1
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Liu Y, Wang S, Liu Y. Ultrasound-mediated host-guest self-assembly between different dietary fatty acids and sodium caseinate and their complexes improving the water dispersibility, stability, and bioaccessibility of quercetin. Food Chem 2024; 448:139054. [PMID: 38552465 DOI: 10.1016/j.foodchem.2024.139054] [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: 11/15/2023] [Revised: 03/13/2024] [Accepted: 03/14/2024] [Indexed: 04/24/2024]
Abstract
Quercetin (QUE) sufferred from poor processing adaptability and absorbability, hindering its application as a dietary supplement in the food industry. In this study, fatty acids (FAs)-sodium caseinate (NaCas) ligand complexes carriers were fabricated to improve the aqueous dispersibility, storage/thermal stability, and bioaccessibility of QUE using an ultrasound method. The results indicated that all six selected common dietary FAs formed stable hydrophilic complexes with NaCas and the FAs-NaCas complexes achieved an encapsulation efficiency greater than 90 % for QUE. Furthermore, the introduction of FAs enhanced the binding affinity between NaCas and QUE, but did not change the binding mode (static bursting) and types of intermolecular forces (mainly hydrogen bonding). In addition, a distinct improvement was discovered in the storage stability (>2.37-fold), thermal processing stability (>32.54 %), and bioaccessibility (>2.37-fold) of QUE. Therefore, the FAs-NaCas ligand complexes could effectively protect QUE to minimize degradation as fat-soluble polyphenol delivery vehicles.
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Affiliation(s)
- Yunjun Liu
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen, Fujian 361021, People's Republic of China
| | - Shengnan Wang
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen, Fujian 361021, People's Republic of China
| | - Yixiang Liu
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen, Fujian 361021, People's Republic of China.
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2
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Li T, Kong X, Shao Z, Zhang Y, Yang C, Liu K, Xin Y, Chen F, Dong Y. Characteristic and stability changes of peanut oil body emulsion during the process of demulsification using heptanoic acid. Food Chem 2024; 460:140301. [PMID: 39067429 DOI: 10.1016/j.foodchem.2024.140301] [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: 02/18/2024] [Revised: 06/19/2024] [Accepted: 06/29/2024] [Indexed: 07/30/2024]
Abstract
In this paper, the changes in oil body emulsion (OBE) during heptanoic acid demulsification (HD) were investigated from the macro and microscopic points of view. Specifically, the OBE particle size increased from 3.04 to 8.41 µm, while the zeta potential absolute decreased to 2.89 mV. The interfacial tension and apparent viscosity of OBE were reduced significantly. Heptanoic acid could contribute to oil droplets aggregation. The findings indicated that high-molecular proteins, including lipoxygenase (97.58 kDa) and arachin (70.28 kDa), detached from the OBs' interface. HD caused alterations in the secondary structure of protein and the environment around proteins changed. The HD mechanism was speculated that the addition of heptanoic acid resulted in the reduction in pH and changes of environment surrounding OBE, which triggered polymerization and the phase transformation of the oil droplets. Overall, this study is vital for solving the problem of demulsification during aqueous enzymatic extraction (AEE).
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Affiliation(s)
- Tianci Li
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, China; School of Food and Reserves Storage, Henan University of Technology, Zhengzhou 450001, China
| | - Xiangrui Kong
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Zhihua Shao
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Yiyang Zhang
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Chenxian Yang
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, China.
| | - Kunlun Liu
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, China; School of Food and Reserves Storage, Henan University of Technology, Zhengzhou 450001, China
| | - Ying Xin
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Fusheng Chen
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Yifan Dong
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, China
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3
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Xiao J, Niu L, Tong Z, Jin S, Wang X, Liu X, Xiao C, Fan H. Chemical acylation of pea protein isolate hydrolysate with fatty acid N-hydroxysuccinimide esters: Effect on structure and functional properties. Food Chem 2024; 443:138495. [PMID: 38277937 DOI: 10.1016/j.foodchem.2024.138495] [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: 10/19/2023] [Revised: 01/07/2024] [Accepted: 01/16/2024] [Indexed: 01/28/2024]
Abstract
Applications of pea protein in the food industry have been greatly restricted by its poor functional properties. In order to solve this problem, a novel technique combining enzymatic hydrolysis and fatty acid acylation has been applied in this work to construct a pea protein-fatty acid covalent complex that aims to improve its functional properties. The processed pea protein with increased water solubility tends to decrease the chance of self-aggregation. Additionally, emulsifying and antioxidant properties have also been found after this process. On top of that, the modified pea protein has been characterized by Fourier transform infrared and circular dichroism spectroscopy. These results demonstrate that these properties were mainly caused by the acylation of the amino group from hydrolyzed pea protein and the carboxyl group from the fatty acid. The enzymatic hydrolysis/fatty acid acylation research provides insights into manufacturing high-quality functional lipoproteins from inexpensive pea protein for the food industry.
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Affiliation(s)
- Jing Xiao
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, PR China
| | - Li Niu
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, PR China
| | - Zongbo Tong
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, PR China
| | - Shuxiu Jin
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, PR China
| | - Xiaomei Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, PR China
| | - Xuebo Liu
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, PR China
| | - Chunxia Xiao
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, PR China.
| | - Huafang Fan
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, PR China.
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4
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Liu C, Chen F. Study on the Stability Mechanism of Peanut OBs Extracted with the Aqueous Enzymatic Method. Foods 2023; 12:3446. [PMID: 37761154 PMCID: PMC10527780 DOI: 10.3390/foods12183446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 09/02/2023] [Accepted: 09/05/2023] [Indexed: 09/29/2023] Open
Abstract
In this study, the internal relationships among oil bodies (OBs), the protein-phospholipid interactions in aqueous phase, oil-water interface behavior, and the stability of reconstituted OBs were analyzed from the bulk phase, interface, and macro perspectives, and the stability mechanism of OBs was discussed. OB proteins and phospholipids were combined through hydrophobic and electrostatic interactions, resulting in the stretching of protein conformation. OB proteins and phospholipids act synergistically to increase interface pressure and the rate of increase in interface pressure with relatively stable elastic behavior, which is beneficial to the formation and stability of interfacial films. When OBs were reconstituted by an OB protein-phospholipid complex system, phospholipids bound to OB proteins through hydrophobic and electrostatic interactions. OB proteins and phospholipids uniformly covered the oil droplet surface of reconstituted OBs to form a stable interfacial film, which maintained the stability of OBs. The addition of phospholipids significantly reduced the particle size of OBs prepared by OB proteins in a dose-dependent manner, and particle size decreased with the increase in phospholipid content (p < 0.05). Phospholipids increased the net surface charge, enhanced electrostatic repulsion, and improved the physicochemical stability of reconstituted OBs. The stability mechanism elucidated in this study provides a theoretical basis for the demulsification of peanut OBs.
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Affiliation(s)
- Chen Liu
- College of Biology and Food, Shangqiu Normal University, Shangqiu 476000, China;
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Fusheng Chen
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, China
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5
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Ke Z, Fan X, Di Y, Chen F, Han X, Yang K, Li B. A Comprehensive Investigation into the Crystallology, Molecule, and Quantum Chemistry Properties of Two New Hydrous Long-Chain Dibasic Ammonium Salts CnH2n+8N2O6 (n = 35 and 37). Int J Mol Sci 2023; 24:ijms24065467. [PMID: 36982543 PMCID: PMC10052139 DOI: 10.3390/ijms24065467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 03/01/2023] [Accepted: 03/05/2023] [Indexed: 03/18/2023] Open
Abstract
Through the salification reaction of carboxylation, successful attachment of the long-chain alkanoic acid to the two ends of 1,3-propanediamine was realized, which enabled the doubling of the long-chain alkanoic acid carbon chain. Hydrous 1,3-propanediamine dihexadecanoate (abbreviated as 3C16) and 1,3-propanediamine diheptadecanoate (abbreviated as 3C17) were synthesized afterward, and their crystal structures were characterized by the X-ray single crystal diffraction technique. By analyzing their molecular and crystal structure, their composition, spatial structure, and coordination mode were determined. Two water molecules played important roles in stabilizing the framework of both compounds. Hirshfeld surface analysis revealed the intermolecular interactions between the two molecules. The 3D energy framework map presented the intermolecular interactions more intuitively and digitally, in which dispersion energy plays a dominant role. DFT calculations were performed to analyze the frontier molecular orbitals (HOMO–LUMO). The energy difference between the HOMO–LUMO is 0.2858 eV and 0.2855 eV for 3C16 and 3C17, respectively. DOS diagrams further confirmed the distribution of the frontier molecular orbitals of 3C16 and 3C17. The charge distributions in the compounds were visualized using a molecular electrostatic potential (ESP) surface. ESP maps indicated that the electrophilic sites are localized around the oxygen atom. The crystallographic data and parameters of quantum chemical calculation in this paper will provide data and theoretical support for the development and application of such materials.
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Affiliation(s)
- Zengbo Ke
- School of Materials Science and Chemical Engineering, Xi’an Technological University, Xi’an 710021, China
- College of Chemical Engineering and Modern Materials, Shaanxi Key Laboratory of Comprehensive Utilization of Tailings Resources, Shangluo University, Shangluo 726000, China
| | - Xinhui Fan
- School of Materials Science and Chemical Engineering, Xi’an Technological University, Xi’an 710021, China
- Correspondence: (X.F.); (Y.D.)
| | - Youying Di
- College of Chemical Engineering and Modern Materials, Shaanxi Key Laboratory of Comprehensive Utilization of Tailings Resources, Shangluo University, Shangluo 726000, China
- Correspondence: (X.F.); (Y.D.)
| | - Fengying Chen
- College of Chemical Engineering and Modern Materials, Shaanxi Key Laboratory of Comprehensive Utilization of Tailings Resources, Shangluo University, Shangluo 726000, China
| | - Xi Han
- College of Chemical Engineering and Modern Materials, Shaanxi Key Laboratory of Comprehensive Utilization of Tailings Resources, Shangluo University, Shangluo 726000, China
| | - Ke Yang
- School of Materials Science and Chemical Engineering, Xi’an Technological University, Xi’an 710021, China
| | - Bing Li
- School of Materials Science and Chemical Engineering, Xi’an Technological University, Xi’an 710021, China
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6
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Liu L, Huang Y, Zhang X, Zeng J, Zou J, Zhang L, Gong P. Texture analysis and physicochemical characteristics of fermented soymilk gel by different lactic acid bacteria. Food Hydrocoll 2023. [DOI: 10.1016/j.foodhyd.2022.108252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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7
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Cai Z, Wei Y, Shi A, Zhong J, Rao P, Wang Q, Zhang H. Correlation between interfacial layer properties and physical stability of food emulsions: current trends, challenges, strategies, and further perspectives. Adv Colloid Interface Sci 2023; 313:102863. [PMID: 36868168 DOI: 10.1016/j.cis.2023.102863] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 02/16/2023] [Accepted: 02/18/2023] [Indexed: 03/02/2023]
Abstract
Emulsions are thermodynamically unstable systems that tend to separate into two immiscible phases over time. The interfacial layer formed by the emulsifiers adsorbed at the oil-water interface plays an important role in the emulsion stability. The interfacial layer properties of emulsion droplets have been considered the cutting-in points that influence emulsion stability, a traditional motif of physical chemistry and colloid chemistry of particular significance in relation to the food science and technology sector. Although many attempts have shown that high interfacial viscoelasticity may contribute to long-term emulsion stability, a universal relationship for all cases between the interfacial layer features at the microscopic scale and the bulk physical stability of the emulsion at the macroscopic scale remains to be established. Not only that, but integrating the cognition from different scales of emulsions and establishing a unified single model to fill the gap in awareness between scales also remain challenging. In this review, we present a comprehensive overview of recent progress in the general science of emulsion stability with a peculiar focus on interfacial layer characteristics in relation to the formation and stabilization of food emulsions, where the natural origin and edible safety of emulsifiers and stabilizers are highly requested. This review begins with a general overview of the construction and destruction of interfacial layers in emulsions to highlight the most important physicochemical characteristics of interfacial layers (formation kinetics, surface load, interactions among adsorbed emulsifiers, thickness and structure, and shear and dilatational rheology), and their roles in controlling emulsion stability. Subsequently, the structural effects of a series of typically dietary emulsifiers (small-molecule surfactants,proteins, polysaccharides, protein-polysaccharide complexes, and particles) on oil-water interfaces in food emulsions are emphasized. Finally, the main protocols developed for modifying the structural characteristics of adsorbed emulsifiers at multiple scales and improving the stability of emulsions are highlighted. Overall, this paper aims to comprehensively study the literature findings in the past decade and find out the commonality of multi-scale structures of emulsifiers, so as to deeply understand the common characteristics and emulsification stability behaviour of adsorption emulsifiers with different interfacial layer structures. It is difficult to say that there has been significant progress in the underlying principles and technologies in the general science of emulsion stability over the last decade or two. However, the correlation between interfacial layer properties and physical stability of food emulsions promotes revealing the role of interfacial rheological properties in emulsion stability, providing guidance on controlling the bulk properties by tuning the interfacial layer functionality.
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Affiliation(s)
- Zhixiang Cai
- Advanced Rheology Institute, Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Yue Wei
- Advanced Rheology Institute, Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Aimin Shi
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, P.O. Box 5109, Beijing 100193, China
| | - Jian Zhong
- Xinhua Hospital, Shanghai Institute for Pediatric Research, Shanghai Key Laboratory of Pediatric Gastroenterology and Nutrition, Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China
| | - Pingfan Rao
- Food Nutrition Sciences Centre, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Qiang Wang
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, P.O. Box 5109, Beijing 100193, China.
| | - Hongbin Zhang
- Advanced Rheology Institute, Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University, Shanghai, 200240, China..
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8
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Wu S, Xia J, Wei Z, Sun W, Zhang X, Xiang N. Preparation, characterization, and foaming properties of soy protein nanoparticles by the cross-linking reaction induced by microbial transglutaminase. Food Hydrocoll 2023. [DOI: 10.1016/j.foodhyd.2023.108627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
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9
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Wu Y, Xiang X, Liu L, An F, Geng F, Huang Q, Wei S. Ultrasound-assisted succinylation comprehensively improved functional properties of egg white protein. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.114155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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10
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Zhu S, Zhu H, Xu S, Lv S, Liu S, Ding Y, Zhou X. Gel-type emulsified muscle products: Mechanisms, affecting factors, and applications. Compr Rev Food Sci Food Saf 2022; 21:5225-5242. [PMID: 36301621 DOI: 10.1111/1541-4337.13063] [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: 05/23/2022] [Revised: 09/08/2022] [Accepted: 10/05/2022] [Indexed: 01/28/2023]
Abstract
The gel-type emulsified muscle products improve fatty acid composition, maintain the oxidative stability, and achieve a better sensory acceptability. This review emphasizes the stabilization mechanisms of these emulsified muscle products. In particular, factors associated with the stability of the emulsified muscle systems are outlined, including the processing conditions (pH and heating), lipids, and emulsifiers. Besides, some novel systems are further introduced, including the Pickering emulsions and organogels, due to their great potential in stabilizing emulsified gels. Moreover, the promising prospects of emulsion muscle products such as improved gel properties, oxidative stability, freeze-thaw stability, fat replacement, and nutraceutical encapsulation were elaborated. This review comprehensively illustrates the considerations on developing gel-type emulsified products and provides inspiration for the rational design of emulsified muscle formulations with both oxidatively stable and organoleptically acceptable performance.
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Affiliation(s)
- Shichen Zhu
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou, China.,Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Hangzhou, China.,National R&D Branch Center for Pelagic Aquatic Products Processing (Hangzhou), Hangzhou, China
| | - Hao Zhu
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou, China
| | - Siyao Xu
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou, China
| | - Shuangbao Lv
- Zhejiang NF Refrigerated Food Co. Ltd, Hangzhou, China
| | - Shulai Liu
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou, China.,Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Hangzhou, China.,National R&D Branch Center for Pelagic Aquatic Products Processing (Hangzhou), Hangzhou, China
| | - Yuting Ding
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou, China.,Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Hangzhou, China.,National R&D Branch Center for Pelagic Aquatic Products Processing (Hangzhou), Hangzhou, China
| | - Xuxia Zhou
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou, China.,Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Hangzhou, China.,National R&D Branch Center for Pelagic Aquatic Products Processing (Hangzhou), Hangzhou, China
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11
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Liu Y, Liu Y. Construction of lipid-biomacromolecular compounds for loading and delivery of carotenoids: Preparation methods, structural properties, and absorption-enhancing mechanisms. Crit Rev Food Sci Nutr 2022; 64:1653-1676. [PMID: 36062817 DOI: 10.1080/10408398.2022.2118229] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Due to the unstable chemical properties and poor water solubility of carotenoids, their processing adaptation and oral bioavailability are poor, limiting their application in hydrophilic food systems. Lipid-biomacromolecular compounds can be excellent carriers for carotenoid delivery by taking full advantage of the solubilization of lipids to non-polar nutrients and the water dispersion and gastrointestinal controlled release properties of biomacromolecules. This paper reviewed the research progress of lipid-biomacromolecular compounds as encapsulation and delivery carriers of carotenoids and summarized the material selection and preparation methods for biomacromolecular compounds. By considering the interaction between the two, this paper briefly discussed the effect of these compounds on carotenoid water solubility, stability, and bioavailability, emphasizing their delivery effect on carotenoids. Finally, various challenges and future trends of lipid-biomacromolecular compounds as carotenoid delivery carriers were discussed, providing new insight into efficient loading and delivery of carotenoids.
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Affiliation(s)
- Yunjun Liu
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen, Fujian, People's Republic of China
| | - Yixiang Liu
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen, Fujian, People's Republic of China
- Collaborative Innovation Center of Provincial and Ministerial Co-construction for Marine Food Deep Processing, Dalian Polytechnic University, Dalian, China
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12
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Ma CM, Zhang N, Zhao XH. Impact of covalent grafting of two flavonols (kaemperol and quercetin) to caseinate on in vitro digestibility and emulsifying properties of the caseinate-flavonol grafts. Food Chem 2022; 390:133210. [PMID: 35580517 DOI: 10.1016/j.foodchem.2022.133210] [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: 09/13/2021] [Revised: 04/21/2022] [Accepted: 05/10/2022] [Indexed: 11/29/2022]
Abstract
Covalent grafting of one of the two flavonols (kaemperol and quercetin) to caseinate was achieved by a reaction between the heat-oxidized flavonols and caseinate at flavonol-lysine molar ratios of 1:100 and 1:200. Grafted caseinate products (GCPs) showed - NH2 content reduction and respective kaemperol and quercetin contents of 1.08-6.13 and 3.23-6.64 mmol/kg protein. Quercetin was more reactive than kaemperol under the same conditions, while long-time flavonol heat and higher flavonol-lysine molar ratio caused greater flavonol-grafting. GCPs subjected to 180-day storage had further flavonol-grafting, -NH2 content decrease, and weak protein crosslinking. GCPs consistently had higher surface hydrophobicity but lower emulsification and digestibility than caseinate, while greater flavonol-grafting caused a remarkable value change. Meanwhile, the Kjeldahl method was more suitable than the UV-absorption method to evaluate protein digestibility, because the grafted flavonols in this case did not interfere with data results. Collectively, the covalent flavonol-grafting of proteins can impact the assayed protein functionalities.
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Affiliation(s)
- Chun-Min Ma
- School of Biology and Food Engineering, Guangdong University of Petrochemical Technology, 525000 Maoming, PR China; College of Food Engineering, Harbin University of Commerce, 150028 Harbin, PR China
| | - Na Zhang
- College of Food Engineering, Harbin University of Commerce, 150028 Harbin, PR China
| | - Xin-Huai Zhao
- School of Biology and Food Engineering, Guangdong University of Petrochemical Technology, 525000 Maoming, PR China; Research Centre of Food Nutrition and Human Healthcare, Guangdong University of Petrochemical Technology, 525000 Maoming, PR China; Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong University of Petrochemical Technology, 525000 Maoming, PR China.
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13
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Consecutive pH-shift and ultrasound treatment modify the physicochemical properties of whey protein isolate. Int Dairy J 2022. [DOI: 10.1016/j.idairyj.2021.105211] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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14
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ZHANG K, SHI Y, ZENG J, GAO H, WANG M. Effect of frozen storage temperature on the protein properties of steamed bread. FOOD SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1590/fst.68622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Keke ZHANG
- Henan Institute of Science and Technology, China
| | - Yingxin SHI
- Liaoning Agricultural Technical College, China
| | - Jie ZENG
- Henan Institute of Science and Technology, China
| | - Haiyan GAO
- Henan Institute of Science and Technology, China
| | - Mengyu WANG
- Henan Institute of Science and Technology, China
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15
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Erem E, Icyer NC, Tatlisu NB, Kilicli M, Kaderoglu GH, Toker ÖS. A new trend among plant-based food ingredients in food processing technology: Aquafaba. Crit Rev Food Sci Nutr 2021:1-18. [PMID: 34761963 DOI: 10.1080/10408398.2021.2002259] [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: 10/19/2022]
Abstract
In the new century, the most fundamental problem on a global scale is hunger and poverty reduction is one of the primary goals set by the United Nations. Currently, it is necessary to increase agricultural activities and to evaluate all agricultural products rich in nutrients without loss in order to feed the hungry population in the world. Considering that one of the most important causes of hunger in the world is inadequate access to protein content, legumes are one of the most valuable nutritional resources. In order to ensure the sustainability of legumes, alternative new ways of recycling their wastes are sought based on these multiple functions. For this purpose, recycling legume cooking waters to be used as food raw materials in various processes means reducing food waste. Recovery of nutritional components in legumes is also beneficial in vegan and vegetarian diets. In this review study, the importance of legumes in terms of global needs, their importance in terms of nutrition, the methods of obtaining the protein content of legumes, the functional properties of these proteins in the field of food processing, the gains of the evaluation and recovery of legume cooking water (Aquafaba), especially waste, were discussed.
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Affiliation(s)
- Erenay Erem
- Department of Food Engineering, Yildiz Technical University, Istanbul, Turkey
| | | | | | - Mahmut Kilicli
- Department of Food Engineering, Yildiz Technical University, Istanbul, Turkey
| | | | - Ömer Said Toker
- Department of Food Engineering, Yildiz Technical University, Istanbul, Turkey
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16
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Padhi S, Sanjukta S, Chourasia R, Labala RK, Singh SP, Rai AK. A Multifunctional Peptide From Bacillus Fermented Soybean for Effective Inhibition of SARS-CoV-2 S1 Receptor Binding Domain and Modulation of Toll Like Receptor 4: A Molecular Docking Study. Front Mol Biosci 2021; 8:636647. [PMID: 33869283 PMCID: PMC8044374 DOI: 10.3389/fmolb.2021.636647] [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: 12/01/2020] [Accepted: 03/05/2021] [Indexed: 12/25/2022] Open
Abstract
Fermented soybean products are traditionally consumed and popular in many Asian countries and the northeastern part of India. To search for potential agents for the interruption of the Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Spike glycoprotein 1 (S1) and human angiotensin-converting enzyme 2 (ACE2) receptor interactions, the in silico antiviral prospective of peptides identified from the proteome of kinema was investigated. Soybean was fermented using Bacillus licheniformis KN1G, Bacillus amyloliquefaciens KN2G and two different strains of Bacillus subtilis (KN2B and KN2M). The peptides were screened in silico for possible antiviral activity using two different web servers (AVPpred and meta-iAVP), and binding interactions of selected 44 peptides were further explored against the receptor-binding domain (RBD) of the S1 protein (PDB ID: 6M0J) by molecular docking using ZDOCK. The results showed that a peptide ALPEEVIQHTFNLKSQ (P13) belonging to B. licheniformis KN1G fermented kinema was able to make contacts with the binding motif of RBD by blocking specific residues designated as critical (GLN493, ASN501) in the binding of human angiotensin-converting enzyme 2 (ACE2) cell receptor. The selected peptide was also observed to have a significant affinity towards human toll like receptor 4 (TLR4)/Myeloid Differentiation factor 2 (MD2) (PDB ID: 3FXI) complex known for its essential role in cytokine storm. The energy properties of the docked complexes were analyzed through the Generalized Born model and Solvent Accessibility method (MM/GBSA) using HawkDock server. The results showed peptidyl amino acids GLU5, GLN8, PHE11, and LEU13 contributed most to P13-RBD binding. Similarly, ARG90, PHE121, LEU61, PHE126, and ILE94 were appeared to be significant in P13-TLR4/MD2 complex. The findings of the study suggest that the peptides from fermented soy prepared using B. licheniformis KN1G have better potential to be used as antiviral agents. The specific peptide ALPEEVIQHTFNLKSQ could be synthesized and used in combination with experimental studies to validate its effect on SARS-CoV-2-hACE2 interaction and modulation of TLR4 activity. Subsequently, the protein hydrolysate comprising these peptides could be used as prophylaxis against viral diseases, including COVID-19.
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Affiliation(s)
- Srichandan Padhi
- Institute of Bioresources and Sustainable Development, Regional Centre, Gangtok, India
| | | | - Rounak Chourasia
- Institute of Bioresources and Sustainable Development, Regional Centre, Gangtok, India
| | | | - Sudhir P. Singh
- Centre of Innovative and Applied Bioprocessing, Mohali, India
| | - Amit K. Rai
- Institute of Bioresources and Sustainable Development, Regional Centre, Gangtok, India
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Hu G, Batool Z, Cai Z, Liu Y, Ma M, Sheng L, Jin Y. Production of self-assembling acylated ovalbumin nanogels as stable delivery vehicles for curcumin. Food Chem 2021; 355:129635. [PMID: 33780798 DOI: 10.1016/j.foodchem.2021.129635] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 02/28/2021] [Accepted: 03/13/2021] [Indexed: 12/22/2022]
Abstract
In this study, we evaluated potential usage of acylated ovalbumin (AOVA) nanogels fabricated via acylation modification and heat-induced self-assembly process as novel delivery systems for curcumin. Compared to native ovalbumin (NOVA) nanogels without chemical acylation, the obtained AOVA nanogels have shown smaller average hydrodynamic diameter (155.73 nm), relatively uniform size distribution (polydispersity index around 0.28), enhanced negative surface charge (-24.3 mV), and an improved stability under the conditions of high ionic strength, different pH and storage time. Moreover, AOVA nanogels exhibited a remarkable conformational change in secondary and tertiary structures, improved surface hydrophobicity, and increased free sulfhydryl content compared with NOVA nanogels. Moreover, curcumin encapsulated in AOVA nanogels displayed higher encapsulation efficiency (93.64%) and slower sustained release under simulated gastrointestinal conditions as compared with NOVA nanogels. Hence, we have suggested that AOVA nanogels successfully fabricated with improved physicochemical properties as a novel ideal carrier for hydrophobic active compounds.
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Affiliation(s)
- Gan Hu
- National Research and Development Center for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Zahra Batool
- National Research and Development Center for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Zhaoxia Cai
- National Research and Development Center for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Yuanyuan Liu
- National Research and Development Center for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Meihu Ma
- National Research and Development Center for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China.
| | - Long Sheng
- National Research and Development Center for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Yongguo Jin
- National Research and Development Center for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
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Xiang N, Wu S, Wei Z, Shao P, Sun P. Characterization of iron reducibility of soy protein amyloid fibrils and their applications in iron fortification. Food Chem 2021; 353:129420. [PMID: 33711705 DOI: 10.1016/j.foodchem.2021.129420] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 12/28/2020] [Accepted: 02/17/2021] [Indexed: 12/22/2022]
Abstract
Iron deficiency is a common nutritional disorder worldwide. Iron fortification of food is an effective strategy to control iron deficiency anemia (IDA), however, traditional iron fortificants usually provoke undesirable organoleptic changes or have limited colloid stability. In this research, we investigated iron reducibility of soy protein amyloid fibrils made from soy protein isolates (SPI), soy β-conglycinin (7S) and soy glycinin (11S), and explored their applications in iron fortification. All three protein fibrils showed iron reducibility. The reducibility was utilized to generate fibril-iron nanoparticle composites. The iron reducibility was affected by fibril concentration, degree of fibrillation and reducing amino acid composition. We identified 11S had the most significant effect on reducing Fe (III) to more bioavailable Fe (II) state, whereas 7S showed the optimal result for generation of iron nanoparticle on fibrils in situ. The resulted fibril-iron nanoparticle hybrids showed high dispersibility in various liquid foods, without distinct color change.
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Affiliation(s)
- Ning Xiang
- College of Food Science and Technology, Zhejiang University of Technology, Zhejiang, Hangzhou 310014, PR China; Key Laboratory of Food Macromolecular Resources Processing Technology Research (Zhejiang University of Technology), China National Light Industry, China
| | - Sihong Wu
- College of Food Science and Technology, Zhejiang University of Technology, Zhejiang, Hangzhou 310014, PR China
| | - Zhengxun Wei
- College of Food Science and Technology, Zhejiang University of Technology, Zhejiang, Hangzhou 310014, PR China
| | - Ping Shao
- College of Food Science and Technology, Zhejiang University of Technology, Zhejiang, Hangzhou 310014, PR China; Key Laboratory of Food Macromolecular Resources Processing Technology Research (Zhejiang University of Technology), China National Light Industry, China
| | - Peilong Sun
- College of Food Science and Technology, Zhejiang University of Technology, Zhejiang, Hangzhou 310014, PR China; Key Laboratory of Food Macromolecular Resources Processing Technology Research (Zhejiang University of Technology), China National Light Industry, China.
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19
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Qazanfarzadeh Z, Kadivar M, Shekarchizadeh H, Porta R. Functional Properties of Rye Prolamin (Secalin) and Their Improvement by Protein Lipophilization through Capric Acid Covalent Binding. Foods 2021; 10:515. [PMID: 33804582 PMCID: PMC7998593 DOI: 10.3390/foods10030515] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 02/22/2021] [Accepted: 02/23/2021] [Indexed: 12/03/2022] Open
Abstract
Secalin (SCL), the prolamin fraction of rye protein, was chemically lipophilized using acylation reaction by treatment with different amounts of capric acid chloride (0, 2, 4, and 6 mmol/g) to enhance its functional properties. It was shown that SCL lipophilization increased the surface hydrophobicity and the hydrophobic interactions, leading to a reduction in protein solubility and water absorption capacity and to a greater oil absorption. In addition, SCL both emulsifying capacity and stability were improved when the protein was treated with low amount of capric acid chloride. Finally, the foaming capacity of SCL markedly increased after its treatment with increasing concentrations of the acylating agent, even though the foam of the modified protein was found to be more stable at the lower level of protein acylation. Technological application of lipophilized SCL as a protein additive in food preparations is suggested.
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Affiliation(s)
- Zeinab Qazanfarzadeh
- Department of Food Science and Technology, College of Agriculture, Isfahan University of Technology, Isfahan 84156-83111, Iran; (Z.Q.); (M.K.); (H.S.)
- Department of Chemical Sciences, University of Naples “Federico II”, Complesso Universitario di Monte Sant’Angelo, 80126 Naples, Italy
| | - Mahdi Kadivar
- Department of Food Science and Technology, College of Agriculture, Isfahan University of Technology, Isfahan 84156-83111, Iran; (Z.Q.); (M.K.); (H.S.)
| | - Hajar Shekarchizadeh
- Department of Food Science and Technology, College of Agriculture, Isfahan University of Technology, Isfahan 84156-83111, Iran; (Z.Q.); (M.K.); (H.S.)
| | - Raffaele Porta
- Department of Chemical Sciences, University of Naples “Federico II”, Complesso Universitario di Monte Sant’Angelo, 80126 Naples, Italy
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20
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Pang Z, Safdar B, Wang Y, Sun M, Liu X. Improvement of tribo-rheological properties of acid soymilk gels by reinforcement of 7S or 11S proteins. Food Hydrocoll 2021. [DOI: 10.1016/j.foodhyd.2020.106173] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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21
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Chourasia R, Padhi S, Chiring Phukon L, Abedin MM, Singh SP, Rai AK. A Potential Peptide From Soy Cheese Produced Using Lactobacillus delbrueckii WS4 for Effective Inhibition of SARS-CoV-2 Main Protease and S1 Glycoprotein. Front Mol Biosci 2020; 7:601753. [PMID: 33363209 PMCID: PMC7759660 DOI: 10.3389/fmolb.2020.601753] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 11/23/2020] [Indexed: 12/12/2022] Open
Abstract
The COVID-19 pandemic caused by novel SARS-CoV-2 has resulted in an unprecedented loss of lives and economy around the world. In this study, search for potential inhibitors against two of the best characterized SARS-CoV-2 drug targets: S1 glycoprotein receptor-binding domain (RBD) and main protease (3CLPro), was carried out using the soy cheese peptides. A total of 1,420 peptides identified from the cheese peptidome produced using Lactobacillus delbrueckii WS4 were screened for antiviral activity by employing the web tools, AVPpred, and meta-iAVP. Molecular docking studies of the selected peptides revealed one potential peptide "KFVPKQPNMIL" that demonstrated strong affinity toward significant amino acid residues responsible for the host cell entry (RBD) and multiplication (3CLpro) of SARS-CoV-2. The peptide was also assessed for its ability to interact with the critical residues of S1 RBD and 3CLpro of other β-coronaviruses. High binding affinity was observed toward critical amino acids of both the targeted proteins in SARS-CoV, MERS-CoV, and HCoV-HKU1. The binding energy of KFVPKQPNMIL against RBD and 3CLpro of the four viruses ranged from -8.45 to -26.8 kcal/mol and -15.22 to -22.85 kcal/mol, respectively. The findings conclude that cheese, produced by using Lb. delbrueckii WS4, could be explored as a prophylactic food for SARS-CoV-2 and related viruses. In addition, the multi-target inhibitor peptide, which effectively inhibited both the viral proteins, could further be used as a terminus a quo for the in vitro and in vivo function against SARS-CoV-2.
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Affiliation(s)
- Rounak Chourasia
- Institute of Bioresources and Sustainable Development (DBT-IBSD), Regional Centre, Sikkim, India
| | - Srichandan Padhi
- Institute of Bioresources and Sustainable Development (DBT-IBSD), Regional Centre, Sikkim, India
| | - Loreni Chiring Phukon
- Institute of Bioresources and Sustainable Development (DBT-IBSD), Regional Centre, Sikkim, India
| | - Md Minhajul Abedin
- Institute of Bioresources and Sustainable Development (DBT-IBSD), Regional Centre, Sikkim, India
| | - Sudhir P. Singh
- Center of Innovative and Applied Bioprocessing (DBT-CIAB), Mohali, India
| | - Amit Kumar Rai
- Institute of Bioresources and Sustainable Development (DBT-IBSD), Regional Centre, Sikkim, India
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22
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Chen C, Zhang C, Zhang R, Ju X, He R, Wang Z. Enzyme-catalyzed acylation improves gel properties of rapeseed protein isolate. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2020; 100:4182-4189. [PMID: 32374035 DOI: 10.1002/jsfa.10457] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 04/21/2020] [Accepted: 05/06/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Although rapeseed protein isolate (RPI) possessed some good functional properties, the use of RPI as an ingredient in the food industry is restricted mainly due to its inferior gelation. The purpose of this study was to improve the heat-induced gel properties of RPI using double processes of acylation and additional transglutaminase catalysis. RESULTS Scanning electron microscopy showed that the gel formed by native RPI exhibited randomly aggregated particulate network structures whereas transglutaminase (TG)-assisted RPI gels significantly improved gelation properties. More importantly, the combined modifications of RPI using TG-assisted acylation can form a gel with unique percolating and small porous structure. Furthermore, TG-catalyzed 5% acylated RPI gel (100 U g-1 , protein basis) exhibited excellent gel properties in terms of gel strength, thermal stability, surface roughness and apparent viscosity compared to non-treated or single modification of RPI gel as determined by texture analyzer, atomic force microscopy and rheometer. Mechanistically, Fourier-transform infrared spectra and gel dissociation test revealed that TG-catalyzed acylation extensively unfolded the hydrophobic and sulfhydryl residues of RPI, in turn, reinforced re-assembly of protein molecules via hydrophobic interactions and disulfide bonds during gel formation. CONCLUSION Combined processes of acylation and additional TG catalysis improved the thermal gelation properties by altering inter- and intra-protein structures. Such sequential processes will provide a promising approach to improve the protein gelation that could be potentially applied in the food industry. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Chong Chen
- College of Food Science and Engineering, Collaborative Innovation Center for Modern Grain Circulation and Safety, Key Laboratory of Grains and Oils Quality Control and Processing, Nanjing University of Finance and Economics, Nanjing, P. R. China
| | - Cheng Zhang
- College of Food Science and Engineering, Collaborative Innovation Center for Modern Grain Circulation and Safety, Key Laboratory of Grains and Oils Quality Control and Processing, Nanjing University of Finance and Economics, Nanjing, P. R. China
| | - Ruixue Zhang
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, P. R. China
| | - Xingrong Ju
- College of Food Science and Engineering, Collaborative Innovation Center for Modern Grain Circulation and Safety, Key Laboratory of Grains and Oils Quality Control and Processing, Nanjing University of Finance and Economics, Nanjing, P. R. China
| | - Rong He
- College of Food Science and Engineering, Collaborative Innovation Center for Modern Grain Circulation and Safety, Key Laboratory of Grains and Oils Quality Control and Processing, Nanjing University of Finance and Economics, Nanjing, P. R. China
| | - Zhigao Wang
- College of Food Science and Engineering, Collaborative Innovation Center for Modern Grain Circulation and Safety, Key Laboratory of Grains and Oils Quality Control and Processing, Nanjing University of Finance and Economics, Nanjing, P. R. China
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23
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Peng LP, Xu YT, Li XT, Tang CH. Improving the emulsification of soy β-conglycinin by alcohol-induced aggregation. Food Hydrocoll 2020. [DOI: 10.1016/j.foodhyd.2019.105307] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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24
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Hydrophobically modified pea proteins: Synthesis, characterization and evaluation as emulsifiers in eggless cake. J FOOD ENG 2019. [DOI: 10.1016/j.jfoodeng.2019.03.005] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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25
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Mendoza-Sánchez LG, Jiménez-Fernández M, Melgar-Lalanne G, Gutiérrez-López GF, Hernández-Arana A, Reyes-Espinosa F, Hernández-Sánchez H. Chemical Lipophilization of Bovine α-Lactalbumin with Saturated Fatty Acyl Residues: Effect on Structure and Functional Properties. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:3256-3265. [PMID: 30811185 DOI: 10.1021/acs.jafc.8b05174] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Bovine α-lactalbumin (α-LA) was chemically modified by the covalent attachment of fatty acid residues of different length (lauroyl, palmitoyl, and stearoyl) to modify its functional and antioxidant properties. Structural changes, functional properties, and antioxidant capacity in the pH interval between 3 and 10 were analyzed. Surface properties were improved. The esterification increased the hydrophobic interactions leading to a reduction in the solubility dependent on the incorporation ratio of the fatty acid residues. Improvement in emulsifying, foaming, and antioxidant properties were observed when the length of the fatty acid chains was short and mostly at a basic pH. With these results in mind, experiments could be conducted for the technological applications of these derivatives in the food, pharmaceutical, and cosmetic industries.
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Affiliation(s)
- Liliana G Mendoza-Sánchez
- Depto. de Ingeniería Bioquímica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional , Unidad Adolfo López Mateos , Av. Wilfrido Massieu esq. Cda. Manuel L. Stampa , CP. 07738 Mexico City , México
| | - Maribel Jiménez-Fernández
- Instituto de Ciencias Básicas , Universidad Veracruzana , Av. Dr. Luis Castelazo Ayala s/n, Col. Industrial Animas , CP. 91190 Xalapa , Veracruz , México
| | - Guiomar Melgar-Lalanne
- Instituto de Ciencias Básicas , Universidad Veracruzana , Av. Dr. Luis Castelazo Ayala s/n, Col. Industrial Animas , CP. 91190 Xalapa , Veracruz , México
| | - Gustavo F Gutiérrez-López
- Depto. de Ingeniería Bioquímica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional , Unidad Adolfo López Mateos , Av. Wilfrido Massieu esq. Cda. Manuel L. Stampa , CP. 07738 Mexico City , México
| | - Andrés Hernández-Arana
- Área de Biofisicoquimica, Depto. de Química , Universidad Autónoma Metropolitana Unidad Iztapalapa , Av. San Rafael Atlixco 186, Col. Vicentina , CP. 09340 Mexico City , México
| | - Francisco Reyes-Espinosa
- Área de Biofisicoquimica, Depto. de Química , Universidad Autónoma Metropolitana Unidad Iztapalapa , Av. San Rafael Atlixco 186, Col. Vicentina , CP. 09340 Mexico City , México
| | - Humberto Hernández-Sánchez
- Depto. de Ingeniería Bioquímica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional , Unidad Adolfo López Mateos , Av. Wilfrido Massieu esq. Cda. Manuel L. Stampa , CP. 07738 Mexico City , México
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26
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Wang Z, Zhang RX, Zhang C, Dai C, Ju X, He R. Fabrication of Stable and Self-Assembling Rapeseed Protein Nanogel for Hydrophobic Curcumin Delivery. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:887-894. [PMID: 30608682 DOI: 10.1021/acs.jafc.8b05572] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Food-dervied biopolymer nanogels have recently received considerable attention as favorable carrier systems for nutraceuticals and drugs. In the present study, new biocompatible and self-assembled acylated rapeseed protein isolate (ARPI)-based nanogels were fabricated for potential hydrophobic drug delivery by chemical acylation and heat-induced protein denaturation. The effects of the ARPI concentration, pH, heat temperature, and heat time on the physiochemical properties of self-assembled ARPI nanogels were investigated. The optimized ARPI nanogels were characterized by a hydrodiameter of 170 nm in size, spherical morphology, and light core-dark shell structure. In comparison to native rapeseed protein isolates and ARPI without the heat treatment, ARPI nanogels as a result of dual acylation and heat processes exhibited significantly altered spatial secondary and tertiary structures, increased surface hydrophobicity, and decreased free sulfhydryl contents of the protein. Such properties endow amphilic ARPI with the self-aggregating ability, resulting in the hydrophobic core with formations of covalent disulfide bonds and the hydrophilic shell with succinyl moieties exposed to the water side. Such a cross-linked structure allowed for ARPI nanogels to be resistant against a broad array of pH and ionic strength as well as lyophilization and dilution. ARPI nanogels demonstrated 95% encapsulation efficiency of hydrophobic compound curcumin and significantly increased its anticancer activity against multiple cancer cell lines.
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Affiliation(s)
- Zhigao Wang
- School of Food Science and Technology , Jiangnan University , Wuxi , Jiangsu 214122 People's Republic of China
| | - Rui Xue Zhang
- School of Life Sciences , Northwestern Polytechnical University , Xi'an , Shaanxi 710072 , People's Republic of China
| | - Cheng Zhang
- Key Laboratory of Grains and Oils Quality Control and Processing, College of Food Science and Engineering , Nanjing University of Finance and Economics , Nanjing , Jiangsu 210003 , People's Republic of China
| | - Caixia Dai
- Key Laboratory of Grains and Oils Quality Control and Processing, College of Food Science and Engineering , Nanjing University of Finance and Economics , Nanjing , Jiangsu 210003 , People's Republic of China
| | - Xingrong Ju
- School of Food Science and Technology , Jiangnan University , Wuxi , Jiangsu 214122 People's Republic of China
- Key Laboratory of Grains and Oils Quality Control and Processing, College of Food Science and Engineering , Nanjing University of Finance and Economics , Nanjing , Jiangsu 210003 , People's Republic of China
| | - Rong He
- Key Laboratory of Grains and Oils Quality Control and Processing, College of Food Science and Engineering , Nanjing University of Finance and Economics , Nanjing , Jiangsu 210003 , People's Republic of China
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Zhu X, Li Y, Yang G, Lv M, Zhang L. Covalent immobilization of alkaline proteinase on amino‐functionalized magnetic nanoparticles and application in soy protein hydrolysis. Biotechnol Prog 2018; 35:e2756. [DOI: 10.1002/btpr.2756] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 11/10/2018] [Accepted: 11/20/2018] [Indexed: 01/03/2023]
Affiliation(s)
- Xinjun Zhu
- Shandong Province Collegial Key Laboratory of Exploitation and Utilization of Functional Biological ResourcesDezhou University Dezhou P.R. China
| | - Ying Li
- Shandong Province Collegial Key Laboratory of Exploitation and Utilization of Functional Biological ResourcesDezhou University Dezhou P.R. China
| | - Guang Yang
- Animal Husbandry and Veterinary Bureau Binzhou P.R. China
| | - Min Lv
- Shandong Province Collegial Key Laboratory of Exploitation and Utilization of Functional Biological ResourcesDezhou University Dezhou P.R. China
| | - Lianying Zhang
- Shandong Province Collegial Key Laboratory of Exploitation and Utilization of Functional Biological ResourcesDezhou University Dezhou P.R. China
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Tao F, Jiang H, Chen W, Zhang Y, Pan J, Jiang J, Jia Z. Covalent modification of soy protein isolate by (-)-epigallocatechin-3-gallate: effects on structural and emulsifying properties. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2018; 98:5683-5689. [PMID: 29736983 DOI: 10.1002/jsfa.9114] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 04/17/2018] [Accepted: 04/30/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND Soy protein isolate (SPI) has promising applications in various food products because of its excellent functional properties and nutritional quality. The structural and emulsifying properties of covalently modified SPI by (-)-epigallocatechin-3-gallate (EGCG) were investigated. RESULTS SPI was covalently modified by EGCG under alkaline conditions. SDS-PAGE analysis revealed that EGCG modification caused crosslinking of SPI proteins. Circular dichroism spectra demonstrated that the secondary structure of SPI proteins was changed by EGCG modification. In addition, the modifications resulted in the perturbation of the tertiary structure of SPI as evidenced by intrinsic fluorescence spectra and surface hydrophobicity measurements. Oil-in-water emulsions of modified SPI had smaller droplet sizes and better creaming stability compared to those from unmodified SPI. CONCLUSION The covalent modification by EGCG improved the emulsifying property of SPI. This study therefore provided an innovative approach for improving the emulsifying properties of proteins. © 2018 Society of Chemical Industry.
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Affiliation(s)
- Fei Tao
- College of Standardization, China Jiliang University, Hangzhou, China
| | - He Jiang
- Center for Food Safety & Quality, Hangzhou Institute for Food and Drug Control, Hangzhou, China
| | - Wenwei Chen
- Key Laboratory of Marine Food Quality and Hazard Controlling Technology of Zhejiang Province, China Jiliang University, Hangzhou, China
| | - Yongyong Zhang
- Key Laboratory of Marine Food Quality and Hazard Controlling Technology of Zhejiang Province, China Jiliang University, Hangzhou, China
| | - Jiarong Pan
- Key Laboratory of Marine Food Quality and Hazard Controlling Technology of Zhejiang Province, China Jiliang University, Hangzhou, China
| | - Jiaxin Jiang
- Key Laboratory of Marine Food Quality and Hazard Controlling Technology of Zhejiang Province, China Jiliang University, Hangzhou, China
| | - Zhenbao Jia
- Key Laboratory of Marine Food Quality and Hazard Controlling Technology of Zhejiang Province, China Jiliang University, Hangzhou, China
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29
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Preparation of casein non-phosphopeptide–soybean polypeptide complex, its structure and emulsifying properties’ evaluation. Eur Food Res Technol 2018. [DOI: 10.1007/s00217-018-3167-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Wang Z, Zhang C, Zhang T, Ju X, He R. Effects of acylation and glycation treatments on physicochemical and gelation properties of rapeseed protein isolate. RSC Adv 2018; 8:40395-40406. [PMID: 35558250 PMCID: PMC9091480 DOI: 10.1039/c8ra07912a] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2018] [Accepted: 11/20/2018] [Indexed: 11/30/2022] Open
Abstract
The aim of this study was to improve the gelation property of rapeseed protein isolates (RPI) by means of acylation and glycation. The results showed that acylation and glycation within RPI occurred at Lys, and Lys, Met, Ile, Leu and Pro, respectively. Acylation and glycation both increased the surface hydrophobicity (So) and molecular weight of RPI, and decreased the free sulfhydryl (SH) content of RPI, while acylation resulted in a lower change of So and SH. The conformational structure of modified RPIs was changed, and acylated RPI (acylation degree, 38 ± 0.2%) possessed the highest ordered structure content among the modified RPIs. The thermal stability of the protein was improved after either acylation or glycation treatments. Furthermore, native RPI with moderate modification (low degree of acylation, 38 ± 0.2%) showed an overall improvement in the gelation and gel properties as evidenced by the reduced least gelation concentration and surface roughness, increased water-holding capacity, and better textural properties. Acylated and glycated RPI gels were prepared, but the moderate acylation was more favorable to improve the gelation property of RPI.![]()
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Affiliation(s)
- Zhigao Wang
- School of Food Science and Technology
- Jiangnan University
- Wuxi
- 214122 People's Republic of China
| | - Cheng Zhang
- College of Food Science and Engineering
- Collaborative Innovation Center for Modern Grain Circulation and Safety
- Key Laboratory of Grains and Oils Quality Control and Processing
- Nanjing University of Finance and Economics
- Nanjing
| | - Tian Zhang
- Advanced Pharmaceutics and Drug Delivery Laboratory
- Leslie Dan Faculty of Pharmacy
- University of Toronto
- Toronto
- Canada
| | - Xingrong Ju
- School of Food Science and Technology
- Jiangnan University
- Wuxi
- 214122 People's Republic of China
- College of Food Science and Engineering
| | - Rong He
- College of Food Science and Engineering
- Collaborative Innovation Center for Modern Grain Circulation and Safety
- Key Laboratory of Grains and Oils Quality Control and Processing
- Nanjing University of Finance and Economics
- Nanjing
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Modification of proteins and polysaccharides using dodecenyl succinic anhydride: Synthesis, properties and applications-A review. Int J Biol Macromol 2017; 107:2224-2233. [PMID: 29051094 DOI: 10.1016/j.ijbiomac.2017.10.099] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 10/13/2017] [Accepted: 10/15/2017] [Indexed: 11/21/2022]
Abstract
Proteins and polysaccharides are among the biopolymers produced by living organisms for their structural integrity, protection, physiological functions, or as reserve energy. These biopolymers are extracted from their natural matrices by humans to fulfil basic as well as convenience needs. The inquisitive human nature, ever-growing demands and resources at disposal have led to copious research in the field of biopolymer modifications. The availability of reactive sites on these biopolymers make them suitable substrates for esterification, etherification, oxidation, epoxidation, N-acylation, alkylation, etc. Dodecenyl succinic anhydride (DDSA) is an esterifying agent that introduces a 12-carbon hydrophobic chain in the structure of the substrate containing suitable reactive sites. The use of DDSA as a modifying agent for biopolymers dates back to the mid-twentieth century. Even today, many biopolymers are explored for modification with DDSA for improved functionality. These modifications are aimed at catering the needs of the paint, pharmaceutical, cosmetic, food and textile industries. This review attempts to systematically compile reported research on the use of DDSA as a biopolymer modifying agent, the various reaction techniques, properties and applications thereof.
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Lin D, Lu W, Kelly AL, Zhang L, Zheng B, Miao S. Interactions of vegetable proteins with other polymers: Structure-function relationships and applications in the food industry. Trends Food Sci Technol 2017. [DOI: 10.1016/j.tifs.2017.08.006] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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33
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Wang J, Tan Y, Xu H, Niu S, Yu J. Effect of 2,2-azobis (2-amidinopropane) dihydrochloride oxidized casein on the microstructure and microrheology properties of emulsions. Food Sci Biotechnol 2016; 25:1283-1290. [PMID: 30263406 DOI: 10.1007/s10068-016-0202-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Revised: 07/18/2016] [Accepted: 07/26/2016] [Indexed: 02/07/2023] Open
Abstract
The impacts of protein oxidation on the droplet size and microrheology properties of casein emulsions with 20% oil content were investigated. The degree of protein oxidation was indicated by carbonyl concentration. The droplets in the emulsions of different-oxidation-degree casein had bimodal distribution, but their size altered due to oxidation. The effects of protein oxidation on the morphology, motion type, viscoelasticity, and stability of droplets were also investigated by microrheology analysis. The droplet motion was blocked by protein oxidation due to mean square displacement slope results. Solid-liquid balance values provided the liquid behavior dominating these emulsions. Oxidation of carbonyl concentration 16.72 raised the primary droplets, increased the elasticity, decreased the viscosity, and promoted the droplet motion rate, resulting in better stability of emulsions. Further oxidation promoted the aggregation of droplets and resulted in poor stability.
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Affiliation(s)
- Jianming Wang
- 1Key Laboratory of Food Nutrition and Safety (Tianjin University of Science & Technology), Ministry of Education, Tianjin, 300457 China
| | - Yaoyao Tan
- 1Key Laboratory of Food Nutrition and Safety (Tianjin University of Science & Technology), Ministry of Education, Tianjin, 300457 China
| | - Hui Xu
- 2College of Food Engineering and Biotechnology, Tianjin University of Science & Technology, Tianjin, 300457 China
| | - Sisi Niu
- 1Key Laboratory of Food Nutrition and Safety (Tianjin University of Science & Technology), Ministry of Education, Tianjin, 300457 China
- 2College of Food Engineering and Biotechnology, Tianjin University of Science & Technology, Tianjin, 300457 China
| | - Jinghua Yu
- 1Key Laboratory of Food Nutrition and Safety (Tianjin University of Science & Technology), Ministry of Education, Tianjin, 300457 China
- 2College of Food Engineering and Biotechnology, Tianjin University of Science & Technology, Tianjin, 300457 China
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Effect of maleylation on physicochemical and functional properties of rapeseed protein isolate. Journal of Food Science and Technology 2016; 53:1784-97. [PMID: 27413206 DOI: 10.1007/s13197-016-2197-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 02/27/2016] [Accepted: 03/08/2016] [Indexed: 10/21/2022]
Abstract
Influence of maleylation on the physicochemical and functional properties of rapeseed protein isolate was studied. Acylation increased whiteness value and dissociation of proteins, but reduced free sulfhydryl and disulfide content (p < 0.05). Intrinsic fluorescence emission and FTIR spectra revealed distinct perturbations in maleylated proteins' tertiary and secondary conformations. Increase in surface hydrophobicity, foaming capacity, emulsion stability, protein surface load at oil-water interface and decrease in surface tension at air-water interface, occurred till moderate level of modification. While maleylation impaired foam stability, protein solubility and emulsion capacity were markedly ameliorated (p < 0.05), which are concomitant with decreased droplet size distribution (d 32). In-vitro digestibility and cytotoxicity tests suggested no severe ill-effects of modified proteins, especially up to low degrees of maleylation. The study shows good potential for maleylated rapeseed proteins as functional food ingredient.
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35
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Influence of succinylation on the conformation of yak casein micelles. Food Chem 2015; 179:246-52. [DOI: 10.1016/j.foodchem.2015.02.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2014] [Revised: 01/30/2015] [Accepted: 02/02/2015] [Indexed: 11/20/2022]
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36
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Yang M, Shi Y, Liang Q. Effect of microbial transglutaminase crosslinking on the functional properties of yak caseins: a comparison with cow caseins. ACTA ACUST UNITED AC 2015. [DOI: 10.1007/s13594-015-0236-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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37
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Wang Z, Ju X, He R, Yuan J, Wang L. The Effect of Rapeseed Protein Structural Modification on Microstructural Properties of Peptide Microcapsules. FOOD BIOPROCESS TECH 2015. [DOI: 10.1007/s11947-015-1472-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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38
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Nesterenko A, Alric I, Violleau F, Silvestre F, Durrieu V. The effect of vegetable protein modifications on the microencapsulation process. Food Hydrocoll 2014. [DOI: 10.1016/j.foodhyd.2014.03.017] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Arboleda JC, Rojas OJ, Lucia LA. Acid-Generated Soy Protein Hydrolysates and Their Interfacial Behavior on Model Surfaces. Biomacromolecules 2014; 15:4336-42. [DOI: 10.1021/bm501344j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Julio C. Arboleda
- Department
of Forest Biomaterials, North Carolina State University, Raleigh, North Carolina 27695-8005, United States
| | - Orlando J. Rojas
- Department
of Forest Biomaterials, North Carolina State University, Raleigh, North Carolina 27695-8005, United States
- Department
of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina 27695-7905, United States
- School
of Chemical Technology, Department of Forest Products Technology, Aalto University, P.O. Box 16300, 00076, Aalto, Finland
| | - Lucian A. Lucia
- Department
of Forest Biomaterials, North Carolina State University, Raleigh, North Carolina 27695-8005, United States
- Key
Laboratory of Pulp and Paper Science and Technology of the Ministry
of Education, Qilu University of Technology, Jinan, 250353, People’s Republic of China
- Department
of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204, United States
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Effect of succinylation on the functional properties of yak caseins: a comparison with cow caseins. ACTA ACUST UNITED AC 2014. [DOI: 10.1007/s13594-014-0168-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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43
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Nesterenko A, Alric I, Violleau F, Silvestre F, Durrieu V. A new way of valorizing biomaterials: The use of sunflower protein for α-tocopherol microencapsulation. Food Res Int 2013. [DOI: 10.1016/j.foodres.2013.04.020] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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44
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Nesterenko A, Alric I, Silvestre F, Durrieu V. Influence of soy protein's structural modifications on their microencapsulation properties: α-Tocopherol microparticle preparation. Food Res Int 2012. [DOI: 10.1016/j.foodres.2012.04.023] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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45
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Matemu AO, Katayama S, Kayahara H, Murasawa H, Nakamura S. Improving Surface Functional Properties of Tofu Whey-Derived Peptides by Chemical Modification with Fatty Acids. J Food Sci 2012; 77:C333-9. [DOI: 10.1111/j.1750-3841.2012.02631.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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46
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Huang XF, Li MX, Lu LJ, Yang S, Liu J. Relationship of cell-wall bound fatty acids and the demulsification efficiency of demulsifying bacteria Alcaligenes sp. S-XJ-1 cultured with vegetable oils. BIORESOURCE TECHNOLOGY 2012; 104:530-536. [PMID: 22093975 DOI: 10.1016/j.biortech.2011.10.034] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2011] [Revised: 10/08/2011] [Accepted: 10/10/2011] [Indexed: 05/31/2023]
Abstract
Considering that the surface properties of demulsifying cells correlate with their demulsification efficiency, the demulsifying bacteria Alcaligenes sp. S-XJ-1 with various surface properties were obtained using different vegetable oils as carbon sources. The results show that better performance was achieved with demulsifying bacteria S-XJ-1 possessing a relatively high cell surface hydrophobicity (CSH) and total unsaturated degree for the cell-wall bound fatty acids. There also appeared to be a correlation between the specific cell-wall bound fatty acid components of the bacteria, in terms of carbon chain length or degree of unsaturation, and either CSH or demulsification efficiency. The fatty acids attached to the cell wall were mainly composed of palmitic acid (C16:0), stearic acid (C18:0), oleic acid (C18:1), linoleic acid (C18:2) and linolenic acid (C18:3). C18:1 and C18:2 had a positive effect on the formation of CSH, while C18:0 and C18:3 had the opposite effect.
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Affiliation(s)
- Xiang-Feng Huang
- College of Environmental Science and Engineering, State Key Laboratory of Pollution Control and Resources Reuse, Tongji University, Shanghai 200092, PR China
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Matemu AO, Nakamura K, Kayahara H, Murasawa H, Katayama S, Nakamura S. Enhanced antiviral activity of soybean β-conglycinin-derived peptides by acylation with saturated fatty acids. J Food Sci 2011; 76:M299-304. [PMID: 22417502 DOI: 10.1111/j.1750-3841.2011.02248.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Peptide mixtures prepared from soybean β-conglycinin (7S-peptides) were acylated with saturated fatty acids of different chain length (6C-18C) in order to improve their antiviral activity against Feline calicivirus (FCV) strain F9 which is a typical norovirus surrogate. Among the fatty acids varieties, it was revealed that 7S-peptides acylated with myristic and palmitic acids potently inhibited FCV replication. Myristorylation and palmitoylation of 7S-peptides kept host cells viability at 91.51% and 98.90%, respectively. The infectivity of FCV on Crandell-Reese feline kidney cells was further determined after exposure of initial titer of 10(6.47) TCID₅₀/mL. Myristoylated and palmitoylated 7S-peptides significantly (P < 0.006) reduced FCV infectivity as compared to native 7S-peptides. Native 7S-peptides showed 25% FCV inhibitory activity while myristoylated and palmitoylated 7S-peptides exhibited 98.59% and 99.98% reduction in FCV infectivity, respectively. Myristoylated and palmitoylated 7S-peptides demonstrated higher anti-FCV activity in a wide range of concentration with complete reduction at 25 μg/mL. Surface hydrophobicity was significantly (P < 0.05) increased after attachment of long hydrocarbon fatty acids to 7S-peptides as supported by changes in fluorescence intensity. Enzymatic hydrolysis together with acylation will give an insight into surface and physiological functional lipopeptides derived from soy β-conglycinin.
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Affiliation(s)
- Athanasia O Matemu
- Dept. of Bioscience and Biotechnology, Shinshu Univ., 8304 Minamiminowamura, Nagano 399-4598, Japan
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