among the tested adsorbents, thiol-functionalized SBA-15 with a 10 nm pore size (SBA-15-SH-10) showed the highest adsorption capacity (0.560 g·g-1) under optimal experimental conditions. Kinetics studies demonstrated that the adsorption occurs predominantly inside the pores, with interactions occurring on heterogeneous surfaces. In addition, the thermodynamic parameters indicate a spontaneous and exothermic behavior of the BLG adsorption process onto the thiol-functionalized SBA-15 mesoporous adsorbent. Finally, the characterization of the SBA-15-SH-10 adsorbent at 308 K showed the occurrence of an oxidation reaction of the thiol groups to sulfonate groups during the adsorption process as confirmed by Raman spectroscopy. The spectra recorded after adsorption of the protein showed that this adsorption did not affect the secondary structure of the protein.
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Affiliation(s)
- Laroussi Chaabane
- Université Bourgogne Franche-Comté, Institut Agro, Université Bourgogne, INRAE, UMR PAM 1517, 21000 Dijon, France
| | - Camille Loupiac
- Université Bourgogne Franche-Comté, Institut Agro, Université Bourgogne, INRAE, UMR PAM 1517, 21000 Dijon, France
| | - Frédéric Bouyer
- Laboratoire Interdisciplinaire Carnot de Bourgogne, UMR 6303 CNRS─Université de Bourgogne, BP 47 870, 21078 Dijon Cedex, France
| | - Igor Bezverkhyy
- Laboratoire Interdisciplinaire Carnot de Bourgogne, UMR 6303 CNRS─Université de Bourgogne, BP 47 870, 21078 Dijon Cedex, France
| | - Sarah Foley
- Laboratoire Chrono-environnement (UMR CNRS 6249), Université de Bourgogne Franche-Comté, F-25000 Besançon, France
| | - Ali Assifaoui
- Université Bourgogne Franche-Comté, Institut Agro, Université Bourgogne, INRAE, UMR PAM 1517, 21000 Dijon, France
- Department of Pharmaceutical Technology, School of Pharmacy, Université de Bourgogne, 7 Bd Jeanne d'Arc, 21079 Dijon, France
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6
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Maryniak NZ, Mancino M, Sztuk TKS, Gao Y, Sancho AI, Hansen EB, Bøgh KL. Impact of processing on the sensitising capacity and cross-reactivity of cow's and camel milk proteins in a Brown Norway rat study. Food Chem Toxicol 2024; 189:114761. [PMID: 38796088 DOI: 10.1016/j.fct.2024.114761] [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: 02/25/2024] [Revised: 05/14/2024] [Accepted: 05/21/2024] [Indexed: 05/28/2024]
Abstract
Infant formulas based on hydrolysed cow's milk proteins are used when breastfeeding is not feasible in cow's milk allergic infants. Camel milk has been shown to be well-tolerated by the majority of children with cow's milk allergy (CMA) and may be a substitute in management of CMA. Here we aimed to evaluate the impact of processing on immunogenicity, sensitising, antibody-binding and cross-reactive capacity of cow's and camel milk. Cow's and camel milk were processed by means of enzyme hydrolysis or heat treatment. Brown Norway rats were immunised with PBS, non-processed, enzyme hydrolysed or heat-treated cow's or camel milk. In vivo tests were performed for evaluation of clinical signs. Blood and faecal samples were analysed for levels and specificity of antibody responses. Cow's and camel milk showed similar sensitising capacity. Processing decreased the sensitising capacity of cow's milk, yet only enzyme hydrolysis but not heat treatment decreased the sensitising capacity of camel milk. Processing affected the specificity of antibodies raised in the rats, though the effect differed between cow's and camel milk. The study showed a low cross-reactivity between cow's and camel milk, which was decreased with processing, suggesting that processing of camel milk may improve its usefulness in CMA management.
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Affiliation(s)
| | - Matteo Mancino
- National Food Institute, Technical University of Denmark, Kgs. Lyngby, Denmark
| | | | - Yumei Gao
- Ausnutria Dairy (China) Co., Ltd., Changsha, China
| | - Ana Isabel Sancho
- National Food Institute, Technical University of Denmark, Kgs. Lyngby, Denmark
| | - Egon Bech Hansen
- National Food Institute, Technical University of Denmark, Kgs. Lyngby, Denmark
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7
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Wang Y, Liang X, Andrikopoulos N, Tang H, He F, Yin X, Li Y, Ding F, Peng G, Mortimer M, Ke PC. Remediation of Metal Oxide Nanotoxicity with a Functional Amyloid. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2310314. [PMID: 38582521 PMCID: PMC11187920 DOI: 10.1002/advs.202310314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 03/21/2024] [Indexed: 04/08/2024]
Abstract
Understanding the environmental health and safety of nanomaterials (NanoEHS) is essential for the sustained development of nanotechnology. Although extensive research over the past two decades has elucidated the phenomena, mechanisms, and implications of nanomaterials in cellular and organismal models, the active remediation of the adverse biological and environmental effects of nanomaterials remains largely unexplored. Inspired by recent developments in functional amyloids for biomedical and environmental engineering, this work shows their new utility as metallothionein mimics in the strategically important area of NanoEHS. Specifically, metal ions released from CuO and ZnO nanoparticles are sequestered through cysteine coordination and electrostatic interactions with beta-lactoglobulin (bLg) amyloid, as revealed by inductively coupled plasma mass spectrometry and molecular dynamics simulations. The toxicity of the metal oxide nanoparticles is subsequently mitigated by functional amyloids, as validated by cell viability and apoptosis assays in vitro and murine survival and biomarker assays in vivo. As bLg amyloid fibrils can be readily produced from whey in large quantities at a low cost, the study offers a crucial strategy for remediating the biological and environmental footprints of transition metal oxide nanomaterials.
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Affiliation(s)
- Yue Wang
- School of Biomedical Sciences and EngineeringGuangzhou International CampusSouth China University of TechnologyGuangzhou510006China
- Nanomedicine CenterGreat Bay Area National Institute for Nanotechnology Innovation136 Kaiyuan AvenueGuangzhou510700China
| | - Xiufang Liang
- School of Biomedical Sciences and EngineeringGuangzhou International CampusSouth China University of TechnologyGuangzhou510006China
- Nanomedicine CenterGreat Bay Area National Institute for Nanotechnology Innovation136 Kaiyuan AvenueGuangzhou510700China
| | - Nicholas Andrikopoulos
- Nanomedicine CenterGreat Bay Area National Institute for Nanotechnology Innovation136 Kaiyuan AvenueGuangzhou510700China
- Drug DeliveryDisposition and DynamicsMonash Institute of Pharmaceutical SciencesMonash University381 Royal ParadeParkvilleVIC3052Australia
| | - Huayuan Tang
- Department of Engineering MechanicsHohai UniversityNanjing211100China
- Department of Physics and AstronomyClemson UniversityClemsonSC29634USA
| | - Fei He
- College of Environmental Science and EngineeringKey Laboratory of Yangtze River Water EnvironmentTongji University1239 Siping RoadShanghai200092China
| | - Xiang Yin
- College of Environmental Science and EngineeringKey Laboratory of Yangtze River Water EnvironmentTongji University1239 Siping RoadShanghai200092China
| | - Yuhuan Li
- Drug DeliveryDisposition and DynamicsMonash Institute of Pharmaceutical SciencesMonash University381 Royal ParadeParkvilleVIC3052Australia
- Liver Cancer InstituteZhongshan HospitalKey Laboratory of Carcinogenesis and Cancer InvasionMinistry of EducationFudan UniversityShanghai200032China
| | - Feng Ding
- Department of Physics and AstronomyClemson UniversityClemsonSC29634USA
| | - Guotao Peng
- College of Environmental Science and EngineeringKey Laboratory of Yangtze River Water EnvironmentTongji University1239 Siping RoadShanghai200092China
| | - Monika Mortimer
- Laboratory of Environmental ToxicologyNational Institute of Chemical Physics and BiophysicsAkadeemia tee 23Tallinn12618Estonia
| | - Pu Chun Ke
- Nanomedicine CenterGreat Bay Area National Institute for Nanotechnology Innovation136 Kaiyuan AvenueGuangzhou510700China
- Drug DeliveryDisposition and DynamicsMonash Institute of Pharmaceutical SciencesMonash University381 Royal ParadeParkvilleVIC3052Australia
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8
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Pham PC, Taylor M, Nguyen GTH, Beltran J, Bennett JL, Ho J, Donald WA. Binding of Per- and Polyfluoroalkyl Substances to β-Lactoglobulin from Bovine Milk. Chem Res Toxicol 2024; 37:757-770. [PMID: 38625865 DOI: 10.1021/acs.chemrestox.4c00021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/18/2024]
Abstract
Per- and polyfluoroalkyl substances (PFAS) are known for their high environmental persistence and potential toxicity. The presence of PFAS has been reported in many dairy products. However, the mechanisms underlying the accumulation of PFAS in these products remain unclear. Here, we used native mass spectrometry and molecular dynamics simulations to probe the interactions between 19 PFAS of environmental concern and two isoforms of the major bovine whey protein β-lactoglobulin (β-LG). We observed that six of these PFAS bound to both protein isoforms with low- to mid-micromolar dissociation constants. Based on quantitative, competitive binding experiments with endogenous ligands, PFAS can bind orthosterically and preferentially to β-LG's hydrophobic ligand-binding calyx. β-Cyclodextrin can also suppress binding of PFAS to β-LG owing to the ability of β-cyclodextrin to directly sequester PFAS from solution. This research sheds light on PFAS-β-LG binding, suggesting that such interactions could impact lipid-fatty acid transport in bovine mammary glands at high PFAS concentrations. Furthermore, our results highlight the potential use of β-cyclodextrin in mitigating PFAS binding, providing insights toward the development of strategies to reduce PFAS accumulation in dairy products and other biological systems.
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Affiliation(s)
- P Chi Pham
- School of Chemistry, University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Mackenzie Taylor
- School of Chemistry, University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Giang T H Nguyen
- School of Chemistry, University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Jeunesse Beltran
- School of Chemistry, University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Jack L Bennett
- School of Chemistry, University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Junming Ho
- School of Chemistry, University of New South Wales, Sydney, New South Wales 2052, Australia
| | - William A Donald
- School of Chemistry, University of New South Wales, Sydney, New South Wales 2052, Australia
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9
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Yadav A, Vuković L, Narayan M. An Atomic and Molecular Insight into How PFOA Reduces α-Helicity, Compromises Substrate Binding, and Creates Binding Pockets in a Model Globular Protein. J Am Chem Soc 2024; 146:12766-12777. [PMID: 38656109 DOI: 10.1021/jacs.4c02934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Per- and polyfluoroalkyl substances (PFAS) pose significant health risks due to their widespread presence in various environmental and biological matrices. However, the molecular-level mechanisms underlying the interactions between PFAS and biological constituents, including proteins, carbohydrates, lipids, and DNA, remain poorly understood. Here, we investigate the interactions between a legacy PFAS, viz. perfluorooctanoic acid (PFOA), and the milk protein β-lactoglobulin (BLG) obtained using a combination of experimental and computational techniques. Circular dichroism studies reveal that PFOA perturbs the secondary structure of BLG, by driving a dose-dependent loss of α-helicity and alterations in its β-sheet content. Furthermore, exposure of the protein to PFOA attenuates the on-rate constant for the binding of the hydrophobic probe 8-anilino-1-naphthalene sulfonic acid (ANS), suggesting potential functional impairment of BLG by PFOA. Steered molecular dynamics and umbrella sampling calculations reveal that PFOA binding leads to the formation of an energetically favorable novel binding pocket within the protein, when residues 129-142 are steered to unfold from their initial α-helical structure, wherein a host of intermolecular interactions between PFOA and BLG's residues serve to insert the PFOA into the region between the unfolded helix and beta-sheets. Together, the data provide a novel understanding of the atomic and molecular mechanism(s) by which PFAS modulates structure and function in a globular protein, leading to a beginning of our understanding of altered biological outcomes.
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Affiliation(s)
- Anju Yadav
- Department of Chemistry and Biochemistry, The University of Texas at El Paso, El Paso, Texas 79968, United States
| | - Lela Vuković
- Department of Chemistry and Biochemistry, The University of Texas at El Paso, El Paso, Texas 79968, United States
- Computational Science Program, The University of Texas at El Paso, El Paso, Texas 79968, United States
- Bioinformatics Program, The University of Texas at El Paso, El Paso, Texas 79968, United States
| | - Mahesh Narayan
- Department of Chemistry and Biochemistry, The University of Texas at El Paso, El Paso, Texas 79968, United States
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10
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Zhuo X, Ochner J, Leng D, Foderà V, Löbmann K. Exploring the effect of protein secondary structure on the solid state and physical stability of protein-based amorphous solid dispersions. Eur J Pharm Biopharm 2024; 198:114274. [PMID: 38561067 DOI: 10.1016/j.ejpb.2024.114274] [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: 01/03/2024] [Revised: 03/25/2024] [Accepted: 03/29/2024] [Indexed: 04/04/2024]
Abstract
Amorphous solid dispersions (ASDs) using proteins as carriers have emerged as a promising strategy for stabilizing amorphous drug molecules. Proteins possess diverse three-dimensional structures that significantly influence their own properties and may also impact the properties of ASDs. We prepared β-lactoglobulin (BLG) with different contents of β-sheet and α-helical secondary structures by initially dissolving BLG in different mixed solvents, containing different ratios of water, methanol/ethanol, and acetic acid, followed by spray drying of the solutions. Our findings revealed that an increase in α-helical content resulted in a decrease in the glass transition temperature (Tg) of the protein. Subsequently, we utilized the corresponding mixed solvents to dissolve both BLG and the model drug celecoxib (CEL), allowing the preparation of ASDs containing either β-sheet-rich or α-helix/random coil-rich BLG. Using spray drying, we successfully developed BLG-based ASDs with drug loadings ranging from 10 wt% to 90 wt%. At drug loadings below 40 wt%, samples prepared using both methods exhibited single-phase ASDs. However, heterogeneous systems formed when the drug loading exceeded 40 wt%. At higher drug loadings, physical stability assessments demonstrated that the α-helix/random coil-rich BLG structure exerted a more pronounced stabilizing effect on the drug-rich phase compared to the β-sheet-rich BLG. Overall, our results highlight the importance of considering protein secondary structure in the design of ASDs.
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Affiliation(s)
- Xuezhi Zhuo
- Department of Pharmacy, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Julia Ochner
- Department of Pharmacy, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Donglei Leng
- Zerion Pharma A/S, Blokken 11, DK-3460 Birkerød, Denmark
| | - Vito Foderà
- Department of Pharmacy, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Korbinian Löbmann
- Department of Pharmacy, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark; Zerion Pharma A/S, Blokken 11, DK-3460 Birkerød, Denmark.
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11
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Rai S, Pramanik S, Mukherjee S. Deciphering the liquid-liquid phase separation induced modulation in the structure, dynamics, and enzymatic activity of an ordered protein β-lactoglobulin. Chem Sci 2024; 15:3936-3948. [PMID: 38487243 PMCID: PMC10935713 DOI: 10.1039/d3sc06802a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Accepted: 01/23/2024] [Indexed: 03/17/2024] Open
Abstract
Owing to the significant role in the subcellular organization of biomolecules, physiology, and the realm of biomimetic materials, studies related to biomolecular condensates formed through liquid-liquid phase separation (LLPS) have emerged as a growing area of research. Despite valuable contributions of prior research, there is untapped potential in exploring the influence of phase separation on the conformational dynamics and enzymatic activities of native proteins. Herein, we investigate the LLPS of β-lactoglobulin (β-LG), a non-intrinsically disordered protein, under crowded conditions. In-depth characterization through spectroscopic and microscopic techniques revealed the formation of dynamic liquid-like droplets, distinct from protein aggregates, driven by hydrophobic interactions. Our analyses revealed that phase separation can alter structural flexibility and photophysical properties. Importantly, the phase-separated β-LG exhibited efficient enzymatic activity as an esterase; a characteristic seemingly exclusive to β-LG droplets. The droplets acted as robust catalytic crucibles, providing an ideal environment for efficient ester hydrolysis. Further investigation into the catalytic mechanism suggested the involvement of specific amino acid residues, rather than general acid or base catalysis. Also, the alteration in conformational distribution caused by phase separation unveils the latent functionality. Our study delineates the understanding of protein phase separation and insights into the diverse catalytic strategies employed by proteins. It opens exciting possibilities for designing functional artificial compartments based on phase-separated biomolecules.
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Affiliation(s)
- Saurabh Rai
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal Bhopal Bypass Road Bhopal 462066 Madhya Pradesh India
| | - Srikrishna Pramanik
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal Bhopal Bypass Road Bhopal 462066 Madhya Pradesh India
| | - Saptarshi Mukherjee
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal Bhopal Bypass Road Bhopal 462066 Madhya Pradesh India
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12
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Raimondo RFS, Miyashiro SI, Birgel Junior EH. Whey protein dynamics in goat mammary secretions during colostrum and early lactation periods. J DAIRY RES 2024; 91:84-88. [PMID: 38584304 DOI: 10.1017/s002202992400013x] [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] [Indexed: 04/09/2024]
Abstract
The protein composition in goat milk undergoes changes throughout the different lactation periods, displaying distinct characteristics that are influenced by the dynamic nature of protein composition and concentration during the transition from colostrum secretion to mature milk. To evaluate the dynamics of whey proteins of Saanen goats during the colostral phase and the first month of lactation, 110 milk samples from 11 healthy mammary halves of seven Saanen goats were selected through a clinical evaluation. Whey was obtained by rennet coagulation of the mammary secretion. The biuret method determined total protein concentration, and their fractions were identified by 12% dodecyl sulfate-polyacrylamide gel electrophoresis. Maximum concentrations of all protein fractions were observed in the first 12 h of lactation, reducing throughout the study. Modification of the protein predominance was also observed. The transition from colostrum secretion to milk occurred 5 or 7 d postpartum.
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Affiliation(s)
- Raquel F S Raimondo
- RuminAção - Teaching, Research and Extension in Ruminants, Faculty of Veterinary Medicine, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
- Department of Internal Medicine, School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Brazil
| | - Samantha I Miyashiro
- Department of Internal Medicine, School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Brazil
| | - Eduardo H Birgel Junior
- Department of Veterinary Medicine, College of Animal Science and Food Engineering, University of São Paulo, São Paulo, Brazil
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13
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Saadi S, Makhlouf C, Nacer NE, Halima B, Faiza A, Kahina H, Wahiba F, Afaf K, Rabah K, Saoudi Z. Whey proteins as multifunctional food materials: Recent advancements in hydrolysis, separation, and peptidomimetic approaches. Compr Rev Food Sci Food Saf 2024; 23:e13288. [PMID: 38284584 DOI: 10.1111/1541-4337.13288] [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: 07/21/2023] [Revised: 10/23/2023] [Accepted: 12/11/2023] [Indexed: 01/30/2024]
Abstract
Whey protein derived bioactives, including α-lactalbumin, ß-lactoglobulin, bovine serum albumin, lactoferrin, transferrin, and proteose-peptones, have exhibited wide ranges of functional, biological and therapeutic properties varying from anticancer, antihypertensive, and antimicrobial effects. In addition, their functional properties involve gelling, emulsifying, and foaming abilities. For these reasons, this review article is framed to understand the relationship existed in between those compound levels and structures with their main functional, biological, and therapeutic properties exhibited either in vitro or in vivo. The impacts of hydrolysis mechanism and separation techniques in enhancing those properties are likewise discussed. Furthermore, special emphasize is given to multifunctional effects of whey derived bioactives and their future trends in ameliorating further food, pharmaceutical, and nutraceutical products. The underlying mechanism effects of those properties are still remained unclear in terms of activity levels, efficacy, and targeted effectiveness. For these reasons, some important models linking to functional properties, thermal properties and cell circumstances are established. Moreover, the coexistence of radical trapping groups, chelating groups, sulfhydryl groups, inhibitory groups, and peptide bonds seemed to be the key elements in triggering those functions and properties. Practical Application: Whey proteins are the byproducts of cheese processing and usually the exploitation of these food waste products has increasingly getting acceptance in many countries, especially European countries. Whey proteins share comparable nutritive values to milk products, particularly on their richness on important proteins that can serve immune protection, structural, and energetic roles. The nutritive profile of whey proteins shows diverse type of bioactive molecules like α-lactalbumin, ß-lactoglobulin, lactoferrin, transferrin, immunoglobulin, and proteose peptones with wide biological importance to the living system, such as in maintaining immunological, neuronal, and signaling roles. The diversification of proteins of whey products prompted scientists to exploit the real mechanisms behind of their biological and therapeutic effects, especially in declining the risk of cancer, tumor, and further complications like diabetes type 2 and hypertension risk effects. For these reasons, profiling these types of proteins using different proteomic and peptidomic approaches helps in determining their biological and therapeutic targets along with their release into gastrointestinal tract conditions and their bioavailabilities into portal circulation, tissue, and organs. The wide applicability of those protein fractions and their derivative bioactive products showed significant impacts in the field of emulsion and double emulsion stabilization by playing roles as emulsifying, surfactant, stabilizing, and foaming agents. Their amphoteric properties helped them to act as excellent encapsulating agents, particularly as vehicle for delivering important vitamins and bioactive compounds. The presence of ferric elements increased their transportation to several metal-ions in the same time increased their scavenging effects to metal-transition and peroxidation of lipids. Their richness with almost essential and nonessential amino acids makes them as selective microbial starters, in addition their richness in sulfhydryl amino acids allowed them to act a cross-linker in conjugating further biomolecules. For instance, conjugating gold-nanoparticles and fluorescent materials in targeting diseases like cancer and tumors in vivo is considered the cutting-edges strategies for these versatile molecules due to their active diffusion across-cell membrane and the presence of specific transporters to these therapeutic molecules.
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Affiliation(s)
- Sami Saadi
- Institut de la Nutrition, de l'Alimentation et des Technologies Agroalimentaires (INATAA), Université Frères Mentouri Constantine 1, Constantine, Algeria
- Laboratoire de Génie Agro-alimentaire, équipe Génie des Procédés Alimentaires, Biodiversité et Agro environnement, INATAA, Université Frères Mentouri Constantine 1 (UFC1), Constantine, Algeria
| | - Chaalal Makhlouf
- Institut de la Nutrition, de l'Alimentation et des Technologies Agroalimentaires (INATAA), Université Frères Mentouri Constantine 1, Constantine, Algeria
- Laboratory of Biotechnology and Food Quality, Institute of Nutrition, Food and Agro-Food Technologies, University of Constantine 1, Constantine, Algeria
- Laboratory of Applied Biochemistry, Faculty of Nature and Life Science, University of Bejaia, Bejaia, Algeria
| | - Nor Elhouda Nacer
- Department of Biology of Organisms, Faculty of Natural and Life Sciences, University of Batna 2, Batna, Algeria
| | - Boughellout Halima
- Institut de la Nutrition, de l'Alimentation et des Technologies Agroalimentaires (INATAA), Université Frères Mentouri Constantine 1, Constantine, Algeria
- Laboratoire de Génie Agro-alimentaire, équipe Génie des Procédés Alimentaires, Biodiversité et Agro environnement, INATAA, Université Frères Mentouri Constantine 1 (UFC1), Constantine, Algeria
| | - Adoui Faiza
- Institut de la Nutrition, de l'Alimentation et des Technologies Agroalimentaires (INATAA), Université Frères Mentouri Constantine 1, Constantine, Algeria
- Laboratoire de Génie Agro-alimentaire, équipe Génie des Procédés Alimentaires, Biodiversité et Agro environnement, INATAA, Université Frères Mentouri Constantine 1 (UFC1), Constantine, Algeria
| | - Hafid Kahina
- Institut de la Nutrition, de l'Alimentation et des Technologies Agroalimentaires (INATAA), Université Frères Mentouri Constantine 1, Constantine, Algeria
- Equipe MaQuaV, Laboratoire Bioqual INATAA, Université des Frères Mentouri-Constantine 1, Constantine, Algeria
| | - Falek Wahiba
- Institut de la Nutrition, de l'Alimentation et des Technologies Agroalimentaires (INATAA), Université Frères Mentouri Constantine 1, Constantine, Algeria
- Laboratoire de Génie Agro-alimentaire, équipe Génie des Procédés Alimentaires, Biodiversité et Agro environnement, INATAA, Université Frères Mentouri Constantine 1 (UFC1), Constantine, Algeria
| | - Kheroufi Afaf
- Institut de la Nutrition, de l'Alimentation et des Technologies Agroalimentaires (INATAA), Université Frères Mentouri Constantine 1, Constantine, Algeria
- Laboratoire de Génie Agro-alimentaire, équipe Génie des Procédés Alimentaires, Biodiversité et Agro environnement, INATAA, Université Frères Mentouri Constantine 1 (UFC1), Constantine, Algeria
| | - Kezih Rabah
- Institut de la Nutrition, de l'Alimentation et des Technologies Agroalimentaires (INATAA), Université Frères Mentouri Constantine 1, Constantine, Algeria
- Laboratory of Biotechnology and Food Quality, Institute of Nutrition, Food and Agro-Food Technologies, University of Constantine 1, Constantine, Algeria
| | - Zineddine Saoudi
- Institut de la Nutrition, de l'Alimentation et des Technologies Agroalimentaires (INATAA), Université Frères Mentouri Constantine 1, Constantine, Algeria
- Laboratoire de Génie Agro-alimentaire, équipe Génie des Procédés Alimentaires, Biodiversité et Agro environnement, INATAA, Université Frères Mentouri Constantine 1 (UFC1), Constantine, Algeria
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14
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Shao YH, Zou L, Xiong ZH, Su LX, Tu ZC, Liu J. Simulated in vitro gastrointestinal digestion of β-lactoglobulin treated by ultrasound: Detection of peptides profile and the antioxidant activity. Food Res Int 2024; 175:113763. [PMID: 38129056 DOI: 10.1016/j.foodres.2023.113763] [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: 07/11/2023] [Revised: 11/06/2023] [Accepted: 11/22/2023] [Indexed: 12/23/2023]
Abstract
The influence of ultrasonic pretreatment on the release and antioxidant activity of potential antioxidant peptides after in-vitro simulated gastrointestinal digestion of β-lactoglobulin (BLG) were measured by HPLC-MS/MS, chemical and cellular-based assays. The gastrointestinal digest was fractionated into four fractions by Sephadex G-25 gel filtration column, and fractions showed a considerable ABTS·+ scavenging ability. The fraction with the strongest antioxidant activity was produced by ultrasonicated BLG after gastrointestinal digestion, which relies on ultrasonic-promoted proteolysis to produce many small-molecule antioxidant peptides. The best active fraction has better cellular antioxidant activity and protection of H2O2-induced oxidative HepG2 cell model, which significantly increases the activities of antioxidant enzyme, and is concentration-dependent. HPLC-MS/MS analysis showed that there were more potential antioxidant peptides in the best active fraction. This research will provide a basis for the further application of ultrasonic in dairy products, which can promote the release of more potential antioxidant peptides-derived from gastrointestinal digestion.
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Affiliation(s)
- Yan-Hong Shao
- National R&D Center for Freshwater Fish Processing, College of Life Sciences, Jiangxi Normal University, Nanchang, Jiangxi 330022, China
| | - Lin Zou
- National R&D Center for Freshwater Fish Processing, College of Life Sciences, Jiangxi Normal University, Nanchang, Jiangxi 330022, China
| | - Zi-Hao Xiong
- National R&D Center for Freshwater Fish Processing, College of Life Sciences, Jiangxi Normal University, Nanchang, Jiangxi 330022, China
| | - Ling-Xia Su
- National R&D Center for Freshwater Fish Processing, College of Life Sciences, Jiangxi Normal University, Nanchang, Jiangxi 330022, China
| | - Zong-Cai Tu
- National R&D Center for Freshwater Fish Processing, College of Life Sciences, Jiangxi Normal University, Nanchang, Jiangxi 330022, China; State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, Jiangxi 330047, China.
| | - Jun Liu
- National R&D Center for Freshwater Fish Processing, College of Life Sciences, Jiangxi Normal University, Nanchang, Jiangxi 330022, China.
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15
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Chang YB, Kim H, Lee SK, Kim HJ, Jeong AH, Suh HJ, Ahn Y. Characteristics and Absorption Rate of Whey Protein Hydrolysates Prepared Using Flavourzyme after Treatment with Alcalase and Protamex. Molecules 2023; 28:7969. [PMID: 38138458 PMCID: PMC10745520 DOI: 10.3390/molecules28247969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 11/28/2023] [Accepted: 12/05/2023] [Indexed: 12/24/2023] Open
Abstract
The purpose of this study was to evaluate the physicochemical properties of whey protein hydrolysate and determine changes in absorption rate due to enzymatic hydrolysis. The molecular weight distribution analysis of whey protein concentrate (WPC) and low-molecule whey protein hydrolysate (LMWPH) using the Superdex G-75 column revealed that LMWPH is composed of peptides smaller than those in WPC. Fourier-transform infrared spectroscopy indicated differences in peak positions between WPC and LMWPH, suggesting hydrolysis-mediated changes in secondary structures. Moreover, LMWPH exhibited higher thermal stability and faster intestinal permeation than WPC. Additionally, oral LMWPH administration increased serum protein content at 20 min, whereas WPC gradually increased serum protein content after 40 min. Although the total amount of WPC and LMWPH absorption was similar, LMWPH absorption rate was higher. Collectively, LMWPH, a hydrolysate of WPC, has distinct physicochemical properties and enhanced absorptive characteristics. Taken together, LMWPH is composed of low-molecular-weight peptides with low antigenicity and has improved absorption compared to WPC. Therefore, LMWPH can be used as a protein source with high bioavailability in the development of functional materials.
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Affiliation(s)
- Yeok Boo Chang
- Department of Integrated Biomedical and Life Science, Graduate School, Korea University, Seoul 02841, Republic of Korea; (Y.B.C.); (H.K.)
- Transdisciplinary Major in Learning Health Systems, Department of Healthcare Sciences, Graduate School, Korea University, Seoul 02841, Republic of Korea
| | - Hyeongyeong Kim
- Department of Integrated Biomedical and Life Science, Graduate School, Korea University, Seoul 02841, Republic of Korea; (Y.B.C.); (H.K.)
- Transdisciplinary Major in Learning Health Systems, Department of Healthcare Sciences, Graduate School, Korea University, Seoul 02841, Republic of Korea
| | - Se Kyung Lee
- Department of Integrated Biomedical and Life Science, Graduate School, Korea University, Seoul 02841, Republic of Korea; (Y.B.C.); (H.K.)
- Transdisciplinary Major in Learning Health Systems, Department of Healthcare Sciences, Graduate School, Korea University, Seoul 02841, Republic of Korea
| | - Hye-Jin Kim
- R&D Group, Maeil Health Nutrition Co., Ltd., Pyeongtaek 17714, Republic of Korea; (H.-J.K.); (A.-H.J.)
| | - A-Hyun Jeong
- R&D Group, Maeil Health Nutrition Co., Ltd., Pyeongtaek 17714, Republic of Korea; (H.-J.K.); (A.-H.J.)
| | - Hyung Joo Suh
- Department of Integrated Biomedical and Life Science, Graduate School, Korea University, Seoul 02841, Republic of Korea; (Y.B.C.); (H.K.)
- Transdisciplinary Major in Learning Health Systems, Department of Healthcare Sciences, Graduate School, Korea University, Seoul 02841, Republic of Korea
| | - Yejin Ahn
- Department of Integrated Biomedical and Life Science, Graduate School, Korea University, Seoul 02841, Republic of Korea; (Y.B.C.); (H.K.)
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16
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Thissen J, Klassen MD, Constantinidis P, Hacker MC, Breitkreutz J, Teutenberg T, Fischer B. Online Coupling of Size Exclusion Chromatography to Capillary Enhanced Raman Spectroscopy for the Analysis of Proteins and Biopharmaceutical Drug Products. Anal Chem 2023; 95:17868-17877. [PMID: 38050672 DOI: 10.1021/acs.analchem.3c03991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/06/2023]
Abstract
The online coupling of size exclusion chromatography (SEC) to capillary enhanced Raman spectroscopy (CERS) based on a liquid core waveguide (LCW) flow cell was applied for the first time to assess the higher-order structure of different proteins. This setup allows recording of Raman spectra of the monomeric protein within complex mixtures, since SEC enables the separation of the monomeric protein from matrix components such as excipients of a biopharmaceutical product and higher molecular weight species (e.g., aggregates). The acquired Raman spectra were used for structural elucidation of well characterized proteins such as bovine serum albumin, hen egg white lysozyme, and β-lactoglobulin and of the monoclonal antibody rituximab in a medicinal product. Additionally, the CERS detection of the disaccharide sucrose, which is used as a stabilizing excipient, was quantified to achieve a limit of detection (LOD) of 120 μg and a limit of quantification (LOQ) of 363 μg injected on the column.
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Affiliation(s)
- Jana Thissen
- Institut für Umwelt & Energie, Technik & Analytik e.V. (IUTA), Bliersheimer Straße 58-60, 47229 Duisburg, Germany
- Institute of Pharmaceutics and Biopharmaceutics, Faculty of Mathematics and Natural Sciences, Heinrich Heine University Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany
| | - Martin D Klassen
- Institut für Umwelt & Energie, Technik & Analytik e.V. (IUTA), Bliersheimer Straße 58-60, 47229 Duisburg, Germany
| | - Philipp Constantinidis
- Institut für Umwelt & Energie, Technik & Analytik e.V. (IUTA), Bliersheimer Straße 58-60, 47229 Duisburg, Germany
| | - Michael C Hacker
- Institute of Pharmaceutics and Biopharmaceutics, Faculty of Mathematics and Natural Sciences, Heinrich Heine University Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany
| | - Jörg Breitkreutz
- Institute of Pharmaceutics and Biopharmaceutics, Faculty of Mathematics and Natural Sciences, Heinrich Heine University Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany
| | - Thorsten Teutenberg
- Institut für Umwelt & Energie, Technik & Analytik e.V. (IUTA), Bliersheimer Straße 58-60, 47229 Duisburg, Germany
| | - Björn Fischer
- Institute of Pharmaceutics and Biopharmaceutics, Faculty of Mathematics and Natural Sciences, Heinrich Heine University Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany
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17
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Ali AH, Alsalmi M, Alshamsi R, Tarique M, Bamigbade G, Zahid I, Nazir MH, Waseem M, Abu-Jdayil B, Kamal-Eldin A, Huppertz T, Ayyash M. Effect of whey protein isolate addition on set-type camel milk yogurt: Rheological properties and biological activities of the bioaccessible fraction. J Dairy Sci 2023; 106:8221-8238. [PMID: 37641311 DOI: 10.3168/jds.2023-23421] [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: 02/25/2023] [Accepted: 05/18/2023] [Indexed: 08/31/2023]
Abstract
The manufacture of camel milk (CM) yogurt has been associated with several challenges, such as the weak structure and watery texture, thereby decreasing its acceptability. Therefore, this study aimed to investigate the effect of whey protein isolate (WPI) addition on the health-promoting benefits, texture profile, and rheological properties of CM yogurt after 1 and 15 d of storage. Yogurt was prepared from CM supplemented with 0, 3, and 5% of WPI and compared with bovine milk yogurt. The results show that the water holding capacity was affected by WPI addition representing 31.3%, 56.8%, 64.7%, and 45.1% for yogurt from CM containing 0, 3 or 5% WPI, and bovine milk yogurt, respectively, after 15 d. The addition of WPI increased yogurt hardness, adhesiveness, and decreased the resilience. CM yogurt without WPI showed lower apparent viscosity, storage modulus, and loss modulus values compared with other samples. The supplementation of CM with WPI improved the rheological properties of the obtained yogurt. Furthermore, the antioxidant activities of yogurt before and after in vitro digestion varied among yogurt treatments, which significantly increased after digestion except the superoxide anion scavenging and lipid oxidation inhibition. After in vitro digestion at d 1, the superoxide anion scavenging of the 4 yogurt treatments respectively decreased from 83.7%, 83.0%, 79.1%, and 87.4% to 36.7%, 38.3%, 44.6%, and 41.3%. The inhibition of α-amylase and α-glucosidase, angiotensin-converting enzyme inhibition, cholesterol removal, and degree of hydrolysis exhibited different values before and after in vitro digestion.
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Affiliation(s)
- Abdelmoneim H Ali
- Department of Food Science, Faculty of Agriculture, Zagazig University, Zagazig, 44511, Egypt
| | - Maitha Alsalmi
- Department of Food Science, College of Agriculture and Veterinary Medicine, United Arab Emirates University (UAEU), Al Ain 15551, UAE
| | - Rodah Alshamsi
- Department of Food Science, College of Agriculture and Veterinary Medicine, United Arab Emirates University (UAEU), Al Ain 15551, UAE
| | - Mohammed Tarique
- Department of Food Science, College of Agriculture and Veterinary Medicine, United Arab Emirates University (UAEU), Al Ain 15551, UAE
| | - Gafar Bamigbade
- Department of Food Science, College of Agriculture and Veterinary Medicine, United Arab Emirates University (UAEU), Al Ain 15551, UAE
| | - Imtisal Zahid
- Department of Chemical and Petroleum Engineering, College of Engineering, United Arab Emirates University (UAEU), Al Ain 15551, UAE
| | - Muhammad Hamza Nazir
- Department of Chemical and Petroleum Engineering, College of Engineering, United Arab Emirates University (UAEU), Al Ain 15551, UAE
| | - Muhammad Waseem
- Department of Chemical and Petroleum Engineering, College of Engineering, United Arab Emirates University (UAEU), Al Ain 15551, UAE
| | - Basim Abu-Jdayil
- Department of Chemical and Petroleum Engineering, College of Engineering, United Arab Emirates University (UAEU), Al Ain 15551, UAE
| | - Afaf Kamal-Eldin
- Department of Food Science, College of Agriculture and Veterinary Medicine, United Arab Emirates University (UAEU), Al Ain 15551, UAE
| | - Thom Huppertz
- FrieslandCampina, Amersfoort 1551 3800 BN, the Netherlands; Wageningen University & Research, Wageningen 6708 PB, the Netherlands
| | - Mutamed Ayyash
- Department of Food Science, College of Agriculture and Veterinary Medicine, United Arab Emirates University (UAEU), Al Ain 15551, UAE.
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18
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Xu D, Zhou J, Soon WL, Kutzli I, Molière A, Diedrich S, Radiom M, Handschin S, Li B, Li L, Sturla SJ, Ewald CY, Mezzenga R. Food amyloid fibrils are safe nutrition ingredients based on in-vitro and in-vivo assessment. Nat Commun 2023; 14:6806. [PMID: 37884488 PMCID: PMC10603083 DOI: 10.1038/s41467-023-42486-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 10/12/2023] [Indexed: 10/28/2023] Open
Abstract
Food protein amyloid fibrils have superior technological, nutritional, sensorial, and physical properties compared to native monomers, but there is as yet insufficient understanding of their digestive fate and safety for wide consumption. By combining SDS-PAGE, ELISA, fluorescence, AFM, MALDI-MS, CD, microfluidics, and SAXS techniques for the characterization of β-lactoglobulin and lysozyme amyloid fibrils subjected to in-vitro gastrointestinal digestion, here we show that either no noticeable conformational differences exist between amyloid aggregates and their monomer counterparts after the gastrointestinal digestion process (as in β-lactoglobulin), or that amyloid fibrils are digested significantly better than monomers (as in lysozyme). Moreover, in-vitro exposure of human cell lines and in-vivo studies with C. elegans and mouse models, indicate that the digested fibrils present no observable cytotoxicity, physiological abnormalities in health-span, nor accumulation of fibril-induced plaques in brain nor other organs. These extensive in-vitro and in-vivo studies together suggest that the digested food amyloids are at least equally as safe as those obtained from the digestion of corresponding native monomers, pointing to food amyloid fibrils as potential ingredients for human nutrition.
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Affiliation(s)
- Dan Xu
- School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, Engineering Research Center of Starch and Plant Protein Deep Processing, Ministry of Education, South China University of Technology, 381 Wushan Road, Tianhe District, Guangzhou, 510640, China
- Institute of Food, Nutrition and Health (IFNH), Department of Health Sciences and Technology (HEST), ETH Zurich, Zürich, 8092, Switzerland
| | - Jiangtao Zhou
- Institute of Food, Nutrition and Health (IFNH), Department of Health Sciences and Technology (HEST), ETH Zurich, Zürich, 8092, Switzerland.
| | - Wei Long Soon
- Institute of Food, Nutrition and Health (IFNH), Department of Health Sciences and Technology (HEST), ETH Zurich, Zürich, 8092, Switzerland
- Center for Sustainable Materials (SusMat), School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Ines Kutzli
- Institute of Food, Nutrition and Health (IFNH), Department of Health Sciences and Technology (HEST), ETH Zurich, Zürich, 8092, Switzerland
| | - Adrian Molière
- Institute of Translational Medicine, Department of Health Sciences and Technology (HEST), ETH Zurich, Schwerzenbach, Switzerland
| | - Sabine Diedrich
- Institute of Food, Nutrition and Health (IFNH), Department of Health Sciences and Technology (HEST), ETH Zurich, Zürich, 8092, Switzerland
| | - Milad Radiom
- Institute of Food, Nutrition and Health (IFNH), Department of Health Sciences and Technology (HEST), ETH Zurich, Zürich, 8092, Switzerland
- Laboratory of Food Immunology, Institute of Food, Nutrition and Health, ETH Zürich, Zürich, Switzerland
| | - Stephan Handschin
- Scientific Center for Optical and Electron Microscopy (ScopeM), ETH Zurich, Otto-Stern-Weg 3, 8093, Zurich, Switzerland
| | - Bing Li
- School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, Engineering Research Center of Starch and Plant Protein Deep Processing, Ministry of Education, South China University of Technology, 381 Wushan Road, Tianhe District, Guangzhou, 510640, China
| | - Lin Li
- School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, Engineering Research Center of Starch and Plant Protein Deep Processing, Ministry of Education, South China University of Technology, 381 Wushan Road, Tianhe District, Guangzhou, 510640, China
| | - Shana J Sturla
- Institute of Food, Nutrition and Health (IFNH), Department of Health Sciences and Technology (HEST), ETH Zurich, Zürich, 8092, Switzerland
| | - Collin Y Ewald
- Institute of Translational Medicine, Department of Health Sciences and Technology (HEST), ETH Zurich, Schwerzenbach, Switzerland
| | - Raffaele Mezzenga
- Institute of Food, Nutrition and Health (IFNH), Department of Health Sciences and Technology (HEST), ETH Zurich, Zürich, 8092, Switzerland.
- Department of Materials, ETH Zurich, Zürich, 8092, Switzerland.
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19
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Rodzik A, Railean V, Pomastowski P, Buszewski B, Szumski M. Immobilized enzyme microreactors for analysis of tryptic peptides in β-casein and β-lactoglobulin. Sci Rep 2023; 13:16551. [PMID: 37783762 PMCID: PMC10545664 DOI: 10.1038/s41598-023-43521-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 09/25/2023] [Indexed: 10/04/2023] Open
Abstract
In this study, our primary objective was to develop an effective analytical method for studying trypsin-digested peptides of two proteins commonly found in cow's milk: β-casein (βCN) and β-lactoglobulin (βLG). To achieve this, we employed two distinct approaches: traditional in-gel protein digestion and protein digestion using immobilized enzyme microreactors (μ-IMER). Both methods utilized ZipTip pipette tips filled with C18 reverse phase media for sample concentration. The μ-IMER was fabricated through a multi-step process that included preconditioning the capillary, modifying its surface, synthesizing a monolithic support, and further surface modification. Its performance was evaluated under HPLC chromatography conditions using a small-molecule trypsin substrate (BAEE). Hydrolysates from both digestion methods were analyzed using MALDI-TOF MS. Our findings indicate that the μ-IMER method demonstrated superior sequence coverage for oxidized molecules in βCN (33 ± 1.5%) and βLG (65 ± 3%) compared to classical in-gel digestion (20 ± 2% for βCN; 49 ± 2% for βLG). The use of ZipTips further improved sequence coverage in both classical in-gel digestion (26 ± 1% for βCN; 60 ± 4% for βLG) and μ-IMER (41 ± 3% for βCN; 80 ± 5% for βLG). Additionally, phosphorylations were identified. For βCN, no phosphorylation was detected using classical digestion, but the use of ZipTips showed a value of 27 ± 4%. With μ-IMER and μ-IMER-ZipTip, the values increased to 30 ± 2% and 33 ± 1%, respectively. For βLG, the use of ZipTip enabled the detection of a higher percentage of modified peptides in both classical (79 ± 2%) and μ-IMER (79 ± 4%) digestions. By providing a comprehensive comparison of traditional in-gel digestion and μ-IMER methods, this study offers valuable insights into the advantages and limitations of each approach, particularly in the context of complex biological samples. The findings set a new benchmark in protein digestion and analysis, highlighting the potential of μ-IMER systems for enhanced sequence coverage and post-translational modification detection.
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Affiliation(s)
- Agnieszka Rodzik
- Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University in Toruń, Wileńska 4, 87-100, Toruń, Poland.
- Department of Environmental Chemistry and Bioanalysis, Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Gagarina 7, 87-100, Toruń, Poland.
| | - Viorica Railean
- Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University in Toruń, Wileńska 4, 87-100, Toruń, Poland
- Department of Infectious, Invasive Diseases and Veterinary Administration, Institute of Veterinary Medicine, Nicolaus Copernicus University in Torun, Gagarina 7, 87-100, Toruń, Poland
| | - Paweł Pomastowski
- Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University in Toruń, Wileńska 4, 87-100, Toruń, Poland
| | - Bogusław Buszewski
- Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University in Toruń, Wileńska 4, 87-100, Toruń, Poland
- Department of Environmental Chemistry and Bioanalysis, Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Gagarina 7, 87-100, Toruń, Poland
| | - Michał Szumski
- Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University in Toruń, Wileńska 4, 87-100, Toruń, Poland.
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20
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Zuev YF, Kusova AM, Sitnitsky AE. Protein translational diffusion as a way to detect intermolecular interactions. Biophys Rev 2023; 15:1111-1125. [PMID: 37975004 PMCID: PMC10643801 DOI: 10.1007/s12551-023-01108-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 07/26/2023] [Indexed: 11/19/2023] Open
Abstract
In this work, we analyze the information on the protein intermolecular interactions obtained from macromolecular diffusion. We have shown that the most hopeful results are given by our approach based on analysis of protein translational self-diffusion and collective diffusion obtained by dynamic light scattering and pulsed-field gradient NMR (PFG NMR) spectroscopy with the help of Vink's approach to analyze diffusion motion of particles by frictional formalism of non-equilibrium thermodynamics and the usage of the Derjaguin-Landau-Verwey-Overbeek (DLVO) theory of colloid particles interactions in electrolyte solutions. Early we have shown that integration of Vink's theory with DLVO provides a reliable basis for uniform interpreting of PFG NMR and DLS experiments on concentration dependence of diffusion coefficients. Basic details of theoretical and mathematical procedures and a broad analysis of experimental attestation of proposed conception on proteins of various structural form, size, and shape are presented. In the present review, the main capabilities of our approach obtain the details of intermolecular interactions of proteins with different shapes, internal structures, and mass. The universality of Vink's approach is experimentally shown, which gives the appropriate description of experimental results for proteins of complicated structure and shape.
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Affiliation(s)
- Yuriy F. Zuev
- Kazan Institute of Biochemistry and Biophysics, FRC Kazan Scientific Center of RAS, Lobachevsky St., 2/31, 420111 Kazan, Russia
| | - Aleksandra M. Kusova
- Kazan Institute of Biochemistry and Biophysics, FRC Kazan Scientific Center of RAS, Lobachevsky St., 2/31, 420111 Kazan, Russia
| | - Aleksandr E. Sitnitsky
- Kazan Institute of Biochemistry and Biophysics, FRC Kazan Scientific Center of RAS, Lobachevsky St., 2/31, 420111 Kazan, Russia
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21
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Li C, Chen L, McClements DJ, Peng X, Xu Z, Meng M, Ji H, Qiu C, Long J, Jin Z. Encapsulation of polyphenols in protein-based nanoparticles: Preparation, properties, and applications. Crit Rev Food Sci Nutr 2023:1-15. [PMID: 37486163 DOI: 10.1080/10408398.2023.2237126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/25/2023]
Abstract
Polyphenols have a variety of physiological activities, including antioxidant, antimicrobial, and anti-inflammatory properties. However, their applications are often limited because due to the instability of polyphenols. Encapsulation technologies can be employed to overcome these problems and increase the utilization of polyphenols. In this article, the utilization of protein-based nanoparticles for encapsulating polyphenols is reviewed due to their good biocompatibility, biodegradability, and functional attributes. Initially, the various kinds of animal and plant proteins available for forming protein nanoparticles are discussed, as well as the fabrication methods that can be used to assemble these nanoparticles. The molecular interaction mechanisms between proteins and polyphenols are then summarized. Applications of protein-based nanoparticles for encapsulating polyphenols are then discussed, including as nutrient delivery systems, in food packaging materials, and in the creation of functional foods. Finally, areas where further research is need on the development, characterization, and application of protein-based polyphenol-loaded nanoparticles are highlighted.
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Affiliation(s)
- Cuicui Li
- School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Long Chen
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, South China Agricultural University, Guangzhou, China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, China
| | | | - Xinwen Peng
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, China
| | - Zhenlin Xu
- School of Food Science and Technology, South China Agricultural University, Guangzhou, China
| | - Man Meng
- Licheng Detection & Certification Group Co., Ltd, Zhongshan, China
| | - Hangyan Ji
- School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Chao Qiu
- School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Jie Long
- School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Zhengyu Jin
- School of Food Science and Technology, Jiangnan University, Wuxi, China
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22
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Differentially expressed whey proteins of donkey and bovine colostrum revealed with a label-free proteomics approach. FOOD SCIENCE AND HUMAN WELLNESS 2023. [DOI: 10.1016/j.fshw.2022.10.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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23
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Mckerchar HJ, Lento C, Bennie RZ, Crowther JM, Dolamore F, Dyer JM, Clerens S, Mercadante D, Wilson DJ, Dobson RCJ. The protein dynamics of bovine and caprine β-lactoglobulin differ as a function of pH. Food Chem 2023; 408:135229. [PMID: 36563618 DOI: 10.1016/j.foodchem.2022.135229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Revised: 11/28/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022]
Abstract
The properties of milk proteins differ between mammalian species. β-Lactoglobulin (βlg) proteins from caprine and bovine milk are sequentially and structurally highly similar, yet their physicochemical properties differ, particularly in response to pH. To resolve this conundrum, we compared the dynamics of both the monomeric and dimeric states for each homologue at pH 6.9 and 7.5 using hydrogen/deuterium exchange experiments. At pH 7.5, the rate of exchange is similar across both homologues, but at pH 6.9 the dimeric states of the bovine βlg B variant homologue have significantly more conformational flexibility compared with caprine βlg. Molecular dynamics simulations provide a mechanistic rationale for the experimental observations, revealing that variant-specific substitutions encode different conformational ensembles with different dynamic properties consistent with the hydrogen/deuterium exchange experiments. Understanding the dynamic differences across βlg homologues is essential to understand the different responses of these milks to processing, human digestion, and differences in immunogenicity.
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Affiliation(s)
- Hannah J Mckerchar
- Biomolecular Interaction Centre, School of Biological Sciences, University of Canterbury, Christchurch 8140, New Zealand; Riddet Institute, based at Massey University, Palmerston North 4442, New Zealand; Protein and Metabolites Team, AgResearch Lincoln Research Centre, Lincoln 7608, New Zealand
| | - Cristina Lento
- Department of Chemistry, York University, Toronto, Ontario M3J 1P3, Canada
| | - Rachel Z Bennie
- Biomolecular Interaction Centre, School of Biological Sciences, University of Canterbury, Christchurch 8140, New Zealand
| | - Jennifer M Crowther
- Biomolecular Interaction Centre, School of Biological Sciences, University of Canterbury, Christchurch 8140, New Zealand
| | - Fabian Dolamore
- Biomolecular Interaction Centre, School of Biological Sciences, University of Canterbury, Christchurch 8140, New Zealand
| | - Jolon M Dyer
- Biomolecular Interaction Centre, School of Biological Sciences, University of Canterbury, Christchurch 8140, New Zealand; The New Zealand Institute for Plant and Food Research, Lincoln Research Centre, Lincoln 7608, New Zealand; Department of Wine, Food and Molecular Biosciences, Lincoln University, Lincoln 7647, New Zealand
| | - Stefan Clerens
- Biomolecular Interaction Centre, School of Biological Sciences, University of Canterbury, Christchurch 8140, New Zealand; Riddet Institute, based at Massey University, Palmerston North 4442, New Zealand; Protein and Metabolites Team, AgResearch Lincoln Research Centre, Lincoln 7608, New Zealand
| | - Davide Mercadante
- School of Chemical Sciences, The University of Auckland, Auckland 1010, New Zealand
| | - Derek J Wilson
- Department of Chemistry, York University, Toronto, Ontario M3J 1P3, Canada; Centre for Research in Mass Spectrometry, Toronto, Ontario M3J 1P3, Canada
| | - Renwick C J Dobson
- Biomolecular Interaction Centre, School of Biological Sciences, University of Canterbury, Christchurch 8140, New Zealand; Riddet Institute, based at Massey University, Palmerston North 4442, New Zealand; Department of Biochemistry and Molecular Biology, Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Victoria 3010, Australia.
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24
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Venturi S, Rossi B, Tortora M, Torre R, Lapini A, Foggi P, Paolantoni M, Catalini S. Amyloidogenic and non-amyloidogenic molten globule conformation of β-lactoglobulin in self-crowded regime. Int J Biol Macromol 2023; 242:124621. [PMID: 37141974 DOI: 10.1016/j.ijbiomac.2023.124621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 04/16/2023] [Accepted: 04/23/2023] [Indexed: 05/06/2023]
Abstract
Molecular insights on the β-lactoglobulin thermal unfolding and aggregation are derived from FTIR and UV Resonance Raman (UVRR) investigations. We propose an in situ and in real-time approach that thanks to the identification of specific spectroscopic markers can distinguish the two different unfolding pathways pursued by β-lactoglobulin during the conformational transition from the folded to the molten globule state, as triggered by the pH conditions. For both the investigated pH values (1.4 and 7.5) the greatest conformational variation of β-lactoglobulin occurs at 80 °C and a high degree of structural reversibility after cooling is observed. In acidic condition β-lactoglobulin exposes to the solvent its hydrophobic moieties in a much higher extent than in neutral solution, resulting on a highly open conformation. Moving from the diluted to the self-crowded regime, the solution pH and consequently the different molten globule conformation select the amyloid or non-amyloid aggregation pathway. At acidic condition the amyloid aggregates form during the heating cycle leading to the formation of transparent hydrogel. On the contrary, in neutral condition the amyloid aggregates never form. Information on the secondary structure conformational change of β-lactoglobulin and the formation of amyloid aggregates are obtained by FTIR spectroscopy and are related to the information of the structural changes localized around the aromatic amino acid sites by UVRR technique. Our results highlight a strong involvement of the chain portions where tryptophan is located on the formation of amyloid aggregates.
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Affiliation(s)
- Sara Venturi
- European Laboratory for Non-Linear Spectroscopy, Università di Firenze, Via Nello Carrara 1, 50019 Sesto Fiorentino, Italy
| | - Barbara Rossi
- Elettra-Sincrotrone Trieste, S.S. 114 km 163.5, Basovizza, 34149 Trieste, Italy
| | - Mariagrazia Tortora
- Elettra-Sincrotrone Trieste, S.S. 114 km 163.5, Basovizza, 34149 Trieste, Italy; AREA SCIENCE PARK, Padriciano, 99, 34149 Trieste, Italy
| | - Renato Torre
- European Laboratory for Non-Linear Spectroscopy, Università di Firenze, Via Nello Carrara 1, 50019 Sesto Fiorentino, Italy; Dipartimento di Fisica ed Astronomia, Università di Firenze, Via G. Sansone, 1, 50019 Sesto Fiorentino, Italy
| | - Andrea Lapini
- European Laboratory for Non-Linear Spectroscopy, Università di Firenze, Via Nello Carrara 1, 50019 Sesto Fiorentino, Italy; Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università degli Studi di Parma, Parco Area delle Scienze, 17/A, 43124 Parma, PR, Italy
| | - Paolo Foggi
- European Laboratory for Non-Linear Spectroscopy, Università di Firenze, Via Nello Carrara 1, 50019 Sesto Fiorentino, Italy; Dipartimento di Chimica, Biologia e Biotecnologie, Università di Perugia, Via Elce di sotto 8, 06123 Perugia, Italy; CNR-INO, Consiglio Nazionale Delle Ricerche - Istituto Nazionale di Ottica, Largo Fermi 6, 50125 Florence, Italy
| | - Marco Paolantoni
- Dipartimento di Chimica, Biologia e Biotecnologie, Università di Perugia, Via Elce di sotto 8, 06123 Perugia, Italy.
| | - Sara Catalini
- European Laboratory for Non-Linear Spectroscopy, Università di Firenze, Via Nello Carrara 1, 50019 Sesto Fiorentino, Italy; CNR-INO, Consiglio Nazionale Delle Ricerche - Istituto Nazionale di Ottica, Largo Fermi 6, 50125 Florence, Italy; Dipartimento di Fisica e Geologia, Università di Perugia, 06123, Via Pascoli, Perugia, Italy.
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25
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Racz CP, Racz LZ, Floare CG, Tomoaia G, Horovitz O, Riga S, Kacso I, Borodi G, Sarkozi M, Mocanu A, Roman C, Tomoaia-Cotisel M. Curcumin and whey protein concentrate binding: Thermodynamic and structural approach. Food Hydrocoll 2023. [DOI: 10.1016/j.foodhyd.2023.108547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
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26
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Cosenza G, Martin P, Garro G, Gallo D, Auzino B, Ciampolini R, Pauciullo A. A novel allelic donkey β-lactogobulin I protein isoform generated by a non-AUG translation initiation codon is associated with a nonsynonymous SNP. J Dairy Sci 2023; 106:4158-4170. [PMID: 37080792 DOI: 10.3168/jds.2022-22598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 12/17/2022] [Indexed: 04/22/2023]
Abstract
β-Lactoglobulin I (β-LG I) is one of the most important whey proteins in donkey milk. However, to our knowledge, there has been no study focusing on the full nucleotide sequences of this gene (BLG I). Current investigation of donkey BLG I gene is very limited with only 2 variants (A and B) characterized so far at the protein level. Recently, a new β-LG I variant, with a significantly higher mass (+1,915 Da) than known variants has been detected. In this study, we report the whole nucleotide sequence of the BLG I gene from 2 donkeys, whose milk samples are characterized by the β-LG I SDS-PAGE band with a normal electrophoretic mobility (18,514.25 Da, β-LG I B1 form) the first, and by the presence of a unique β-LG I band with a higher electrophoretic mobility (20,428.5 Da, β-LG I D form) the latter. A high genetic variability was found all over the 2 sequenced BLG I alleles. In particular, 16 polymorphic sites were found in introns, one in the 5' flanking region, 3 SNPs in the 5' untranslated region and one SNP in the coding region (g.458G > A) located at the 40th nucleotide of exon 2 and responsible for the AA substitutions p.Asp28 > Asn in the mature protein. Two SNPs (g.920-922CAC > TGT and g.1871G/A) were genotyped in 93 donkeys of 2 Italian breeds (60 Ragusana and 33 Amiatina, respectively) and the overall frequencies of g.920-922CAC and g.1871A were 0.3065 and 0.043, respectively. Only the rare allele g.1871A was observed to be associated with the slower migrating β-LG I. Considering this genetic diversity and those found in the database, it was possible to deduce at least 5 different alleles (BLG I A, B, B1, C, D) responsible for 4 potential β-LG I translations. Among these alleles, B1 and D are those characterized in the present research, with the D allele of real novel identification. Haplotype data analysis suggests an evolutionary pathway of donkey BLG I gene and a possible phylogenetic map is proposed. Analyses of mRNA secondary structure showed relevant changes in the structures, as consequence of the g.1871G > A polymorphism, that might be responsible for the recognition of an alternative initiation site providing an additional signal peptide. The extension of 19 AA sequence to the mature protein, corresponding to the canonical signal peptide with an additional alanine residue, is sufficient to provide the observed molecular weight of the slower migrating β-LG I encoded by the BLG I D allele.
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Affiliation(s)
- G Cosenza
- Department of Agricultural Sciences, University of Naples "Federico II," 80055 Portici (Na), Italy.
| | - P Martin
- Université Paris-Saclay, INRAE, MICALIS Institute, PAPPSO, 78350 Jouy-en-Josas, France
| | - G Garro
- Department of Agricultural Sciences, University of Naples "Federico II," 80055 Portici (Na), Italy
| | - D Gallo
- Department of Agricultural Sciences, University of Naples "Federico II," 80055 Portici (Na), Italy
| | - B Auzino
- Department of Veterinary Science, University of Pisa, 56100, Italy
| | - R Ciampolini
- Department of Veterinary Science, University of Pisa, 56100, Italy.
| | - A Pauciullo
- Department of Agriculture, Forest and Food Sciences, University of Torino, 10095 Grugliasco (TO), Italy
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27
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Prikhodko D, Krasnoshtanova A. Using casein and gluten protein fractions to obtain functional ingredients. FOODS AND RAW MATERIALS 2023. [DOI: 10.21603/2308-4057-2023-2-569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023] Open
Abstract
Today, the food industry widely uses both animal and plant proteins. Animal proteins have a balanced amino acid composition, while plant proteins have more pronounced functional properties. However, both types of proteins can act as allergens, which limits their practical application. Therefore, we aimed to select optimal conditions for obtaining hypoallergenic mixtures based on casein hydrolysates and gluten proteins, which have good functional properties and a balanced amino acid composition.
We used wheat flour (Makfa, Russia) with 12.6% of crude protein and 69.4% of starch, as well as rennet casein (Atletic Food, Russia) with 90% of protein. The methods included the Lowry method, the Anson method, Laemmli electrophoresis, ion-exchange chromatography, and the enzyme-linked immunosorbent assay.
Protex 6L was an optimal enzyme preparation for the hydrolysis of gliadin, while chymotrypsin was optimal for the hydrolysis of glutenin and casein. The optimal amount for all the enzymes was 40 units/g of substrate. We analyzed the effect of casein, glutenin, and gliadin enzymolysis time on the functional properties of the hydrolysates and found that the latter had relatively low water- and fat-holding capacities. The highest foaming capacity was observed in gliadin hydrolysates, while the highest emulsifying capacity was registered in casein and glutenin hydrolysates. Further, protein enzymolysis significantly decreased allergenicity, so the hydrolysates can be used to obtain functional additives for hypoallergenic products. Finally, the mixtures of casein hydrolysate and gliadin or glutenin hydrolysates had a balanced amino acid composition and a high amino acid score. Also, they retained high emulsifying and foaming capacities.
The study proved the need for mixtures based on wheat protein and casein hydrolysates, which have good functional properties and hypoallergenicity.
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Affiliation(s)
- Denis Prikhodko
- Dmitry Mendeleev University of Chemical Technology of Russia
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28
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Abstract
For each kilogram of food protein wasted, between 15 and 750 kg of CO2 end up in the atmosphere. With this alarming carbon footprint, food protein waste not only contributes to climate change but also significantly impacts other environmental boundaries, such as nitrogen and phosphorus cycles, global freshwater use, change in land composition, chemical pollution, and biodiversity loss. This contrasts sharply with both the high nutritional value of proteins, as well as their unique chemical and physical versatility, which enable their use in new materials and innovative technologies. In this review, we discuss how food protein waste can be efficiently valorized not only by reintroduction into the food chain supply but also as a template for the development of sustainable technologies by allowing it to exit the food-value chain, thus alleviating some of the most urgent global challenges. We showcase three technologies of immediate significance and environmental impact: biodegradable plastics, water purification, and renewable energy. We discuss, by carefully reviewing the current state of the art, how proteins extracted from food waste can be valorized into key players to facilitate these technologies. We furthermore support analysis of the extant literature by original life cycle assessment (LCA) examples run ad hoc on both plant and animal waste proteins in the context of the technologies considered, and against realistic benchmarks, to quantitatively demonstrate their efficacy and potential. We finally conclude the review with an outlook on how such a comprehensive management of food protein waste is anticipated to transform its carbon footprint from positive to negative and, more generally, have a favorable impact on several other important planetary boundaries.
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Affiliation(s)
- Mohammad Peydayesh
- ETH
Zurich, Department of Health
Sciences and Technology, 8092 Zurich, Switzerland
| | - Massimo Bagnani
- ETH
Zurich, Department of Health
Sciences and Technology, 8092 Zurich, Switzerland
| | - Wei Long Soon
- ETH
Zurich, Department of Health
Sciences and Technology, 8092 Zurich, Switzerland
- Center
for Sustainable Materials (SusMat), School of Materials Science and
Engineering, Nanyang Technological University, 639798 Singapore
| | - Raffaele Mezzenga
- ETH
Zurich, Department of Health
Sciences and Technology, 8092 Zurich, Switzerland
- Department
of Materials, ETH Zurich, 8093 Zurich, Switzerland
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29
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Cavalcante KN, Feitor J, Morais ST, Nassu RT, Ahrné L, Cardoso DR. Impact of UV-C pretreatment on β-lactoglobulin hydrolysis by trypsin: production and bioavailability of bioactive peptides. Int Dairy J 2023. [DOI: 10.1016/j.idairyj.2023.105650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
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30
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Aro N, Ercili-Cura D, Andberg M, Silventoinen P, Lille M, Hosia W, Nordlund E, Landowski CP. Production of bovine beta-lactoglobulin and hen egg ovalbumin by Trichoderma reesei using precision fermentation technology and testing of their techno-functional properties. Food Res Int 2023; 163:112131. [PMID: 36596092 DOI: 10.1016/j.foodres.2022.112131] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 10/17/2022] [Accepted: 11/13/2022] [Indexed: 11/18/2022]
Abstract
The food protein ingredient market is dominated by dairy and egg proteins. Both milk whey and egg proteins are challenging proteins to replace, e.g. with plant proteins, due to the unique structural features of the animal proteins that render them highly functional. Thus, to provide a non-animal source of these important proteins the fungal host Trichoderma reesei was utilized for the biotechnical production of recombinant hen ovalbumin (TrOVA) and bovine beta lactoglobulin (TrBLG). These food proteins were investigated using two different promoter systems to test the concept of effectively expressing them in a fungal host. Both proteins were successfully produced in 24 well plate and bioreactor scale. The production level of TrBLG and TrOVA were 1 g/L and 2 g/L, respectively. Both proteins were further purified and characterized, and their functional properties were tested. TrBLG and TrOVA secondary structures determined by circular dichroism corresponded to the proteins of bovine and hen. The T. reesei produced proteins were found to be N-glycosylated, mostly with Man 5. TrBLG had emulsification properties matching to corresponding bovine protein. TrOVA showed excellent foaming characteristics and heat-induced gelation, although the strength of the gel was somewhat lower than with hen ovalbumin, possibly due to the partial degradation of TrOVA or presence of other host proteins. Biotechnical production of whey and egg proteins using precision fermentation technology offers an innovative way to increase the sustainability of the conventional food industry, without further reliance on animal farming. Industrial relevance: The food protein ingredient market is dominated by dairy (largely whey proteins) and egg proteins. Whey proteins are valuable and versatile food ingredients due to their functional and nutritional quality. They are largely used in meat and milk products, low fat products, bakery, confectionary, infant formulas and sports nutrition. Similarly, egg white protein ovalbumin is a highly functional protein ingredient that facilitates structure formation and high nutritional quality in most food products. Together they comprise 40-70% of the revenue in the animal protein ingredients market. Both whey and egg proteins are extremely challenging proteins to replace, e.g., by plant proteins due to their unique structural features that render them with high functionality. Biotechnical production of whey and egg proteins using precision fermentation technology offers an innovative way to increase the sustainability of the conventional food industry, without further reliance on animal farming.
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Affiliation(s)
- Nina Aro
- VTT Technical Research Centre of Finland Ltd, P.O. Box 1000, FI-02044 VTT, Espoo, Finland.
| | - Dilek Ercili-Cura
- VTT Technical Research Centre of Finland Ltd, P.O. Box 1000, FI-02044 VTT, Espoo, Finland
| | - Martina Andberg
- VTT Technical Research Centre of Finland Ltd, P.O. Box 1000, FI-02044 VTT, Espoo, Finland
| | - Pia Silventoinen
- VTT Technical Research Centre of Finland Ltd, P.O. Box 1000, FI-02044 VTT, Espoo, Finland
| | - Martina Lille
- VTT Technical Research Centre of Finland Ltd, P.O. Box 1000, FI-02044 VTT, Espoo, Finland
| | - Waltteri Hosia
- VTT Technical Research Centre of Finland Ltd, P.O. Box 1000, FI-02044 VTT, Espoo, Finland
| | - Emilia Nordlund
- VTT Technical Research Centre of Finland Ltd, P.O. Box 1000, FI-02044 VTT, Espoo, Finland
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31
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Elsebay MT, Eissa NG, Balata GF, Kamal MA, Elnahas HM. Nanosuspension: A Formulation Technology for Tackling the Poor Aqueous Solubility and Bioavailability of Poorly Soluble Drugs. Curr Pharm Des 2023; 29:2297-2312. [PMID: 37694786 DOI: 10.2174/1381612829666230911105922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 07/03/2023] [Accepted: 07/20/2023] [Indexed: 09/12/2023]
Abstract
The poor water solubility of numerous novel drug candidates presents significant challenges, particularly in terms of oral administration. This limitation can result in various undesirable clinical implications, such as inter-patient variability, poor bioavailability, difficulties in achieving a safe therapeutic index, increased costs, and potential risks of toxicity or inefficacy. Biopharmaceutics Classification System (BCS) class II drugs face particular hurdles due to their limited solubility in the aqueous media of the gastrointestinal tract. In such cases, parenteral administration is often employed as an alternative strategy. To address these challenges, nanosuspension techniques offer a promising solution for enhancing drug solubility and overcoming oral delivery obstacles. This technique has the potential to bridge the gap between drug discovery and preclinical use by resolving problematic solubility. This literature review has delved into contemporary nanosuspension preparation technologies and the incorporation of stabilizing ingredients within the formulation. Furthermore, the manuscript explores nanosuspension strategies for both oral and parenteral/other delivery routes, and separate discussions have been presented to establish a suitable flow that addresses the challenges and strategies relevant to each administration method.
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Affiliation(s)
- Mohamed T Elsebay
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Galala University, Suez, Egypt
- Department of Pharmaceutics, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt
| | - Noura G Eissa
- Department of Pharmaceutics, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt
- School of Biotechnology and Science Academy, Badr University in Cairo, Badr City, Cairo, 11829, Egypt
| | - Gehan F Balata
- Department of Pharmaceutics, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt
- Department of Pharmacy Practice, Faculty of Pharmacy, Heliopolis University, Cairo, Egypt
| | - Mohammad Amjad Kamal
- Institutes for Systems Genetics, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
- King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, Birulia, Bangladesh
- Enzymoics, 7 Peterlee Place, Hebersham, NSW 2770, Australia
- Novel Global Community Educational Foundation, Hebersham, NSW 2770, Australia
| | - Hanan M Elnahas
- Department of Pharmaceutics, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt
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32
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Yamashita MS, Melo EO. Animal Transgenesis and Cloning: Combined Development and Future Perspectives. Methods Mol Biol 2023; 2647:121-149. [PMID: 37041332 DOI: 10.1007/978-1-0716-3064-8_6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/13/2023]
Abstract
The revolution in animal transgenesis began in 1981 and continues to become more efficient, cheaper, and faster to perform. New genome editing technologies, especially CRISPR-Cas9, are leading to a new era of genetically modified or edited organisms. Some researchers advocate this new era as the time of synthetic biology or re-engineering. Nonetheless, we are witnessing advances in high-throughput sequencing, artificial DNA synthesis, and design of artificial genomes at a fast pace. These advances in symbiosis with animal cloning by somatic cell nuclear transfer (SCNT) allow the development of improved livestock, animal models of human disease, and heterologous production of bioproducts for medical applications. In the context of genetic engineering, SCNT remains a useful technology to generate animals from genetically modified cells. This chapter addresses these fast-developing technologies driving this biotechnological revolution and their association with animal cloning technology.
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Affiliation(s)
- Melissa S Yamashita
- Embrapa Genetic Resources and Biotechnology, Brasília, Distrito Federal, Brazil
- Graduation Program in Animal Biology, University of Brasília, Brasília, Distrito Federal, Brazil
| | - Eduardo O Melo
- Embrapa Genetic Resources and Biotechnology, Brasília, Distrito Federal, Brazil.
- Graduation Program in Biotechnology, University of Tocantins, Gurupi, Tocantins, Brazil.
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Hu Y, Wang Y, Nie L, Lin J, Wu S, Li S, Wu J, Ji X, Lv H, Muyldermans S, Wang S. Exploration of Specific Nanobodies As Immunological Reagents to Detect Milk Allergen of β-Lactoglobulin without Interference of Hydrolytic Peptides. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:15271-15282. [PMID: 36412552 DOI: 10.1021/acs.jafc.2c06175] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Milk proteins are widely used for food supplementation, despite the potential risk of food allergy, especially against β-lactoglobulin (BLG), which makes BLG surveillance critical. Possible interaction of detecting antibodies with BLG-derived peptides will result in unprecise inspection. Thus, in this study, it was proposed to generate nanobodies (Nbs) and validate the immunological detection of intact BLG rather than hydrolytic peptides. Nbs were successfully retrieved and characterized with high stability and target specificity. A competitive enzyme-linked immunosorbent assay (cELISA) was developed with a linear range from 39 to 10,000 ng/mL and a detection limit (LOD) of 4.55 ng/mL, with a recovery of 86.30%-95.09% revealed by analysis of spiked samples. Meanwhile, a sandwich ELISA (sELISA) was established with Nb82 and BLG polyclonal antibody (pAb-BLG) providing a linear range from 29.7 to 1250 ng/mL and an LOD of 13.82 ng/mL with a recovery of 87.82%-103.97%. The interaction of selected Nbs with BLG-derived peptides was investigated by Nb structure modeling and BLG docking. No binding on hydrolytic peptides was revealed, confirming the precision of Nb-mediated immunoassays. In summary, this study successfully identified BLG-specific Nbs for immunoassay development and guaranteed the monitoring of intact BLG without interference of hydrolytic peptides, providing experimental evidence that our Nbs recognize intact food allergen.
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Affiliation(s)
- Yaozhong Hu
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, China
| | - Yi Wang
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, China
| | - Linqing Nie
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, China
| | - Jing Lin
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, China
| | - Sihao Wu
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, China
| | - Shijie Li
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, China
| | - Jing Wu
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, China
| | - Xuemeng Ji
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, China
| | - Huan Lv
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, China
| | - Serge Muyldermans
- Lab of Cellular and Molecular Immunology, Vrije Universiteit Brussel, 1050 Brussels, Belgium
| | - Shuo Wang
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, China
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Flavor release and stability comparison between nano and conventional emulsion as influenced by saliva. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2022; 59:4530-4541. [PMID: 36193484 PMCID: PMC9525555 DOI: 10.1007/s13197-022-05534-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Revised: 06/06/2022] [Accepted: 06/09/2022] [Indexed: 11/17/2022]
Abstract
Flavour release and emulsion stability depend on volatile organic compounds' environmental conditions, food microstructure, and physicochemical properties. The effect of pH (3.5 vs 7.0) and saliva addition on stability and flavour release from nano and conventional emulsions was investigated using particle size, charge and Lumisizer measurments. Larger particle sizes were observed at lower pressures and in saliva-containing emulsions. At 1700 bar, nano-emulsions (below 150 nm) were created at pH 3.5 and 7.0 including saliva-containing emulsions. As was clear from the creaming velocity measurements, saliva addition decreased the emulsion stability by reducing particle charges and increased viscosity by more than 50%, especially when prepared at pH 3.5 closer to the isoelectric point of the used emulsifier β-lactoglobulin (pH 5.2). (5.2). Flavour release from emulsions was measured at equilibrium using a phase ratio variation to determine partition coefficients and dynamically using an electronic nose. Partition coefficients of the flavour compounds for most conditions were two to four times lower in emulsions prepared at pH 7.0 than at pH 3.5 and in emulsions without saliva. Emulsions prepared with higher pressures showed stronger flavor release rates, while additional salvia dropped the release rate for ethyl acetate at pH 3.5. The physicochemical properties of flavour compounds, saliva addition and pH of emulsions influenced flavour release more than homogenization pressures. The potential in using nano-emulsions in food applications an be attributed higher stability and enhanced flavor release.
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35
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Ionic liquids as protein stabilizers for biological and biomedical applications: A review. Biotechnol Adv 2022; 61:108055. [DOI: 10.1016/j.biotechadv.2022.108055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 10/13/2022] [Accepted: 10/23/2022] [Indexed: 11/22/2022]
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36
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Bagel A, Delignette-Muller ML, Lopez C, Michel V, Sergentet D, Douellou T. Strain- and serotype-dependent affinity of Shiga toxin-producing Escherichia coli for bovine milk fat globules. J Dairy Sci 2022; 105:8688-8704. [PMID: 36175225 DOI: 10.3168/jds.2022-21840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 07/01/2022] [Indexed: 11/19/2022]
Abstract
Shiga toxin-producing Escherichia coli (STEC) are widely detected in raw milk products intended for human consumption. Although STEC are a worldwide public health problem, the pathogenicity of STEC in cheese remains unclear. In fact, bacterial association with compounds in raw milk cheeses could reduce their pathogenicity. A previous study showed the association of 2 STEC strains with raw milk cream in a natural creaming assay. Different concentrations of each strain were required to saturate the cream. In this study, we hypothesized that all STEC strains could be associated with milk fat globules (MFG) in raw milk and that the bacterial load required for saturation of the cream is serotype dependent. We evaluated the affinity of STEC strains belonging to the O157:H7, O26:H11, and O103:H2 serotypes for bovine raw milk cream and analyzed saturation of the cream layer by natural creaming assay. We used 12 STEC strains and 3 strains belonging to another pathotype to assess the effects of serotypes on this phenomenon. We performed sucrose density gradient centrifugation assays with 2 STEC model strains to confirm the results obtained by natural creaming. The localization of STEC within MFG-enriched creams was observed by confocal and electron microscopy. We recovered approximately 10 times more STEC from the cream layer after natural creaming than from raw bovine milk. The concentration of STEC required to saturate the cream layer (the saturation concentration) was estimated for each strain by nonlinear regression, highlighting a strain and serotype effect. Moreover, the concentration of STEC in the cream was milk fat level dependent. However, even in nonsaturating conditions, a high level of STEC was still present in the aqueous phase, after fat separation. Thus, natural creaming should not be used as the sole preventive measure to remove STEC from naturally contaminated raw milk. The results of our study suggest that cream saturation is a complex mechanism, most likely involving specific interactions between STEC and raw MFG.
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Affiliation(s)
- A Bagel
- Bacterial Opportunistic Pathogens and Environment Research Group, Université de Lyon, UMR 5557 Ecologie Microbienne Lyon, National Center of Scientific Research, VetAgro Sup, 69280 Marcy-l'Etoile, France
| | - M-L Delignette-Muller
- Laboratoire de Biométrie et Biologie Evolutive, UMR 5558, Université de Lyon, VetAgro Sup, National Center of Scientific Research, 69622 Villeurbanne, France
| | - C Lopez
- INRAE, UR BIA, F-44316, Nantes, France
| | - V Michel
- Actalia, 74800 La Roche-sur-Foron, France
| | - D Sergentet
- Bacterial Opportunistic Pathogens and Environment Research Group, Université de Lyon, UMR 5557 Ecologie Microbienne Lyon, National Center of Scientific Research, VetAgro Sup, 69280 Marcy-l'Etoile, France; VetAgro Sup-Campus Vétérinaire, Laboratoire d'Etudes des Microorganismes Alimentaires Pathogènes-French National Reference Laboratory for Escherichia coli including Shiga toxin-producing E. coli (NRL-STEC), Université de Lyon, 69280, Marcy-l'Etoile, France.
| | - T Douellou
- Bacterial Opportunistic Pathogens and Environment Research Group, Université de Lyon, UMR 5557 Ecologie Microbienne Lyon, National Center of Scientific Research, VetAgro Sup, 69280 Marcy-l'Etoile, France
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37
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Chakraborty G. Red emitting fluorogenic dye as an efficient turn-on probe for milk allergen. Int J Biol Macromol 2022; 221:1527-1535. [PMID: 36122782 DOI: 10.1016/j.ijbiomac.2022.09.130] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 09/14/2022] [Accepted: 09/14/2022] [Indexed: 11/24/2022]
Abstract
Development of simple, fast and non-destructive technique such as fluorescence based method for the quantification of milk allergens in various dairy products is a highly rewarding task. In this contribution, a red emitting fluorogenic dye, quinaldine red (QR) is reported for the detection and quantification of a milk allergen, beta lactoglobulin (β-LG) in milk and whey matrices, utilizing its high selectivity and sensitivity towards β-LG. Detail spectroscopic investigation reveals that binding of QR to the hydrophobic calyx site of β-LG protein substantially reduces the torsional agility and propensity of TICT state formation of QR, rendering the dye highly fluorescent in nature. This enables estimation of β-LG with LOD 52.1(±0.9) nM in buffer solution and 0.21(±0.01) μM in 5 % bovine milk matrix respectively. Additionally, high selectivity and sensitivity, excellent repeatability, quick response, and emission in the biologically favorable red spectral region make QR based fluorometric quantification of β-LG a highly attractive choice. Finally, the estimated β-LG concentrations in milk and whey matrices from fluorometric titration and densitometry methods are found to match excellently with each other, suggesting potential of QR as an efficient turn-on fluorescent probe for the quantification of β-LG (milk allergen) in various dairy products.
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Affiliation(s)
- Goutam Chakraborty
- Laser and Plasma Technology Division, Bhabha Atomic Research Centre, Mumbai 400085, India.
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38
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de Sousa Rego R, Jangarelli M, Soares MAM, Puerro de Melo AL, Rodrigues MT, de Oliveira HR, Garcia IS. Polymorphism in β-lactoglobulin gene and its association with dairy goats’ production traits. Small Rumin Res 2022. [DOI: 10.1016/j.smallrumres.2022.106834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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39
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Xie S, Qu P, Luo S, Wang C. Potential uses of milk proteins as encapsulation walls for bioactive compounds: A review. J Dairy Sci 2022; 105:7959-7971. [PMID: 36028346 DOI: 10.3168/jds.2021-21127] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Accepted: 05/11/2022] [Indexed: 11/19/2022]
Abstract
Milk proteins have received much awareness due to their bioactivity. However, their encapsulation functions have not attracted enough attention. Milk proteins as encapsulation walls can increase the bioavailability of bioactive compounds. As the benefits of bioactive compounds are critically determined by bioavailability, the effect of interactions between milk proteins and active substances is a critical topic. In the present review, we summarize the effects of milk proteins as encapsulation walls on the bioavailability of active substances with a special focus. The methods and mechanisms of interactions between milk proteins and active substances are also discussed. The evidence collected in the present review suggests that when active substances are encapsulated by milk proteins, the bioavailability of active substances can be significantly affected. This review also provides valuable guidelines for the use of milk protein-based microcarriers.
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Affiliation(s)
- Siyu Xie
- Inner Mongolia YiLi Industrial Group Co. Ltd., Hohhot, China 010110; Inner Mongolia Dairy Technology Research Institute Co. Ltd., Hohhot, China 010110
| | - Peng Qu
- Inner Mongolia YiLi Industrial Group Co. Ltd., Hohhot, China 010110; Inner Mongolia Dairy Technology Research Institute Co. Ltd., Hohhot, China 010110
| | - Shubo Luo
- Inner Mongolia YiLi Industrial Group Co. Ltd., Hohhot, China 010110; Inner Mongolia Dairy Technology Research Institute Co. Ltd., Hohhot, China 010110
| | - Caiyun Wang
- Inner Mongolia YiLi Industrial Group Co. Ltd., Hohhot, China 010110; Inner Mongolia Dairy Technology Research Institute Co. Ltd., Hohhot, China 010110.
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40
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Kusova AM, Sitnitsky AE, Uversky VN, Zuev YF. Effect of Protein–Protein Interactions on Translational Diffusion of Spheroidal Proteins. Int J Mol Sci 2022; 23:ijms23169240. [PMID: 36012504 PMCID: PMC9409276 DOI: 10.3390/ijms23169240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 08/08/2022] [Accepted: 08/14/2022] [Indexed: 11/21/2022] Open
Abstract
One of the commonly accepted approaches to estimate protein–protein interactions (PPI) in aqueous solutions is the analysis of their translational diffusion. The present review article observes a phenomenological approach to analyze PPI effects via concentration dependencies of self- and collective translational diffusion coefficient for several spheroidal proteins derived from the pulsed field gradient NMR (PFG NMR) and dynamic light scattering (DLS), respectively. These proteins are rigid globular α-chymotrypsin (ChTr) and human serum albumin (HSA), and partly disordered α-casein (α-CN) and β-lactoglobulin (β-Lg). The PPI analysis enabled us to reveal the dominance of intermolecular repulsion at low ionic strength of solution (0.003–0.01 M) for all studied proteins. The increase in the ionic strength to 0.1–1.0 M leads to the screening of protein charges, resulting in the decrease of the protein electrostatic potential. The increase of the van der Waals potential for ChTr and α-CN characterizes their propensity towards unstable weak attractive interactions. The decrease of van der Waals interactions for β-Lg is probably associated with the formation of stable oligomers by this protein. The PPI, estimated with the help of interaction potential and idealized spherical molecular geometry, are in good agreement with experimental data.
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Affiliation(s)
- Aleksandra M. Kusova
- Kazan Institute of Biochemistry and Biophysics, FRC Kazan Scientific Center, Russian Academy of Sciences, Lobachevsky Str., 2/31, 420111 Kazan, Russia
| | - Aleksandr E. Sitnitsky
- Kazan Institute of Biochemistry and Biophysics, FRC Kazan Scientific Center, Russian Academy of Sciences, Lobachevsky Str., 2/31, 420111 Kazan, Russia
| | - Vladimir N. Uversky
- Department of Molecular Medicine and Byrd Alzheimer’s Research Institute, Morsani College of Medicine, University of South Florida, 12901 Bruce B. Downs Blvd., MDC07, Tampa, FL 33612, USA
| | - Yuriy F. Zuev
- Kazan Institute of Biochemistry and Biophysics, FRC Kazan Scientific Center, Russian Academy of Sciences, Lobachevsky Str., 2/31, 420111 Kazan, Russia
- Correspondence: ; Tel.: +7-(843)-2319036
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41
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The non-covalent interactions between whey protein and various food functional ingredients. Food Chem 2022; 394:133455. [PMID: 35732088 DOI: 10.1016/j.foodchem.2022.133455] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 06/07/2022] [Accepted: 06/08/2022] [Indexed: 11/20/2022]
Abstract
In daily diet, Whey protein (WP) is often coexisted with various Food functional ingredients (FFI) such as proteins, polyphenols, polysaccharides and vitamins, which inevitably affect or interact with each other. Generally speaking, they may be interact by two different mechanisms: non-covalent and covalent interactions, of which the former is more common. We reviewed the non-covalent interactions between WP and various FFI, explained the effect of each WP-FFI interaction, and provided possible applications of WP-FFI complex in the food industry. The biological activity, physical and chemical stability of FFI, and the structure and functionalities of WP were enhanced through the non-covalent interactions. The development of non-covalent interactions between WP and FFI provides opportunities for the design of new ingredients and biopolymer complex, which can be applied in different fields. Future research will further focus on the influence of external or environmental factors in the food system and processing methods on interactions.
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42
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Parvej H, Begum S, Dalui R, Paul S, Mondal B, Sardar S, Sepay N, Maiti G, Halder UC. Coumarin derivatives inhibit the aggregation of β-lactoglobulin. RSC Adv 2022; 12:17020-17028. [PMID: 35755586 PMCID: PMC9174738 DOI: 10.1039/d2ra01029a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 05/15/2022] [Indexed: 11/21/2022] Open
Abstract
The binding of a small molecule to a protein through non-covalent interactions mainly depends on its size and electronic environment. Such binding can change the stability of the three dimensional protein structure which sometimes may destabilize it to accelerate or to inhibit protein aggregation. Coumarin is a widely used fluorescent dye with several biological applications. Different substituents (electron-donating and electron-withdrawing) at different positions of the coumarin moiety can influence its molecular volume, physical and chemical properties. Here we investigate the effect of such substituents of coumarin on the aggregation of a model protein, beta-lactoglobulin (β-lg) through a multi spectroscopic approach. It was observed that coumarin methyl ester with an 8-hydroxyl group can inhibit the β-lg aggregation. This compound can bind the hydrophobic site of beta-lactoglobulin and stabilize a particular protein conformation through the formation of hydrogen bond and hydrophobic interactions. Thus a properly designed compound can inhibit protein-protein interactions through protein-small molecule interactions. Other coumarinoid compounds also are effective in the prevention of thermal aggregation of β-lg.
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Affiliation(s)
- Hasan Parvej
- Department of Chemistry, Jadavpur University Kolkata 700 032 India
| | - Shahnaz Begum
- Department of Chemistry, Jadavpur University Kolkata 700 032 India
| | - Ramkrishna Dalui
- Department of Chemistry, Jadavpur University Kolkata 700 032 India
| | - Swarnali Paul
- Department of Chemistry, Jadavpur University Kolkata 700 032 India
| | - Barun Mondal
- Department of Chemistry, Jadavpur University Kolkata 700 032 India
| | - Subrata Sardar
- Department of Chemistry, Jadavpur University Kolkata 700 032 India
| | - Nayim Sepay
- Department of Chemistry, Lady Brabourne College Kolkata 700017 India
| | - Gourhari Maiti
- Department of Chemistry, Jadavpur University Kolkata 700 032 India
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43
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Vinod SM, Sangeetha MS, Thamarai Selvan R, Shoba G, Tamizhdurai P, Kumaran R. Molecular docking approach on the molecular interactions involving beta-lactoglobulin (βLG)-4-Dicyanomethylene2,6-Dimethyl-4-Hpyran (DDP) dye in the presence of an antibiotic, norfloxacin. J INDIAN CHEM SOC 2022. [DOI: 10.1016/j.jics.2022.100477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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44
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Experimental and computational studies on the mechanism of the β-lactoglobulin-derived peptide inhibiting the antigenicity of β-lactoglobulin. Food Chem 2022; 393:133333. [PMID: 35661607 DOI: 10.1016/j.foodchem.2022.133333] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 05/11/2022] [Accepted: 05/26/2022] [Indexed: 11/20/2022]
Abstract
In this study, through a combined simulated enzymolysis-molecular docking-molecular simulation-activity determination-action mechanism strategy, we screened a β-LG-derived peptide (VAGTWYSL) to inhibit the antigenicity of β-LG and explored its mechanism of action. Our results indicate that the inhibitory effect of the peptide on the antigenicity of β-LG is affected by different experimental conditions, including pH, reaction time and concentration. Three factors may contribute to the reduced allergenicity of β-LG. First, there must be sufficient forces between the peptide and β-LG, as a result, hydrophobic forces and hydrogen bonds are the main forces to maintain the structural stability of the complex. Second, the binding of the peptide changes the secondary structure of β-LG, especially with an increase in α-helices and a decrease in β-turns. Third, the peptide binds to the hydrophobic region of β-LG, involving the antigenic epitope region Val41-Lys60, which may reduce the antigenicity.
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45
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Mohamed H, Ayyash M, Kamal-Eldin A. Effect of heat treatments on camel milk proteins – A review. Int Dairy J 2022. [DOI: 10.1016/j.idairyj.2022.105404] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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46
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Peydayesh M, Chen X, Vogt J, Donat F, Müller CR, Mezzenga R. Amyloid fibril-UiO-66-NH 2 aerogels for environmental remediation. Chem Commun (Camb) 2022; 58:5104-5107. [PMID: 35388383 DOI: 10.1039/d2cc00695b] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A sustainable hybrid aerogel based on β-lactoglobulin amyloid fibril/UiO-66-NH2 is developed for environmental remediation. The hybrid aerogel's CO2 capture and water purification performances were investigated. The hybrid aerogel can achieve CO2 capture and possesses excellent adsorption capacities for several heavy metals, dyes, and organic solvents.
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Affiliation(s)
- Mohammad Peydayesh
- Department of Health Sciences and Technology, ETH Zurich, Schmelzbergstrasse 9, 8092 Zurich, Switzerland.
| | - Xiulin Chen
- Department of Health Sciences and Technology, ETH Zurich, Schmelzbergstrasse 9, 8092 Zurich, Switzerland.
| | - Julia Vogt
- Department of Health Sciences and Technology, ETH Zurich, Schmelzbergstrasse 9, 8092 Zurich, Switzerland.
| | - Felix Donat
- Department of Mechanical and Process Engineering, ETH Zurich, Leonhardstrasse 21, 8092 Zurich, Switzerland
| | - Christoph R Müller
- Department of Mechanical and Process Engineering, ETH Zurich, Leonhardstrasse 21, 8092 Zurich, Switzerland
| | - Raffaele Mezzenga
- Department of Health Sciences and Technology, ETH Zurich, Schmelzbergstrasse 9, 8092 Zurich, Switzerland. .,Department of Materials, ETH Zurich, Wolfgang-Pauli-Strasse 10, 8093 Zurich, Switzerland
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47
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The extended farm effect: The milk protein β-lactoglobulin in stable dust protects against allergies. Allergol Select 2022; 6:111-117. [PMID: 35392214 PMCID: PMC8982089 DOI: 10.5414/alx02246e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Accepted: 02/08/2022] [Indexed: 12/16/2022] Open
Abstract
Background: The allergy- and asthma-protective farm effect is mediated by numerous factors. Especially dust from cattle stables and raw cow’s milk show beneficial properties, suggesting a bovine protein to be involved. As a major milk protein and member of the lipocalin family, β-lactoglobulin (BLG) binds small, hydrophobic ligands and thereby modulates the immune response. Empty BLG promotes allergy development, whereas BLG in association with ligands shows allergy-preventive as well as allergy-reducing effects in vivo and in vitro. Results: BLG has been identified as a major protein in stable dust (therein bound to zinc) as well as in the air around cattle stables. This association with zinc favors an allergy-protective immune profile. Conclusion: Its immune-modulating, allergy-protective characteristics together with its presence in raw cow’s milk as well as in stable dust and ambient air render BLG an essential contributor to the farm effect.
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48
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Thompson KD, Danielson EP, Peterson KN, Nocevski NO, Boock JT, Berberich JA. The Amphoteric Surfactant N, N-Dimethyldodecylamine N-Oxide Unfolds β-Lactoglobulin above the Critical Micelle Concentration. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:4090-4101. [PMID: 35325533 DOI: 10.1021/acs.langmuir.2c00172] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Understanding the interactions between surfactants and proteins is important for the formulation of consumer products as surfactant binding can alter protein activity and stability. Additionally, the structure of the protein-surfactant complex can influence surface activity, which is important for emulsion and foam development. N,N-Dimethyldodecylamine N-oxide (DDAO) is an amphoteric surfactant that is nonionic at high pH. It is often used as a foam booster in detergent formulations and for the extraction of membrane proteins. In this study, a variety of biophysical characterization methods was used to investigate the impact of DDAO at pH 8 on the structure of the globular protein β-lactoglobulin (βLG). Pyrene fluorescence and surface tension studies show that βLG had minimal impact on the critical micelle concentration (CMC) of DDAO, while fluorescence and circular dichroism spectroscopy found unfolding of βLG at concentrations of DDAO greater than the CMC. Small-angle X-ray scattering results confirm changes in the structure of βLG at DDAO concentrations above the CMC. Taken together, DDAO behaves like nonionic and zwitterionic surfactants below its CMC with limited interaction with βLG, while it induces protein unfolding at concentrations higher than the CMC, resulting in a protein-surfactant complex structure that resembles a protein-decorated micelle.
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Affiliation(s)
- Kayla D Thompson
- Department of Chemical, Paper, and Biomedical Engineering, Miami University, Oxford, Ohio 45056, United States
| | - Evan P Danielson
- Department of Chemical, Paper, and Biomedical Engineering, Miami University, Oxford, Ohio 45056, United States
| | - Kerri N Peterson
- Department of Chemical, Paper, and Biomedical Engineering, Miami University, Oxford, Ohio 45056, United States
| | - Nicholas O Nocevski
- Department of Chemical, Paper, and Biomedical Engineering, Miami University, Oxford, Ohio 45056, United States
| | - Jason T Boock
- Department of Chemical, Paper, and Biomedical Engineering, Miami University, Oxford, Ohio 45056, United States
| | - Jason A Berberich
- Department of Chemical, Paper, and Biomedical Engineering, Miami University, Oxford, Ohio 45056, United States
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49
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Hong SP, Mohd‐Naim NF, Keasberry NA, Ahmed MU. Electrochemical Detection of β‐Lactoglobulin Allergen Using Titanium Dioxide/Carbon Nanochips/Gold Nanocomposite‐based Biosensor. ELECTROANAL 2022. [DOI: 10.1002/elan.202100207] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Shyang Pei Hong
- Biosensors and Nanobiotechnology Laboratory Integrated Science Building Faculty of Science Universiti Brunei Darussalam Jalan Tungku Link Gadong BE 1410 Brunei Darussalam
| | - Noor Faizah Mohd‐Naim
- PAPRSB Institute of Health Sciences Universiti Brunei Darussalam Jalan Tungku Link Gadong BE 1410 Brunei Darussalam
| | - Natasha Ann Keasberry
- Biosensors and Nanobiotechnology Laboratory Integrated Science Building Faculty of Science Universiti Brunei Darussalam Jalan Tungku Link Gadong BE 1410 Brunei Darussalam
| | - Minhaz Uddin Ahmed
- Biosensors and Nanobiotechnology Laboratory Integrated Science Building Faculty of Science Universiti Brunei Darussalam Jalan Tungku Link Gadong BE 1410 Brunei Darussalam
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50
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Monti DM, Loreto D, Iacobucci I, Ferraro G, Pratesi A, D’Elia L, Monti M, Merlino A. Protein-Based Delivery Systems for Anticancer Metallodrugs: Structure and Biological Activity of the Oxaliplatin/β-Lactoglobulin Adduct. Pharmaceuticals (Basel) 2022; 15:ph15040425. [PMID: 35455422 PMCID: PMC9033069 DOI: 10.3390/ph15040425] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 03/21/2022] [Accepted: 03/28/2022] [Indexed: 12/25/2022] Open
Abstract
β-lactoglobulin is the major component of whey. Here, the adduct formed upon the reaction of the protein with oxaliplatin (OXA) has been prepared, structurally characterized by X-ray crystallography and electrospray ionization–mass spectrometry, and evaluated as a cytotoxic agent. The data demonstrate that OXA rapidly binds β-lactoglobulin via coordination with a Met7 side chain upon release of the oxalate ligand. The adduct is significantly more cytotoxic than the free drug and induces apoptosis in cancer cells. Overall, our results suggest that metallodrug/β-lactoglobulin adducts can be used as anticancer agents and that the protein can be used as a metallodrug delivery system.
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Affiliation(s)
- Daria Maria Monti
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario di Monte Sant’Angelo, Via Cintia, 21, 80126 Napoli, Italy; (D.M.M.); (D.L.); (I.I.); (G.F.); (L.D.); (M.M.)
| | - Domenico Loreto
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario di Monte Sant’Angelo, Via Cintia, 21, 80126 Napoli, Italy; (D.M.M.); (D.L.); (I.I.); (G.F.); (L.D.); (M.M.)
| | - Ilaria Iacobucci
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario di Monte Sant’Angelo, Via Cintia, 21, 80126 Napoli, Italy; (D.M.M.); (D.L.); (I.I.); (G.F.); (L.D.); (M.M.)
- CEINGE Advanced Biotechnologies s.c.a.r.l., Via G. Salvatore 486, 80145 Napoli, Italy
| | - Giarita Ferraro
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario di Monte Sant’Angelo, Via Cintia, 21, 80126 Napoli, Italy; (D.M.M.); (D.L.); (I.I.); (G.F.); (L.D.); (M.M.)
| | - Alessandro Pratesi
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via G. Moruzzi 13, 56124 Pisa, Italy;
| | - Luigi D’Elia
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario di Monte Sant’Angelo, Via Cintia, 21, 80126 Napoli, Italy; (D.M.M.); (D.L.); (I.I.); (G.F.); (L.D.); (M.M.)
| | - Maria Monti
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario di Monte Sant’Angelo, Via Cintia, 21, 80126 Napoli, Italy; (D.M.M.); (D.L.); (I.I.); (G.F.); (L.D.); (M.M.)
- CEINGE Advanced Biotechnologies s.c.a.r.l., Via G. Salvatore 486, 80145 Napoli, Italy
| | - Antonello Merlino
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario di Monte Sant’Angelo, Via Cintia, 21, 80126 Napoli, Italy; (D.M.M.); (D.L.); (I.I.); (G.F.); (L.D.); (M.M.)
- Correspondence:
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