1
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Olsmats E, Rennie AR. Understanding Stabilization of Oil-in-Water Emulsions with Pea Protein─Studies of Structure and Properties. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:13386-13396. [PMID: 38904703 PMCID: PMC11223488 DOI: 10.1021/acs.langmuir.4c00540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 06/07/2024] [Accepted: 06/12/2024] [Indexed: 06/22/2024]
Abstract
This study investigates the stability and structure of oil-in-water emulsions stabilized by pea protein. Of the wide range of emulsion compositions explored, a region of stability at a minimum of 5% w/v pea protein and 30-50% v/v oil was determined. This pea protein concentration is more than what is needed to form a layer covering the interface. X-ray scattering revealed a thick, dense protein layer at the interface as well as hydrated protein dispersed in the continuous phase. Shear-thinning behavior was observed, and the high viscosity in combination with the thick protein layer at the interface creates a good stability against creaming and coalescence. Emulsions in a pH range from acidic to neutral were studied, and the overall stability was observed to be broadly similar independently of pH. Size measurements revealed polydisperse protein particles. The emulsion droplets are also very polydisperse. Apart from understanding pea protein-stabilized emulsions in particular, insights are gained about protein stabilization in general. Knowledge of the location and the role of the different components in the pea protein material suggests that properties such as viscosity and stability can be tailored for various applications, including food and nutraceutical products.
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Affiliation(s)
- Eleonora Olsmats
- Macromolecular Chemistry, Department
of Chemistry—Ångström, Uppsala University, Box 538, 75121 Uppsala, Sweden
| | - Adrian R. Rennie
- Macromolecular Chemistry, Department
of Chemistry—Ångström, Uppsala University, Box 538, 75121 Uppsala, Sweden
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2
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Zhi Z, Li H, Geurs I, Lewille B, Liu R, Van der Meeren P, Dewettinck K, van Bockstaele F. Destabilization of a model O/W/O double emulsion: From bulk to interface. Food Chem 2024; 445:138723. [PMID: 38350201 DOI: 10.1016/j.foodchem.2024.138723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 02/06/2024] [Accepted: 02/07/2024] [Indexed: 02/15/2024]
Abstract
Oil-in-water-in-oil (O/W/O) double emulsions are considered an advanced oil-structuring technology that can accomplish multi-functions to improve food quality and nutrition. However, this special structure is thermodynamically unstable. This study formulated a model O/W/O double emulsion with standard surfactants, Tween 80 (4 %) and polyglycerol polyricinoleate (PGPR, 5 %), using a traditional two-step method with different homogenization parameters. Cryo-SEM and GC-FID results show that O/W/O emulsions were successfully formulated, and the release rate (RR) of medium-chain triglycerides (MCT) oil from the inner oil to the outer oil phase increased significantly with 2nd homogenization speed increasing, respectively. Interestingly, the RR of all samples reached about 75 % after 2 months of storage, suggesting that O/W/O emulsions were highly unstable. To explain the observed instability, dynamic interfacial tension and interfacial rheology were performed using a drop shape tensiometer. Results demonstrated that unadsorbed Tween 80 in the intermediate aqueous phase was a key factor in markedly decreasing the interfacial properties of the outer PGPR-assembled film by affecting the interfacial rearrangement. Additionally, it was found that the MCT release showed a positive correlation with the Tween 80 concentration, demonstrating that the formed Tween 80 micelles could transport oil molecules to strengthen the emulsion instability. Taken together, this study reveals the destabilization mechanism of model O/W/O surfactants-stabilized emulsions from bulk to interface, providing highly relevant insights for the design of stable O/W/O double emulsions.
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Affiliation(s)
- Zijian Zhi
- Food Structure and Function (FSF) Research Group, Department of Food Technology, Safety and Health, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Gent, Belgium.
| | - Hao Li
- Particle and Interfacial Technology Group (PaInT), Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Gent, Belgium
| | - Indi Geurs
- Food Structure and Function (FSF) Research Group, Department of Food Technology, Safety and Health, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Gent, Belgium
| | - Benny Lewille
- Food Structure and Function (FSF) Research Group, Department of Food Technology, Safety and Health, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Gent, Belgium
| | - Rui Liu
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin 300457, China.
| | - Paul Van der Meeren
- Particle and Interfacial Technology Group (PaInT), Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Gent, Belgium
| | - Koen Dewettinck
- Food Structure and Function (FSF) Research Group, Department of Food Technology, Safety and Health, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Gent, Belgium
| | - Filip van Bockstaele
- Food Structure and Function (FSF) Research Group, Department of Food Technology, Safety and Health, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Gent, Belgium.
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3
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Fu W, Liu F, Zhang R, Zhao R, He Y, Wang C. Physicochemical Properties, Stability, and Functionality of Non-Covalent Ternary Complexes Fabricated with Pea Protein, Hyaluronic Acid and Chlorogenic Acid. Foods 2024; 13:2054. [PMID: 38998558 PMCID: PMC11241131 DOI: 10.3390/foods13132054] [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: 05/14/2024] [Revised: 06/19/2024] [Accepted: 06/25/2024] [Indexed: 07/14/2024] Open
Abstract
The aim of this study was to prepare and characterize stable non-covalent ternary complexes based on pea protein (PP, 0.5%), hyaluronic acid (HA, 0.125%), and chlorogenic acid (CA, 0~0.03%). The ternary complexes were comprehensively evaluated for physicochemical attributes, stability, emulsifying capacities, antioxidant properties, and antimicrobial efficacy. PP-HA binary complexes were first prepared at pH 7, and then CA was bound to the binary complexes, as verified by fluorescence quenching. Molecular docking elucidated that PP interacted with HA and CA through hydrogen bonding, hydrophobic and electrostatic interactions. The particle size of ternary complexes initially decreased, then increased with CA concentration, peaking at 0.025%. Ternary complexes demonstrated good stability against UV light and thermal treatment. Emulsifying activity of complexes initially decreased and then increased, with a turning point of 0.025%, while emulsion stability continued to increase. Complexes exhibited potent scavenging ability against free radicals and iron ions, intensifying with higher CA concentrations. Ternary complexes effectively inhibited Staphylococcus aureus and Escherichia coli, with inhibition up to 0.025%, then decreasing with CA concentration. Our study indicated that the prepared ternary complexes at pH 7 were stable and possessed good functionality, including emulsifying properties, antioxidant activity, and antibacterial properties under certain concentrations of CA. These findings may provide valuable insights for the targeted design and application of protein-polysaccharide-polyphenol complexes in beverages and dairy products.
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Affiliation(s)
| | | | | | | | | | - Cuina Wang
- Department of Food Science, College of Food Science and Engineering, Jilin University, Changchun 130062, China; (W.F.); (F.L.); (R.Z.); (R.Z.); (Y.H.)
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Pan J, Xu H, Dabbour M, Mintah BK, Huang L, Dai C, He R, Ma H. Changes in physicochemical, structural and functional properties, and lysinoalanine formation during the unfolding and refolding of pH-shifted black soldier fly larvae albumin. Int J Biol Macromol 2024; 272:132801. [PMID: 38825263 DOI: 10.1016/j.ijbiomac.2024.132801] [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: 04/09/2024] [Revised: 05/22/2024] [Accepted: 05/30/2024] [Indexed: 06/04/2024]
Abstract
The changes of physicochemical, structural and functional properties and the lysinoalanine (LAL) formation during the unfolding and refolding of black soldier fly larvae albumin (BSFLA) induced by acid/alkaline pH shift were explored. The results showed that acid/alkaline conditions induced unfolding of BSFLA structure, but also accompanied by the formation of some large aggregates due to the hydrophobic interactions, hydrogen bonds, and disulfide bonds. Compared with control or pH1.5 shift, pH12 shift treatment significantly increased the electrostatic repulsion, surface hydrophobicity, free sulfhydryl group, and deamidation reactions, but reduced the fluorescence intensity of BSFLA, and these change in protein conformation contributed to increase in solubility, emulsion activity, and emulsion stability. But the content of LAL in BSFLA was increased by 93.39 % by pH 12 shift treatment. In addition, pH1.5 shift modified BSFLA tended to form β-sheet structure through unfolding and refolding, resulting in the formation of aggregates with larger particle sizes, and reducing the solubility and the LAL content by 7.93 % and 65.53 %, respectively. SDS-PAGE profile showed that pH12/1.5 shifting did not cause irreversible denaturation of protein molecules. Therefore, pH12-shift is good way to improve the functional properties of BSFLA, but the content of LAL should be reduced to make it better used in food.
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Affiliation(s)
- 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
| | - 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
| | - Mokhtar Dabbour
- Department of Agricultural and Biosystems Engineering, Faculty of Agriculture, Benha University, P.O. Box 13736, Moshtohor, Qaluobia, Egypt
| | - Benjamin Kumah Mintah
- CSIR - Food Research Institute, P.O. Box M20, Accra, Ghana; Department of Agro-processing Technology and Food Bio-sciences, CSIR College of Science and Technology (CCST), Accra, Ghana
| | - 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
| | - 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.
| | - 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
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Wang Y, Yuan JJ, Zhang YR, Chen X, Wang JL, Chen B, Li K, Bai YH. Unraveling the effect of combined heat and high-pressure homogenization treatment on the improvement of chickpea protein solubility from the perspectives of colloidal state change and structural characteristic modification. Food Chem 2024; 442:138470. [PMID: 38271907 DOI: 10.1016/j.foodchem.2024.138470] [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: 08/29/2023] [Revised: 12/31/2023] [Accepted: 01/15/2024] [Indexed: 01/27/2024]
Abstract
Chickpea protein (CP) is a promising plant protein ingredient, but the poor solubility has limited its broad application. In this study, heating followed by high-pressure homogenization (HPH) was used to improve the solubility of CP. The results showed that combined heat (80℃, 30 min) and HPH (80 MPa, 2 cycles) treatment exhibited an additive effect in improving the solubility of CP. This improvement could be attributed to the dissociation and the rearrangement of large insoluble protein aggregates into small-sized soluble protein aggregates, the increased exposure of hydrophobic residues and reactive sulfhydryl groups, the transformation of α-helices to β-sheets and β-turns. Moreover, the 11S subunits of CP could form reinforced disulfide covalent cross-links under heating + HPH, which may provide steric hindrance preventing the reassembly of large protein bodies. This work proposes an interesting approach to enhance the physicochemical properties of CP for tailoring techno-functional plant protein ingredients in food formulations.
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Affiliation(s)
- Yu Wang
- College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou, Henan 450000, China; Key Laboratory of Cold Chain Food Processing and Safety Control, Ministry of Education, Zhengzhou, Henan 450000, China.
| | - Jing-Jing Yuan
- College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou, Henan 450000, China
| | - Ya-Ru Zhang
- College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou, Henan 450000, China
| | - Xing Chen
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Jia-le Wang
- College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou, Henan 450000, China
| | - Bo Chen
- College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou, Henan 450000, China; Key Laboratory of Cold Chain Food Processing and Safety Control, Ministry of Education, Zhengzhou, Henan 450000, China
| | - Ke Li
- College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou, Henan 450000, China; Key Laboratory of Cold Chain Food Processing and Safety Control, Ministry of Education, Zhengzhou, Henan 450000, China
| | - Yan-Hong Bai
- College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou, Henan 450000, China; Key Laboratory of Cold Chain Food Processing and Safety Control, Ministry of Education, Zhengzhou, Henan 450000, China.
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6
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Maria Medeiros Theóphilo Galvão A, Lamy Rasera M, de Figueiredo Furtado G, Grossi Bovi Karatay G, M Tavares G, Dupas Hubinger M. Lentil protein isolate (Lens culinaris) subjected to ultrasound treatment combined or not with heat-treatment: structural characterization and ability to stabilize high internal phase emulsions. Food Res Int 2024; 183:114212. [PMID: 38760140 DOI: 10.1016/j.foodres.2024.114212] [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: 11/04/2023] [Revised: 02/20/2024] [Accepted: 03/10/2024] [Indexed: 05/19/2024]
Abstract
This study evaluated the effect of ultrasound treatment combined or not with heat treatment applied to lentil protein isolate (LPI) aiming to enhance its ability to stabilize high internal phase emulsions (HIPE). LPI dispersion (2%, w/w) was ultrasound-treated at 60% (UA) and 70% (UB) amplitude for 7 min; these samples were subjected to and then heat treatments at 70 °C (UAT70 and UBT70, respectively) or 80 °C (UAT80 and UBT80, respectively) for 20 min. HIPEs were produced with 25% untreated and treated LPI dispersions and 75% soybean oil using a rotor-stator (15,500 rpm/1 min). The LPI dispersions were evaluated for particle size, solubility, differential scanning calorimetry, electrophoresis, secondary structure estimation (circular dichroism and FT-IR), intrinsic fluorescence, surface hydrophobicity, and free sulfhydryl groups content. The HIPEs were evaluated for droplet size, morphology, rheology, centrifugal stability, and the Turbiscan test. Ultrasound treatment decreased LPI dispersions' particle size (∼80%) and increased solubility (∼90%). Intrinsic fluorescence and surface hydrophobicity confirmed LPI modification due to the exposure to hydrophobic patches. The combination of ultrasound and heat treatments resulted in a reduction in the free sulfhydryl group content of LPI. HIPEs produced with ultrasound-heat-treated LPI had a lower droplet size distribution mode, greater oil retention values in the HIPE structure (> 98%), lower Turbiscan stability index (< 2), and a firmer and more homogeneous appearance compared to HIPE produced with untreated LPI, indicating higher stability for the HIPEs stabilized by treated LPI. Therefore, combining ultrasound and heat treatments could be an effective method for the functional modification of lentil proteins, allowing their application as HIPE emulsifiers.
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Affiliation(s)
- Andrêssa Maria Medeiros Theóphilo Galvão
- Departamento de Engenharia e Tecnologia de Alimentos, Faculdade de Engenharia de Alimentos, Universidade Estadual de Campinas (UNICAMP), Monteiro Lobato, 80, 13083-862 Campinas, SP, Brazil.
| | - Mariana Lamy Rasera
- Departamento de Ciência de Alimentos e Nutrição, Faculdade de Engenharia de Alimentos, Universidade Estadual de Campinas (UNICAMP), Monteiro Lobato, 80, 13083-862 Campinas, SP, Brazil
| | - Guilherme de Figueiredo Furtado
- Centro de Ciências da Natureza, Universidade Federal de São Carlos, Rod. Lauri Simões de Barros, km 12 - SP 189, Buri, SP 18290-000, Brazil
| | - Graziele Grossi Bovi Karatay
- Departamento de Engenharia e Tecnologia de Alimentos, Faculdade de Engenharia de Alimentos, Universidade Estadual de Campinas (UNICAMP), Monteiro Lobato, 80, 13083-862 Campinas, SP, Brazil
| | - Guilherme M Tavares
- Departamento de Ciência de Alimentos e Nutrição, Faculdade de Engenharia de Alimentos, Universidade Estadual de Campinas (UNICAMP), Monteiro Lobato, 80, 13083-862 Campinas, SP, Brazil
| | - Míriam Dupas Hubinger
- Departamento de Engenharia e Tecnologia de Alimentos, Faculdade de Engenharia de Alimentos, Universidade Estadual de Campinas (UNICAMP), Monteiro Lobato, 80, 13083-862 Campinas, SP, Brazil
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7
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Olsmats E, Rennie AR. Pea protein [Pisum sativum] as stabilizer for oil/water emulsions. Adv Colloid Interface Sci 2024; 326:103123. [PMID: 38502971 DOI: 10.1016/j.cis.2024.103123] [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: 03/04/2024] [Accepted: 03/04/2024] [Indexed: 03/21/2024]
Abstract
A map of stability for various water/oil/pea protein compositions has been plotted from the numerous reported results. Two clear regions of stability were identified. High internal oil phase emulsions with 70-80%, v/v oil content stabilized by total pea protein concentration <2.5%, w/v showed stability. Low oil content of 10-30%, v/v for a range of total pea protein concentrations >0.5%, w/v have also been identified as stable. Intermediate oil content and pea protein concentrations >4% w/v are unexplored regions and are likely to be areas of fruitful future research. The wide range of stability suggests that different stabilization mechanisms could be important for different compositions and careful consideration has to be taken to avoid oversimplification. Both stabilization with particles, i.e. Pickering emulsions, and protein unfolding have been suggested as mechanisms. The diverse way of describing stability makes it difficult to intercompare results in different studies. A summary of different oil types used have been presented and several properties such as dynamic viscosity, density, the dielectric constant and interfacial tension have been summarized for common vegetable oils. The type of vegetable oil and emulsion preparation techniques were seen to have rather little effect on emulsion stability. However, the different extraction methods and processing of the pea material had more effect, which could be attributed to changing composition of different proteins and to the states of aggregation and denaturing. Careful consideration has to be taken in the choice of extraction method and an increased understanding of what contributes to the stability is desirable for further progress in research and eventual product formulation.
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Affiliation(s)
- Eleonora Olsmats
- Macromolecular Chemistry, Department of Chemistry - Ångström, Uppsala University, Box 538, 75121 Uppsala, Sweden.
| | - Adrian R Rennie
- Macromolecular Chemistry, Department of Chemistry - Ångström, Uppsala University, Box 538, 75121 Uppsala, Sweden.
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8
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Kang BK, Yu JC, Shin WS. Physical Stability and Antioxidant Ability of a Sustainable Oil-in-Water Emulsion Containing Perilla Skin Extract and Upcycled Aquasoya Powder. Foods 2024; 13:1063. [PMID: 38611367 PMCID: PMC11011918 DOI: 10.3390/foods13071063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Revised: 03/25/2024] [Accepted: 03/28/2024] [Indexed: 04/14/2024] Open
Abstract
In response to environmental issues, upcycling has become a growing trend in the food industry. Aquasoya is a promising method to upcycle by-product from soybean processing due to its high protein contents and excellent emulsifying ability. In the present research, Aquasoya powder was used an emulsifier to incorporate the antioxidant compounds from perilla skin extract (PSE), namely rosmarinic acid, into oil-in-water (O/W) emulsion system and its physochemical stability was assessed. As a result, droplet size of the emulsion was smaller in PSE-incorporated emulsion (PO, 350.57 ± 9.60 b nm) than the emulsion without PSE (PX, 1045.37 ± 142.63 a nm). Centrifugal photosedimentometry analysis also revealed that the physical stability was significantly improved in PO, and the stability was maintained over 30 d of storage. Furthermore, as PO had a higher ABTS radical scavenging ability and showed slower initial lipid oxidation, it was concluded that PO has a higher antioxidant ability than PX. Conclusively, Aquasoya can be considered as an emulsifier in O/W emulsion with PSE because it can effectively integrate and stabilize the antioxidant substance derived from perilla skin.
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Affiliation(s)
| | | | - Weon-Sun Shin
- Department of Food and Nutrition, College of Human Ecology, Hanyang University, 17 Haengdang-dong, Seongdong-gu, Seoul 04763, Republic of Korea; (B.-K.K.); (J.-C.Y.)
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9
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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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10
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Igartúa DE, Dichano MC, Ferrari SB, Palazolo GG, Cabezas DM. Combination of pH-shifting, ultrasound, and heat treatments to enhance solubility and emulsifying stability of rice protein isolate. Food Chem 2024; 433:137319. [PMID: 37683482 DOI: 10.1016/j.foodchem.2023.137319] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 08/15/2023] [Accepted: 08/28/2023] [Indexed: 09/10/2023]
Abstract
Rice protein isolates (RPI) are promising plant-protein sources but present low solubility and poor surface activity in neutral conditions. Improving these characteristics is a crucial challenge to capitalize on them. This is the first work performing pH-shifting, ultrasound, and heat treatments on a commercial RPI. The combined approaches increased the protein solubility (from ∼2.7% to ∼91.8%) and surface hydrophobicity (up to ∼283%) and induced the formation of less compact and more dispersed protein aggregates. The pH-shifting induced the unfolding of protein molecules and aggregates making them available for modification by both ultrasound and heating, which are supposed to induce further protein unfolding, exposure of buried hydrophobic amino acid, and protein hydrolysis. Also, the combined approaches generated modified RPI able to form oil-in-water emulsions with reduced particle size and enhanced stability than the untreated RPI. Therefore, this work presents an effective combined approach to enhance the techno-functional properties of rice proteins.
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Affiliation(s)
- Daniela E Igartúa
- Universidad Nacional de Quilmes, Departamento de Ciencia y Tecnología, Laboratorio de Investigación en Funcionalidad y Tecnología de Alimentos (LIFTA), Roque Sáenz Peña 352, B1876BXD Bernal, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, C1425FQB Ciudad Autónoma de Buenos Aires, Argentina
| | - M Celeste Dichano
- Universidad Nacional de Quilmes, Departamento de Ciencia y Tecnología, Laboratorio de Investigación en Funcionalidad y Tecnología de Alimentos (LIFTA), Roque Sáenz Peña 352, B1876BXD Bernal, Buenos Aires, Argentina
| | - Sofia B Ferrari
- Universidad Nacional de Quilmes, Departamento de Ciencia y Tecnología, Laboratorio de Investigación en Funcionalidad y Tecnología de Alimentos (LIFTA), Roque Sáenz Peña 352, B1876BXD Bernal, Buenos Aires, Argentina
| | - Gonzalo G Palazolo
- Universidad Nacional de Quilmes, Departamento de Ciencia y Tecnología, Laboratorio de Investigación en Funcionalidad y Tecnología de Alimentos (LIFTA), Roque Sáenz Peña 352, B1876BXD Bernal, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, C1425FQB Ciudad Autónoma de Buenos Aires, Argentina
| | - Dario M Cabezas
- Universidad Nacional de Quilmes, Departamento de Ciencia y Tecnología, Laboratorio de Investigación en Funcionalidad y Tecnología de Alimentos (LIFTA), Roque Sáenz Peña 352, B1876BXD Bernal, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, C1425FQB Ciudad Autónoma de Buenos Aires, Argentina.
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11
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Liu R, Yan X, Liu R, Wu Q, Gao Y, Muhindo EM, Zhi Z, Wu T, Sui W, Zhang M. Lima bean (Phaseolus lunatus Linn.) protein isolate as a promising plant protein mixed with xanthan gum for stabilizing oil-in-water emulsions. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024; 104:818-828. [PMID: 37683050 DOI: 10.1002/jsfa.12971] [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: 05/06/2023] [Revised: 08/09/2023] [Accepted: 09/08/2023] [Indexed: 09/10/2023]
Abstract
BACKGROUND Lima bean protein isolate (LPI) is an underutilized plant protein. Similar to other plant proteins, it may display poor emulsification properties. In order to improve its emulsifying properties, one effective approach is using protein and polysaccharide mixtures. This work investigated the structural and emulsifying properties of LPI as well as the development of an LPI/xanthan gum (XG)-stabilized oil-in-water emulsion. RESULTS The highest protein solubility (84.14%) of LPI was observed and the molecular weights (Mw ) of most LPI subunits were less than 35 kDa. The enhanced emulsifying activity index (15.97 m2 g-1 ) of LPI might be associated with its relatively high protein solubility and more low-Mw subunits (Mw < 35 kDa). The effects of oil volume fraction (ϕ) on droplet size, microstructure, rheological behavior and stability of emulsions were investigated. As ϕ increased from 0.2 to 0.8, the emulsion was arranged from spherical and dispersed oil droplets to polyhedral packing of oil droplets adjacent to each other, while the LPI/XG mixtures changed from particles (in the uncrowded interfacial layer) to lamellae (in the crowded interfacial layer). When ϕ was 0.6, the emulsion was in a transitional state with the coexistence of particles and lamellar structures on the oil droplet surface. The LPI/XG-stabilized emulsions with ϕ values of 0.6-0.8 showed the highest stability during a 14-day storage period. CONCLUSION This study developed a promising plant-based protein resource, LPI, and demonstrates potential application of LPI/XG as an emulsifying stabilizer in foods. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Rui Liu
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin, China
| | - Xuebing Yan
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin, China
| | - Ruixin Liu
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin, China
| | - Qifan Wu
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin, China
| | - Yuhong Gao
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin, China
| | - Esther Mwizerwa Muhindo
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin, China
| | - Zijian Zhi
- Food Structure and Function (FSF) Research Group, Department of Food Technology, Safety and Health, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Tao Wu
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin, China
| | - Wenjie Sui
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin, China
| | - Min Zhang
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin, China
- China-Russia Agricultural Processing Joint Laboratory, Tianjin Agricultural University, Tianjin, China
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12
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Zhang X, Zhang T, Li S, Zhao R, Li S, Wang C. Mixed whey and pea protein based cold-set emulsion gels induced by calcium chloride: Fabrication and characterization. Int J Biol Macromol 2023; 253:126641. [PMID: 37657583 DOI: 10.1016/j.ijbiomac.2023.126641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 08/26/2023] [Accepted: 08/29/2023] [Indexed: 09/03/2023]
Abstract
The cold-set gels of oil-in-water emulsions stabilized by mixtures of whey protein isolate (WPI) and pea protein isolate (PPI) with mass ratios of 10:0, 7:3, 5:5, 3:7, and 0:10 were investigated to evaluate the possibility of pea protein to replace milk protein. Particle size and surface charge of emulsions increased and decreased with raised PPI content, respectively. The redness and yellowness of emulsion gels were strengthened with elevated pea protein percentage and independent of calcium concentration applied. Considerable differences in water holding capacity were observed between samples with different mixed proteins and high percentage of pea protein gave better water retaining ability. Gradual decreases in hardness and chewiness of emulsion gels were observed at three calcium levels with the increased PPI proportion. FT-IR spectra indicated no new covalent bonds were generated between samples with different whey and pea protein mass ratios. As PPI concentration elevated, the network structure of emulsion gels gradually became loose and disordered. The established cold-set calcium-induced whey/pea protein composite gels may have the potential to be utilized as a new material to encapsulate and deliver environment sensitive bio-active substances.
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Affiliation(s)
- Xiaoge Zhang
- Department of Food Science, College of Food Science and Engineering, Jilin University, Changchun, Jilin 130062, China
| | - Tiehua Zhang
- Department of Food Science, College of Food Science and Engineering, Jilin University, Changchun, Jilin 130062, China
| | - Siyao Li
- Department of Food Science, College of Food Science and Engineering, Jilin University, Changchun, Jilin 130062, China
| | - Ru Zhao
- Department of Food Science, College of Food Science and Engineering, Jilin University, Changchun, Jilin 130062, China
| | - Shuyi Li
- Department of Food Science, College of Food Science and Engineering, Jilin University, Changchun, Jilin 130062, China
| | - Cuina Wang
- Department of Food Science, College of Food Science and Engineering, Jilin University, Changchun, Jilin 130062, China.
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13
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Fan W, Shi Y, Hu Y, Zhang J, Liu W. Effects of the Combination of Protein in the Internal Aqueous Phase and Polyglycerol Polyricinoleate on the Stability of Water-In-Oil-In-Water Emulsions Co-Encapsulating Crocin and Quercetin. Foods 2023; 13:131. [PMID: 38201158 PMCID: PMC10779032 DOI: 10.3390/foods13010131] [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: 12/05/2023] [Revised: 12/19/2023] [Accepted: 12/27/2023] [Indexed: 01/12/2024] Open
Abstract
This study aimed to diminish the reliance on water-in-oil-in-water (W/O/W) emulsions on the synthetic emulsifier polyglycerol polyricinoleate (PGPR). Considering the potential synergistic effects of proteins and PGPR, various protein types (whey, pea and chickpea protein isolates) were incorporated into the internal aqueous phase to formulate W/O/W emulsions. The effects of the combination of PGPR and protein at different ratios (5:0, 4:1, 3:2, 1:1 and 2:3) on the stability and encapsulation properties of W/O/W emulsions co-encapsulating crocin and quercetin were investigated. The findings indicated that the combination of PGPR and protein resulted in a slight reduction in the encapsulation efficiency of the emulsions, compared to that of PGPR (the control). Nonetheless, this combination significantly enhanced the physical stability of the emulsions. This result was primarily attributed to the smaller droplet sizes and elevated viscosity. These factors contributed to increased retentions of crocin (exceeding 70.04%) and quercetin (exceeding 80.29%) within the emulsions after 28 days of storage, as well as their improved bioavailability (increases of approximately 11.62~20.53% and 3.58~7.98%, respectively) during gastrointestinal digestion. Overall, combining PGPR and protein represented a viable and promising strategy for reducing the amount of PGPR and enhancing the stability of W/O/W emulsions. Notably, two plant proteins exhibited remarkable favorability in this regard. This work enriched the formulations of W/O/W emulsions and their application in the encapsulation of bioactive substances.
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Affiliation(s)
- Wei Fan
- State Key Laboratory of Food Science and Resources, Nanchang University, 235 Nanjing East Road, Nanchang 330047, China; (W.F.); (Y.H.); (J.Z.); (W.L.)
| | - Yan Shi
- Department of Food Science and Engineering, Nanchang University, 235 Nanjing East Road, Nanchang 330047, China
| | - Yueming Hu
- State Key Laboratory of Food Science and Resources, Nanchang University, 235 Nanjing East Road, Nanchang 330047, China; (W.F.); (Y.H.); (J.Z.); (W.L.)
| | - Jing Zhang
- State Key Laboratory of Food Science and Resources, Nanchang University, 235 Nanjing East Road, Nanchang 330047, China; (W.F.); (Y.H.); (J.Z.); (W.L.)
| | - Wei Liu
- State Key Laboratory of Food Science and Resources, Nanchang University, 235 Nanjing East Road, Nanchang 330047, China; (W.F.); (Y.H.); (J.Z.); (W.L.)
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14
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Premachandra A, McKay Y, McClure M, Sarkar I, Lutes K, Rollings-Scattergood S, Latulippe D. High-throughput screening to evaluate optimum coagulation conditions via colloidal stability analysis. CHEMOSPHERE 2023; 341:139798. [PMID: 37572708 DOI: 10.1016/j.chemosphere.2023.139798] [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: 05/02/2023] [Revised: 08/08/2023] [Accepted: 08/10/2023] [Indexed: 08/14/2023]
Abstract
Current methods of optimizing the coagulant dosage in wastewater treatment processes typically rely on the use of labor- and material-intensive jar testers, which are inadequate when coagulation processes require frequent adjustments due to variations in properties of the incoming feed. Analytical centrifuges (ACs) employ an integrated optics system that simultaneously monitors the position of the boundary between two separating phases in multiple samples of fairly low volumes (∼2 mL) - thus it was expected that ACs would be ideally suited to study the stability and settling kinetics of coagulation treatment processes. In this study, wastewater samples from a biogas generation facility (known as centrate) were collected in February 2022 (Batch A) and July 2022 (Batch B). A comprehensive screening of the treatment performance for Batch B was conducted at three pHs (5, 6, and 7) and nine concentrations of ferric chloride (0-500 mg-Fe3+/L) - it was found that the front-tracking profiles measured by the integrated optics system could be used to identify the minimal coagulation conditions needed to transition from slow to rapid settling. While the settling velocity was found to be well correlated with the instability index, a dimensionless number between 0 and 1 (where values closer to 1 indicate better separation), it was determined that the percentage of COD removal from the centrate samples increased up to an instability index of approximately 0.5 and then plateaued. Finally, it was found that the front-tracking profiles could be used to estimate the volume of sludge produced at various coagulation conditions. Thus, the results from this study establish ACs as an important screening tool for rapid evaluation of treatment performance while consuming minimal material and time - in this study, a total of 132 screening experiments were conducted using approximately ∼11 L of centrate and ∼6 hours of operator time.
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Affiliation(s)
- Abhishek Premachandra
- Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4L7, Canada
| | - Yves McKay
- Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4L7, Canada
| | - Matthew McClure
- Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4L7, Canada
| | - Indranil Sarkar
- Anaergia, 4210 S Service Rd, Burlington, Ontario, L7L 4X5, Canada
| | - Kevin Lutes
- Anaergia, 4210 S Service Rd, Burlington, Ontario, L7L 4X5, Canada
| | | | - David Latulippe
- Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4L7, Canada.
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15
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Can Karaca A, Assadpour E, Jafari SM. Plant protein-based emulsions for the delivery of bioactive compounds. Adv Colloid Interface Sci 2023; 316:102918. [PMID: 37172542 DOI: 10.1016/j.cis.2023.102918] [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: 02/22/2023] [Revised: 05/01/2023] [Accepted: 05/04/2023] [Indexed: 05/15/2023]
Abstract
Emulsion-based delivery systems (EBDSs) can be used as effective carriers for bioactive compounds (bioactives). Recent studies have shown that plant proteins (PLPs) have the potential to be utilized as stabilizers of emulsions for loading, protection and delivery of bioactives. Different strategies combining physical, chemical and biological techniques can be applied for alteration of the structural characteristics and improving the emulsification and encapsulation performance of PLPs. The stability, release, and bioavailability of the encapsulated bioactives can be tailored via optimizing the processing conditions and formulation of the emulsions. This paper presents cutting-edge information on PLP-based emulsions carrying bioactives in terms of their preparation methods, physicochemical characteristics, stability, encapsulation efficiency and release behavior of bioactives. Strategies applied for improvement of emulsifying and encapsulation properties of PLPs used in EBDSs are also reviewed. Special emphasis is given to the use of PLP-carbohydrate complexes for stabilizing bioactive-loaded emulsions.
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Affiliation(s)
- Asli Can Karaca
- Department of Food Engineering, Faculty of Chemical and Metallurgical Engineering, Istanbul Technical University, 34469 Istanbul, Turkey.
| | - Elham Assadpour
- Food Industry Research Co., Gorgan, Iran; Food and Bio-Nanotech International Research Center (Fabiano), Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
| | - Seid Mahdi Jafari
- Department of Food Materials and Process Design Engineering, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran; Universidade de Vigo, Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Science, E-32004 Ourense, Spain; College of Food Science and Technology, Hebei Agricultural University, Baoding 071001, China.
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16
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Duan M, Sun J, Yu S, Zhi Z, Pang J, Wu C. Insights into electrospun pullulan-carboxymethyl chitosan/PEO core-shell nanofibers loaded with nanogels for food antibacterial packaging. Int J Biol Macromol 2023; 233:123433. [PMID: 36709819 DOI: 10.1016/j.ijbiomac.2023.123433] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 11/19/2022] [Accepted: 01/22/2023] [Indexed: 01/27/2023]
Abstract
Nisin, a natural substance from Lactococcus lactis, displays a promising antibacterial ability against the gram-positive bacteria. However, it is susceptible to the external environment, i.e. temperature, pH, and food composition. In this study, a dual stabilization method, coaxial electrospinning, was applied to protect nisin in food packaging materials and the effect of nisin concentration on the properties of the nanofibers was investigated. The core-shell nanofibers with pullulan as a core layer and carboxymethyl chitosan (CMCS)/polyethylene oxide (PEO) as shell layer were prepared, and then the prepared CMCS-nisin nanogels (CNNGs) using a self-assembly method were loaded into the core layer of the nanofibers as antibacterial agents. The result revealed that the smooth surface can be observed on the nanofibers by microstructure characterization. The CNNGs-loaded nanofibers exhibited enhanced thermal stability and mechanical strength, as well as excellent antibacterial activity. Importantly, the as-formed nanofibers were applied to preserve bass fish and found that the shelf life of bass fish packed by CNNGSs with nisin at a concentration of 8 mg/mL was effectively extended from 9 days to 15 days. Taken together, the CNNGs can be well stabilized with the core-shell nanofibers, thus exerting significantly improved antimicrobial stability and bioactivity. This special structure exerts a great potential for application as food packaging materials to preserve aquatic products.
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Affiliation(s)
- Mengxia Duan
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Jishuai Sun
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Shan Yu
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Zijian Zhi
- Food Structure and Function (FSF) Research Group, Department of Food Technology, Safety and Health, Faculty of Bioscience Engineering, Ghent University, Gent, East Flanders 9000, Belgium.
| | - Jie Pang
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China; Engineering Research Centre of Fujian-Taiwan Special Marine Food Processing and Nutrition, Ministry of Education, Fuzhou, Fujian 350002, China.
| | - Chunhua Wu
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China; Engineering Research Centre of Fujian-Taiwan Special Marine Food Processing and Nutrition, Ministry of Education, Fuzhou, Fujian 350002, China.
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17
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Li C, Xie W, Zhang X, Liu J, Zhang M, Shao JH. Pickering emulsion stabilized by modified pea protein-chitosan composite particles as a new fat substitute improves the quality of pork sausages. Meat Sci 2023; 197:109086. [PMID: 36580792 DOI: 10.1016/j.meatsci.2022.109086] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 12/02/2022] [Accepted: 12/20/2022] [Indexed: 12/25/2022]
Abstract
Pickering emulsion is a potential substitute for animal fat due to high stability and solid-like properties. Therefore, the effect of replacing 25%-100% pork backfat with Pickering emulsion (75% corn oil volume fraction) stabilized by modified pea protein-chitosan composite particles on the quality of sausages was studied. All meat pastes exhibited a strong gel-like rheological character (G' > G"). The incorporation of Pickering emulsion in sausages enhanced the textural properties (hardness, springiness, chewiness, cohesiveness and resilience) and the uniformity and compactness of micromorphology, as well as suppressed the cooking loss and TBARS content. In particular, the sausages with a backfat substitution ratio of 100%, showing a similar overall sensory acceptability to the backfat sausage, revealed the best rheological properties, texture properties and micromorphology and the lowest cooking loss and fat oxidation (P < 0.05). The results showed that Pickering emulsion stabilized by modified pea protein-chitosan composite particles is a potential fat substitute for meat products with the desirable characteristics.
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Affiliation(s)
- Chunqiang Li
- College of Food Science, Shenyang Agricultural University, Shenyang, Liaoning 110866, China.
| | - Wenru Xie
- College of Food Science, Shenyang Agricultural University, Shenyang, Liaoning 110866, China
| | - Xue Zhang
- College of Food Science, Shenyang Agricultural University, Shenyang, Liaoning 110866, China
| | - Jun Liu
- College of Food Science, Shenyang Agricultural University, Shenyang, Liaoning 110866, China
| | - Mingyun Zhang
- College of Food Science, Shenyang Agricultural University, Shenyang, Liaoning 110866, China
| | - Jun-Hua Shao
- College of Food Science, Shenyang Agricultural University, Shenyang, Liaoning 110866, China
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18
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Qiao X, Liu F, Kong Z, Yang Z, Dai L, Wang Y, Sun Q, McClements DJ, Xu X. Pickering emulsion gel stabilized by pea protein nanoparticle induced by heat-assisted pH-shifting for curcumin delivery. J FOOD ENG 2023. [DOI: 10.1016/j.jfoodeng.2023.111504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023]
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19
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D'Alessio G, Flamminii F, Faieta M, Prete R, Di Michele A, Pittia P, Di Mattia CD. High pressure homogenization to boost the technological functionality of native pea proteins. Curr Res Food Sci 2023; 6:100499. [PMID: 37081859 PMCID: PMC10111953 DOI: 10.1016/j.crfs.2023.100499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 03/27/2023] [Accepted: 03/27/2023] [Indexed: 03/31/2023] Open
Abstract
Pea proteins are being increasingly used for the formulation of plant-based products, but their globular structure and the presence of aggregates can affect their technological properties. In this study, the effect of high pressure homogenization (HPH) at different intensities (60 and 100 MPa) was investigated as a pre-treatment to modulate the techno-functional properties of a pea protein isolate (IP) extracted through an alkaline extraction/isoelectric precipitation process. SDS-PAGE, circular dichroism, thermal properties, total free sulfhydryl groups, antioxidant capacity and reducing properties were evaluated along with technological indices as solubility, WHC and OHC, interfacial tension and emulsifying capacity. HPH treatments were able to unfold and modify proteins structure, leading also to a change of the relative abundance of pea protein globulins (SDS-PAGE) and of the vicilin to legumin ratio. Solubility, WHC and OHC were improved, while interfacial tension and emulsifying capacity were weakly affected. However, an enhanced physical stability over time of the emulsions prepared with the 60 MPa-treated protein was found, likely as an effect of the decreased ratio between vicilin and legumin after treatment. Results of this study will contribute to deepen the effect of the HPH technology used as pre-treatment, adding useful results and expanding knowledge about the structure and techno-functional properties of native and modified pea proteins.
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Affiliation(s)
- Giulia D'Alessio
- Department of Bioscience and Agro-Food and Environmental Technology, University of Teramo, Via R. Balzarini 1, 64100, Teramo, Italy
| | - Federica Flamminii
- Department of Innovative Technologies in Medicine and Dentistry, University “G. D'Annunzio” of Chieti-Pescara, Via dei Vestini, 66100, Chieti, Italy
| | - Marco Faieta
- Department of Bioscience and Agro-Food and Environmental Technology, University of Teramo, Via R. Balzarini 1, 64100, Teramo, Italy
| | - Roberta Prete
- Department of Bioscience and Agro-Food and Environmental Technology, University of Teramo, Via R. Balzarini 1, 64100, Teramo, Italy
| | - Alessandro Di Michele
- Department of Physics and Geology, University of Perugia, Via Pascoli, 06123, Perugia, Italy
| | - Paola Pittia
- Department of Bioscience and Agro-Food and Environmental Technology, University of Teramo, Via R. Balzarini 1, 64100, Teramo, Italy
| | - Carla Daniela Di Mattia
- Department of Bioscience and Agro-Food and Environmental Technology, University of Teramo, Via R. Balzarini 1, 64100, Teramo, Italy
- Corresponding author.
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20
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Wu C, Zhi Z, Duan M, Sun J, Jiang H, Pang J. Insights into the formation of carboxymethyl chitosan-nisin nanogels for sustainable antibacterial activity. Food Chem 2023; 402:134260. [DOI: 10.1016/j.foodchem.2022.134260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 08/26/2022] [Accepted: 09/12/2022] [Indexed: 11/28/2022]
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21
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Han J, Sun Y, Zhang T, Wang C, Xiong L, Ma Y, Zhu Y, Gao R, Wang L, Jiang N. The preservable effects of ultrasound-assisted alginate oligosaccharide soaking on cooked crayfish subjected to Freeze-Thaw cycles. ULTRASONICS SONOCHEMISTRY 2023; 92:106259. [PMID: 36502681 PMCID: PMC9758566 DOI: 10.1016/j.ultsonch.2022.106259] [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: 09/07/2022] [Revised: 11/22/2022] [Accepted: 12/04/2022] [Indexed: 05/31/2023]
Abstract
To improve the quality of cooked and frozen crayfish after repeated freeze-thaw cycles, the effects of alginate oligosaccharide (1 %, w/v) with ultrasound-assisted (40 W, 3 min) soaking (AUS) on the physicochemical properties were investigated. The AUS samples improved water-holding capacity with 19.47 % higher than the untreated samples. Low-field nuclear magnetic resonance confirmed that mobile water (T22) in the samples after 5 times of freeze-thaw cycles was reduced by 13.02 % and 29.34 % with AUS and without treatment, correspondingly; and with AUS and without treatment, average size of the ice crystals was around 90.26 μm2 and 113.73 μm2, and average diameter of the ice crystals was 5.83 μm and 8.14 μm, respectively; furthermore, it enhanced the solubility and zeta potential, lowered the surface hydrophobicity, reduced the particle size, and maintained the secondary and tertiary structures of myofibrillar protein (MP) after repeated freeze-thawing. Gel electrophoresis revealed that the AUS treatment mitigated the denaturation of MPs. Scanning electron microscopy revealed that the AUS treatment preserved the structure of the tissue. These findings demonstrated that the AUS treatment could enhance the water retention and physicochemical properties of protein within aquatic meat products during temperature fluctuations..
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Affiliation(s)
- Jiping Han
- Institute of Farm Product Processing, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China; College of Food and Bioengineering, Jiangsu University, Zhenjiang 212013, China; Integrated Scientific Research Base for Preservation, Storage and Processing Technology of Aquatic Products of the Ministry of Agriculture and Rural Areas, Nanjing 210014, China
| | - Yingjie Sun
- Institute of Farm Product Processing, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China; College of Food and Bioengineering, Jiangsu University, Zhenjiang 212013, China; Integrated Scientific Research Base for Preservation, Storage and Processing Technology of Aquatic Products of the Ministry of Agriculture and Rural Areas, Nanjing 210014, China
| | - Tao Zhang
- College of Food Science and Engineering, Nanjing University of Finance & Economics, Nanjing 210014, China.
| | - Cheng Wang
- Institute of Farm Product Processing, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China; Integrated Scientific Research Base for Preservation, Storage and Processing Technology of Aquatic Products of the Ministry of Agriculture and Rural Areas, Nanjing 210014, China
| | - Lingming Xiong
- Institute of Farm Product Processing, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China; Integrated Scientific Research Base for Preservation, Storage and Processing Technology of Aquatic Products of the Ministry of Agriculture and Rural Areas, Nanjing 210014, China
| | - Yanhong Ma
- Institute of Farm Product Processing, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China; Integrated Scientific Research Base for Preservation, Storage and Processing Technology of Aquatic Products of the Ministry of Agriculture and Rural Areas, Nanjing 210014, China
| | - Yongzhi Zhu
- Institute of Farm Product Processing, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China; Integrated Scientific Research Base for Preservation, Storage and Processing Technology of Aquatic Products of the Ministry of Agriculture and Rural Areas, Nanjing 210014, China
| | - Ruichang Gao
- College of Food and Bioengineering, Jiangsu University, Zhenjiang 212013, China
| | - Lin Wang
- College of Food and Bioengineering, Jiangsu University, Zhenjiang 212013, China
| | - Ning Jiang
- Institute of Farm Product Processing, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China; College of Food and Bioengineering, Jiangsu University, Zhenjiang 212013, China; Integrated Scientific Research Base for Preservation, Storage and Processing Technology of Aquatic Products of the Ministry of Agriculture and Rural Areas, Nanjing 210014, China.
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22
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Zhao D, Ge Y, Xiang X, Dong H, Qin W, Zhang Q. Structure and stability characterization of pea protein isolate-xylan conjugate-stabilized nanoemulsions prepared using ultrasound homogenization. ULTRASONICS SONOCHEMISTRY 2022; 90:106195. [PMID: 36240589 PMCID: PMC9576981 DOI: 10.1016/j.ultsonch.2022.106195] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 10/03/2022] [Accepted: 10/09/2022] [Indexed: 06/02/2023]
Abstract
Preparation of pea protein isolate-xylan (PPI-X) conjugate-stabilized nanoemulsions using ultrasonic homogenization and the corresponding structure and environmental stability were investigated in this study. Conditions used to prepare nanoemulsions were optimized using a response surface methodology as follows: protein concentration 8.86 mg/mL, ultrasound amplitudes 57 % (370.5 W), and ultrasound time 16 min. PPI-X conjugate-stabilized nanoemulsions formed under these conditions exhibited less mean droplet size (189.4 ± 0.45 nm), more uniform droplet distribution, greater absolute value of zeta-potential (44.8 ± 0.22 mV), and higher protein adsorption content compared with PPI-stabilized nanoemulsions. PPI-X conjugate-stabilized nanoemulsions also exhibited even particle distribution and dense network structure, which might be reasons for the observed high interfacial protein adsorption content of conjugate-stabilized nanoemulsions. Moreover, better stability against environmental stresses, such as thermal treatment, freeze-thaw treatment, ionic strength and type, and storage time was also observed for the conjugate-stabilized nanoemulsions, indicating that this type of nanoemulsions possess a potential to endure harsh food processing conditions. Therefore, results provide a novel approach for the preparation of protein-polysaccharide conjugate-stabilized nanoemulsions to be applied as novel ingredients to meet special requirements of processed foods.
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Affiliation(s)
- Dan Zhao
- Key Laboratory of Agricultural Product Processing and Nutrition and Health (Co-construction by Ministry and province), Ministry of Agriculture and Rural Affairs, College of Food Science, Sichuan Agricultural University, No. 46, Xinkang Road, Ya'an 625014, Sichuan, China
| | - Yuhong Ge
- Key Laboratory of Agricultural Product Processing and Nutrition and Health (Co-construction by Ministry and province), Ministry of Agriculture and Rural Affairs, College of Food Science, Sichuan Agricultural University, No. 46, Xinkang Road, Ya'an 625014, Sichuan, China
| | - Xianrong Xiang
- Key Laboratory of Agricultural Product Processing and Nutrition and Health (Co-construction by Ministry and province), Ministry of Agriculture and Rural Affairs, College of Food Science, Sichuan Agricultural University, No. 46, Xinkang Road, Ya'an 625014, Sichuan, China
| | - Hongmin Dong
- Department of Food Science, College of Agriculture and Life Sciences, Cornell University, Ithaca, 14853, NY, USA
| | - Wen Qin
- Key Laboratory of Agricultural Product Processing and Nutrition and Health (Co-construction by Ministry and province), Ministry of Agriculture and Rural Affairs, College of Food Science, Sichuan Agricultural University, No. 46, Xinkang Road, Ya'an 625014, Sichuan, China
| | - Qing Zhang
- Key Laboratory of Agricultural Product Processing and Nutrition and Health (Co-construction by Ministry and province), Ministry of Agriculture and Rural Affairs, College of Food Science, Sichuan Agricultural University, No. 46, Xinkang Road, Ya'an 625014, Sichuan, China.
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23
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Zhong W, Zhi Z, Zhao J, Li D, Yu S, Duan M, Xu J, Tong C, Pang J, Wu C. Oxidized Chitin Nanocrystals Greatly Strengthen the Stability of Resveratrol-Loaded Gliadin Nanoparticles. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:13778-13786. [PMID: 36196864 DOI: 10.1021/acs.jafc.2c04174] [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] [Indexed: 06/16/2023]
Abstract
Resveratrol (RES) is a natural polyphenol with a variety of health beneficial properties, but its application is greatly limited due to low aqueous solubility and poor bioavailability. This study aims to address these issues via gliadin nanoparticles stabilized with oxidized chitin nanocrystals (O-ChNCs) as a delivery system for RES. RES-loaded gliadin nanoparticles (GRNPs) were fabricated by an antisolvent method, and their formation mechanism was elucidated using zeta-potential, FTIR, XRD, and TEM. Furthermore, the effect of O-ChNCs on the colloidal stability and bioactiveness of GRNPs was discussed. The results demonstrate that O-ChNCs are adsorbed onto the surface of GRNPs through hydrogen bonding and electrostatic interactions, leading to the enhanced absolute potential and the improved hydrophobicity of the particles, which in turn facilitates the stability of the GRNPs. Furthermore, the changes in the release profile and antioxidant activity of RES in the simulated gastric and intestinal tracts indicate that the adsorption of O-ChNCs not only delays the release of RES but also has a protective effect on the antioxidant capacity of RES. This study provides significant implications for developing stable gliadin nanoparticles as delivery vehicles for bioactive substances.
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Affiliation(s)
- Weiquan Zhong
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian350002, China
| | - Zijian Zhi
- Food Structure and Function (FSF) Research Group, Department of Food Technology, Safety and Health, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, Gent9000, Belgium
| | - Jianbo Zhao
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian350002, China
| | - Danjie Li
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian350002, China
| | - Shan Yu
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian350002, China
| | - Mengxia Duan
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian350002, China
| | - Jingting Xu
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian350002, China
| | - Cailing Tong
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian350002, China
| | - Jie Pang
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian350002, China
| | - Chunhua Wu
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian350002, China
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24
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Physicochemical Characterization of Interactions between Blueberry Polyphenols and Food Proteins from Dairy and Plant Sources. Foods 2022; 11:foods11182846. [PMID: 36140972 PMCID: PMC9497991 DOI: 10.3390/foods11182846] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 08/19/2022] [Accepted: 09/08/2022] [Indexed: 11/16/2022] Open
Abstract
Polyphenols are widely known for their benefits to human health; however, dietary intake of this class of compounds is low in the United States due to low intake of fruits and vegetables. Dairy foods (i.e., milk, yogurt) have been shown to increase polyphenol bioavailability via protein–polyphenol interactions, which may have important implications for human health. Increasing consumer interest in sustainability and health has led to the introduction of a variety of novel plant-based proteins and related food products as dairy alternatives. This study compared whey, a popular dairy-based food protein, to pea and hemp proteins for their abilities to form complexes with polyphenols from blueberries, which are a widely consumed fruit in the US with demonstrated health effects. Physical and chemical characteristics of each protein extract in the presence and absence of blueberry polyphenols were investigated using a variety of spectroscopic methods. The influence of polyphenol complexation on protein digestion was also assessed in vitro. While all proteins formed complexes with blueberry polyphenols, the hemp and pea proteins demonstrated greater polyphenol binding affinities than whey, which may be due to observed differences in protein secondary structure. Polyphenol addition did not affect the digestion of any protein studied. Solution pH appeared to play a role in protein–polyphenol complex formation, which suggests that the effects observed in this model food system may differ from food systems designed to mimic other food products, such as plant-based yogurts. This study provides a foundation for exploring the effects of plant-based proteins on phytochemical functionality in complex, “whole food” matrices, and supports the development of plant-based dairy analogs aimed at increasing polyphenol stability and bioavailability.
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A combination of alkaline pH-shifting/acidic pH and thermal treatments improves the solubility and emulsification properties of wheat glutenin. Food Chem 2022; 393:133358. [PMID: 35661594 DOI: 10.1016/j.foodchem.2022.133358] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 05/24/2022] [Accepted: 05/29/2022] [Indexed: 11/21/2022]
Abstract
Glutenin has limited applicability in food industry due to poor water solubility and emulsifying properties. In this study, the physicochemical properties of glutenin were improved by combined treatments of alkaline pH-shifting or acidic pH with heating. The surface morphology, structure and physicochemical properties were measured during the modification process of glutenin. Results showed that the smaller square clusters and regular tubular fibrils were observed in modified glutenin and the α-helix proportion of the treated glutenin was finally increased to 59.90 ± 0.01%. Compared with untreated glutenin, the combined treatments of pH-shifting with heating as well as fibrillation process increased the solubility of glutenin by 21.3 and 3.5 times, respectively. Moreover, the treated glutenin showed excellent emulsifying stability (EAI: 50.84 ± 0.51 m2g-1) and thermal stability (peak temperature increased from 109.58 to 149.05 °C). This study provides an informative basis for improving the physicochemical and functional properties of glutenin.
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