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Zhang R, Corstens M, Luo Z, Cao J, Schroen K. Effect of pH on the emulsifying performance of protein-polysaccharide complexes. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024. [PMID: 38767462 DOI: 10.1002/jsfa.13601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 02/23/2024] [Accepted: 03/18/2024] [Indexed: 05/22/2024]
Abstract
BACKGROUND Protein-polysaccharide complexes have been successfully used for emulsion stabilization. However, it is unclear how the complex's surface charge influences aggregation stability and coalescence stability of emulsions, and whether a low charged interfacial film can still maintain the coalescence stability of oil droplets. In the present study, the effects of pH (around the pI of protein) on the aggregation and coalescence stability of emulsions were investigated. RESULTS Whey protein isolate (WPI) and peach gum polysaccharides (PGP) complexes (WPI-PGP complexes) were synthesized at pH 3, 4 and 5. Their sizes were 598, 274 and 183 nm, respectively, and their ζ-potentials were +2.9, -8.6 and -22.8 mV, respectively. Interface rheological experiments showed that WPI-PGP complex at pH 3 had the lowest interfacial tension, and formed the softest film compared to the complexes at pH 4 and 5. Microfluidic experiments showed that all WPI-PGP complexes were able to stabilize droplets against coalescence within short timescales (milliseconds). At pH 3, no coalescence was observed even under conditions where the continuous phase flow influenced the shape of oil droplets (from spheres to ellipsoids). At pH 4 and 5, the model emulsions were stable over 16 days of storage, extensive aggregation and creaming occurred at pH 3 after 8 days. Importantly, no coalescence took place. CONCLUSION The present study confirmed that the aggregation stability of the emulsions was mainly determined by the surface charge of the complex, whereas the coalescence stability of emulsions is expectedly determined by steric repulsion, providing new insights into how to prepare stable food emulsions. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Ruyuan Zhang
- College of Biological Chemical Sciences and Engineering, Jiaxing University, Jiaxing, China
- Department of Agrotechnology and Food, Laboratory of Food Process Engineering, Wageningen University, Wageningen, The Netherlands
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
| | - Meinou Corstens
- Department of Agrotechnology and Food, Laboratory of Food Process Engineering, Wageningen University, Wageningen, The Netherlands
| | - Zisheng Luo
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
| | - Jiarui Cao
- Department of Agrotechnology and Food, Laboratory of Food Process Engineering, Wageningen University, Wageningen, The Netherlands
| | - Karin Schroen
- Department of Agrotechnology and Food, Laboratory of Food Process Engineering, Wageningen University, Wageningen, The Netherlands
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2
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Zhang C, Chen L, Teng H. Phase behavior of the gelation process of myofibrillar protein-curdlan blended system: Discussion based on rheology and gel properties. Food Chem 2024; 437:137839. [PMID: 37948797 DOI: 10.1016/j.foodchem.2023.137839] [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: 06/30/2023] [Revised: 10/07/2023] [Accepted: 10/21/2023] [Indexed: 11/12/2023]
Abstract
The phase behavior in protein-polysaccharide blended systems is the main factor affecting the physical properties of composite gels; however, the phase behavior at room temperature and during heated gelation is lacking discussion. In this research, extracted grouper myofibrillar protein (MP) and curdlan (CUR) were used as models for the MP-CUR blended system. The phase behavior of the MP-CUR blended system was analyzed using rheology and microstructure analysis, and the accuracy of the phase behavior analysis was verified by measuring the physical indices such as gel properties of the MP-CUR composite gels. At room temperature, MP and CUR showed good co-solubility, so the blended system with 0.8% CUR content obtained the best apparent viscosity, structural recoverability, and other rheological properties. After heating gelation, MP and CUR had strong thermodynamic unaffinity leading to phase separation, and the best storage modulus was obtained for the MP-CUR blended system with 0.6% CUR content. Therefore, it is concluded that 0.6% CUR content is the critical concentration for the MP-CUR blended system. The results were also confirmed by the best gel properties of 0.6% CUR composite gel when the physical properties of the composite gel were determined. The phase behavior evaluation was used to determine the appropriate polysaccharide concentrations as a means to improve the physicochemical properties of the composite gels and to exploit the value of polysaccharides in protein-based food applications.
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Affiliation(s)
- Chang Zhang
- College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Province Engineering Laboratory for Marine Biological Products, Guangdong Provincial Engineering Technology Research Center of Seafood, Key Laboratory of Advanced Processing of Aquatic Product of Guangdong Higher Education Institution, Zhanjiang 524088, China
| | - Lei Chen
- College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Province Engineering Laboratory for Marine Biological Products, Guangdong Provincial Engineering Technology Research Center of Seafood, Key Laboratory of Advanced Processing of Aquatic Product of Guangdong Higher Education Institution, Zhanjiang 524088, China; Hunan GaoGe Dairy Co., Ltd, Changsha, Hunan, China
| | - Hui Teng
- College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Province Engineering Laboratory for Marine Biological Products, Guangdong Provincial Engineering Technology Research Center of Seafood, Key Laboratory of Advanced Processing of Aquatic Product of Guangdong Higher Education Institution, Zhanjiang 524088, China.
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3
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Wan XY, Pan YP, Shu M, Geng JT, Wu GP, Zhong C. Paramyosin from field snail (Bellamya quadrata): Structural characteristics and its contribution to enhanced the gel properties of myofibrillar protein. Int J Biol Macromol 2024; 262:130097. [PMID: 38342265 DOI: 10.1016/j.ijbiomac.2024.130097] [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: 01/30/2024] [Accepted: 02/08/2024] [Indexed: 02/13/2024]
Abstract
To assess the blending effect of field snails with grass carp muscle, the effects of paramyosin (PM) and actomyosin (AM) with different mixture ratios on the gel properties of the binary blend system were investigated in our work. The purified PM from field snail muscle was about 95 kDa on SDS-PAGE. Its main secondary structure was α-helix, which reached to 97.97 %. When the amount of PM increased in the binary blend system, their rheological indices and gel strength were improved. The water holding capacity (WHC) increased to 86.30 % at a mixture ratio of 2:8. However, the WHC and the area of immobile water (P22) dramatically decreased, and the area of free water (P23) increased when the mixture ratio exceeded 4:6. The low level of PM in binary blend system promoted the formation of a homogenous and dense gel network through non-covalent interactions as observed results of SEM and FTIR. When there were redundant PM molecules, the development of heterostructure via hydrophobic interaction of tail-tail contributed to the reduced gel properties of the binary blend system. These findings provided new insight into the binary blend system of PM and AM with different ratios to change the gel properties of myofibrillar protein.
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Affiliation(s)
- Xuan-Ying Wan
- College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 30045, China
| | - Yu-Ping Pan
- College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 30045, China
| | - Mei Shu
- College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 30045, China
| | - Jie-Ting Geng
- Department of Food Science and Technology, Tokyo University of Marine Science and Technology, Konan, Minato-ku, Tokyo 108-8477, Japan
| | - Guo-Ping Wu
- College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 30045, China.
| | - Chan Zhong
- College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 30045, China.
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4
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Lang Y, Wang M, Zhou S, Han D, Xie P, Li C, Yang X. Fabrication, characterization and emulsifying properties of myofibrillar protein-chitosan complexes in acidic conditions. Int J Biol Macromol 2024; 262:130000. [PMID: 38331058 DOI: 10.1016/j.ijbiomac.2024.130000] [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: 06/09/2023] [Revised: 01/30/2024] [Accepted: 02/04/2024] [Indexed: 02/10/2024]
Abstract
Polysaccharides are employed to modify proteins, forming complexes that enhance the functional properties of proteins, such as emulsification and stability. In this study, myofibrillar protein (MP)-chitosan (CS) complexes were formed between CS and MP under acidic conditions (pH 3.0-6.0). Results showed that CS can improve the solubility and emulsifying properties of MP, and the MP-CS complexes at pH 3.0 and 6.0 had better emulsifying properties. Concurrently, the particle size results indicated that better the emulsifying properties of the complex, the smaller the particle size. Consequently, the characteristics of the MP-CS complexes (at pH 3.0 and 6.0) were investigated. Our analysis using Fourier transform infrared spectroscopy revealed that the amide I band of MP was blue-shifted with the addition of CS, signifying a decrease in hydrogen bonding within MP. The endogenous fluorescence spectra showcased that the hydrophobicity surrounding the tryptophan residues in the protein changed, leading to enhanced polarity. Thermogravimetric analysis and differential scanning calorimetry further confirmed that the addition of CS improved the thermal stability of MP. These findings provide valuable insights into the interactions between MP and CS. Furthermore, the MP-CS complex can be leveraged to create a Pickering emulsion system for the efficient delivery of bioactive substances.
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Affiliation(s)
- Yumiao Lang
- Hebei Key Laboratory of Public Health Safety, College of Public Health, Hebei University, No. 180 Wusidong Road, Baoding 071002, China.
| | - Mingru Wang
- Hebei Key Laboratory of Public Health Safety, College of Public Health, Hebei University, No. 180 Wusidong Road, Baoding 071002, China
| | - Shasha Zhou
- Hebei Key Laboratory of Public Health Safety, College of Public Health, Hebei University, No. 180 Wusidong Road, Baoding 071002, China
| | - Dandan Han
- Hebei Key Laboratory of Public Health Safety, College of Public Health, Hebei University, No. 180 Wusidong Road, Baoding 071002, China
| | - Peng Xie
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan West Road, Beijing 100080, China
| | - Cuiping Li
- Hebei Key Laboratory of Public Health Safety, College of Public Health, Hebei University, No. 180 Wusidong Road, Baoding 071002, China
| | - Xiaoxi Yang
- Hebei Key Laboratory of Public Health Safety, College of Public Health, Hebei University, No. 180 Wusidong Road, Baoding 071002, China.
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5
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Huang M, Xu Y, Chen X, Xu L, Bai Y, Xu X, Zeng X. Improved emulsifying properties of water-soluble myofibrillar proteins at acidic pH conditions: Emphasizing pH-regulated electrostatic interactions with chitosan. Int J Biol Macromol 2024; 257:128557. [PMID: 38056743 DOI: 10.1016/j.ijbiomac.2023.128557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 11/13/2023] [Accepted: 11/30/2023] [Indexed: 12/08/2023]
Abstract
Water-soluble muscle protein with enhanced functionalities has attracted great interest for low-salt food design. Electrostatic interactions of chitosan (CS) with myofibrillar proteins (MP) in water-aqueous solution at acidic pHs (4.0-6.5) were investigated, and how pH regulated complex formation, microstructures, conformation changes, and emulsifying capacity was systematically explored. At pH 4.0-4.5, MP and CS were positively charged and displayed a co-soluble system, exhibiting small particles and high solubility. When the pH increased to near the isoelectric point (pI) of MP (pH 5.0-6.0), electrostatic interactions largely inhibited the aggregation of MP by forming smaller particle complexes. The flexible structures and improved amphiphilic properties promoted protein absorption at the oil-water interface, further improving the emulsion stability. When the pH increased to 6.5, large aggregates were formed causing poor functionalities. This study could provide great insights to further exploit meat-protein-based low-salt functional foods in novel food design.
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Affiliation(s)
- Mingyuan Huang
- State Key Laboratory of Meat Quality Control and Cultured Meat Development; National Center of Meat Quality and Safety Control; Jiangsu Collaborative Innovation Center of Meat Production and Processing, Quality and Safety Control; College of Food Science and technology; Nanjing Agricultural University, Nanjing 210095, PR China
| | - Yujuan Xu
- State Key Laboratory of Meat Quality Control and Cultured Meat Development; National Center of Meat Quality and Safety Control; Jiangsu Collaborative Innovation Center of Meat Production and Processing, Quality and Safety Control; College of Food Science and technology; Nanjing Agricultural University, Nanjing 210095, PR China; School of Food and Biological Engineering, Hefei University of Technology, Hefei 230601, PR China
| | - Xing Chen
- State Key Laboratory of Food Science and Resources, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, PR China
| | - Lina Xu
- State Key Laboratory of Meat Quality Control and Cultured Meat Development; National Center of Meat Quality and Safety Control; Jiangsu Collaborative Innovation Center of Meat Production and Processing, Quality and Safety Control; College of Food Science and technology; Nanjing Agricultural University, Nanjing 210095, PR China
| | - Yun Bai
- State Key Laboratory of Meat Quality Control and Cultured Meat Development; National Center of Meat Quality and Safety Control; Jiangsu Collaborative Innovation Center of Meat Production and Processing, Quality and Safety Control; College of Food Science and technology; Nanjing Agricultural University, Nanjing 210095, PR China
| | - Xinglian Xu
- State Key Laboratory of Meat Quality Control and Cultured Meat Development; National Center of Meat Quality and Safety Control; Jiangsu Collaborative Innovation Center of Meat Production and Processing, Quality and Safety Control; College of Food Science and technology; Nanjing Agricultural University, Nanjing 210095, PR China.
| | - Xianming Zeng
- State Key Laboratory of Meat Quality Control and Cultured Meat Development; National Center of Meat Quality and Safety Control; Jiangsu Collaborative Innovation Center of Meat Production and Processing, Quality and Safety Control; College of Food Science and technology; Nanjing Agricultural University, Nanjing 210095, PR China
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6
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Zhang Q, Sun P, Xu Z, Qu W, Zhang Y, Sui X. Chitin nanocrystals as natural gel modifier for yielding stronger acid-induced soy protein isolate gel. Carbohydr Polym 2024; 323:121446. [PMID: 37940308 DOI: 10.1016/j.carbpol.2023.121446] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 09/26/2023] [Accepted: 09/27/2023] [Indexed: 11/10/2023]
Abstract
This study aimed to enhance the rheological properties and thermal stability of acid-induced soy protein isolate (SPI) gels by incorporating chitin nanocrystals (ChNCs) and proposing a gelation mechanism. SPI gels exhibited pseudo-plastic behavior. Increasing ChNCs concentration from 0.00 % to 1.00 % improved G' values, recovery rate, and initial degradation temperature: from 75.6 Pa to 1024.3 Pa, 80.27 % to 85.47 %, and 261.5 °C to 275.8 °C, respectively. FTIR analysis confirmed electrostatic and hydrogen bonding interactions between SPI and ChNCs. Adding 1.00 % ChNCs reduced α-helix content from 19.7 % to 12.1 % while increasing β-sheet content from 46.5 % to 52.6 %. This led to protein unfolding, exposure of Trp residues, and orderly aggregation, forming a dense cross-linked gel network. Gel particle size increased from 185.5 nm (no ChNCs) to 504.4 nm (1.00 % ChNCs), with reduced surface charges. Hydrophobic and electrostatic interactions were key forces stabilizing SPI-ChNCs gels. These findings offer a practical approach to enhancing traditional acid-induced protein gel-based functional foods using naturally sourced chitin nanocrystals.
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Affiliation(s)
- Qin Zhang
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Ping Sun
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Zejian Xu
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Wenwen Qu
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Yan Zhang
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Xiaonan Sui
- College of Food Science, Northeast Agricultural University, Harbin 150030, China.
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7
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Zhang Y, Liu R, Feng Q, Li H, Li Y, Liu X. Insulin-Loaded Soybean Trypsin Inhibitor-Chitosan Nanoparticles: Preparation, Characterization, and Protective Effect Evaluation. Polymers (Basel) 2023; 15:2648. [PMID: 37376294 DOI: 10.3390/polym15122648] [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: 05/05/2023] [Revised: 06/08/2023] [Accepted: 06/09/2023] [Indexed: 06/29/2023] Open
Abstract
The aim of this work was to prepare insulin-loaded nanoparticles using soybean trypsin inhibitor (STI) and chitosan (CS) as a potential coating. The nanoparticles were prepared by complex coacervation, and characterized for their particle size, polydispersity index (PDI), and encapsulation efficiency. In addition, the insulin release and enzymatic degradation of nanoparticles in simulated gastric fluid (SGF) and simulated intestinal fluid (SIF) were evaluated. The results showed that the optimal conditions for preparing insulin-loaded soybean trypsin inhibitor-chitosan (INs-STI-CS) nanoparticles were as follows: CS concentration of 2.0 mg/mL, STI concentration of 1.0 mg/mL, and pH 6.0. The INs-STI-CS nanoparticles prepared at this condition had a high insulin encapsulation efficiency of 85.07%, the particle diameter size was 350 ± 5 nm, and the PDI value was 0.13. The results of the in vitro evaluation of simulated gastrointestinal digestion showed that the prepared nanoparticles could improve the stability of insulin in the gastrointestinal tract. Compared with free insulin, the insulin loaded in INs-STI-CS nanoparticles was retained at 27.71% after 10 h of digestion in the intestinal tract, while free insulin was completely digested. These findings will provide a theoretical basis for improving the stability of oral insulin in the gastrointestinal tract.
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Affiliation(s)
- Yihao Zhang
- Key Laboratory of Geriatric Nutrition and Health, Ministry of Education, National Soybean Processing Industry Technology Innovation Center, Beijing Technology and Business University, Beijing 100048, China
| | - Ruijia Liu
- Key Laboratory of Geriatric Nutrition and Health, Ministry of Education, National Soybean Processing Industry Technology Innovation Center, Beijing Technology and Business University, Beijing 100048, China
| | - Qixu Feng
- Key Laboratory of Geriatric Nutrition and Health, Ministry of Education, National Soybean Processing Industry Technology Innovation Center, Beijing Technology and Business University, Beijing 100048, China
| | - He Li
- Key Laboratory of Geriatric Nutrition and Health, Ministry of Education, National Soybean Processing Industry Technology Innovation Center, Beijing Technology and Business University, Beijing 100048, China
| | - You Li
- Key Laboratory of Geriatric Nutrition and Health, Ministry of Education, National Soybean Processing Industry Technology Innovation Center, Beijing Technology and Business University, Beijing 100048, China
| | - Xinqi Liu
- Key Laboratory of Geriatric Nutrition and Health, Ministry of Education, National Soybean Processing Industry Technology Innovation Center, Beijing Technology and Business University, Beijing 100048, China
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8
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Yu X, Wang XX, Zou LF, Cai KZ, Pan JZ, Chen CG. Insights into the in vitro digestibility of pork myofibrillar protein with different ionic polysaccharides from the perspective of gel characteristics. Food Chem 2023; 426:136520. [PMID: 37307745 DOI: 10.1016/j.foodchem.2023.136520] [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: 03/01/2023] [Revised: 05/16/2023] [Accepted: 05/30/2023] [Indexed: 06/14/2023]
Abstract
In this work, the simulated gastrointestinal digestion of myofibrillar protein gels (MPGs) with anionic xanthan (XMP) and sodium alginate (SMP)/cationic chitosan (CSMP)/neutral curdlan (CMP) and konjac (KMP) was investigated to develop muscle-gelled foods with good qualities before and after eating. The results indicated that the neutral CMP and KMP groups had higher gel strength and protein digestibility than the CSMP group. Xanthan and sodium alginate facilitated myosin degradation in gastrointestinal digestion because of the weak wraps between protein and anionic polysaccharides, gaining plentiful peptides (1790 and 1692 respectively) with molecular weights below 2000 Da. Chitosan and neutral curdlan could improve the strength of MP gel but inhibited proteolysis and resulted in low contents of released amino acids via the strong cross-linked network blocking trypsin contact. This work provides a theoretical basis for developing low-fat meat products with good qualities and digestion behaviors by simply controlling the ionic types of polysaccharides.
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Affiliation(s)
- Xia Yu
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, Anhui Province, PR China
| | - Xi-Xi Wang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, Anhui Province, PR China
| | - Li-Fang Zou
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, Anhui Province, PR China
| | - Ke-Zhou Cai
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, Anhui Province, PR China; Engineering Research Center of Bio-process from Ministry of Education, Hefei University of Technology, Hefei 230009, Anhui Province, PR China
| | - Jing-Zhi Pan
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, Anhui Province, PR China; School of Biological Science and Food Engineering, Chuzhou University, Chuzhou 239000, Anhui Province, PR China.
| | - Cong-Gui Chen
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, Anhui Province, PR China; Engineering Research Center of Bio-process from Ministry of Education, Hefei University of Technology, Hefei 230009, Anhui Province, PR China.
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9
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Tao Y, Wang P, Xu X, Chen J, Huang M, Zhang W. Effects of ultrasound treatment on the morphological characteristics, structures and emulsifying properties of genipin cross-linked myofibrillar protein. ULTRASONICS SONOCHEMISTRY 2023; 97:106467. [PMID: 37290150 DOI: 10.1016/j.ultsonch.2023.106467] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 04/20/2023] [Accepted: 05/31/2023] [Indexed: 06/10/2023]
Abstract
Genipin is a natural crosslinker that improves the functional properties of proteins by modifying its structures. This study aimed to investigate the effects of sonication on the emulsifying properties of different genipin concentration-induced myofibrillar protein (MP) cross-linking. The structural characteristics, solubility, emulsifying properties, and rheological properties of genipin-induced MP crosslinking without sonication (Native), sonication before crosslinking (UMP), and sonication after crosslinking (MPU) treatments were determined, and the interaction between genipin and MP were estimated by molecular docking. The results demonstrated that hydrogen bond might be the main forces for genipin binding to the MP, and 0.5 μM/mg genipin was a desirable concentration for protein cross-linking to improve MP emulsion stability. Ultrasound treatment before and after crosslinking were better than Native treatment to improve the emulsifying stability index (ESI) of MP. Among the three treatment groups at the 0.5 μM/mg genipin treatment, the MPU treatment group showed the smallest size, most uniform protein particle distribution, and the highest ESI (59.89%). Additionally, the highest α-helix (41.96%) in the MPU + G5 group may be conducive to the formation of a stable and multilayer oil-water interface. Furthermore, the free groups, solubility, and protein exposure extent of the MPU groups were higher than those of UMP and Native groups. Therefore, this work suggests that the treatment of cross-linking followed by ultrasound (MPU) could be a desirable approach for improving the emulsifying stability of MP.
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Affiliation(s)
- Ye Tao
- Key Laboratory of Meat Processing, Ministry of Agriculture, State Key Lab of Meat Quality Control and Cultured Meat Development, Ministry of Science and Technology, Jiangsu Collaborative Innovation Center of Meat Production and Processing, College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, PR China
| | - Peng Wang
- Key Laboratory of Meat Processing, Ministry of Agriculture, State Key Lab of Meat Quality Control and Cultured Meat Development, Ministry of Science and Technology, Jiangsu Collaborative Innovation Center of Meat Production and Processing, College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, PR China
| | - Xinglian Xu
- Key Laboratory of Meat Processing, Ministry of Agriculture, State Key Lab of Meat Quality Control and Cultured Meat Development, Ministry of Science and Technology, Jiangsu Collaborative Innovation Center of Meat Production and Processing, College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, PR China.
| | - Jiahui Chen
- Key Laboratory of Meat Processing, Ministry of Agriculture, State Key Lab of Meat Quality Control and Cultured Meat Development, Ministry of Science and Technology, Jiangsu Collaborative Innovation Center of Meat Production and Processing, College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, PR China
| | - Mingyuan Huang
- Key Laboratory of Meat Processing, Ministry of Agriculture, State Key Lab of Meat Quality Control and Cultured Meat Development, Ministry of Science and Technology, Jiangsu Collaborative Innovation Center of Meat Production and Processing, College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, PR China
| | - Weiyi Zhang
- Key Laboratory of Meat Processing, Ministry of Agriculture, State Key Lab of Meat Quality Control and Cultured Meat Development, Ministry of Science and Technology, Jiangsu Collaborative Innovation Center of Meat Production and Processing, College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, PR China
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10
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Zhang H, Li X, Sun S, Wang Y, Li Z, Kang H, Peng X. Effects of carboxymethyl chitosan on the oxidation stability and gel properties of myofibrillar protein from frozen pork patties. Int J Biol Macromol 2023; 234:123710. [PMID: 36801276 DOI: 10.1016/j.ijbiomac.2023.123710] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/19/2023] [Accepted: 02/11/2023] [Indexed: 02/19/2023]
Abstract
The effect of carboxymethyl chitosan (CMCH) on the oxidation stability and gel properties of myofibrillar protein (MP) from frozen pork patties was investigated. The results showed that CMCH could inhibit the denaturation of MP induced by freezing. Compared with the control group, the protein solubility was significantly (P < 0.05) increased, while the carbonyl content, the loss of sulfhydryl groups, and the surface hydrophobicity were decreased, respectively. Meanwhile, the incorporation of CMCH could alleviate the influence of frozen storage on water mobility and reduce the water loss. With the increased concentration of CMCH, the whiteness, strength, and water-holding capacity (WHC) of MP gels were significantly improved, in which the maximum value was at addition level of 1 %. In addition, CMCH inhibited the decrease in the maximum elastic (G') value and loss factor (tan δ) value of samples. By scanning electron microscopy (SEM) observation, CMCH stabilized the microstructure of the gel and maintained the relative integrity of the gel tissue. These findings suggest that CMCH could be used as a cryoprotectant to maintain the structural stability of MP in pork patty during frozen storage.
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Affiliation(s)
- Huiyun Zhang
- Food and Bioengineering Department, Henan University of Science and Technology, Luoyang, Henan 471003, China.
| | - Xinling Li
- Food and Bioengineering Department, Henan University of Science and Technology, Luoyang, Henan 471003, China
| | - Shuoshuo Sun
- Food and Bioengineering Department, Henan University of Science and Technology, Luoyang, Henan 471003, China
| | - Yuantu Wang
- Food and Bioengineering Department, Henan University of Science and Technology, Luoyang, Henan 471003, China
| | - Ziyan Li
- Food and Bioengineering Department, Henan University of Science and Technology, Luoyang, Henan 471003, China
| | - Huaibin Kang
- Food and Bioengineering Department, Henan University of Science and Technology, Luoyang, Henan 471003, China
| | - Xinyan Peng
- College of Life Science, Yantai University, Yantai, Shandong 264025, China
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11
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Ren Z, Huang X, Shi L, Liu S, Yang S, Hao G, Qiu X, Liu Z, Zhang Y, Zhao Y, Weng W. Characteristics and potential application of myofibrillar protein from golden threadfin bream (Nemipterus virgatus) complexed with chitosan. Int J Biol Macromol 2023; 240:124380. [PMID: 37044323 DOI: 10.1016/j.ijbiomac.2023.124380] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 03/29/2023] [Accepted: 04/05/2023] [Indexed: 04/14/2023]
Abstract
The strategies to broaden the applications of proteins involve their modification with polysaccharides. However, the characteristics and application of myofibrillar proteins (MPs) from golden threadfin bream (Nemipterus virgatus) complexed with chitosan (CS) are still unclear. Therefore, the characteristics of MPs complexed with CS and their application were investigated at different MP/CS ratios (100:0-80:20 (w/w)). The turbidity of MP/CS complexes was small at the MP/CS ratio of 95:5 (w/w). Besides, CS addition induced changes in MP structure to make it hydrophilic. Secondary structure analysis showed that α-helix and β-turn interconverted with β-sheet and random coil after the addition of CS. Additionally, the thermal stability of MP/CS mixtures enhanced after the addition of CS and the MP/CS mixtures at the ratio of 95:5 (w/w) had a relatively compact structure. High internal phase emulsions (HIPEs) prepared at the MP/CS ratio of 95:5 (w/w) were relatively stable compared to those at the other ratios. Consequently, MP/CS mixtures at suitable ratios possess the potential ability to prepare HIPEs. These results exhibit that MP/CS mixtures may be applied for constructing food-graded emulsion delivery systems with a high internal phase in the food industry.
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Affiliation(s)
- Zhongyang Ren
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen 361021, China; Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Xiamen 361021, China
| | - Xianglan Huang
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen 361021, China
| | - Linfan Shi
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen 361021, China; Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Xiamen 361021, China
| | - Shuji Liu
- Fisheries Research Institute of Fujian, Key Laboratory of Cultivation and High-value Utilization of Marine Organisms in Fujian Province, Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resource, Xiamen 361013, China
| | - Shen Yang
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen 361021, China; Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Xiamen 361021, China
| | - Gengxin Hao
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen 361021, China; Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Xiamen 361021, China
| | - Xujian Qiu
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen 361021, China; Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Xiamen 361021, China
| | - Zhiyu Liu
- Fisheries Research Institute of Fujian, Key Laboratory of Cultivation and High-value Utilization of Marine Organisms in Fujian Province, Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resource, Xiamen 361013, China
| | - Yucang Zhang
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen 361021, China
| | - Yongqiang Zhao
- Key Laboratory of Aquatic Product Processing, Ministry of Agriculture and Rural Affairs of The People's Republic of China, National R&D Center for Aquatic Product Processing, South China Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China.
| | - Wuyin Weng
- College of Ocean Food and Biological Engineering, Jimei University, Xiamen 361021, China; Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Xiamen 361021, China.
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12
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Zhang Y, Liu R, Li H, Li Y, Liu X. Interactions between Soybean Trypsin Inhibitor and Chitosan in an Aqueous Solution. Polymers (Basel) 2023; 15:polym15071594. [PMID: 37050206 PMCID: PMC10097168 DOI: 10.3390/polym15071594] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 03/17/2023] [Accepted: 03/21/2023] [Indexed: 04/14/2023] Open
Abstract
Supramolecular structures obtained from protein-polysaccharide association may be applied to encapsulate bioactive compounds or to improve the physical stability and texture properties of colloid-based products. In this study, the interaction of 0.1 wt% soybean trypsin inhibitor (STI) with different concentrations of chitosan (CS) in aqueous solutions was investigated under different pH by the analysis of state diagram, turbidity, zeta potential, spectroscopy, and microstructure; the protective effect of STI-CS complex coacervates on STI stability in simulated gastric juice was also discussed. The results suggested that interactions between STI and CS could form soluble/insoluble complexes mainly through hydrophobic interactions (pH 4.0) or electrostatic interactions (pH 6.0). The CD spectra showed that the secondary structure of STI did not change significantly when CS with the same charge was mixed with STI, and the secondary structure of STI was slightly changed when CS with the opposite charge was mixed with STI. Simulated gastric digestion experiments showed that the complex formed by non-covalent bonding had a protective effect on the active protein. This study provides information about the effect of different CS concentrations and pH values on the formation of complexes of CS and STI in an aqueous solution and provides theoretical references for the construction of supramolecular-structured carrier substances based on CS and STI.
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Affiliation(s)
- Yihao Zhang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, National Soybean Processing Industry Technology Innovation Center, Beijing Technology and Business University, Beijing 100048, China
| | - Ruijia Liu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, National Soybean Processing Industry Technology Innovation Center, Beijing Technology and Business University, Beijing 100048, China
| | - He Li
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, National Soybean Processing Industry Technology Innovation Center, Beijing Technology and Business University, Beijing 100048, China
| | - You Li
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, National Soybean Processing Industry Technology Innovation Center, Beijing Technology and Business University, Beijing 100048, China
| | - Xinqi Liu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, National Soybean Processing Industry Technology Innovation Center, Beijing Technology and Business University, Beijing 100048, China
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13
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Preparation, characterization and digestive mechanism of plant-derived oil bodies-based oleogels structured by chitosan and vanillin. Food Hydrocoll 2023. [DOI: 10.1016/j.foodhyd.2022.108247] [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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14
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Development of emulsion-based edible inks for 3D printing applications: Pickering emulsion gels. Food Hydrocoll 2023. [DOI: 10.1016/j.foodhyd.2023.108482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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15
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Huang M, Xu Y, Xu L, Bai Y, Zeng X, Zheng R, Xu X. Conformation changes and emulsifying properties of myofibrillar proteins in water: Effects of electrostatic interaction with chitosan. Food Res Int 2023; 163:112154. [PMID: 36596105 DOI: 10.1016/j.foodres.2022.112154] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Revised: 11/01/2022] [Accepted: 11/15/2022] [Indexed: 11/21/2022]
Abstract
Great interests have been attracted toward muscle protein in a water-soluble state with improved functionality for further designing meat protein fortified low-salt functional foods. In the present study, electrostatic interaction of chitosan (CH) with myofibrillar proteins (MP) in water aqueous solution was investigated, and the linked structure changes and emulsion stabilization of MP were studied. Results showed that the electrostatic interaction inhibited MP aggregation, and smaller particle size complexes were formed at pH 6.0, leading to the loss of β-sheet contents and recovery of α-helix contents with decreasing MP/CH mixing ratio (5:1 and 1:1). The tertiary structure confirmed the conformation changes of MP in which more hydrophobic groups and active sulfhydryl groups were exposed (P < 0.05), and the fluorescence was also quenched. With decreasing mixing ratio, the droplet size of emulsion decreased (P < 0.05), while the absorbed protein content increased (P < 0.05). After 7 d of storage, complex at a ratio of 1:1 displayed desirable emulsion stability, which could be due to the improved emulsifying capacity, enhanced electrostatic repulsion and steric effects. These findings provide a better understanding of conformation changes of MP in water aqueous solution induced by electrostatic interactions at mild acidic pH and help to fabricate stable protein/polysaccharide emulsification systems for further developing meat protein-based functional food to deliver health.
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Affiliation(s)
- Mingyuan Huang
- Key Laboratory of Meat Processing and Quality Control, Ministry of Education; National Center of Meat Quality and Safety Control; Jiangsu Collaborative Innovation Center of Meat Production and Processing, Quality and Safety Control; College of Food Science and Technology; Nanjing Agricultural University, Nanjing 210095, PR China
| | - Yujuan Xu
- Key Laboratory of Meat Processing and Quality Control, Ministry of Education; National Center of Meat Quality and Safety Control; Jiangsu Collaborative Innovation Center of Meat Production and Processing, Quality and Safety Control; College of Food Science and Technology; Nanjing Agricultural University, Nanjing 210095, PR China
| | - Lina Xu
- Key Laboratory of Meat Processing and Quality Control, Ministry of Education; National Center of Meat Quality and Safety Control; Jiangsu Collaborative Innovation Center of Meat Production and Processing, Quality and Safety Control; College of Food Science and Technology; Nanjing Agricultural University, Nanjing 210095, PR China
| | - Yun Bai
- Key Laboratory of Meat Processing and Quality Control, Ministry of Education; National Center of Meat Quality and Safety Control; Jiangsu Collaborative Innovation Center of Meat Production and Processing, Quality and Safety Control; College of Food Science and Technology; Nanjing Agricultural University, Nanjing 210095, PR China
| | - Xianming Zeng
- Key Laboratory of Meat Processing and Quality Control, Ministry of Education; National Center of Meat Quality and Safety Control; Jiangsu Collaborative Innovation Center of Meat Production and Processing, Quality and Safety Control; College of Food Science and Technology; Nanjing Agricultural University, Nanjing 210095, PR China
| | - Rui Zheng
- Key Laboratory of Meat Processing and Quality Control, Ministry of Education; National Center of Meat Quality and Safety Control; Jiangsu Collaborative Innovation Center of Meat Production and Processing, Quality and Safety Control; College of Food Science and Technology; Nanjing Agricultural University, Nanjing 210095, PR China
| | - Xinglian Xu
- Key Laboratory of Meat Processing and Quality Control, Ministry of Education; National Center of Meat Quality and Safety Control; Jiangsu Collaborative Innovation Center of Meat Production and Processing, Quality and Safety Control; College of Food Science and Technology; Nanjing Agricultural University, Nanjing 210095, PR China.
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16
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Chitosan can improve the storage stability of ovalbumin fibrils at pH higher than isoelectric point. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2022.108286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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