1
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Xue H, Zha M, Tang Y, Zhao J, Du X, Wang Y. Research Progress on the Extraction and Purification of Anthocyanins and Their Interactions with Proteins. Molecules 2024; 29:2815. [PMID: 38930881 PMCID: PMC11206947 DOI: 10.3390/molecules29122815] [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: 05/21/2024] [Revised: 06/06/2024] [Accepted: 06/10/2024] [Indexed: 06/28/2024] Open
Abstract
Anthocyanins, as the most critical water-soluble pigments in nature, are widely present in roots, stems, leaves, flowers, fruits, and fruit peels. Many studies have indicated that anthocyanins exhibit various biological activities including antioxidant, anti-inflammatory, anti-tumor, hypoglycemic, vision protection, and anti-aging. Hence, anthocyanins are widely used in food, medicine, and cosmetics. The green and efficient extraction and purification of anthocyanins are an important prerequisite for their further development and utilization. However, the poor stability and low bioavailability of anthocyanins limit their application. Protein, one of the three essential nutrients for the human body, has good biocompatibility and biodegradability. Proteins are commonly used in food processing, but their functional properties need to be improved. Notably, anthocyanins can interact with proteins through covalent and non-covalent means during food processing, which can effectively improve the stability of anthocyanins and enhance their bioavailability. Moreover, the interactions between proteins and anthocyanins can also improve the functional characteristics and enhance the nutritional quality of proteins. Hence, this article systematically reviews the extraction and purification methods for anthocyanins. Moreover, this review also systematically summarizes the effect of the interactions between anthocyanins and proteins on the bioavailability of anthocyanins and their impact on protein properties. Furthermore, we also introduce the application of the interaction between anthocyanins and proteins. The findings can provide a theoretical reference for the application of anthocyanins and proteins in food deep processing.
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Affiliation(s)
| | | | | | | | | | - Yu Wang
- College of Traditional Chinese Medicine, Hebei University, No. 342 Yuhua East Road, Lianchi District, Baoding 071002, China; (H.X.); (M.Z.); (Y.T.); (J.Z.); (X.D.)
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2
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Zhang G, Qi X, He L, Wang X, Zhao Y, Wang Q, Han J, Wang Z, Ding Z, Liu M. Non-covalent complexes of lutein/zeaxanthin and whey protein isolate formed at different pH levels: Binding interactions, storage stabilities, and bioaccessibilities. Curr Res Food Sci 2024; 8:100778. [PMID: 38854501 PMCID: PMC11157214 DOI: 10.1016/j.crfs.2024.100778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 05/05/2024] [Accepted: 05/26/2024] [Indexed: 06/11/2024] Open
Abstract
Lutein (Lut) and zeaxanthin (Zx) are promising healthy food ingredients; however, the low solubilities, stabilities, and bioavailabilities limit their applications in the food and beverage industries. A protein-based complex represents an efficient protective carrier for hydrophobic ligands, and its ligand-binding properties are influenced by the formulation conditions, particularly the pH level. This study explored the effects of various pH values (2.5-9.5) on the characteristics of whey protein isolate (WPI)-Lut/Zx complexes using multiple spectroscopic techniques, including ultraviolet-visible (UV-Vis), fluorescence, and Fourier transform infrared (FTIR) spectroscopies and dynamic light scattering (DLS). UV-Vis and DLS spectra revealed that Lut/Zx were present as H-aggregates in aqueous solutions, whereas WPI occurred as nanoparticles. The produced WPI-Lut/Zx complexes exhibited binding constants of 104-105 M-1, which gradually increased with increasing pH from 2.5 to 9.5. FTIR spectra demonstrated that pH variations and Lut/Zx addition caused detectable changes in the secondary WPI structure. Moreover, the WPI-Lut/Zx complexes effectively improved the physicochemical stabilities and antioxidant activities of Lut/Zx aggregates during long-term storage and achieved bioaccessibilities above 70% in a simulated gastrointestinal digestion process. The comprehensive data obtained in this study offer a basis for formulating strategies that can be potentially used in developing commercially available WPI complex-based xanthophyll-rich foods.
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Affiliation(s)
- Gang Zhang
- Institute of Biopharmaceutical Research, Liaocheng University, Liaocheng, 252059, China
| | - Xin Qi
- Institute of Biopharmaceutical Research, Liaocheng University, Liaocheng, 252059, China
| | - Linlin He
- Institute of Biopharmaceutical Research, Liaocheng University, Liaocheng, 252059, China
| | - Xiao Wang
- Institute of Biopharmaceutical Research, Liaocheng University, Liaocheng, 252059, China
- Liaocheng High-Tech Biotechnology Co., Ltd., Liaocheng, 252059, China
| | - Yanna Zhao
- Institute of Biopharmaceutical Research, Liaocheng University, Liaocheng, 252059, China
| | - Qingpeng Wang
- Institute of Biopharmaceutical Research, Liaocheng University, Liaocheng, 252059, China
| | - Jun Han
- Institute of Biopharmaceutical Research, Liaocheng University, Liaocheng, 252059, China
- Liaocheng High-Tech Biotechnology Co., Ltd., Liaocheng, 252059, China
| | - Zhengping Wang
- Institute of Biopharmaceutical Research, Liaocheng University, Liaocheng, 252059, China
- Shandong Liang-Jian Biotechnology Co., Ltd., Zibo, 255000, China
| | - Zhuang Ding
- Institute of Biopharmaceutical Research, Liaocheng University, Liaocheng, 252059, China
- Shandong Liang-Jian Biotechnology Co., Ltd., Zibo, 255000, China
| | - Min Liu
- Institute of Biopharmaceutical Research, Liaocheng University, Liaocheng, 252059, China
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3
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Xu T, Li X, Wu C, Fan G, Li T, Zhou D, Zhu J, Wu Z, Hua X. Improved encapsulation effect and structural properties of whey protein isolate by dielectric barrier discharge cold plasma. Int J Biol Macromol 2024; 257:128556. [PMID: 38061529 DOI: 10.1016/j.ijbiomac.2023.128556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 11/23/2023] [Accepted: 11/30/2023] [Indexed: 12/22/2023]
Abstract
The whey protein isolate (WPI) was modified by dielectric barrier discharge cold plasma (DBD) in order to improve its encapsulation efficiency of rutin. In this work, the effect of DBD treatment on structure and physicochemical properties of WPI and the interaction between DBD-treated WPI and rutin were investigated. The results showed that the structural change of WPI leaded to the exposure of internal hydrophobic groups, increasing the interaction site with rutin. The encapsulation efficiency of DBD-treated WPI (30 kV, 30 s) on rutin was improved by 12.42 % compared with control group. The results of multispectral analysis showed that static quenching occurred in the process of interaction between DBD-treated and rutin, hydrogen bond and van der Waals force were the main forces between them. Therefore, DBD treatment can be used as a method to improve the encapsulation efficiency of WPI on hydrophobic active substances.
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Affiliation(s)
- Ting Xu
- College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing, Jiangsu 210037, China
| | - Xiaojing Li
- College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing, Jiangsu 210037, China; Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
| | - Caie Wu
- College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing, Jiangsu 210037, China; Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China.
| | - Gongjian Fan
- College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing, Jiangsu 210037, China; Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
| | - Tingting Li
- College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing, Jiangsu 210037, China; Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
| | - Dandan Zhou
- College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing, Jiangsu 210037, China; Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
| | - Jinpeng Zhu
- College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing, Jiangsu 210037, China
| | - Zhihao Wu
- College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing, Jiangsu 210037, China
| | - Xiaowen Hua
- Cixi Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, 315201 Ningbo, China
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4
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Chen J, Ma S, Chen X, Dai X, Zhang L, Yuan Y, Li L, Zhang H, Liu G, Ren G, Duan X, Xie Q, Cao W. Noncovalent Interaction of Lactoferrin with Epicatechin and Epigallocatechin: Focus on Fluorescence Quenching and Antioxidant Properties. ACS OMEGA 2023; 8:41844-41854. [PMID: 37970015 PMCID: PMC10633880 DOI: 10.1021/acsomega.3c06560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 10/09/2023] [Accepted: 10/11/2023] [Indexed: 11/17/2023]
Abstract
Lactoferrin (LF) from bovine milk possesses antioxidant activity, immune regulatory and other biological activities. However, the effects of epicatechin (EC) and epigallocatechin (EGC) interacting with LF on the antioxidant activity of LF have not been investigated. Therefore, this study aimed to explore their interaction mechanism and the antioxidant activity of LF. UV spectra revealed that EGC (100 μM) induced a higher blue shift of LF at the maximum absorption wavelength than that of EC (100 μM). Fluorescence spectra results suggested that LF fluorescence was quenched by EC and EGC in the static type, which changed the polarity of the microenvironment around LF. The quenching constants Ksv (5.91 × 103-9.20 × 103) of EC-LF complexes at different temperatures were all higher than that (1.35 × 103-1.75 × 103) of the EGC-LF complex. EC could bind to LF via hydrophobic interactions while hydrogen bonding and van der Waals forces drove the binding of EGC to LF. Both the EC-LF complex and EGC-LF complex could bind to LF with one site. EGC formed more hydrogen bonds with LF than that of EC. The antioxidant activity of LF was increased by the high addition level of EC and EGC. These findings would provide more references for developing LF-catechin complexes as functional antioxidants.
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Affiliation(s)
- Junliang Chen
- College
of Food and Bioengineering, Henan University
of Science and Technology, Luoyang, Henan 471023, China
| | - Shuhua Ma
- College
of Food and Bioengineering, Henan University
of Science and Technology, Luoyang, Henan 471023, China
| | - Xin Chen
- College
of Food and Bioengineering, Henan University
of Science and Technology, Luoyang, Henan 471023, China
| | - Xin Dai
- College
of Food and Bioengineering, Henan University
of Science and Technology, Luoyang, Henan 471023, China
| | - Li Zhang
- College
of Food and Bioengineering, Henan University
of Science and Technology, Luoyang, Henan 471023, China
| | - Yunxia Yuan
- College
of Food and Bioengineering, Henan University
of Science and Technology, Luoyang, Henan 471023, China
| | - Linlin Li
- College
of Food and Bioengineering, Henan University
of Science and Technology, Luoyang, Henan 471023, China
| | - Hui Zhang
- College
of Food and Bioengineering, Henan University
of Science and Technology, Luoyang, Henan 471023, China
| | - Gangtian Liu
- College
of Food and Bioengineering, Henan University
of Science and Technology, Luoyang, Henan 471023, China
| | - Guangyue Ren
- College
of Food and Bioengineering, Henan University
of Science and Technology, Luoyang, Henan 471023, China
| | - Xu Duan
- College
of Food and Bioengineering, Henan University
of Science and Technology, Luoyang, Henan 471023, China
| | - Qinggang Xie
- Heilongjiang
Feihe Dairy Co., Ltd., Beijing 100015, China
| | - Weiwei Cao
- College
of Food and Bioengineering, Henan University
of Science and Technology, Luoyang, Henan 471023, China
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5
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Zhang L, Yao L, Zhao F, Yu A, Zhou Y, Wen Q, Wang J, Zheng T, Chen P. Protein and Peptide-Based Nanotechnology for Enhancing Stability, Bioactivity, and Delivery of Anthocyanins. Adv Healthc Mater 2023; 12:e2300473. [PMID: 37537383 DOI: 10.1002/adhm.202300473] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 05/18/2023] [Indexed: 08/05/2023]
Abstract
Anthocyanin, a unique natural polyphenol, is abundant in plants and widely utilized in biomedicine, cosmetics, and the food industry due to its excellent antioxidant, anticancer, antiaging, antimicrobial, and anti-inflammatory properties. However, the degradation of anthocyanin in an extreme environment, such as alkali pH, high temperatures, and metal ions, limits its physiochemical stabilities and bioavailabilities. Encapsulation and combining anthocyanin with biomaterials could efficiently stabilize anthocyanin for protection. Promisingly, natural or artificially designed proteins and peptides with favorable stabilities, excellent biocapacity, and wide sources are potential candidates to stabilize anthocyanin. This review focuses on recent progress, strategies, and perspectives on protein and peptide for anthocyanin functionalization and delivery, i.e., formulation technologies, physicochemical stability enhancement, cellular uptake, bioavailabilities, and biological activities development. Interestingly, due to the simplicity and diversity of peptide structure, the interaction mechanisms between peptide and anthocyanin could be illustrated. This work sheds light on the mechanism of protein/peptide-anthocyanin nanoparticle construction and expands on potential applications of anthocyanin in nutrition and biomedicine.
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Affiliation(s)
- Lei Zhang
- Department of Chemical Engineering and Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario, N2L3G1, Canada
| | - Liang Yao
- College of Biotechnology, Sericultural Research Institute, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, 212018, China
| | - Feng Zhao
- Department of Chemical Engineering and Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario, N2L3G1, Canada
| | - Alice Yu
- Schulich School of Medicine and Dentistry, Western University, Ontario, N6A 3K7, Canada
| | - Yueru Zhou
- Department of Chemical Engineering and Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario, N2L3G1, Canada
| | - Qingmei Wen
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou, 510640, China
| | - Jun Wang
- College of Biotechnology, Sericultural Research Institute, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, 212018, China
| | - Tao Zheng
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou, 510640, China
| | - Pu Chen
- Department of Chemical Engineering and Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario, N2L3G1, Canada
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6
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Llopart EE, Verdini RA, Delorenzi NJ, Busti PA. Characterization of polyphenols compounds extracted from stressed apple peel and their interaction with β-lactoglobulin. Heliyon 2023; 9:e20010. [PMID: 37809818 PMCID: PMC10559732 DOI: 10.1016/j.heliyon.2023.e20010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 09/06/2023] [Accepted: 09/08/2023] [Indexed: 10/10/2023] Open
Abstract
This paper proposes to apply a postharvest environmental stress to red apples, Malus domestica, variety Red Delicious in order to increase the polyphenols compounds (PP) content in their peels. The possibility of enhancing extractable PP provides a useful alternative for the use of discarded crops in the food industry. A great increase in PP was observed in response to light damage produced by the environmental stress applied in this work. Flavonols > anthocyanins > flavanols > dihydrochalcones > phenolic acids is the order in PP content. The interaction of the extracted PP from unstressed and stressed apple peels with beta-lactoglobulin (β-LG) was characterized. A PP/β-LG complex which was formed with one single binding site in the protein was determined. The interaction was spontaneous and enthalpy driven. PP extracted from unstressed samples had greater affinity for the protein than PP extracted from stressed samples, possibly due to the polar characteristic of anthocyanins. The results of this last study could provide a better understanding of the interaction between PP and β-LG to incorporate them into functional foods.
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Affiliation(s)
- Emilce E. Llopart
- Área Alimentos y Sociedad, Departamento de Ciencias de los Alimentos y del Medio Ambiente, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, 2000 Rosario, Argentina
- Instituto de Química Rosario (IQUIR, UNR-CONICET), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, 2000 Rosario, Argentina
| | - Roxana A. Verdini
- Instituto de Química Rosario (IQUIR, UNR-CONICET), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, 2000 Rosario, Argentina
- Área Bromatología y Nutrición, Departamento de Ciencias de los Alimentos y del Medio Ambiente, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, 2000 Rosario, Argentina
| | - Néstor J. Delorenzi
- Área Tecnología de los Alimentos, Departamento de Tecnología, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, 2000 Rosario, Argentina
| | - Pablo A. Busti
- Área Tecnología de los Alimentos, Departamento de Tecnología, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, 2000 Rosario, Argentina
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7
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Zhang K, Tian X, Shen R, Wang Y, Zhang Y, Wang W. Inhibition of α-amylase and amyloglucosidase by cellulose nanofibrils with different surface charge and spectroscopic analysis of their interaction mechanism. Food Res Int 2023; 170:113053. [PMID: 37316033 DOI: 10.1016/j.foodres.2023.113053] [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: 01/08/2023] [Revised: 05/23/2023] [Accepted: 05/24/2023] [Indexed: 06/16/2023]
Abstract
We investigated the inhibition effect of carboxymethylated cellulose nanofibrils with four different surface chargeon α-amylase and amyloglucosidase via enzyme activity inhibition assay, fluorescence spectra and secondary structure change analysis. These results revealed that cellulose nanofibril with lowest surface charge displayed the greatest inhibition effects against α-amylase (9.81 mg/mL) and amyloglucosidase (13.16 mg/mL). All cellulose nanofibrils in starch model significantly (p < 0.05) inhibited the starch digestion, where the inhibition effect was negatively correlated with the magnitude of particle surface charge. Cellulose nanofibrils could bind α-amylase or amyloglucosidase to form new complex in the manner of static quenching. The thermodynamic parameters demonstrated that the cellulose nanofibrils-starch hydrolase (α-amylase or amyloglucosidase) complexes were formed spontaneously via hydrophobic effects. Additionally, Fourier transform Infrared spectra exhibited the changes in the fraction of secondary structures of starch hydrolase after the interactions with carboxymethylated cellulose nanofibrils. These data provide a convenient and simple method tailor gastrointestinal digestion of starch by changing cellulose surface charge, to control postprandial serum glucose upsurge.
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Affiliation(s)
- Kai Zhang
- College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, China
| | - Xiaojing Tian
- College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, China.
| | - Ruixi Shen
- College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, China
| | - Yang Wang
- College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, China
| | - Yafei Zhang
- College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, China
| | - Wenhang Wang
- College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, China.
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8
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He W, Jiang Y, Chen K, Chen J, Zeng M, Qin F, Wang Z, He Z. Comparison of different ultrafiltration-recovered soy protein hydrolysate fractions and their effects on the stability of mulberry anthocyanin extract. FOOD BIOSCI 2023. [DOI: 10.1016/j.fbio.2023.102624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
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9
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Cong H, Wu Q, Zhang Z, Kan J. Improvement of functional characteristics of Hypophthalmichthys molitrix protein by modification with chitosan oligosaccharide. Front Nutr 2023; 10:1140191. [PMID: 37305088 PMCID: PMC10250665 DOI: 10.3389/fnut.2023.1140191] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Accepted: 02/20/2023] [Indexed: 06/13/2023] Open
Abstract
In the food processing field, it is very often that fish proteins are denatured affecting the nutritional value of the product which is vital to be solved. By using appropriate sugar donors for glycosylation with protein, improving the stability and emulsification properties of fish proteins can be achieved. This research looks into the impacts of enzymatic chitosan oligosaccharide (CO) at various concentration (0.15%, 0.30%, 0.45%, 0.60%, w/v) upon the molecular makeup and function of silver carp myofibrillar protein (MP) in an attempt to comprehend the impact of electrostatic binding among MP as well as CO on protein conformation. Analysis was done on the impact of various CO concentrations upon MP's secondary structure, conformational changes, and functional characteristics. Twelve sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) assays were implemented to monitor MP; Fourier transform infrared spectroscopy, endogenous fluorescence spectroscopy, and UV absorption spectra were carried out to investigate the influence of CO on MP; Particle size distribution, emulsifying activity index (EAI), solubility, turbidity, sulfhydryl content, carbonyl content, foaming capacity, surface hydrophobicity, emulsifying stability index (ESI), and foam persistence were all investigated. In addition, we used dynamic light scattering, scanning electron microscope, and atomic force microscope to analyze myosin (MO) and 0.60% CO-MO complex. The results demonstrated that CO and MP form complexes through hydrogen bonding and electrostatic interactions. CO modification not only delayed the oxidation of MP but also promoted MP to show better solubility, foaming, and foaming stability. In addition, CO modified myosin particle size decreased, reducing myosin's roughness and making myosin's structure more compact. To sum up, molecular interaction could change functional characteristics, and products with special properties could be developed after modification with chitosan oligosaccharide.
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Affiliation(s)
- Haihua Cong
- School of Food and Drug, Shanghai Zhongqiao University of Vocational Technology, Shanghai, China
| | - Qiming Wu
- Nutrilite Health Institute, Shanghai, China
| | - Zhuoran Zhang
- School of Food and Drug, Shanghai Zhongqiao University of Vocational Technology, Shanghai, China
| | - Juntao Kan
- Nutrilite Health Institute, Shanghai, China
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10
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Geng Q, McClements DJ, Wu Z, Li T, He X, Shuai X, Liu C, Dai T. Investigation of bovine β-lactoglobulin-procyanidin complexes interactions and its utilization in O/W emulsion. Int J Biol Macromol 2023; 240:124457. [PMID: 37068535 DOI: 10.1016/j.ijbiomac.2023.124457] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 03/21/2023] [Accepted: 04/11/2023] [Indexed: 04/19/2023]
Abstract
Procyanidins are bioactive polyphenols that have a strong affinity to proteins. Beta-lactoglobulin (BLG) is widely used as an emulsifier in the food and other industries. This study evaluated the interaction between BLG and A-type procyanidin dimer (PA2) using the spectroscopic, thermodynamic, and molecular simulation. PA2 decreased the transmissivity and quenched the intrinsic fluorescence of BLG, suggesting that the two molecules formed a complex. The binding of PA2 reduced the surface hydrophobicity and altered the conformation of BLG with increasing the random coil regions. Thermodynamic and isothermal titration calorimetry analyses suggested that the main driving force of PA2-BLG interaction was hydrophobic attraction. Molecular docking simulations were used to identify the main interaction sites and forces in the BLG-PA2 complexes, which again indicated that hydrophobic interactions dominated. In addition, the influence of PA2 on the ability of BLG to form and stabilize O/W emulsions was analyzed. Emulsions formulated using BLG-PA2 complexes contained relatively small droplets (D4,3 ≈ 0.7 μm) and high surface potentials (absolute value >50 mV). Compared to BLG alone, BLG-PA2 complexes improved the storage stability of the emulsions. This study provides valuable new insights into the formation, properties, and application of protein-polyphenol complexes as functional ingredients in foods.
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Affiliation(s)
- Qin Geng
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | | | - Zhihua Wu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Ti Li
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Xuemei He
- Guangxi Key Laboratory of Fruits and Vegetables Storage-processing Technology, Nanning, Guangxi 530007, China
| | - Xixiang Shuai
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China.
| | - Chengmei Liu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Taotao Dai
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China; Guangxi Key Laboratory of Fruits and Vegetables Storage-processing Technology, Nanning, Guangxi 530007, China.
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11
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Wu H, Oliveira G, Lila MA. Protein-binding approaches for improving bioaccessibility and bioavailability of anthocyanins. Compr Rev Food Sci Food Saf 2023; 22:333-354. [PMID: 36398759 DOI: 10.1111/1541-4337.13070] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 08/29/2022] [Accepted: 10/12/2022] [Indexed: 11/19/2022]
Abstract
Color is an important characteristic of food. Over the last 15 years, more attention has been paid to natural colorants because of the rising demand for clean-label food products. Anthocyanins, which are a group of phytochemicals responsible for the purple, blue or red hues of many plants, offer a market advantage. In addition, anthocyanin-rich foods are associated with protection against cardiovascular disease, thrombosis, diabetes, cancer, microbial-based disorders, neurological disorders, and vision ailments. However, the real health value of anthocyanins, whether as a natural colorant or a functional ingredient, is dependent on the ultimate bioaccessibility and bioavailability in the human body. Many animal and human clinical studies revealed that, after intake of anthocyanin-rich foods or anthocyanin extracts, only trace amounts (< 1% of ingested content) of anthocyanins or their predicted metabolites were detected in plasma after a standard blood draw, which was indicative of low bioavailability of anthocyanins. Protein binding to anthocyanins is a strategy that has recently been reported to enhance the ultimate bioactivity, bioaccessibility, and bioavailability of anthocyanins as compared to anthocyanins delivered without a protein carrier. Therefore, in this review, we address anthocyanin properties in food processing and digestion, anthocyanin-protein complexes used in food matrices, and changes in the bioaccessibility and bioavailability of anthocyanins when bound into anthocyanin-protein complexes in foods. Finally, we summarize the challenges and prospects of this delivery system for anthocyanin pigments.
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Affiliation(s)
- Haizhou Wu
- Department of Biology and Biological Engineering-Food and Nutrition Science, Chalmers University of Technology, Gothenburg, Sweden
| | - Gabriel Oliveira
- Department of Food Science, Federal University of Minas Gerais, Brazil
| | - Mary Ann Lila
- Food Bioprocessing and Nutrition Sciences Department, Plants for Human Health Institute, North Carolina State University, North Carolina Research Campus, Kannapolis, North Carolina, USA
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12
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Ren Y, Zhu Y, Qi X, Yan H, Zhao Y, Wu Y, Zhang N, Ding Z, Yuan L, Liu M. Noncovalent interaction of chlorogenic acid and/or gallocatechin gallate with β-lactoglobulin: Effect on stability and bioaccessibility of complexes and nanoparticles. Lebensm Wiss Technol 2023. [DOI: 10.1016/j.lwt.2023.114493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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13
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Unique roles in health promotion of dietary flavonoids through gut microbiota regulation: Current understanding and future perspectives. Food Chem 2023; 399:133959. [DOI: 10.1016/j.foodchem.2022.133959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Revised: 08/08/2022] [Accepted: 08/13/2022] [Indexed: 11/21/2022]
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14
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Zhang G, Zhu M, Liao Y, Gong D, Hu X. Action mechanisms of two key xanthine oxidase inhibitors in tea polyphenols and their combined effect with allopurinol. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2022; 102:7195-7208. [PMID: 35727856 DOI: 10.1002/jsfa.12085] [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] [Received: 03/04/2022] [Revised: 06/21/2022] [Accepted: 06/21/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Tea polyphenols have been reported to have the effect of lowering uric acid. However, there are few studies on the inhibitory effects and molecular mechanisms of specific catechins on the urate-metabolizing enzyme xanthine oxidase (XO). In this research, multiple spectroscopic methods and computer simulations were used to determine the inhibitory ability and mechanisms of epigallocatechin gallate (EGCG) and gallocatechin gallate (GCG) on XO. RESULTS Herein, EGCG and GCG reversibly inhibited XO activity in a mixed manner, with IC50 values of 40.50 ± 0.32 and 33.60 ± 0.53 μmol L-1 , and also decreased the superoxide anion radical (O2 - ) of the catalytic system by reducing the XO molecule and inhibiting the formation of uric acid. The combination of EGCG or GCG with allopurinol showed synergistic inhibition on XO. The binding of EGCG or GCG to XO with moderate affinity formed a stable complex by hydrogen bonds and van der Waals forces. The presence of EGCG and GCG made the structure of XO more stable and compact. The two inhibitors bound to the vicinity of flavin adenine dinucleotide (FAD) in XO, hindering the entry of substrate; thus the activity of XO was suppressed. CONCLUSION Both EGCG and GCG are excellent natural XO inhibitors, and inhibited the activity of XO by occupying the channel of the substrate to enter the active center and interfering with the dual substrate reaction catalyzed by XO. These findings provide a scientific basis for the application of catechins in dietary supplements and medicines with lowering uric acid effects. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Guowen Zhang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Miao Zhu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Yijing Liao
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Deming Gong
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Xing Hu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
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15
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Hydrophobic bonds-dominated key off-odors/silver carp myofibrillar protein interactions, and their binding characteristics at cold storage and oral temperatures. Food Chem X 2022; 15:100396. [PMID: 36211727 PMCID: PMC9532728 DOI: 10.1016/j.fochx.2022.100396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 07/12/2022] [Accepted: 07/14/2022] [Indexed: 11/23/2022] Open
Abstract
Off-odors binding to MP via hydrophobic forces is a spontaneous process. Nonanal had the strongest binding ability to MP among the three off-odors. MD method provided a structural basis for the fluorescence spectroscopic analysis. Three off-odors, especially nonanal, could change the conformation of MP. Compared with others, nonanal formed more binding sites to Trp residues in Myosin1.
This study revealed the interaction mechanism between silver carp myofibrillar protein (MP) and key off-odors by combining fluorescence spectroscopy with molecular dynamics (MD) simulation. Spectroscopic results exhibited a dynamic quenching mechanism between MP and off-odors. Thermodynamic analysis indicated that the MP/off-odors interaction was spontaneous (ΔG° < 0) and dominated by hydrophobic interactions (ΔH° > 0, ΔS° > 0). Meanwhile, the binding affinity was in the order of nonanal (n = 1.38) > hexanal (n = 0.89) > 1-octen-3-ol (n = 0.65), which was further verified by the MD results. Among off-odors, nonanal had the highest binding energy with myosin (8105.66 kJ/mol) and formed more hydrophobic binding sites to Trp residues in myosin head (e.g., Trp820 and Trp822), thereby changing myosin conformations via both physical and chemical interactions. Additionally, higher binding energies of myosin/off-odors were observed at oral temperature (37 °C) than at cold storage temperature (4 °C), implying that less off-odors were released at 37 °C.
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16
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Wang L, Wang X, Luo F, Li Y. Effect of ultrasound on
cyanidin‐3‐O
‐glucoside and β‐lactoglobulin binding interaction and functional properties. Int J Food Sci Technol 2022. [DOI: 10.1111/ijfs.16037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lijie Wang
- College of Food and Health, Jinzhou Medical University No. 5 Renmin Street Jinzhou 121001 China
| | - Xiaohan Wang
- College of Food and Health, Jinzhou Medical University No. 5 Renmin Street Jinzhou 121001 China
| | - Feng Luo
- College of Food and Health, Jinzhou Medical University No. 5 Renmin Street Jinzhou 121001 China
| | - Yuefei Li
- College of Food and Health, Jinzhou Medical University No. 5 Renmin Street Jinzhou 121001 China
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17
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Wang Y, Zhang J, Zhang L. Study on the mechanism of non-covalent interaction between rose anthocyanin extracts and whey protein isolate under different pH conditions. Food Chem 2022; 384:132492. [PMID: 35217461 DOI: 10.1016/j.foodchem.2022.132492] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 01/09/2022] [Accepted: 02/14/2022] [Indexed: 12/11/2022]
Abstract
The non-covalent interaction between anthocyanin and dietary protein had an impact on their physicochemical property. The purpose of this study was to study the non-covalent interaction mechanism between rose anthocyanin extract (RAEs) and whey protein isolate (WPI), and further compare the interaction mechanism with pure anthocyanin (PC) and WPI. At pH 3.0 and pH 7.0, RAEs and WPI had non-covalent interactions in the two systems with two types of unequal and mutually influencing binding sites, and the interaction forces were both hydrogen bonds and van der Waals forces. Interestingly, PC and WPI also had non-covalent interactions in both systems, the number of which binding sites was about one type, and the forces were hydrogen bonds and van der Waals forces. In addition, a variety of spectral combination techniques indicated that RAEs and PC caused similar changes in the secondary structure of WPI.
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Affiliation(s)
- Yun Wang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi Jiangsu 214122, China
| | - Jian Zhang
- The Food College of Shihezi University, Shihezi, Xinjiang 832003, China
| | - Lianfu Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi Jiangsu 214122, China; The Food College of Shihezi University, Shihezi, Xinjiang 832003, China.
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18
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Hao L, Sun J, Pei M, Zhang G, Li C, Li C, Ma X, He S, Liu L. Impact of non-covalent bound polyphenols on conformational, functional properties and in vitro digestibility of pea protein. Food Chem 2022; 383:132623. [PMID: 35413763 DOI: 10.1016/j.foodchem.2022.132623] [Citation(s) in RCA: 47] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 03/01/2022] [Accepted: 03/01/2022] [Indexed: 11/15/2022]
Abstract
This study investigated the effects of the non-covalent interaction of pea protein isolate (PPI) with epigallocatechin-3-gallate (EGCG), chlorogenic acid (CA) and resveratrol (RES) on the structural and functional properties of proteins. The conformational changes of the protein structure with EGCG, CA and RES were analyzed using fourier transform infrared spectroscopy. Polyphenols strongly quenched the intrinsic fluorescence of PPI mainly through static quenching. The main interaction force was hydrogen bonding and van der Waals forces for PPI-EGCG, the main interaction force of PPI-CA complex was electrostatic interaction, while RES and PPI were bound by hydrophobic interaction. Free sulfhydryl groups and surface hydrophobicity significantly decreased in PPI after binding with phenolic compounds. The presence of EGCG, CA and RES enhanced the emulsification, foaming and in vitro digestibility of PPI. These results illustrate the potential applications of PPI-polyphenol complexes in food formulations.
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Affiliation(s)
- Linlin Hao
- Key Laboratory of Dairy Sciences, Ministry of Education, College of Food Sciences, Northeast Agricultural University, Harbin 150030, China
| | - Jinwei Sun
- Institute of Science and Technology Newhopedairy Co., Ltd, Chengdu 610011, China
| | - Mengqi Pei
- Key Laboratory of Dairy Sciences, Ministry of Education, College of Food Sciences, Northeast Agricultural University, Harbin 150030, China
| | - Guofang Zhang
- Key Laboratory of Dairy Sciences, Ministry of Education, College of Food Sciences, Northeast Agricultural University, Harbin 150030, China.
| | - Chun Li
- Key Laboratory of Dairy Sciences, Ministry of Education, College of Food Sciences, Northeast Agricultural University, Harbin 150030, China; Heilongjiang Green Food Research Institute, Harbin 150028, China
| | - Chunmei Li
- Heilongjiang Green Food Research Institute, Harbin 150028, China
| | - Xinkai Ma
- Key Laboratory of Dairy Sciences, Ministry of Education, College of Food Sciences, Northeast Agricultural University, Harbin 150030, China
| | - Sixuan He
- Key Laboratory of Dairy Sciences, Ministry of Education, College of Food Sciences, Northeast Agricultural University, Harbin 150030, China
| | - Libo Liu
- Key Laboratory of Dairy Sciences, Ministry of Education, College of Food Sciences, Northeast Agricultural University, Harbin 150030, China.
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19
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Qie X, Chen W, Wu R, Wang Z, Zeng M, Chen J, Douglas Goff H, He Z. The effects of β-lactoglobulin on cyanidin-3-O-glucoside antioxidant activity and bioaccessibility after heat treatment. Food Res Int 2022; 157:111494. [PMID: 35761714 DOI: 10.1016/j.foodres.2022.111494] [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: 03/02/2022] [Revised: 05/11/2022] [Accepted: 06/07/2022] [Indexed: 11/04/2022]
Abstract
The impact of heat treatment at different temperatures on the interaction of β-lactoglobulin (β-Lg) and anthocyanin-3-O-glucoside (C3G) was studied. Heat treatment and the addition of C3G changed the secondary structure of β-Lg with decreasing β-sheets and increasing random coils. Interactions between C3G and β-Lg were mainly via hydrogen bonds and van der Waals forces at 25 °C. The elevated temperature promoted hydrophobic interactions between C3G and β-Lg due to an increase in the hydrophobic groups and amino groups on the surface of β-Lg molecules. The addition of β-Lg to the C3G eliminated heat-induced thermal degradation of C3G. The β-Lg-C3G interactions accompanied with increased particle size and constant zeta potential could increase the antioxidant capacity of C3G approximately by 4% to 10% and protect the colour of C3G from degradation under heat treatment. The C3G bioaccessibility with β-Lg addition increased by 26.08%, 33.45%, 83.09%, 72.27%, and 354.62% compared with C-25, C-60, C-85, C-100, and C-121, respectively. The protective effect of the non-covalent interactions on C3G at high temperatures (85 °C to 121 °C) was significantly stronger than at 25 °C and 60 °C. The application of β-Lg in foodstuffs could enhance the antioxidant activity and bioaccessibility of C3G.
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Affiliation(s)
- Xuejiao Qie
- State Key Laboratory of Food Science and Technoloy, Jiangnan University, Wuxi 214122, China; International Joint Laboratory on Food Safety, Jiangnan University, Wuxi 214122, China
| | - Wenpu Chen
- State Key Laboratory of Food Science and Technoloy, Jiangnan University, Wuxi 214122, China; International Joint Laboratory on Food Safety, Jiangnan University, Wuxi 214122, China
| | - Renyi Wu
- State Key Laboratory of Food Science and Technoloy, Jiangnan University, Wuxi 214122, China; International Joint Laboratory on Food Safety, Jiangnan University, Wuxi 214122, China
| | - Zhaojun Wang
- State Key Laboratory of Food Science and Technoloy, Jiangnan University, Wuxi 214122, China
| | - Maomao Zeng
- State Key Laboratory of Food Science and Technoloy, Jiangnan University, Wuxi 214122, China
| | - Jie Chen
- State Key Laboratory of Food Science and Technoloy, Jiangnan University, Wuxi 214122, China
| | - H Douglas Goff
- Department of Food Science, University of Guelph, ON N1G2W1, Canada
| | - Zhiyong He
- State Key Laboratory of Food Science and Technoloy, Jiangnan University, Wuxi 214122, China; International Joint Laboratory on Food Safety, Jiangnan University, Wuxi 214122, China.
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20
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Ma Z, Guo A, Jing P. Advances in dietary proteins binding with co-existed anthocyanins in foods: Driving forces, structure-affinity relationship, and functional and nutritional properties. Crit Rev Food Sci Nutr 2022; 63:10792-10813. [PMID: 35748363 DOI: 10.1080/10408398.2022.2086211] [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: 11/03/2022]
Abstract
Anthocyanins, which are the labile flavonoid pigments widely distributed in many fruits, vegetables, cereal grains, and flowers, are receiving intensive interest for their potential health benefits. Proteins are important food components from abundant sources and present high binding affinity for small dietary compounds, e.g., anthocyanins. Protein-anthocyanin interactions might occur during food processing, ingestion, digestion, and bioutilization, leading to significant changes in the structure and properties of proteins and anthocyanins. Current knowledge of protein-anthocyanin interactions and their contributions to functions and bioactivities of anthocyanin-containing foods were reviewed. Binding characterization of dietary protein-anthocyanins complexes is outlined. Advances in understanding the structure-affinity relationship of dietary protein-anthocyanin interaction are critically discussed. The associated properties of protein-anthocyanin complexes are considered in an evaluation of functional and nutritional values.
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Affiliation(s)
- Zhen Ma
- Shanghai Food Safety and Engineering Technology Research Center, Bor S. Luh Food Safety Research Center, Key Lab of Urban Agriculture (South), School of Agriculture & Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Anqi Guo
- Shanghai Food Safety and Engineering Technology Research Center, Bor S. Luh Food Safety Research Center, Key Lab of Urban Agriculture (South), School of Agriculture & Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Pu Jing
- Shanghai Food Safety and Engineering Technology Research Center, Bor S. Luh Food Safety Research Center, Key Lab of Urban Agriculture (South), School of Agriculture & Biology, Shanghai Jiao Tong University, Shanghai, China
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21
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Recent advances in protein-polyphenol interactions focusing on structural properties related to antioxidant activities. Curr Opin Food Sci 2022. [DOI: 10.1016/j.cofs.2022.100840] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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22
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Zeng A, Wang B, Zhang C, Yang R, Yu S, Zhao W. Physicochemical properties and antibacterial application of silver nanoparticles stabilized by whey protein isolate. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.101569] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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23
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Effect of Soybean Protein Isolate-7s on Delphinidin-3- O-Glucoside from Purple Corn Stability and Their Interactional Characterization. Foods 2022; 11:foods11070895. [PMID: 35406982 PMCID: PMC9254744 DOI: 10.3390/foods11070895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 03/12/2022] [Accepted: 03/14/2022] [Indexed: 11/29/2022] Open
Abstract
Anthocyanins are abundant in purple corn and beneficial to human health. Soybean protein isolate-7s (SPI-7s) could enhance the stability of anthocyanins. The stable system of soybean protein isolate-7s and delphinidin-3-O-glucoside complex (SPI-7s-D3G) was optimized using the Box–Behnken design at pH 2.8 and pH 6.8. Under the condition of pH 2.8, SPI-7s effectively improved the sunlight-thermal stabilities of delphinidin-3-O-glucoside (D3G). The thermal degradation of D3G conformed to the first order kinetics within 100 min, the negative enthalpy value and positive entropy value indicated that interaction was caused by electrostatic interaction, and the negative Gibbs free energy value reflected a spontaneous interaction between SPI-7s and D3G. The interaction of SPI-7s-D3G was evaluated by ultraviolet visible spectroscopy, circular dichroism spectroscopy and fluorescence spectroscopy. The results showed that the maximum absorption peak was redshifted with increasing the α-helix content and decreasing the β-sheet contents, and D3G quenched the intrinsic fluorescence of SPI-7s by static quenching. There was one binding site in the SPI-7s and D3G stable system. The secondary structure of SPI-7s had changed and the complex was more stable. The stabilized SPI-7s-D3G will have broad application prospects in functional foods.
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24
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Zhang N, Zhang X, Zhang Y, Li Y, Gao Y, Li Q, Yu X. Non-covalent interaction between pea protein isolate and catechin: effects on protein structure and functional properties. Food Funct 2022; 13:12208-12218. [DOI: 10.1039/d2fo01549h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The aim of this study was to investigate the effects of non-covalent interaction between pea protein isolate (PPI) and different concentrations (0.05–0.25%, w/v) of catechin (CT) on the structural and functional characteristics of protein.
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Affiliation(s)
- Na Zhang
- Shaanxi “Four Subjects and One Union” Engineering Technology School-Enterprise Joint Research Center of Functional Oils, College of Food Science and Engineering, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, P. R. China
| | - Xuping Zhang
- Shaanxi “Four Subjects and One Union” Engineering Technology School-Enterprise Joint Research Center of Functional Oils, College of Food Science and Engineering, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, P. R. China
| | - Yan Zhang
- Shaanxi “Four Subjects and One Union” Engineering Technology School-Enterprise Joint Research Center of Functional Oils, College of Food Science and Engineering, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, P. R. China
| | - Yonglin Li
- Shaanxi “Four Subjects and One Union” Engineering Technology School-Enterprise Joint Research Center of Functional Oils, College of Food Science and Engineering, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, P. R. China
| | - Yuan Gao
- Shaanxi “Four Subjects and One Union” Engineering Technology School-Enterprise Joint Research Center of Functional Oils, College of Food Science and Engineering, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, P. R. China
| | - Qi Li
- Shaanxi “Four Subjects and One Union” Engineering Technology School-Enterprise Joint Research Center of Functional Oils, College of Food Science and Engineering, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, P. R. China
| | - Xiuzhu Yu
- Shaanxi “Four Subjects and One Union” Engineering Technology School-Enterprise Joint Research Center of Functional Oils, College of Food Science and Engineering, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, P. R. China
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25
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Sudjarwo WAA, Dobler MT, Lieberzeit PA. QCM-based assay designs for human serum albumin. Anal Bioanal Chem 2022; 414:731-741. [PMID: 34950982 PMCID: PMC8748353 DOI: 10.1007/s00216-021-03771-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 10/28/2021] [Accepted: 11/02/2021] [Indexed: 12/13/2022]
Abstract
Solid-phase synthesis is an elegant way to create molecularly imprinted polymer nanoparticles (nano-MIPs) comprising a single binding site, i.e. mimics of antibodies. When using human serum albumin (HSA) as the template, one achieves nano-MIPs with 53 ± 19 nm diameter, while non-imprinted polymer nanoparticles (nano-NIPs) reach 191 ± 96 nm. Fluorescence assays lead to Stern-Volmer plots revealing selective binding to HSA with selectivity factors of 1.2 compared to bovine serum albumin (BSA), 1.9 for lysozyme, and 4.1 for pepsin. Direct quartz crystal microbalance (QCM) assays confirm these results: nano-MIPs bind to HSA immobilized on QCM surfaces. This opens the way for competitive QCM-based assays for HSA: adding HSA to nanoparticle solutions indeed reduces binding to the QCM surfaces in a concentration-dependent manner. They achieve a limit of detection (LoD) of 80 nM and a limit of quantification (LoQ) of 244 nM. Furthermore, the assay shows recovery rates around 100% for HSA even in the presence of competing analytes.
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Affiliation(s)
- Wisnu Arfian A Sudjarwo
- University of Vienna, Faculty for Chemistry, Department of Physical Chemistry, Waehringer Strasse 42, 1090, Vienna, Austria
| | - Mathias Thomas Dobler
- University of Vienna, Faculty for Chemistry, Department of Physical Chemistry, Waehringer Strasse 42, 1090, Vienna, Austria
| | - Peter A Lieberzeit
- University of Vienna, Faculty for Chemistry, Department of Physical Chemistry, Waehringer Strasse 42, 1090, Vienna, Austria.
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26
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Wang Y, Zhang J, Zhang L. Anthocyanin-Dietary Proteins Interaction and Its Current Applications in Food Industry. FOOD REVIEWS INTERNATIONAL 2021. [DOI: 10.1080/87559129.2021.2012189] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Yun Wang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Jian Zhang
- School of Food Science and Technology, The Food College of Shihezi University, Shihezi, Xinjiang, China
| | - Lianfu Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
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27
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Interaction between β-lactoglobulin and chlorogenic acid and its effect on antioxidant activity and thermal stability. Food Hydrocoll 2021. [DOI: 10.1016/j.foodhyd.2021.107059] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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28
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Ren S, Jiménez-Flores R, Giusti MM. The interactions between anthocyanin and whey protein: A review. Compr Rev Food Sci Food Saf 2021; 20:5992-6011. [PMID: 34622535 DOI: 10.1111/1541-4337.12854] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 08/30/2021] [Accepted: 09/08/2021] [Indexed: 12/27/2022]
Abstract
Anthocyanins (ACN) are natural pigments that produce bright red, blue, and purple colors in plants and can be used to color food products. However, ACN sensitivity to different factors limits their applications in the food industry. Whey protein (WP), a functional nutritional additive, has been shown to interact with ACN and improve the color, stability, antioxidant capacity, bioavailability, and other functional properties of the ACN-WP complex. The WP's secondary structure is expected to unfold due to heat treatment, which may increase its binding affinity with ACN. Different ACN structures will also have different binding affinity with WP and their interaction mechanism may also be different. Circular dichroism (CD) spectroscopy and Fourier transform infrared (FTIR) spectroscopy show that the WP secondary structure changes after binding with ACN. Fluorescence spectroscopy shows that the WP maximum fluorescence emission wavelength shifts, and the fluorescence intensity decreases after interaction with ACN. Moreover, thermodynamic analysis suggests that the ACN-WP binding forces are mainly hydrophobic interactions, although there is also evidence of electrostatic interactions and hydrogen bonding between ACN and WP. In this review, we summarize the information available on ACN-WP interactions under different conditions and discuss the impact of different ACN chemical structures and of WP conformation changes on the affinity between ACN and WP. This summary helps improve our understanding of WP protection of ACN against color degradation, thus providing new tools to improve ACN color stability and expanding the applications of ACN and WP in the food and pharmacy industries.
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Affiliation(s)
- Shuai Ren
- The Ohio State University, Department of Food Science and Technology, Columbus, Ohio, USA
| | - Rafael Jiménez-Flores
- The Ohio State University, Department of Food Science and Technology, Columbus, Ohio, USA
| | - Maria Monica Giusti
- The Ohio State University, Department of Food Science and Technology, Columbus, Ohio, USA
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29
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Wei X, Dai J, Zhong Y, Zhang D, Liu L, Wang L, Huang Y, Chen P, Zhou Z, Chen X, Yang X, Wang Q. Caffeic acid phenethyl ester loaded in nano-targeted delivery system with casein: Physicochemical characterization, in vitro release, and binding mechanisms. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111938] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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30
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Zhu M, Pan J, Hu X, Zhang G. Epicatechin Gallate as Xanthine Oxidase Inhibitor: Inhibitory Kinetics, Binding Characteristics, Synergistic Inhibition, and Action Mechanism. Foods 2021; 10:2191. [PMID: 34574301 PMCID: PMC8464939 DOI: 10.3390/foods10092191] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 09/10/2021] [Accepted: 09/13/2021] [Indexed: 01/03/2023] Open
Abstract
Epicatechin gallate (ECG) is one of the main components of catechins and has multiple bioactivities. In this work, the inhibitory ability and molecular mechanism of ECG on XO were investigated systematically. ECG was determined as a mixed xanthine oxidase (XO) inhibitor with an IC50 value of 19.33 ± 0.45 μM. The promotion of reduced XO and the inhibition of the formation of uric acid by ECG led to a decrease in O2- radical. The stable ECG-XO complex was formed by hydrogen bonds and van der Waals forces, with the binding constant of the magnitude of 104 L mol-1, and ECG influenced the stability of the polypeptide skeleton and resulted in a more compact conformation of XO. Computational simulations further characterized the binding characteristics and revealed that the inhibitory mechanism of ECG on XO was likely that ECG bound to the vicinity of flavin adenine dinucleotide (FAD) and altered the conformation of XO, hindering the entry of substrate and the diffusion of catalytic products. ECG and allopurinol bound to different active sites of XO and exerted a synergistic inhibitory effect through enhancing their binding stability with XO and changing the target amino acid residues of XO. These findings may provide a theoretical basis for the further application of ECG in the fields of food nutrition and functional foods.
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Affiliation(s)
| | | | | | - Guowen Zhang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China; (M.Z.); (J.P.); (X.H.)
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Diez-Sánchez E, Quiles A, Hernando I. Interactions between Blackcurrant Polyphenols and Food Macronutrients in Model Systems: In Vitro Digestion Studies. Foods 2021; 10:foods10040847. [PMID: 33924602 PMCID: PMC8070145 DOI: 10.3390/foods10040847] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 04/08/2021] [Accepted: 04/09/2021] [Indexed: 12/22/2022] Open
Abstract
Blackcurrant pomace, rich in fiber and polyphenols, can be used as added-value ingredient for food formulation. However, the bounding of polyphenols to pomace and the interactions that take place with food nutrients modify polyphenol bioaccessibility. This work studied the interactions between polyphenols and the main macronutrients in foods, and the changes that occurred during in vitro digestion, using model systems. Model systems were formulated with (i) water, (ii) wheat starch, (iii) olive oil, (iv) whey protein, and (v) a model combining all the ingredients. Polyphenols were added from two sources: as pomace and as a polyphenolic pomace extract. Interactions between polyphenols and macronutrients were studied using light microscopy; total phenolic content (TPC) and antioxidant capacity (AC) were determined before and after the in vitro digestion process. Lastly, the bioaccessibility of the samples was calculated. Polyphenols incorporated into the model systems as pomace increased their bioaccessibility if compared to polyphenols added as extract. For single-nutrient model systems formulated with pomace, the bioaccessibility was higher than when the system contained all the nutrients. Of all the components studied, the greatest effect on bioaccessibility was observed for proteins.
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