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Wen L, Dai H, Li S, Liang H, Li B, Li J. Improvement of processable properties of plant-based high internal phase emulsions by mung bean protein isolate based on pH shift treatment. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024; 104:6966-6976. [PMID: 38619073 DOI: 10.1002/jsfa.13529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 03/13/2024] [Accepted: 04/15/2024] [Indexed: 04/16/2024]
Abstract
BACKGROUND High internal phase emulsions (HIPEs) are unique emulsion systems that transform liquid oil into solid-like fats, thus avoiding the use of saturated fat and leading to a healthier and more sustainable food system for consumers. HIPEs with oil volume fraction (ϕ) of 75-85% were fabricated with mung bean protein isolate (MPI) under different pH shift treatments at 1.0% concentration through the one-step method. In the present study, we investigated the physical properties, microstructures, processing properties, storage stability and rheological properties of HIPEs. RESULTS The results suggested that the properties of MPI under different pH shift treatments were improved to different degrees, stabilizing HIPEs (ϕ = 75-85%) with various processability to meet food processing needs. Under alkali shift treatment conditions, the particle size of MPI was significantly reduced with better solubility. Moreover, the exposure of hydrophobic groups increased the surface hydrophobicity of MPI, awarding MPI better emulsifying properties, which could stabilize the HIPEs with higher oil phase fraction. In addition, the MPI under pH 12 shift treatment (MPI-12) had the best oil-carrying ability to form the stable HIPEs with oil volume fraction (ϕ) up to 85%, which was the highest oil phase in preparing the HIPEs using plant protein solely at a low concentration under neutral conditions. CONCLUSION A series of stable HIPEs with different processing properties was simply and feasibly fabricated and these are of great potential in applying edible HIPEs. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Luming Wen
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, China
- Shenzhen Institute of Nutrition and Health, Huazhong Agricultural University, Shenzhen, China
- Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
| | - Hongmin Dai
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, China
- Shenzhen Institute of Nutrition and Health, Huazhong Agricultural University, Shenzhen, China
| | - Sha Li
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, China
- Shenzhen Institute of Nutrition and Health, Huazhong Agricultural University, Shenzhen, China
| | - Hongshan Liang
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, China
- Shenzhen Institute of Nutrition and Health, Huazhong Agricultural University, Shenzhen, China
| | - Bin Li
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, China
- Shenzhen Institute of Nutrition and Health, Huazhong Agricultural University, Shenzhen, China
- Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
| | - Jing Li
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, China
- Shenzhen Institute of Nutrition and Health, Huazhong Agricultural University, Shenzhen, China
- Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
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2
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Jain S, Zhong Q. Enhancing the functionality of pea proteins by conjugation with propylene glycol alginate via transacylation reaction assisted with ultrasonication. Food Chem 2024; 449:139179. [PMID: 38574527 DOI: 10.1016/j.foodchem.2024.139179] [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: 11/01/2023] [Revised: 03/05/2024] [Accepted: 03/27/2024] [Indexed: 04/06/2024]
Abstract
Pea proteins lack the desirable functional characteristics for food and beverage applications. In this study, transacylation reaction assisted with ultrasonication was used to glycate pea proteins with propylene glycol alginate to enhance their functional properties. The reaction was carried out at pH 11.0 for different pea protein isolate: propylene glycol alginate mass ratios and time durations in a sonic bath at 40 °C. Glycation was confirmed in gel electrophoresis, and ultrasonication enhanced the glycation, with optimal degrees of glycation observed at 45 min reaction time and mass ratios of 2:1 (37.73%) and 1:1 (35.96%). The transacylation reaction increased random coil content of pea proteins by 28% and enhanced their solubility by 2.02 times at pH 7.0, water holding capacity by >50% at pH 7.0, foaming properties, emulsifying properties, and heat stability. This study offers a novel approach that can enhance functionality and applicability of pea proteins.
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Affiliation(s)
- Surangna Jain
- Department of Food Science, University of Tennessee, Knoxville, TN, USA.
| | - Qixin Zhong
- Department of Food Science, University of Tennessee, Knoxville, TN, USA.
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3
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Alrosan M, Madi Almajwal A, Al-Qaisi A, Gammoh S, Alu'datt MH, Al Qudsi FR, Tan TC, Razzak Mahmood AA, Bani-Melhem K. Trehalose-conjugated lentil-casein protein complexes prepared by structural interaction: Effects on water solubility and protein digestibility. Food Chem 2024; 447:138882. [PMID: 38452537 DOI: 10.1016/j.foodchem.2024.138882] [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: 10/26/2023] [Revised: 01/29/2024] [Accepted: 02/25/2024] [Indexed: 03/09/2024]
Abstract
The two limiting factors for lentil protein utilization are water solubility and digestibility. In this study, we utilized two non-thermal techniques: (1) protein complexation of lentil and casein proteins using the pH-shifting method and (2) protein conjugation with trehalose to produce trehalose-conjugated lentil-casein protein complexes (T-CPs) with enhanced water solubility and digestibility. The protein structure of the T-CPs was analyzed for secondary protein structure, conformation protein, and tertiary protein structure using Fourier-transform infrared, UV, and fluorescence spectroscopies, respectively. The surface hydrophobicity and surface charge of T-CPs solution at pH 7.0 changed significantly (P < 0.05). Using these two non-thermal techniques, the water solubility and digestibility of T-CPs increased significantly (P < 0.05) by 85 to 89 % and 80 to 85 %, respectively. The results of this study suggested that these non-thermal techniques could enhance the surface and protein structure properties, improving water solubility and digestibility.
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Affiliation(s)
- Mohammad Alrosan
- Food Technology Division, School of Industrial Technology, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia; Applied Science Research Center, Applied Science Private University, Al-Arab St. 21, Amman 11931, Jordan; College of Health Science, QU Health, Qatar University, Doha P.O. Box 2713, Qatar; Department of Nutrition and Food Science, Faculty of Agriculture, Jerash University, Jerash, Jordan.
| | - Ali Madi Almajwal
- Department of Community Health Sciences, College of Applied Medical Sciences, King Saud University, P.O. Box 10219, Riyadh 11433, Saudi Arabia
| | - Ali Al-Qaisi
- Department of Nutrition and Food Technology, Faculty of Agriculture, Jordan University of Science and Technology, P.O. Box 3030, Irbid 22110, Jordan; Department of Agricultural Biotechnology, Faculty of Agricultural Sciences and Technology, Palestine Technical University-Kadoorie (PTUK), Jaffa Street, Tulkarm P.O. Box 7, Palestine
| | - Sana Gammoh
- Department of Nutrition and Food Technology, Faculty of Agriculture, Jordan University of Science and Technology, P.O. Box 3030, Irbid 22110, Jordan
| | - Muhammad H Alu'datt
- Department of Nutrition and Food Technology, Faculty of Agriculture, Jordan University of Science and Technology, P.O. Box 3030, Irbid 22110, Jordan; Department of Food Science & Nutrition, College of Life Sciences, Kuwait University, P.O. Box. 5969, Safat 13060, Kuwait
| | - Farah R Al Qudsi
- Department of Food Science, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - Thuan-Chew Tan
- Food Technology Division, School of Industrial Technology, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia
| | - Ammar A Razzak Mahmood
- Department of Pharmaceutical Chemistry, College of Pharmacy, University of Baghdad, Baghdad, Bab-Al-Mouadam 10001, Iraq
| | - Khalid Bani-Melhem
- Water Technology Unit (WTU), Center for Advanced Materials (CAM), Qatar University, P.O. Box 2713, Doha, Qatar
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4
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Wang Y, Zhu L, Zhu Z, Liu M, Zhao X. Effects of Different pH Levels on the Structural and Functional Properties of Proteins of Phaeodactylum tricornutum. Molecules 2024; 29:3139. [PMID: 38999090 PMCID: PMC11243640 DOI: 10.3390/molecules29133139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2024] [Revised: 06/26/2024] [Accepted: 06/28/2024] [Indexed: 07/14/2024] Open
Abstract
Phaeodactylum tricornutum is identified by its capacity for rapid growth, reproduction, and in vitro cultivation, as well as the presence of a range of high-value active compounds, including proteins, with potential food applications. The objective of this study was to investigate the effects of pH shift treatments (pH of 3, 5, 7, 9, and 11) on the structural and functional properties of the Phaeodactylum tricornutum protein (PTP). The molecular weight of the PTP was predominantly distributed within the following ranges: below 5 kDa, 5-100 kDa, and above 100 kDa. Compared to the acidic environment, the PTP demonstrated higher solubility and greater free sulfhydryl group content in the alkaline environment. Additionally, PTP had a smaller particle size and higher thermal stability in alkaline environments. The PTP exhibited superior foaming ability (135%), emulsification activity index (3.72 m2/g), and emulsion stability index (137.71 min) in alkaline environments. The results of this investigation provide a foundation for the future development and application of the PTP in the food industry.
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Affiliation(s)
- Yanli Wang
- School of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Laijing Zhu
- School of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Zhunyao Zhu
- School of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Meng Liu
- School of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Xiangzhong Zhao
- School of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
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5
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Wang Y, Shen J, Zou B, Zhang L, Xu X, Wu C. Unveiling the critical pH values triggering the unfolding of soy 7S and 11S globulins and enhancing their encapsulation efficiency. Food Chem 2024; 445:138707. [PMID: 38354644 DOI: 10.1016/j.foodchem.2024.138707] [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: 11/16/2023] [Revised: 01/15/2024] [Accepted: 02/06/2024] [Indexed: 02/16/2024]
Abstract
The pH-shifting process is an effective encapsulation method, and it is typically performed at extreme alkaline pH, which severely limits the application. In this study, we found that there were critical pH for the unfolding proteins during pH-shifting from 7 to 12, and upon the critical pH, physiochemical characteristics of protein greatly changed, leading to a sharp increase of encapsulation of hydrophobic actives. Firstly, the critical pH for β-conglycinin (7S) or Glycinin (11S) unfolding was determined by multispectral technology. The critical pH for 7S and 11S were 10.5 and 10.3, respectively. The encapsulation efficiency (EE) obtained by β-conglycinin-curcumin nanocomposite (7S-Cur) (88.80 %) and Glycinin-curcumin nanocomposite (11S-Cur) (88.38 %) at critical pH was significantly higher than that obtained by pH 7 (7S-Cur = 16.66 % and 11S-Cur = 15.78 %), and both values were close to EE obtained by at 12 (7S-Cur = 95.16 % and 11S-Cur = 94.63 %). The large-scale application of hydrophobic functional compounds will be enhanced by the experimental results.
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Affiliation(s)
- Yuying Wang
- College of Food Science, Dalian Polytechnic University, Dalian 116034, China; College of Life Sciences, Key Laboratory of Biotechnology and Bioresources Utilization, Dalian Minzu University, Ministry of Education, Dalian 116600, China; State Key Laboratory of Marine Food Processing and Safety Control, China; National Engineering Research Center of Seafood, China
| | - Jing Shen
- Ningjin Market Supervision Administration, Dezhou 253400, China
| | - Bowen Zou
- College of Food Science, Dalian Polytechnic University, Dalian 116034, China; State Key Laboratory of Marine Food Processing and Safety Control, China; National Engineering Research Center of Seafood, China
| | - Ling Zhang
- College of Food Science, Dalian Polytechnic University, Dalian 116034, China; State Key Laboratory of Marine Food Processing and Safety Control, China; National Engineering Research Center of Seafood, China
| | - Xianbing Xu
- College of Food Science, Dalian Polytechnic University, Dalian 116034, China; State Key Laboratory of Marine Food Processing and Safety Control, China; National Engineering Research Center of Seafood, China
| | - Chao Wu
- College of Food Science, Dalian Polytechnic University, Dalian 116034, China; State Key Laboratory of Marine Food Processing and Safety Control, China; National Engineering Research Center of Seafood, China.
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6
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Chen Q, Wang X, Wang Y, Guo T, Guan P, Hou J, Chen Z. Effects of inulin with different polymerization degrees on the structural and gelation properties of potato protein. Food Chem X 2024; 22:101405. [PMID: 38694543 PMCID: PMC11061243 DOI: 10.1016/j.fochx.2024.101405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 04/17/2024] [Accepted: 04/18/2024] [Indexed: 05/04/2024] Open
Abstract
This study investigated the effect of inulin with different polymerization degrees (DP), including L-inulin (DP 2-6), M-inulin (DP 10-23) and H-inulin (DP 23-46), on the structural and gelation properties of potato protein isolate (PPI). Results revealed that textural properties (hardness, cohesiveness, springiness and chewiness) and water-holding capacity (WHC) of PPI-inulin composite gels were positively correlated with the inulin DP and addition content at 0-1.5% (w/v), but deteriorated at 2% due to phase separation. The addition of 1.5% H-inulin showed the most significant increment effects on the WHC (18.65%) and hardness (2.84 N) of PPI gel. Furthermore, M-/H-inulin were more effective in increasing the whiteness and surface hydrophobicity, as well as in strengthening hydrogen bonds and hydrophobic interactions than L-inulin. Fourier transform infrared spectroscopy analysis and microstructural observation indicated that inulin with higher DP promoted more generation of β-sheet structures, and leading to the formation of stronger and finer network structures.
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Affiliation(s)
- Qiongling Chen
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu, Shanxi 030801, China
| | - Xiaowen Wang
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu, Shanxi 030801, China
| | - Yu Wang
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu, Shanxi 030801, China
| | - Tianqi Guo
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu, Shanxi 030801, China
| | - Peihan Guan
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu, Shanxi 030801, China
| | - Jinyu Hou
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu, Shanxi 030801, China
| | - Zhenjia Chen
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu, Shanxi 030801, China
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7
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Alrosan M, Almajwal AM, Al-Qaisi A, Gammoh S, Alu'datt MH, Al Qudsi FR, Tan TC, Razzak Mahmood AA, Maghaydah S, Al-Massad M. Evaluation of digestibility, solubility, and surface properties of trehalose-conjugated quinoa proteins prepared via pH shifting technique. Food Chem X 2024; 22:101397. [PMID: 38711772 PMCID: PMC11070818 DOI: 10.1016/j.fochx.2024.101397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 03/24/2024] [Accepted: 04/16/2024] [Indexed: 05/08/2024] Open
Abstract
Soluble trehalose-conjugated quinoa proteins (T-QPs) were effectively prepared using the pH-shifting mechanism. The structural properties of the T-QPs were evaluated using a comparative evaluation, which included analyzing the amide I, surface charge and hydrophobicity, protein conformation, thermal stability, and protein structures. The results suggested that the development of the T-QPs was influenced mainly by no-covalent bonds. These interactions significantly influenced (P < 0.05) the quinoa proteins' conformation and higher-protein structure. T-QP had significant (P < 0.05) surface properties. Furthermore, the T-QPs exhibited improved solubility (79.7 to 88.4%) and digestibility (79.8 to 85.1%). Therefore, quinoa protein proved an excellent plant-based protein for conjugation with disaccharides. These findings provide significant insight into the potential development of modified proteins with enhanced solubility and digestibility by creating trehalose-conjugated plant-based proteins.
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Affiliation(s)
- Mohammad Alrosan
- Department of Food Science and Nutrition, Faculty of Agriculture, Jerash University, Jerash, Jordan
- College of Health Sciences, QU Health, Qatar University, Doha, P.O. Box 2713, Qatar
- Applied Science Research Center, Applied Science Private University, Al-Arab St. 21, Amman 11931, Jordan
| | - Ali Madi Almajwal
- Department of Community Health Sciences, College of Applied Medical Sciences, King Saud University, P.O. Box 10219, Riyadh 11433, Saudi Arabia
| | - Ali Al-Qaisi
- Department of Agricultural Biotechnology, Faculty of Agricultural Sciences and Technology, Palestine Technical University-Kadoorie (PTUK), Ja22a Street, Tulkarm, P.O. Box 7, Palestine
| | - Sana Gammoh
- Department of Nutrition and Food Technology, Faculty of Agriculture, Jordan University of Science and Technology, P.O. Box 3030, Irbid 22110, Jordan
| | - Muhammad H. Alu'datt
- Department of Nutrition and Food Technology, Faculty of Agriculture, Jordan University of Science and Technology, P.O. Box 3030, Irbid 22110, Jordan
- Department of Food Science & Nutrition, College of Life Sciences, Kuwait University, P.O. Box. 5969, Safat 13060, Kuwait
| | - Farah R. Al Qudsi
- Department of Food Science, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - Thuan-Chew Tan
- Food Technology Division, School of Industrial Technology, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia
| | - Ammar A. Razzak Mahmood
- Department of Pharmaceutical Chemistry, College of Pharmacy-University of Baghdad, Baghdad, Bab-Al-Mouadam 10001, Iraq
| | - Sofyan Maghaydah
- Department of Nutrition and Food Technology, Faculty of Agriculture, Jordan University of Science and Technology, P.O. Box 3030, Irbid 22110, Jordan
- Department of Human Nutrition and Dietetics, College of Health Sciences, Abu Dhabi University, Zayed City, Abu Dhabi, P.O. Box 59911, United Arab Emirates
| | - Motasem Al-Massad
- Department of Animal Production and Protection, Faculty of Agriculture, Jerash University, 26250, Jerash, Jordan
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Zhu L, Liu M, Wang Y, Zhu Z, Zhao X. Euglena gracilis Protein: Effects of Different Acidic and Alkaline Environments on Structural Characteristics and Functional Properties. Foods 2024; 13:2050. [PMID: 38998555 PMCID: PMC11240951 DOI: 10.3390/foods13132050] [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: 05/28/2024] [Revised: 06/19/2024] [Accepted: 06/25/2024] [Indexed: 07/14/2024] Open
Abstract
Due to the growing demand for human-edible protein sources, microalgae are recognized as an economically viable alternative source of proteins. The investigation into the structural characteristics and functional properties of microalgin is highly significant for its potential application in the food industry as an alternative source of protein. In this research, we extracted protein from Euglena gracilis by using alkaline extraction and acid precipitation and investigated its structural characteristics and functional properties in different acidic and alkaline environments. The molecular weight distribution of Euglena gracilis protein (EGP), as revealed by the size exclusion chromatography results, ranges from 152 to 5.7 kDa. EGP was found to be rich in hydrophobic amino acids and essential amino acids. Fourier infrared analysis revealed that EGP exhibited higher α-helix structure content and lower β-sheet structure content in alkaline environments compared with acidic ones. EGP exhibited higher foaming properties, emulsifying activity index, solubility, free sulfhydryl, and total sulfhydryl in pH environments far from its isoelectric point, and lower fluorescence intensity (2325 A.U.), lower surface hydrophobicity, larger average particle size (25.13 µm), higher emulsifying stability index, and water-holding capacity in pH environments near its isoelectric point. In addition, X-ray diffraction (XRD) patterns indicated that different acidic and alkaline environments lead to reductions in the crystal size and crystallinity of EGP. EGP exhibited high denaturation temperature (Td; 99.32 °C) and high enthalpy (ΔH; 146.33 J/g) at pH 11.0, as shown by the differential scanning calorimetry (DSC) results. The findings from our studies on EGP in different acidic and alkaline environments provide a data basis for its potential commercial utilization as a food ingredient in products such as emulsions, gels, and foams.
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Affiliation(s)
- Laijing Zhu
- School of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Meng Liu
- School of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Yanli Wang
- School of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Zhunyao Zhu
- School of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Xiangzhong Zhao
- School of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
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9
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Karabulut G, Feng H. Enhancing techno-functional attributes of plant protein and curcumin complexation: A comparative examination of Maillard conjugation induced by manothermosonication and ultrasonication. Food Chem 2024; 442:138488. [PMID: 38244438 DOI: 10.1016/j.foodchem.2024.138488] [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: 12/30/2023] [Accepted: 01/15/2024] [Indexed: 01/22/2024]
Abstract
The Maillard conjugation of hemp protein with d-xylose was studied, focusing on the influence of ultrasonic waves, processing time, and pressure. Cavitation-driven processes, including ultrasonication (US) and manothermosonication (MTS), were found to impact the degree of grafting, functional characteristics, and structural alterations, affecting conjugation efficiency. The glycation of hemp protein with xylose assisted with US and MTS was investigated under varying pressures. MTS- and US-assisted glycation processes result in 4.22- and 1.64-fold higher degrees of grafting compared to the classical method within a short time frame. The MTS procedures also improved solubility (+3.6-fold), emulsion (+15-fold), and foaming (+1.7-fold) properties, especially at optimized pressure levels, compared to classical conjugates. Furthermore, the complexation of MTS-assisted conjugates with curcumin (Cur) enhanced Cur stability by more than 1.4-fold compared to the classical procedure during 20-day storage at 4 oC. The findings suggest potential applications in the pharmaceutical industry, active dairy/meat analog development, and gel formulation.
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Affiliation(s)
- Gulsah Karabulut
- Department of Food Engineering, Sakarya University, 54187 Sakarya, Turkey.
| | - Hao Feng
- Department of Family and Consumer Sciences, North Carolina A&T State University, Greensboro, NC 27401, USA; Department of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
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10
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Xu L, Wang Y, Yang Y, Qiu C, Jiao A, Jin Z. Pea protein/carboxymethyl cellulose complexes prepared using a pH cycle strategy as stabilizers of high internal phase emulsions for 3D printing. Int J Biol Macromol 2024; 269:131967. [PMID: 38692528 DOI: 10.1016/j.ijbiomac.2024.131967] [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: 10/20/2023] [Revised: 04/26/2024] [Accepted: 04/27/2024] [Indexed: 05/03/2024]
Abstract
The development of food-grade high internal phase emulsions (HIPEs) for 3D printing and the replacement of animal fats have attracted considerable attention. In this study, in order to improve the rheological properties and stability of pea protein to prepare HIPE, pea protein/carboxymethyl cellulose (pH-PP/CMC) was prepared and subjected to pH cycle treatment to produce HIPEs. The results showed that pH cycle treatment and CMC significantly reduced the droplet size of HIPEs (from 143.33 to 12.10 μm). At higher CMC concentrations, the interfacial tension of the PP solution decreased from 12.84 to 11.71 mN/m without pH cycle treatment and to 10.79 mN/m with pH cycle treatment. The HIPEs with higher CMC concentrations subjected to pH cycle treatment showed shear thinning behavior and higher viscoelasticity and recovered their solid-like properties after being subjected to 50 % strain, indicating that they could be used for 3D printing. The 3D printing results showed that the pH-PP/CMC HIPE with 0.3 % CMC had the finest structure. Our work provides new insights into developing food-grade HIPEs and facilitating their use in 3D printing inks as nutrient delivery systems and animal fat substitutes.
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Affiliation(s)
- Liangyun Xu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province 214122, China
| | - Yihui Wang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province 214122, China
| | - Yueyue Yang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province 214122, China
| | - Chao Qiu
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province 214122, China
| | - Aiquan Jiao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province 214122, China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi 214122, China.
| | - Zhengyu Jin
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province 214122, China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi 214122, China
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11
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Yan X, Bai X, Liu X, Liu F. Enhanced functional properties of pea protein isolate microgel particles modified with sodium alginate: Mixtures and conjugates. Food Chem 2024; 441:138358. [PMID: 38266315 DOI: 10.1016/j.foodchem.2024.138358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 10/29/2023] [Accepted: 01/01/2024] [Indexed: 01/26/2024]
Abstract
Protein microgels are emerging as versatile soft particles due to their desirable interfacial activities and functional properties. In this study, pea protein isolate microgel particles (PPIMP) were prepared by heat treatment and transglutaminase crosslinking, and PPIMP were non-covalently and covalently modified with sodium alginate (SA). The effects of polymer ratio and pH on the formation of PPIMP-SA mixtures and conjugates were investigated. The optimal ratio of PPIMP and SA was found to be 20:1, with the optimal pH being 7 and 10, respectively. PPIMP-SA conjugates were prepared by Maillard reaction. It was found that ultrasound (195 W, 40 min) enhanced the degree of glycation of PPIMP, with a highest value of 37.21 ± 0.71 %. SDS-PAGE, browning intensity and FTIR data also confirmed the formation of PPIMP-SA conjugates. Compared with PPIMP and PPIMP-SA mixtures, PPIMP-SA conjugates exhibited better thermal stability, antioxidant, emulsifying and foaming properties, which opens up opportunities for protein microgel in various food applications.
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Affiliation(s)
- Xiaojia Yan
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, China
| | - Xiangqi Bai
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, China
| | - Xuebo Liu
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, China
| | - Fuguo Liu
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, China.
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12
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Li K, Wang J, Zhao P, Julian McClements D, Liu X, Liu F. Effect of ultrasound-assisted Maillard reaction on glycosylation of goat whey protein: Structure and functional properties. Food Chem 2024; 441:138292. [PMID: 38183717 DOI: 10.1016/j.foodchem.2023.138292] [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: 10/22/2023] [Revised: 12/20/2023] [Accepted: 12/25/2023] [Indexed: 01/08/2024]
Abstract
Goat whey protein (GWP) has a rich amino acid profile and good techno-functional attributes but still has limited functional performance for certain applications. This study introduces an innovative ultrasound-assisted Maillard reaction to enhance GWP's functional properties by conjugating it with either gum Arabic (GA) or citrus pectin (CP). Sonication accelerated the Maillard reaction, and the glycosylation of GWP was significantly enhanced after optimization of the conjugation conditions. Gel electrophoresis examination verified the creation of GWP-polysaccharide conjugates, while scanning electron microscopy analysis revealed structural modifications caused by polysaccharide grafting and sonication. The use of ultrasound in the Maillard reaction notably enhanced the solubility, foaming capacity, and emulsifying attributes of the GWPs. Among the conjugates, the GWP-GA ones exhibited the best functional properties. Our findings suggest that this approach can notably improve the functional attributes of GWPs, thus broadening their potential uses in the food sector and beyond.
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Affiliation(s)
- Kun Li
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, PR China
| | - Jiangyue Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, PR China
| | - Pengfei Zhao
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, PR China
| | | | - Xuebo Liu
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, PR China
| | - Fuguo Liu
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, PR China.
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13
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Ji H, Wang Q, Wang X, Zhang L, Yang P. Pea protein-inulin conjugate prepared by atmospheric pressure plasma jet combined with glycosylation: structure and emulsifying properties. Front Nutr 2024; 11:1416753. [PMID: 38826578 PMCID: PMC11140046 DOI: 10.3389/fnut.2024.1416753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2024] [Accepted: 05/06/2024] [Indexed: 06/04/2024] Open
Abstract
Pea protein is one of plant proteins with high nutritional value, but its lower solubility and poor emulsifying properties limit its application in food industry. Based on wet-heating glycosylation of pea protein and inulin, effects of discharge power of atmospheric pressure plasma jet (APPJ) on structure, solubility, and emulsifying ability of pea protein-inulin glycosylation conjugate were explored. Results indicated that the APPJ discharge power did not affect the primary structure of pea protein. However, changes in secondary and spatial structure of pea protein were observed. When APPJ discharge power was 600 W, the solubility of glycosylation conjugate was 75.0% and the emulsifying stability index was 98.9 min, which increased by 14.85 and 21.95% than that of only glycosylation sample, respectively. These findings could provide technical support for APPJ treatment combination with glycosylation to enhance the physicochemical properties of plant-based proteins.
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Affiliation(s)
| | | | | | - Lingwen Zhang
- School of Food Science, Henan Institute of Science and Technology, Xinxiang, China
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14
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Li S, Zhu Y, Hao X, Su H, Chen X, Yao Y. High internal phase Pickering emulsions stabilized by the complexes of ultrasound-treated pea protein isolate/mung bean starch for delivery of β-carotene. Food Chem 2024; 440:138201. [PMID: 38104448 DOI: 10.1016/j.foodchem.2023.138201] [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: 08/17/2023] [Revised: 11/20/2023] [Accepted: 12/10/2023] [Indexed: 12/19/2023]
Abstract
High internal phase Pickering emulsions (HIPPEs) stabilized by edible colloid particles have gained great interest. In this study, ultrasound-treated pea protein isolate and mung bean starch complexes (UPPI/MS) were prepared and used in stabilization of HIPPEs. The emulsifying properties of UPPI/MS were found to be superior to those of pea protein isolate (PPI), as evidenced by a smaller particle size and higher surface hydrophobicity. HIPPEs stabilized by UPPI/MS displayed a higher viscoelastic and gel-like structure. Low-Field NMR (LF-NMR) revealed that HIPPEs stabilized by UPPI60/MS (UPPI60/MS-HIPPEs) showed better ability to restrict the mobility of water. UPPI60/MS-HIPPEs also revealed the best environmental stability attributed a stronger three-dimensional network structure. Encapsulation of β-carotene within HIPPEs resulted in improving stability, with UPPI60/MS-HIPPEs exhibiting the highest retention rate of 73.58 %. Moreover, β-carotene encapsulated in HIPPEs displayed enhanced bioaccessibility, with UPPI60/MS-HIPPEs achieving the highest value of 25.37 %. This research highlighted the potential of UPPI60/MS complexes as effective stabilizers for HIPPEs and provided new insights on HIPPEs in nutrient delivery systems.
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Affiliation(s)
- Shiyu Li
- Key Laboratory of Grain Crop Genetic Resources Evaluation and Utilization, Ministry of Agriculture and Rural Affairs, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
| | - Yingying Zhu
- College of Food and Bioengineering, Henan Key Laboratory of Cold Chain Food Quality and Safety Control, Zhengzhou University of Light Industry, Zhengzhou 450001, China.
| | - Xiyu Hao
- Heilongjiang Feihe Dairy Co., Ltd., C-16, Beijing 100015, China.
| | - Hang Su
- Key Laboratory of Grain Crop Genetic Resources Evaluation and Utilization, Ministry of Agriculture and Rural Affairs, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
| | - Xin Chen
- Institute of Industrial Crops, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China.
| | - Yang Yao
- Key Laboratory of Grain Crop Genetic Resources Evaluation and Utilization, Ministry of Agriculture and Rural Affairs, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
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15
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Dumitrașcu L, Brumă (Călin) M, Turturică M, Enachi E, Cantaragiu Ceoromila AM, Aprodu I. Ultrasound-Assisted Maillard Conjugation of Yeast Protein Hydrolysate with Polysaccharides for Encapsulating the Anthocyanins from Aronia. Antioxidants (Basel) 2024; 13:570. [PMID: 38790675 PMCID: PMC11117535 DOI: 10.3390/antiox13050570] [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: 03/25/2024] [Revised: 04/29/2024] [Accepted: 05/02/2024] [Indexed: 05/26/2024] Open
Abstract
Valorisation of food by-products, like spent brewer's yeast and fruit pomaces, represents an important strategy for contributing to sustainable food production. The aims of this study were to obtain Maillard conjugates based on spent yeast protein hydrolysate (SYH) with dextran (D) or maltodextrin (MD) by means of ultrasound treatment and to use them for developing encapsulation systems for the anthocyanins from aronia pomace. The ultrasound-assisted Maillard conjugation promoted the increase of antioxidant activity by about 50% compared to conventional heating and SYH, and was not dependent on the polysaccharide type. The ability of the conjugates to act as wall material for encapsulating various biologically active compounds was tested via a freeze-drying method. The retention efficiency ranged between 58.25 ± 0.38%-65.25 ± 2.21%, while encapsulation efficiency varied from 67.09 ± 2.26% to 88.72 ± 0.33%, indicating the strong effect of the carrier material used for encapsulation. The addition of the hydrolysed yeast cell wall played a positive effect on the encapsulation efficiency of anthocyanins when used in combination with the SYH:MD conjugates. On the other hand, the stability of anthocyanins during storage, as well as their bioavailability during gastrointestinal digestion, were higher when using the SYH:D conjugate. The study showed that hydrolysis combined with the ultrasound-assisted Maillard reaction has a great potential for the valorisation of spent brewer's yeast as delivery material for the encapsulation of bioactive compounds.
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Affiliation(s)
- Loredana Dumitrașcu
- Faculty of Food Science and Engineering, Dunarea de Jos University of Galati, Domnească Street 111, 800201 Galați, Romania; (L.D.); (M.B.); (M.T.); (E.E.)
| | - Mihaela Brumă (Călin)
- Faculty of Food Science and Engineering, Dunarea de Jos University of Galati, Domnească Street 111, 800201 Galați, Romania; (L.D.); (M.B.); (M.T.); (E.E.)
| | - Mihaela Turturică
- Faculty of Food Science and Engineering, Dunarea de Jos University of Galati, Domnească Street 111, 800201 Galați, Romania; (L.D.); (M.B.); (M.T.); (E.E.)
| | - Elena Enachi
- Faculty of Food Science and Engineering, Dunarea de Jos University of Galati, Domnească Street 111, 800201 Galați, Romania; (L.D.); (M.B.); (M.T.); (E.E.)
- Faculty of Medicine and Pharmacy, Dunarea de Jos University of Galati, 35 A.I. Cuza Str., 800010 Galaţi, Romania
| | | | - Iuliana Aprodu
- Faculty of Food Science and Engineering, Dunarea de Jos University of Galati, Domnească Street 111, 800201 Galați, Romania; (L.D.); (M.B.); (M.T.); (E.E.)
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16
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Wang M, Yang S, Sun N, Zhu T, Lian Z, Dai S, Xu J, Tong X, Wang H, Jiang L. Soybean isolate protein complexes with different concentrations of inulin by ultrasound treatment: Structural and functional properties. ULTRASONICS SONOCHEMISTRY 2024; 105:106864. [PMID: 38581796 PMCID: PMC11004718 DOI: 10.1016/j.ultsonch.2024.106864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 02/28/2024] [Accepted: 03/28/2024] [Indexed: 04/08/2024]
Abstract
The effects of ultrasound and different inulin (INU) concentrations (0, 10, 20, 30, and 40 mg/mL) on the structural and functional properties of soybean isolate protein (SPI)-INU complexes were hereby investigated. Fourier transform infrared spectroscopy showed that SPI was bound to INU via hydrogen bonding. All samples showed a decreasing and then increasing trend of α-helix content with increasing INU concentration. SPI-INU complexes by ultrasound with an INU concentration of 20 mg/mL (U-2) had the lowest content of α-helix, the highest content of random coils and the greatest flexibility, indicating the proteins were most tightly bound to INU in U-2. Both UV spectroscopy and intrinsic fluorescence spectroscopy indicated that it was hydrophobic interactions between INU and SPI. The addition of INU prevented the exposure of tryptophan and tyrosine residues to form a more compact tertiary structure compared to SPI alone, and ultrasound caused further unfolding of the structure of SPI. This indicated that the combined effect of ultrasound and INU concentration significantly altered the tertiary structure of SPI. SDS-PAGE and Native-PAGE displayed the formation of complexes through non-covalent interactions between SPI and INU. The ζ-potential and particle size of U-2 were minimized to as low as -34.94 mV and 110 nm, respectively. Additionally, the flexibility, free sulfhydryl groups, solubility, emulsifying and foaming properties of the samples were improved, with the best results for U-2, respectively 0.25, 3.51 μmoL/g, 55.51 %, 269.91 %, 25.90 %, 137.66 % and 136.33 %. Overall, this work provides a theoretical basis for improving the functional properties of plant proteins.
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Affiliation(s)
- Mengmeng Wang
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Sai Yang
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Na Sun
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Tingting Zhu
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Ziteng Lian
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Shicheng Dai
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Jing Xu
- College of Arts and Sciences, Northeast Agricultural University, Harbin, Heilongjiang 150030, China.
| | - Xiaohong Tong
- College of Agriculture, Northeast Agricultural University, Harbin 150030, China.
| | - Huan Wang
- College of Food Science, Northeast Agricultural University, Harbin 150030, China.
| | - Lianzhou Jiang
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
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17
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Qin YQ, Fan YG, Ren JN, Wang LY, Han NF, Fan G. Structural and functional properties of whey protein isolate-inulin conjugates prepared with ultrasound or wet heating method. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024. [PMID: 38655901 DOI: 10.1002/jsfa.13549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 03/25/2024] [Accepted: 04/24/2024] [Indexed: 04/26/2024]
Abstract
BACKGROUND Whey protein isolate (WPI) generally represents poor functional properties such as thermal stability, emulsifying activity and antioxidant activity near its isoelectric point or high temperatures, which limit its application in the food industry. The preparation of WPI-polysaccharide covalent conjugates based on Maillard reaction is a promising method to improve the physical and chemical stability and functional properties of WPI. In this research, WPI-inulin conjugates were prepared through wet heating method and ultrasound method and their structural and functional properties were examined. RESULTS In conjugates, the free amino acid content was reduced, the high molecular bands were emerged at sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE), new C-N bonds were formed in Fourier-transform infrared (FTIR) spectroscopy, and fluorescence intensity was reduced compared with WPI. Furthermore, the result of circular dichroism (CD) spectroscopy also showed that the secondary structure of conjugates was changed. Conjugates with ultrasound treatment had better structural properties compared with those prepared by wet heating treatment. The functional properties such as thermal stability, emulsifying activity index (EAI), emulsion stability (ES) and antioxidant activity of conjugates with wet heating treatment were significantly improved compared with WPI. The EAI and ES of conjugates with ultrasound treatment were the highest, but the thermal stability and antioxidant activity were only close to that of the conjugates with wet heating treatment for 2 h. CONCLUSION This study revealed that WPI-inulin conjugates prepared with ultrasound or wet heating method not only changed the structural characteristics of WPI but also could promote its functional properties including thermal stability, EAI, ES and antioxidant activity. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Yu-Qing Qin
- College of Food Science and Technology, Huazhong Agricultural University, Key Laboratory of Environment Correlative Dietology of Ministry of Education, Wuhan, China
| | - Yan-Ge Fan
- Institute of Chemistry Co. Ltd, Henan Academy of Sciences, Zhengzhou, China
| | - Jing-Nan Ren
- College of Food Science and Technology, Huazhong Agricultural University, Key Laboratory of Environment Correlative Dietology of Ministry of Education, Wuhan, China
| | - Liu-Yan Wang
- College of Food Science and Technology, Huazhong Agricultural University, Key Laboratory of Environment Correlative Dietology of Ministry of Education, Wuhan, China
| | - Nan-Feng Han
- Institute of Chemistry Co. Ltd, Henan Academy of Sciences, Zhengzhou, China
| | - Gang Fan
- College of Food Science and Technology, Huazhong Agricultural University, Key Laboratory of Environment Correlative Dietology of Ministry of Education, Wuhan, China
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18
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Xu H, Pan J, Ma C, Dabbour M, Mintah BK, Huang L, Dai C, Ma H, He R. Effect of carbonyl-amino condensation, non-covalent cross-linking and conformational changes induced by ultrasound-assisted Maillard reaction on lysinoalanine formation in silkworm pupa protein. Int J Biol Macromol 2024; 263:130480. [PMID: 38423436 DOI: 10.1016/j.ijbiomac.2024.130480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 02/20/2024] [Accepted: 02/26/2024] [Indexed: 03/02/2024]
Abstract
The inhibition of cross-linked lysinoalanine (LAL) formation in silkworm pupa protein isolates (SPPI) by Maillard reaction (using varying xylose concentration) and ultrasound treatment was studied. Results showed that sonicated SPPI was effectively grafted with high concentration of xylose (5 %), resulting in the lowest LAL content, which was 48.75 % and 30.64 % lower than the control and ultrasound-treated samples, respectively. Chemical bond analysis showed that the combined treatment destroyed the ionic bonds, intrachain (g-g-t), and interchain (g-g-g) disulfide bonds, but stimulated the polymerization of hydrogen and hydrophobic bonds between SPPI and xylose, and as well enhanced the net negative charge between SPPI/Xylose complexes. The particles of the complexes were more loose, dispersed and rough, and had a stronger hydrophilic microenvironment, accompanied by alterations in microscopic, secondary and tertiary structures. Ultrasound treatment induced the breakdown of the oxidative cross-linking in SPPI, and promoted the sulfhydryl group-dehydroalanine binding and the carbonyl-amino condensation of the protein and xylose, and thus inhibited the formation of cross-linked LAL. Furthermore, the physicochemical and structural parameters were highly interrelated with cross-linked LAL content (|r| > 0.9). The outcomes provided a novel avenue and theoretical basis for minimizing LAL formation in SPPI and improving the nutrition and safety of SPPI.
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Affiliation(s)
- Haining Xu
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China; Institute of Food Physical Processing, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China
| | - Jiayin Pan
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China; Institute of Food Physical Processing, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China
| | - Chunfang Ma
- Shandong Yuwang Ecological Food Industry, Yucheng 251200, China
| | - Mokhtar Dabbour
- Department of Agricultural and Biosystems Engineering, Faculty of Agriculture, Benha University, P.O. Box 13736, Moshtohor, Qaluobia, Egypt
| | | | - Liurong Huang
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China; Institute of Food Physical Processing, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China
| | - Chunhua Dai
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China; Institute of Food Physical Processing, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China
| | - Haile Ma
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China; Institute of Food Physical Processing, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China
| | - Ronghai He
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China; Institute of Food Physical Processing, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China.
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19
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Alrosan M, Madi Almajwal A, Al-Qaisi A, Gammoh S, H. Alu'datt M, R. Al Qudsi F, Tan TC, A. Razzak Mahmood A, Maghaydah S. Molecular forces driving protein complexation of lentil and whey proteins: Structure-function relationships of trehalose-conjugated protein complexes on protein digestibility and solubility. Curr Res Struct Biol 2024; 7:100135. [PMID: 38516624 PMCID: PMC10955282 DOI: 10.1016/j.crstbi.2024.100135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 02/20/2024] [Accepted: 02/22/2024] [Indexed: 03/23/2024] Open
Abstract
Plant-based proteins are often associated with a range of health benefits. Most research primarily investigates pea and soy proteins, while lentil proteins received minimal attention. This study evaluates the effect of protein complexation (using the pH-shifting technique) coupled with trehalose conjugation on lentil and whey proteins. The protein structures after the modification were analysed using spectroscopic methods: Fourier-transform infrared, ultraviolet spectra, and fluorescence spectra. The amide group I, conformation protein, and tertiary structure of the trehalose-conjugated lentil-whey protein complexes (T-LWPs) showed significant changes (P < 0.05). Moreover, the surface properties (surface hydrophobicity and charges) of T-LWPs were significantly modified (P < 0.05), from 457 to 324 a.u and from 36 to -40 mV, respectively. Due to these modifications on the protein structures, the protein digestibility (80-86%) and water solubility (90-94.5%) of T-LWPs increased significantly (P < 0.05) with the increase in the trehalose concentration, from 0 (control) to 5% (w/w), respectively. This study suggested that coupling protein complexation and trehalose conjugation can enhance the overall properties of lentil-based protein complexes. With this enhancement, more opportunities in the utilisation of lentils are to be expected.
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Affiliation(s)
- Mohammad Alrosan
- Food Technology Division, School of Industrial Technology, Universiti Sains Malaysia, 11800, USM, Penang, Malaysia
- Applied Science Research Center, Applied Science Private University, Al-Arab St. 21, Amman, 11931, Jordan
- Department of Nutrition and Food Science, Faculty of Agriculture, Jerash University, Jerash, Jordan
- College of Health Science, QU Health, Qatar University, Doha P.O. Box 2713, Qatar
| | - Ali Madi Almajwal
- Department of Community Health Sciences, College of Applied Medical Sciences, King Saud University, P.O. Box 10219, Riyadh, 11433, Saudi Arabia
| | - Ali Al-Qaisi
- Department of Agricultural Biotechnology, Faculty of Agricultural Sciences and Technology, Palestine Technical University-Kadoorie (PTUK), Jaffa Street, Tulkarm P.O. Box 7, Palestine
| | - Sana Gammoh
- Department of Nutrition and Food Technology, Faculty of Agriculture, Jordan University of Science and Technology, P.O. Box 3030, Irbid, 22110, Jordan
| | - Muhammad H. Alu'datt
- Department of Nutrition and Food Technology, Faculty of Agriculture, Jordan University of Science and Technology, P.O. Box 3030, Irbid, 22110, Jordan
- Department of Food Science & Nutrition, College of Life Sciences, Kuwait University, P.O. Box. 5969, Safat, 13060, Kuwait
| | - Farah R. Al Qudsi
- Department of Food Science, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
| | - Thuan-Chew Tan
- Food Technology Division, School of Industrial Technology, Universiti Sains Malaysia, 11800, USM, Penang, Malaysia
| | - Ammar A. Razzak Mahmood
- Department of Pharmaceutical Chemistry, College of Pharmacy-University of Baghdad, Baghdad, Bab-Al-Mouadam, 10001, Iraq
| | - Sofyan Maghaydah
- Department of Nutrition and Food Technology, Faculty of Agriculture, Jordan University of Science and Technology, P.O. Box 3030, Irbid, 22110, Jordan
- Department of Human Nutrition and Dietetics, College of Health Sciences, Abu Dhabi University, Zayed City, Abu Dhabi, P.O. Box 59911, United Arab Emirates
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20
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Gao K, Xu Y, Rao J, Chen B. Maillard reaction between high-intensity ultrasound pre-treated pea protein isolate and glucose: Impact of reaction time and pH on the conjugation process and the properties of conjugates. Food Chem 2024; 434:137486. [PMID: 37725841 DOI: 10.1016/j.foodchem.2023.137486] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 09/11/2023] [Accepted: 09/12/2023] [Indexed: 09/21/2023]
Abstract
In this study, pea protein isolate was pretreated with high intensity ultrasound (HIUS) at 300 W for 5 min. The Maillard reaction (MR) between the pretreated sample (UPPI) and glucose were performed by heating (80 °C) of their aqueous dispersion at various time (0, 6, 12, 18, and 24 h) and pH (6.0, 8.0, 10.0, and 12.0). According to browning index and glucose depletion, the conjugation between UPPI and glucose through MR was not markedly accelerated compared to PPI. FTIR and intrinsic/extrinsic fluorescence spectroscopy showed that HIUS pretreatment could alter secondary and tertiary structures of PPI. HIUS pretreatment coupled with MR increased hydrophobicity and particle size of UPPI-glucose conjugates. Solubility of UPPI and PPI was improved after MR; but the increment of former was lower than the latter. This study suggests that HIUS pretreatment is an effective method to improve the solubility of PPI regardless of the subsequent MR.
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Affiliation(s)
- Kun Gao
- Department of Plant Sciences, North Dakota State University, Fargo, ND 58108, USA
| | - Yixiang Xu
- Healthy Processed Foods Research Unit, Western Regional Research Center, USDA-ARS, Albany, CA 94710, USA
| | - Jiajia Rao
- Department of Plant Sciences, North Dakota State University, Fargo, ND 58108, USA
| | - Bingcan Chen
- Department of Plant Sciences, North Dakota State University, Fargo, ND 58108, USA.
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21
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Gao K, Rao J, Chen B. Plant protein solubility: A challenge or insurmountable obstacle. Adv Colloid Interface Sci 2024; 324:103074. [PMID: 38181662 DOI: 10.1016/j.cis.2023.103074] [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: 08/22/2023] [Revised: 10/26/2023] [Accepted: 12/22/2023] [Indexed: 01/07/2024]
Abstract
Currently, there is an increasing focus on comprehending the solubility of plant-based proteins, driven by the rising demand for animal-free food formulations. The solubility of proteins plays a crucial role in impacting other functional properties of proteins and food processing. Consequently, understanding protein solubility in a deeper sense may allow a better usage of plant proteins. Herein, we discussed the definition of protein solubility from both thermodynamic and colloidal perspectives. A range of factors affecting solubility of plant proteins are generalized, including intrinsic factors (amino acids composition, hydrophobicity), and extrinsic factors (pH, ionic strength, extraction and drying methods). Current methods to enhance solubility are outlined, including microwave, high intensity ultrasound, hydrostatic pressure, glycation, pH-shifting, enzymatic hydrolysis, enzymatic cross-linking, complexation and modulation of amino acids. We base the discussion on diverse modified methods of nitrogen solubility index available to determine and analyze protein solubility followed by addressing how other indigenous components affect the solubility of plant proteins. Some nonproteinaceous constituents in proteins such as carbohydrates and polyphenols may exert positive or negative impact on protein solubility. Appropriate protein extraction and modification methods that meet consumer and manufacturers requirements concerning nutritious and eco-friendly foods with lower cost should be investigated and further explored.
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Affiliation(s)
- Kun Gao
- Department of Plant Sciences, North Dakota State University, Fargo, ND 58108, USA
| | - Jiajia Rao
- Department of Plant Sciences, North Dakota State University, Fargo, ND 58108, USA
| | - Bingcan Chen
- Department of Plant Sciences, North Dakota State University, Fargo, ND 58108, USA.
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22
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Zhao R, Fu W, Li D, Dong C, Bao Z, Wang C. Structure and functionality of whey protein, pea protein, and mixed whey and pea proteins treated by pH shift or high-intensity ultrasound. J Dairy Sci 2024; 107:726-741. [PMID: 37777001 DOI: 10.3168/jds.2023-23742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Accepted: 09/05/2023] [Indexed: 10/02/2023]
Abstract
Three modifications (pH shift, ultrasound, combined pH shift and ultrasound) induced alterations in pure whey protein isolate (WPI), pea protein isolate (PPI), and mixed whey and pea protein (WPI-PPI) were investigated. The processing effect was related to the protein type and technique used. Solubility of WPI remained unchanged by various treatments. Particle size was enlarged by pH shift while reduced by ultrasound and combined approach. All methods exposed more surface hydrophobic groups on WPI, while pH shift and joint processing was detrimental to its emulsifying activity. The PPI and mixture exhibited similar responses toward the modifications. Solubility of PPI and the blend enhanced in the sequence of pH shift and ultrasound > ultrasound > pH shift. Individual approach expanded while co-handling diminished the particle diameter. Treatments also caused more disclosure of hydrophobic regions in PPI and WPI-PPI and emulsifying activity was ameliorated in the order of pH shift and ultrasound > ultrasound > pH shift.
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Affiliation(s)
- Ru Zhao
- Department of Food Science, College of Food Science and Engineering, Jilin University, Changchun, 130062, China
| | - Wenfei Fu
- Department of Food Science, College of Food Science and Engineering, Jilin University, Changchun, 130062, China
| | - Dan Li
- Department of Food Science, College of Food Science and Engineering, Jilin University, Changchun, 130062, China
| | - Chao Dong
- Key Laboratory of Pathobiology, Ministry of Education, Jilin University, Changchun 130021, China
| | - Zhaoxue Bao
- Hinggan League Mengyuan Technology Testing Service Co. Ltd., Ulanhot 137400, China
| | - Cuina Wang
- Department of Food Science, College of Food Science and Engineering, Jilin University, Changchun, 130062, China.
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23
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Gao K, Zha F, Rao J, Chen B. Nonenzymatic glycation as a tunable technique to modify plant proteins: A comprehensive review on reaction process, mechanism, conjugate structure, and functionality. Compr Rev Food Sci Food Saf 2024; 23:e13269. [PMID: 38284590 DOI: 10.1111/1541-4337.13269] [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: 07/27/2023] [Revised: 10/10/2023] [Accepted: 10/25/2023] [Indexed: 01/30/2024]
Abstract
Plant proteins are expected to become a major protein source to replace currently used animal-derived proteins in the coming years. However, there are always challenges when using these proteins due to their low water solubility induced by the high molecular weight storage proteins. One approach to address this challenge is to modify proteins through Maillard glycation, which involves the reaction between proteins and carbohydrates. In this review, we discuss various chemical methods currently available for determining the indicators of the Maillard reaction in the early stage, including the graft degree of glycation and the available lysine or sugar, which are involved in the very beginning of the reaction. We also provide a detailed description of the most popular methods for determining graft sites and assessing different plant protein structures and functionalities upon non-enzymatic glycation. This review offers valuable insights for researchers and food scientists in order to develop plant-based protein ingredients with improved functionality.
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Affiliation(s)
- Kun Gao
- Department of Plant Sciences, North Dakota State University, Fargo, North Dakota, USA
| | - Fengchao Zha
- Department of Plant Sciences, North Dakota State University, Fargo, North Dakota, USA
| | - Jiajia Rao
- Department of Plant Sciences, North Dakota State University, Fargo, North Dakota, USA
| | - Bingcan Chen
- Department of Plant Sciences, North Dakota State University, Fargo, North Dakota, USA
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24
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Wang XP, Wang CF, Zhao XQ, Ma MJ, Li ZH, Jiang H, Zhang XN, Yuan CZ. Comparison of milk protein concentrate, micellar casein, and whey protein isolate in loading astaxanthin after the treatment of ultrasound-assisted pH shifting. J Dairy Sci 2024; 107:141-154. [PMID: 37690728 DOI: 10.3168/jds.2023-23691] [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: 05/03/2023] [Accepted: 08/08/2023] [Indexed: 09/12/2023]
Abstract
Milk proteins can be used as encapsulation walls to increase the bioavailability of active compounds because they can bind hydrophobic, hydrophilic, and charged compounds. The objective of this study was to investigate the effects of astaxanthin (ASTA) encapsulation and the functional properties of milk protein and ASTA nanocomposites by an ultrasound-assisted pH-shifting treatment of different milk proteins, including milk protein concentrate (MPC), micellar casein (MCC), and whey protein isolate (WPI). The ultrasound-assisted pH-shifting treatment of milk protein helped to improve the encapsulation rate of ASTA. Therein, MCC showed great improvement of encapsulating ASTA after co-treatment with the raised encapsulated rate of 5.11%, followed by WPI and MPC. Furthermore, the nanocomposites of ASTA with milk protein exhibit improved bioavailability, antioxidant capacity, and storage stability. By comparison, MCC-encapsulated ASTA has the best storage stability, followed by MPC, and WPI-encapsulated ASTA has the least stability over a 28-d storage period. The results of intrinsic fluorescence and surface hydrophobicity showed that milk protein underwent fluorescence quenching after binding to ASTA, which was due to the hydrophobic sites of the protein being occupied by ASTA. In general, the nanocomposites of milk protein and ASTA fabricated by using an ultrasound-assisted pH-shifting treatment have the potential to be better nano-delivery systems for ASTA in functional foods, especially MCC, which showed excellent performance in encapsulation after treatment technique.
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Affiliation(s)
- X P Wang
- School of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Science), Jinan 250353, China
| | - C F Wang
- School of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Science), Jinan 250353, China.
| | - X Q Zhao
- School of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Science), Jinan 250353, China
| | - M J Ma
- School of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Science), Jinan 250353, China
| | - Z H Li
- School of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Science), Jinan 250353, China
| | - H Jiang
- School of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Science), Jinan 250353, China
| | - X N Zhang
- School of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Science), Jinan 250353, China
| | - C Z Yuan
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Ji'nan, 250012, China.
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25
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Ren J, Wu H, Lu Z, Qin Q, Jiao X, Meng G, Liu W, Li G. pH-driven preparation of pea protein isolate-curcumin nanoparticles effectively enhances antitumor activity. Int J Biol Macromol 2024; 256:128383. [PMID: 38000617 DOI: 10.1016/j.ijbiomac.2023.128383] [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: 08/02/2023] [Revised: 10/30/2023] [Accepted: 11/21/2023] [Indexed: 11/26/2023]
Abstract
Soluble pea protein isolate-curcumin nanoparticles were successfully prepared at a novel pH combination, with encapsulation efficiency and drug loading amount of 95.69 ± 1.63 % and 32.73 ± 0.56 μg/mg, respectively, resulting in >4000-fold increase in the water solubility of curcumin. The encapsulation propensity and interaction mechanism of pea protein isolates with curcumin and colchicine were comparatively evaluated by structural characterization, molecular dynamics simulations and molecular docking. The results showed that the nanoparticles formed by curcumin and colchicine with pea protein isolates were mainly driven by hydrogen bonding and hydrophobic interactions, and the binding process did not alter the secondary structure of pea protein. In contrast, pea protein isolate-curcumin nanoparticles exhibited smaller particle size, lower RMSD value, lower binding Gibbs free energy and greater structural stability. Therefore, pea protein isolate is a suitable encapsulation material for hydrophobic compounds. Furthermore, the pea protein isolate-curcumin nanoparticles showed remarkably enhanced antitumor activity, as evidenced by a significant reduction in IC50, and the anti-tumor mechanism of it involved the ROS-induced mitochondria-mediated caspase cascade apoptosis pathway. These findings provide insights into the development of pea protein-based delivery systems and the possibility of a broader application of curcumin in antitumor activity.
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Affiliation(s)
- Jie Ren
- Beijing Engineering Research Center of Protein & Functional Peptides, China National Research Institute of Food and Fermentation Industries, Beijing 100015, China
| | - Hanshuo Wu
- Beijing Engineering Research Center of Protein & Functional Peptides, China National Research Institute of Food and Fermentation Industries, Beijing 100015, China
| | - Zhihao Lu
- Beijing Engineering Research Center of Protein & Functional Peptides, China National Research Institute of Food and Fermentation Industries, Beijing 100015, China
| | - Qingyu Qin
- Engineering Laboratory for Agro Biomass Recycling & Valorizing, College of Engineering, China Agricultural University, Beijing 100083, China
| | - Xinru Jiao
- Beijing Engineering Research Center of Protein & Functional Peptides, China National Research Institute of Food and Fermentation Industries, Beijing 100015, China
| | - Ganlu Meng
- Beijing Engineering Research Center of Protein & Functional Peptides, China National Research Institute of Food and Fermentation Industries, Beijing 100015, China
| | - Wenying Liu
- Engineering Laboratory for Agro Biomass Recycling & Valorizing, College of Engineering, China Agricultural University, Beijing 100083, China.
| | - Guoming Li
- Beijing Engineering Research Center of Protein & Functional Peptides, China National Research Institute of Food and Fermentation Industries, Beijing 100015, China.
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26
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Gao K, Chang L, Xu Y, Rao J, Chen B. Water-soluble fraction of pea protein isolate is critical for the functionality of protein-glucose conjugates obtained via wet-heating Maillard reaction. Food Res Int 2023; 174:113503. [PMID: 37986502 DOI: 10.1016/j.foodres.2023.113503] [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: 07/27/2023] [Revised: 09/15/2023] [Accepted: 09/22/2023] [Indexed: 11/22/2023]
Abstract
Wet-heating Maillard reaction (MR) has been applied to improve the function of proteins by conjugating with soluble carbohydrates. However, the impact of soluble solutes particularly in plant protein on the degree of MR and the properties of the corresponding conjugates has yet to be discussed. In this study, high-intensity ultrasound (HIUS) was utilized to pretreat commercial pea protein isolate in order to improve its solubility. Two different fractions including soluble fraction (SUPPI) and whole solution (UPPI) of HIUS treated PPI were conjugated with glucose (G) to prepare SUPPI-G and UPPI-G, respectively, over a course of 24 h wet-heating at 80 °C. Conjugation was confirmed by the degree of glycation, SDS-PAGE, FTIR, and intrinsic fluorescence analysis. Color change and glucose content analysis showed that the degree of MR was greater when using SUPPI rather than UPPI. The solubility of SUPPI-G was further improved by 24 h of MR while it remained unchanged for UPPI-G. The emulsifying activity index and foaming capability of SUPPI-G were similar to those of UPPI-G. Interfacial properties determined by dynamic adsorption and dilatational rheology at both oil-water and air-water interface suggested that insoluble fraction of UPPI is essential to make stable emulsions and foams. In conclusion, the proportion of soluble protein in PPI is critical to its wet-heating MR based conjugation with glucose and the solubility of the conjugates.
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Affiliation(s)
- Kun Gao
- Department of Plant Sciences, North Dakota State University, Fargo, ND 58108, USA
| | - Liuyi Chang
- Department of Plant Sciences, North Dakota State University, Fargo, ND 58108, USA
| | - Yixiang Xu
- Healthy Processed Foods Research Unit, Western Regional Research Center, USDA-ARS, Albany, CA 94710, USA
| | - Jiajia Rao
- Department of Plant Sciences, North Dakota State University, Fargo, ND 58108, USA
| | - Bingcan Chen
- Department of Plant Sciences, North Dakota State University, Fargo, ND 58108, USA.
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27
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Dumitrașcu L, Borda D, Aprodu I. Alternative Processing Options for Improving the Proteins Functionality by Maillard Conjugation. Foods 2023; 12:3588. [PMID: 37835241 PMCID: PMC10572503 DOI: 10.3390/foods12193588] [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: 08/28/2023] [Revised: 09/18/2023] [Accepted: 09/25/2023] [Indexed: 10/15/2023] Open
Abstract
Conjugation of the proteins with carbohydrates, occurring in the early stages of the Maillard reactions, received increased attention because of the high potential to ensure the improvement of the biological activity and functional properties of the proteins of different origins. The Maillard conjugates are conventionally formed through wet or dry heating, but the use of alternative technologies involving ultrasound, microwave, pulsed electric fields, high-pressure, or electrodynamic treatments appears to be efficient in accelerating the reaction steps and limiting the formation of toxic compounds. An overview of the mechanisms of these processing technologies, the main parameters influencing the Maillard conjugate formation, as well as their advantages and disadvantages, is provided in this paper. Different strategies employing these alternative technologies are reported in the literature: as pretreatment of the proteins, either alone or in admixture with the carbohydrates, followed by conventional heating, as a single alternative treatment step, or as a combination of heating and alternative processing. The desired functional properties of the proteins can be achieved by selecting the appropriate processing strategy and optimizing the reaction parameters. Moreover, alternative technologies can be exploited to obtain Maillard conjugates with remarkable biological activity in terms of antioxidant, antimicrobial, antihypertensive, anti-inflammatory, antimutagenic, or bifidogenic properties.
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Affiliation(s)
| | | | - Iuliana Aprodu
- Faculty of Food Science and Engineering, Dunarea de Jos University of Galati, 111 Domneasca Str., 800008 Galati, Romania; (L.D.); (D.B.)
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28
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Kim YY, Kim HM, Jeong SG, Yang JE, Kim S, Park HW. Sonochemical application reduces monosaccharide levels and improves cryoprotective effect of Jerusalem artichoke extract on Leuconostoc mesenteroides WiKim33 during freeze-drying. ULTRASONICS SONOCHEMISTRY 2023; 95:106413. [PMID: 37088026 PMCID: PMC10457581 DOI: 10.1016/j.ultsonch.2023.106413] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 04/04/2023] [Accepted: 04/17/2023] [Indexed: 05/03/2023]
Abstract
Lactic acid bacteria (LAB) are being used for probiotic and starter cultures to prevent global damage to microbial cells. To retain the benefits of LAB in the commercially used powdered form, highly efficient cryoprotective agents are required during the manufacturing process. This study suggests a novel cryoprotective agent derived from Jerusalem artichoke (JA; Helianthus tuberous L.) and describes the mechanism of cryoprotective effect improvement by sonication treatment. The cryoprotective effect of JA extract was verified by examining the viability of Leuconostoc mesenteroides WiKim33 after freeze-drying (FD). Sonication of JA extract improved the cryoprotective effect. Sonication reduced fructose and glucose contents, which increased the induction of critical damage during FD by 15.84% and 46.81%, respectively. The cryoprotective effects of JA and sonication-treated JA extracts were determined using the viable cell count of Leu. mesenteroides WiKim33. Immediately after FD and storage for 24 weeks, the viability of Leu. mesenteroides WiKim33 with JA extract was 82.8% and 76.3%, respectively, while that of the sonication-treated JA extract was 95.2% and 88.8%, respectively. Our results show that reduction in specific monosaccharides was correlated with improved cryoprotective effect. This study adopted sonication as a novel treatment for improving the cryoprotective effect and verified its efficiency.
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Affiliation(s)
- Yeong Yeol Kim
- Technology Innovation Research Division, World Institute of Kimchi, Gwangju 61755, Republic of Korea; Department of Integrative Food, Bioscience and Biotechnology, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Ho Myeong Kim
- Technology Innovation Research Division, World Institute of Kimchi, Gwangju 61755, Republic of Korea
| | - Seul-Gi Jeong
- Technology Innovation Research Division, World Institute of Kimchi, Gwangju 61755, Republic of Korea
| | - Jung Eun Yang
- Technology Innovation Research Division, World Institute of Kimchi, Gwangju 61755, Republic of Korea
| | - Seulbi Kim
- Technology Innovation Research Division, World Institute of Kimchi, Gwangju 61755, Republic of Korea; Division of Applied Bioscience & Biotechnology, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Hae Woong Park
- Technology Innovation Research Division, World Institute of Kimchi, Gwangju 61755, Republic of Korea.
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29
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Bing SJ, Li YQ, Sun GJ, Wang CY, Liang Y, Hua DL, Chen L, Mo HZ. Effect of different acidic or alkaline environments on structural characteristics, functional and physicochemical properties of lentinus edodes protein. Process Biochem 2023. [DOI: 10.1016/j.procbio.2023.04.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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30
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Zhang J, Zhao S, Li L, Kong B, Liu H. High Internal Phase Emulsions Stabilized by Pea Protein Isolate Modified by Ultrasound Combined with pH-Shifting: Micromorphology, Rheology, and Physical Stability. Foods 2023; 12:foods12071433. [PMID: 37048254 PMCID: PMC10093400 DOI: 10.3390/foods12071433] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 03/21/2023] [Accepted: 03/24/2023] [Indexed: 03/30/2023] Open
Abstract
In this study, the interfacial behavior of high internal phase emulsions (HIPEs), stabilized by ultrasound combined with pH-shifting modified pea protein isolate (MPPI), was investigated, and its emulsification process and stabilization mechanism were discussed. The effects of MPPI concentration on the micromorphology, droplet size, rheology, and stability of HIPEs were investigated. As the MPPI concentration increased, the appearance of HIPEs gradually changed from a relatively fluid state to a plastic solid-like state with detailed texture. There occurred a gradual decrease in droplet size, the cohering of an orderly and tight arrangement, in addition to the formation of a bilayer elastic interface layer. The macro- and microrheological assessments confirmed that the apparent viscosity, storage modulus, elasticity index, and macroscopic viscosity index increased gradually. Furthermore, it was demonstrated that 5 wt% MPPI-stabilized HIPEs had the potential to be used as 3D printing inks. Stability evaluation showed that the TURBISCAN stability index decreased and centrifugal stability increased. The appearance and microstructure remained highly stable after heating at 80 °C for 30 min and storage at 4 ℃ for 90 days. These findings confirm that MPPI improves the rheological behavior and stability of HIPEs by modulating the interfacial adsorption and network structure.
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31
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Li Q, Li W, Li L, Zong X, Coldea TE, Yang H, Zhao H. Enhancing the foaming properties of brewer's spent grain protein by ultrasound treatment and glycation reaction. Food Funct 2023; 14:2781-2792. [PMID: 36861319 DOI: 10.1039/d2fo03734c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
The denaturation state and relatively poor solubility of brewer's spent grain protein (BSGP) have limited its industrial application. Ultrasound treatment and glycation reaction were applied to improve the structural and foaming properties of BSGP. The results showed that all ultrasound, glycation, and ultrasound-assisted glycation treatments increased the solubility and surface hydrophobicity of BSGP while decreasing its zeta potential, surface tension and particle size. Meanwhile, all these treatments resulted in a more disordered and flexible conformation of BSGP, as observed by CD spectroscopy and SEM. After grafting, the result of FTIR spectroscopy confirmed the covalent binding of -OH between maltose and BSGP. Ultrasound-assisted glycation treatment further improved the free SH and S-S content, which might be due to -OH oxidation, indicating that ultrasound promoted the glycation reaction. Furthermore, all these treatments significantly increased the foaming capacity (FC) and foam stability (FS) of BSGP. Notably, BSGP treated with ultrasound showed the best foaming properties, increasing the FC from 82.22% to 165.10% and the FS from 10.60% to 131.20%, respectively. In particular, the foam collapse rate of BSGP treated with ultrasound-assisted glycation was lower than that of ultrasound or traditional wet-heating glycation treatment. The enhanced hydrogen bonding ability and hydrophobic interaction between protein molecules caused by ultrasound and glycation might be responsible for the improved foaming properties of BSGP. Thus, ultrasound and glycation reactions were efficient methods for producing BSGP-maltose conjugates with superior foaming properties.
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Affiliation(s)
- Qing Li
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Wanying Li
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Li Li
- School of Biological Engineering, Sichuan University of Science & Engineering, Yibin 644000, China
| | - Xuyan Zong
- School of Biological Engineering, Sichuan University of Science & Engineering, Yibin 644000, China
| | - Teodora Emilia Coldea
- Faculty of Food Science and Technology, University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca, Cluj-Napoca 400372, Romania
| | - Huirong Yang
- College of Food Science and Technology, Southwest Minzu University, Chengdu 610041, China.
| | - Haifeng Zhao
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China.
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32
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Colloidal network oleogels structured by sonothermal conjugates of sodium caseinate and anionic gums. Food Hydrocoll 2023. [DOI: 10.1016/j.foodhyd.2023.108624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
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33
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Cui H, Zang Z, Jiang Q, Bao Y, Wu Y, Li J, Chen Y, Liu X, Yang S, Si X, Li B. Utilization of ultrasound and glycation to improve functional properties and encapsulated efficiency of proteins in anthocyanins. Food Chem 2023; 419:135899. [PMID: 37023676 DOI: 10.1016/j.foodchem.2023.135899] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 02/28/2023] [Accepted: 03/05/2023] [Indexed: 03/17/2023]
Abstract
The purpose of this study is to explore the optimal conditions for the preparation of bovine serum albumin (BSA)/casein (CA)-dextran (DEX) conjugates by ultrasonic pretreatment combined with glycation (U-G treatment). When BSA and CA were treated with ultrasound (40% amplitude, 10 min), the grafting degree increased 10.57% and 6.05%, respectively. Structural analysis revealed that ultrasonic pretreatment changed the secondary structure, further affected functional properties of proteins. After U-G treatment, the solubility and thermal stability of BSA and CA was significantly increased, and the foaming and emulsifying capacity of proteins were also changed. Moreover, ultrasonic pretreatment and glycation exhibited a greater impact on BSA characterized with highly helical structure. Complexes fabricated by U-G-BSA/CA and carboxymethyl cellulose (CMC) exhibited protection on anthocyanins (ACNs), delaying the thermal degradation of ACNs. In conclusion, the protein conjugates treated by ultrasonic pretreatment combined with glycation have excellent functionality and are potential carrier materials.
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Affiliation(s)
- Huijun Cui
- College of Food Science, Shenyang Agricultural University, Shenyang, Liaoning 110866, China
| | - Zhihuan Zang
- College of Food Science, Shenyang Agricultural University, Shenyang, Liaoning 110866, China
| | - Qiao Jiang
- College of Food Science, Shenyang Agricultural University, Shenyang, Liaoning 110866, China
| | - Yiwen Bao
- College of Food Science, Shenyang Agricultural University, Shenyang, Liaoning 110866, China
| | - Yunan Wu
- College of Food Science, Shenyang Agricultural University, Shenyang, Liaoning 110866, China
| | - Jiaxin Li
- College of Food Science, Shenyang Agricultural University, Shenyang, Liaoning 110866, China
| | - Yi Chen
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Xiaoli Liu
- Institute of Agro-Product Processing, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu 210014 China
| | - Shufang Yang
- Zhejiang Lanmei Technology Co., Ltd., Zhuji, Zhejiang 311800, China
| | - Xu Si
- College of Food Science, Shenyang Agricultural University, Shenyang, Liaoning 110866, China.
| | - Bin Li
- College of Food Science, Shenyang Agricultural University, Shenyang, Liaoning 110866, China.
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34
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Tang Z, Tao Y, Huang Q, Huang Y, Huang J, Wu Y, Jing X, Yang T, Li X, Liang J, Sun Y. Fabrication, Characterization, and Emulsifying Properties of Complex Based on Pea Protein Isolate / Pectin for the Encapsulation of Pterostilbene. Food Chem X 2023; 18:100663. [PMID: 37064496 PMCID: PMC10090216 DOI: 10.1016/j.fochx.2023.100663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 03/22/2023] [Accepted: 03/23/2023] [Indexed: 03/29/2023] Open
Abstract
In this study, pectin (PEC) and pea protein isolate(PPI) was successfully used to create complexes as a novel delivery system for pterostilbene (PT). When the mass ratio of PEC to PPI was 0.5, the particle size and ζ-potential of PPI-PEC-PT were 119.41 ± 5.68 nm and -23.26 ± 0.61 mV, respectively, and the encapsulation efficiency (EE) of PT was 90.92 ± 2.08%. The photochemical stability of PT was enhanced after encapsulation. The results of the molecular docking and multispectral analysis demonstrated that the PPI and PT binding was spontaneous and mostly fueled by hydrophobic interactions. The hydrophobicity of PPI was significantly decreased and the emulsification activity and emulsion stability were significantly improved after production with PEC and PT. The best emulsification impact was demonstrated by the PPI-PEC-PT complex. PPI-PEC is an effective PT delivery material, and the PPI-PEC-PT complex is a new functional emulsification material with significant potential in liquid and semi-liquid food and health products.
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Affiliation(s)
- Zonghui Tang
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization, Anhui Engineering Laboratory for Agro-products Processing, School of Tea & Food Science, Anhui Agricultural University, Hefei, China
| | - Yuting Tao
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization, Anhui Engineering Laboratory for Agro-products Processing, School of Tea & Food Science, Anhui Agricultural University, Hefei, China
| | - Qiuye Huang
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization, Anhui Engineering Laboratory for Agro-products Processing, School of Tea & Food Science, Anhui Agricultural University, Hefei, China
| | - Yousheng Huang
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization, Anhui Engineering Laboratory for Agro-products Processing, School of Tea & Food Science, Anhui Agricultural University, Hefei, China
| | - Jun Huang
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization, Anhui Engineering Laboratory for Agro-products Processing, School of Tea & Food Science, Anhui Agricultural University, Hefei, China
| | - Yisu Wu
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization, Anhui Engineering Laboratory for Agro-products Processing, School of Tea & Food Science, Anhui Agricultural University, Hefei, China
- Anhui Province Key Laboratory of Analysis and Detection for Food Safety, Technical Center for Hefei Customs, Hefei, China
| | - Xinyu Jing
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization, Anhui Engineering Laboratory for Agro-products Processing, School of Tea & Food Science, Anhui Agricultural University, Hefei, China
| | - Tao Yang
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization, Anhui Engineering Laboratory for Agro-products Processing, School of Tea & Food Science, Anhui Agricultural University, Hefei, China
| | - Xueling Li
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization, Anhui Engineering Laboratory for Agro-products Processing, School of Tea & Food Science, Anhui Agricultural University, Hefei, China
| | - Jin Liang
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization, Anhui Engineering Laboratory for Agro-products Processing, School of Tea & Food Science, Anhui Agricultural University, Hefei, China
| | - Yue Sun
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization, Anhui Engineering Laboratory for Agro-products Processing, School of Tea & Food Science, Anhui Agricultural University, Hefei, China
- Corresponding author.
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35
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Tahsiri Z, Hedayati S, Niakousari M. Improving the functional properties of wild almond protein isolate films by Persian gum and cold plasma treatment. Int J Biol Macromol 2023; 229:746-751. [PMID: 36596371 DOI: 10.1016/j.ijbiomac.2022.12.321] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 12/02/2022] [Accepted: 12/28/2022] [Indexed: 01/01/2023]
Abstract
The application of edible films in food packaging is limited due to their poor functional properties. Cold plasma treatment (CPT) is an emerging technology for the modification of edible films. In this study, edible films were developed from different ratios of wild almond protein isolate (WAPI) and Persian gum (PG). The characterization of films revealed that the sample containing 90 % WAPI and 10 % PG had the highest elongation at break (E), the highest tensile strength (TS), and the lowest water vapor permeability (WVP). Therefore, it was selected as having the best WAPI:PG ratio and exposed to CPT for 5, 10, and 15 min. The results revealed that the application of CPT significantly increased the thickness, TS, and E of edible films, while WVP and solubility were not affected. FTIR spectra showed slight increases in peak intensities at 1628, 1538, and 1400 cm-1. The micrographs revealed that the roughness of composite films increased with increased cold plasma treatment time. In general, edible films treated by CPT for 10 min demonstrated the best functional properties.
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Affiliation(s)
- Zahra Tahsiri
- Department of Food Science and Technology, School of Agriculture, Shiraz University, Shiraz, Iran
| | - Sara Hedayati
- Nutrition Research Center, School of Nutrition and Food Sciences, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Mehrdad Niakousari
- Department of Food Science and Technology, School of Agriculture, Shiraz University, Shiraz, Iran.
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36
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Ke C, Li L. Influence mechanism of polysaccharides induced Maillard reaction on plant proteins structure and functional properties: A review. Carbohydr Polym 2023; 302:120430. [PMID: 36604091 DOI: 10.1016/j.carbpol.2022.120430] [Citation(s) in RCA: 25] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 11/18/2022] [Accepted: 12/01/2022] [Indexed: 12/12/2022]
Abstract
Plant proteins have high nutritional value, a wide range of sources and low cost. However, it is easily affected by the environmental factors of processing and lead the problem of poor functionality. These problems of plant proteins can be improved by the polysaccharides induced Maillard reaction. The interaction between proteins and polysaccharides through Maillard reaction can change the structure of proteins as well as improve the functional properties and biological activity. The products of Maillard reaction, such as reductone intermediates, heterocyclic compounds and melanoidins have certain antioxidant, antibacterial and other biological activities. However, heterocyclic amines, acrylamide, and products generated in the advanced stage of the Maillard reaction also have a negative impact, which may increase cytotoxicity and be associated with chronic diseases. Therefore, it is necessary to effectively control the process of Maillard reaction. This review focuses on the modification of plant proteins by polysaccharide-induced Maillard reaction and the effects of Maillard reaction on protein structure, functional properties and biological activity. It also points out how to accurately reflect the changes of protein structure in Maillard reaction. In addition, it also points out the application ways of plant protein-polysaccharide complexes in the food industry, for example, emulsifiers, delivery carriers of functional substances, and natural antioxidants due to their improved solubility, emulsifying, gelling and antioxidant properties. This review provides theoretical support for controlling Maillard reaction based on protein structure.
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Affiliation(s)
- Chuxin Ke
- College of Food Science, Northeast Agricultural University, Harbin, 150030, China
| | - Liang Li
- College of Food Science, Northeast Agricultural University, Harbin, 150030, China.
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Schneider AA, Bu F, Ismail BP. Enhancement of pea protein solubility and thermal stability for acidic beverage applications via endogenous Maillard-induced glycation and chromatography purification. Curr Res Food Sci 2023; 6:100452. [PMID: 36852385 PMCID: PMC9958256 DOI: 10.1016/j.crfs.2023.100452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 12/23/2022] [Accepted: 01/31/2023] [Indexed: 02/10/2023] Open
Abstract
A clean-label process to endogenously glycate and purify pea protein was investigated. The production of maltodextrin from pea starch with a specific dextrose equivalent (DE) was optimized. The produced maltodextrin (14.6 DE) was used to initiate a limited and controlled Maillard-induced glycation of pea protein. The partially glycated pea protein (PG-PP) was subjected to hydrophobic interaction chromatography to remove unreacted carbohydrate, followed by characterization of the purified product. The extent of Maillard-induced glycation was monitored by assessing changes in color, free amino groups, and protein/glycoprotein profiles. The purified PG-PP was evaluated for thermal denaturation, surface properties, protein secondary structure, protein solubility, thermal stability, and digestibility. Maillard-induced glycation was limited to initial stages and resulted in a moderate blockage of amine groups (∼30%). The purified PG-PP had a relatively low surface hydrophobicity, a markedly enhanced protein solubility (∼90%) at pH 3.4, and a nonimpacted protein in vitro digestibility (∼100%). This work provided the impetus needed for future scale-up and process optimization for the production of value-added pea protein ingredient intended for high protein beverage applications.
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38
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Su Y, Zhang W, Chang C, Li J, Sun Y, Cai Y, Xiong W, Gu L, Yang Y. Changes in partial properties of glycosylated egg white powder during storage. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2023; 103:1261-1272. [PMID: 36088607 DOI: 10.1002/jsfa.12220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 08/17/2022] [Accepted: 09/11/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Glycosylation is an effective method to modify protein. However, there is a lack of research on the property changes of glycosylated protein during storage. In the present study, the changes in the physicochemical, functional, and structural properties of xylo-oligosaccharide (XOS) glycosylated egg white powder (EWP) (XOS-EWP conjugates) prepared with different glycosylation conditions (XOS/EWP ratio and reaction time) were investigated when stored at 25 °C and 60% relative humidity. RESULTS In the 12 weeks of storage, the degree of grafting, browning, and the formation of Maillard reaction products of XOS-EWP conjugates increased. The increase in XOS/EWP ratio and reaction time led to an increase in protein aggregation, though a decrease in solubility, due to increased degree of glycosylation and structural changes. Furthermore, improved gel hardness of XOS-EWP conjugates deteriorated, while improved emulsification ability was kept stable during storage. For the sample with a lower XOS/EWP ratio and reaction time, the gel hardness and emulsifying properties underwent little or no deterioration even improving during storage. The results could be attributed to the limited degree of glycosylation, further unfolding of the protein structure, increased surface hydrophobicity of protein, and improved thermal characteristics. CONCLUSION During storage, the Maillard reaction would continue to occur in the glycosylated EWP, further affecting the performance of modified EWP. Modified EWP prepared under different glycosylation conditions performed differently during storage. Modified EWP with a larger XOS/EWP ratio and reaction time meant it was harder to maintain good performance. Modified EWP with a smaller XOS/EWP ratio and reaction time changed significantly to better performances. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Yujie Su
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Wanqiu Zhang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Cuihua Chang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Junhua Li
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Yuanyuan Sun
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Yundan Cai
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Wen Xiong
- Hunan Engineering & Technology Research Center for Food Flavors and Flavorings, Jinshi, China
| | - Luping Gu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Yanjun Yang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, China
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Xia S, Shen S, Ma C, Li K, Xue C, Jiang X, Xue Y. High-moisture extrusion of yeast-pea protein: Effects of different formulations on the fibrous structure formation. Food Res Int 2023; 163:112132. [PMID: 36596093 DOI: 10.1016/j.foodres.2022.112132] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 10/04/2022] [Accepted: 11/13/2022] [Indexed: 11/18/2022]
Abstract
The demand of meat analogues (MAs) is consistently increasing. The protein materials for MAs are primarily soy, pea, and wheat protein which can not completely meet the growing demand. Hence, this study is focused on the preparation of MAs with up to 50 % yeast protein (YP) instead of pea protein isolate (PPI). In the present study, 0 %, 10 %, 30 %, and 50 % YP powder in dry matter basis were combined with PPI; then the mixtures were used to prepare MAs with fibrous structures using high-moisture extrusion (55 % moisture). The involvement of YP significantly enhanced the hardness of MAs (P < 0.05). The optical and microstructural images illustrated that when YP ratio reached 30 %, obvious fibrous structures still were observed in MAs. Furthermore, MAs containing YP became whiter, which is conducive to reprocessing. With an increase in YP, the bound water content, sheet structures, and exposure of tryptophan residues in MAs increased, whereas the free water content, β-turn, and random coil structures decreased. Analysis of thermal and rheological behaviors indicated that YP lowered the denaturation temperature of MAs and the viscosity of protein dispersions, which was related to the formation of protein aggregates. Overall, YP can be used to prepare MAs and regulate the fibrous structure in MAs by acting on protein conformations.
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Affiliation(s)
- Songgang Xia
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, PR China.
| | - Shuo Shen
- The Hubei Provincial Key Laboratory of Yeast Function, Yichang, 443003 PR China.
| | - Chengxin Ma
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, PR China.
| | - Ku Li
- The Hubei Provincial Key Laboratory of Yeast Function, Yichang, 443003 PR China.
| | - Changhu Xue
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, PR China; Qingdao National Laboratory for Marine Science and Technology, Qingdao 266235, PR China; Qingdao Institute of Marine Bioresources for nutrition & Health Innovation, Qingdao 266041, PR China.
| | - Xiaoming Jiang
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, PR China; Qingdao Institute of Marine Bioresources for nutrition & Health Innovation, Qingdao 266041, PR China.
| | - Yong Xue
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, PR China.
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40
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Han S, Cui F, McClements DJ, Xu X, Ma C, Wang Y, Liu X, Liu F. Structural Characterization and Evaluation of Interfacial Properties of Pea Protein Isolate-EGCG Molecular Complexes. Foods 2022; 11:foods11182895. [PMID: 36141023 PMCID: PMC9498586 DOI: 10.3390/foods11182895] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 09/06/2022] [Accepted: 09/11/2022] [Indexed: 11/18/2022] Open
Abstract
Highlights Pea protein isolate (PPI) and EGCG spontaneously formed complexes. Protein–polyphenol complexation was mainly driven by hydrogen bonding. The binding of EGCG influenced the structure and functionality of PPI. PPI-EGCG complexes had better emulsifier properties than PPI.
Abstract There is increasing interest in using plant-derived proteins in foods and beverages for environmental, health, and ethical reasons. However, the inherent physicochemical properties and functional performance of many plant proteins limit their widespread application. Here, we prepared pea protein isolate (PPI) dispersions using a combined pH-shift/heat treatment method, and then, prepared PPI-epigallocatechin-3-gallate (EGCG) complexes under neutral conditions. Spectroscopy, calorimetry, molecular docking, and light scattering analysis demonstrated that the molecular complexes formed spontaneously. This was primarily ascribed to hydrogen bonds and van der Waals forces. The complexation of EGCG caused changes in the secondary structure of PPI, including the reduction in the α-helix and increase in the β-sheet and disordered regions. These changes slightly decreased the thermal stability of the protein. With the accretion of EGCG, the hydrophilicity of the complexes increased significantly, which improved the functional attributes of the protein. Optimization of the PPI-to-EGCG ratio led to the complexes having better foaming and emulsifying properties than the protein alone. This study could broaden the utilization of pea proteins as functional ingredients in foods. Moreover, protein–polyphenol complexes can be used as multifunctional ingredients, such as antioxidants or nutraceutical emulsifiers.
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Affiliation(s)
- Shuang Han
- College of Food Science and Engineering, Northwest A&F University, Xianyang 712100, China
| | - Fengzhan Cui
- College of Food Science and Engineering, Northwest A&F University, Xianyang 712100, China
| | | | - Xingfeng Xu
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao 266109, China
| | - Cuicui Ma
- College of Food Science and Engineering, Northwest A&F University, Xianyang 712100, China
| | - Yutang Wang
- College of Food Science and Engineering, Northwest A&F University, Xianyang 712100, China
| | - Xuebo Liu
- College of Food Science and Engineering, Northwest A&F University, Xianyang 712100, China
| | - Fuguo Liu
- College of Food Science and Engineering, Northwest A&F University, Xianyang 712100, China
- Correspondence:
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Zhang S, Li X, Yan X, Julian McClements D, Ma C, Liu X, Liu F. Ultrasound-assisted preparation of lactoferrin-EGCG conjugates and their application in forming and stabilizing algae oil emulsions. ULTRASONICS SONOCHEMISTRY 2022; 89:106110. [PMID: 35961190 PMCID: PMC9382344 DOI: 10.1016/j.ultsonch.2022.106110] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 07/15/2022] [Accepted: 07/28/2022] [Indexed: 05/09/2023]
Abstract
The aim of this study was to prepare lactoferrin-epigallocatechin-3-gallate (LF-EGCG) conjugates and to determine their ability to protect emulsified algal oil against aggregation and oxidation. LF-EGCG conjugates were formed using an ultrasound-assisted alkaline treatment. The ultrasonic treatment significantly improved the grafting efficiency of LF and EGCG and shortened the reaction time from 24 h to 40 min. Fourier transform infrared spectroscopy and circular dichroism spectroscopy analyses showed that the covalent/non-covalent complexes could be formed between LF and EGCG, with the CO and CN groups playing an important role. The formation of the conjugates reduced the α-helix content and increased the random coil content of the LF. Moreover, the antioxidant activity of LF was significantly enhanced after conjugation with EGCG. LF-EGCG conjugates as emulsifiers were better at inhibiting oil droplet aggregation and oxidation than LF alone. This study demonstrates that ultrasound-assisted formation of protein-polyphenol conjugates can enhance the functional properties of the proteins, thereby extending their application as functional ingredients in nutritionally fortified foods.
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Affiliation(s)
- Sairui Zhang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Xueqi Li
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Xiaojia Yan
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
| | | | - Cuicui Ma
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Xuebo Liu
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Fuguo Liu
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China.
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Impact of pea protein-inulin conjugates prepared via the Maillard reaction using a combination of ultrasonic and pH-shift treatments on physical and oxidative stability of algae oil emulsions. Food Res Int 2022; 156:111161. [DOI: 10.1016/j.foodres.2022.111161] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Revised: 03/14/2022] [Accepted: 03/15/2022] [Indexed: 11/20/2022]
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