1
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Van den Wouwer B, Brijs K, Wouters AGB, Raes K. The effect of ultrasound on the extraction and foaming properties of proteins from potato trimmings. Food Chem 2024; 455:139877. [PMID: 38824726 DOI: 10.1016/j.foodchem.2024.139877] [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: 04/05/2024] [Revised: 05/09/2024] [Accepted: 05/27/2024] [Indexed: 06/04/2024]
Abstract
High-intensity ultrasonication is an emerging technology for plant protein isolation and modification. In this study, the potential of temperature-controlled ultrasonication to enhance the recovery of functional proteins from potato trimmings was assessed. Different ultrasound energy levels [2000-40,000 J/g fresh weight (FW)] were applied during protein extraction at pH 9.0. True protein yields after ultrasonication significantly increased (up to 91%) compared to conventional extraction (33%). Microstructural analysis of the extraction residues showed more disrupted cells as ultrasonication time increased. Ultrasound treatments (10,000 and 20,000 J/g FW) increased the protein yield without affecting the foaming and air-water interfacial properties of protein isolates obtained after isoelectric precipitation (pH 4.0). However, proteins obtained after extended ultrasonication (40,000 J/g FW) had significantly slower early-stage adsorption kinetics. This was attributed to ultrasound-induced aggregation of the protease inhibitor fraction. In conclusion, ultrasonication shows potential to help overcome some challenges associated with plant protein extraction.
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Affiliation(s)
- Ben Van den Wouwer
- Research Unit VEG-i-TEC, Department of Food Technology, Safety and Health, Faculty of Bioscience Engineering, Ghent University, Sint-Martens-Latemlaan 2B, 8500 Kortrijk, Belgium; Laboratory of Food Chemistry and Biochemistry, KU Leuven, Kasteelpark Arenberg 20, 3001 Leuven, Belgium.
| | - Kristof Brijs
- Laboratory of Food Chemistry and Biochemistry, KU Leuven, Kasteelpark Arenberg 20, 3001 Leuven, Belgium.
| | - Arno G B Wouters
- Laboratory of Food Chemistry and Biochemistry, KU Leuven, Kasteelpark Arenberg 20, 3001 Leuven, Belgium.
| | - Katleen Raes
- Research Unit VEG-i-TEC, Department of Food Technology, Safety and Health, Faculty of Bioscience Engineering, Ghent University, Sint-Martens-Latemlaan 2B, 8500 Kortrijk, Belgium.
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2
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Zhang S, Sun Y, Xie Q, Jiang Y, Cheng J. Effect of different salts on the foaming properties of model protein systems for infant formula. J Dairy Sci 2024; 107:2668-2680. [PMID: 37863295 DOI: 10.3168/jds.2023-24080] [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: 08/11/2023] [Accepted: 09/29/2023] [Indexed: 10/22/2023]
Abstract
This multiscale study aimed to evaluate the effects of different salts (NaCl, KCl, MgCl2, and CaCl2) on the foaming capacity (FC) and foam stability (FS) of model protein systems (MPS) for infant formula via changes in surface and structural properties. Our results showed that the FC and FS of MPS were increased with the addition of NaCl, KCl, and MgCl2, whereas CaCl2 significantly decreased FC (79.5 ± 10.6%) and increased FS (93.2 ± 2.2%). The surface hydrophobicity was increased and the net charge and surface tension were reduced after the addition of salts. Structural analysis revealed the reduction of intensity of intrinsic fluorescence spectroscopy and UV absorption, and the conversion of α-helix into β-strand, which was attributed to protein agglomeration. Additionally, MgCl2 and CaCl2 exhibited larger size and lower net charge compared with NaCl and KCl, indicating a greater ability to bind to charged amino acids and form larger aggregates. Correlation analysis indicated that FC was positively related to adsorbed protein and β-turn and negatively correlated with particle size. In addition, FS showed a positive correlation with β-strand, apparent viscosity, and zeta potential. However, it exhibited a negative correlation with β-turn, α-helix, and sulfhydryl content. These results provide a theoretical reference for further understanding of the effect of salts on the foaming properties of MPS.
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Affiliation(s)
- Siyu Zhang
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Yuxue Sun
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Qinggang Xie
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China; Feihe Dairy Company, Heilongjiang 164899, China
| | - Yunqing Jiang
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China.
| | - Jianjun Cheng
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China.
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3
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Yang Y, Zhang C, Ma CM, Bian X, Zou L, Fu Y, Shi YG, Wu Y, Zhang N. Characterization of structural and functional properties of soybean 11S globulin during renaturation after denaturation induced by changes in pH. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024. [PMID: 38567792 DOI: 10.1002/jsfa.13505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 03/20/2024] [Accepted: 03/03/2024] [Indexed: 04/18/2024]
Abstract
BACKGROUND This study explored the denaturation of 11S globulin, a protein known for its diverse functional properties in soy protein applications, at pH 3.0 and pH 10.0, followed by a gradual return to pH 7.0 to facilitate renaturation. It investigated the structural and functional changes during renaturation induced by a change in pH, revealing the stabilization mechanism of 11S globulin. RESULTS The findings revealed that during pH adjustment to neutral, the denatured soybean 11S globulin - resulting from alkaline (pH 10.0) or acidic (pH 3.0) treatments - experienced a refolding of its extended tertiary structure to varying extents. The particle size and the proportions of α-helix and β-sheet in the secondary structure aligned progressively with those of the natural-state protein. However, for the alkali-denatured 11S, the β-sheet content decreased upon adjustment to neutral, whereas an increase was observed for the acid-denatured 11S. In terms of functional properties, after alkaline denaturation, the foaming capacity (FC) and emulsifying activity index (EAI) of 11S increased by 1.4 and 1.2 times, respectively, in comparison with its native state. The solubility, foamability, and emulsifiability of the alkali-denatured 11S gradually diminished during renaturation but remained superior to those of the native state. Conversely, these properties showed an initial decline, followed by an increase during renaturation triggered by pH neutralization. CONCLUSIONS This research contributes to the enhancement of protein functionality, offering a theoretical foundation for the development of functional soy protein products and expanding their potential applications. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Yang Yang
- College of Food Engineering, Harbin University of Commerce, Harbin, China
| | - Can Zhang
- College of Food Engineering, Harbin University of Commerce, Harbin, China
| | - Chun-Min Ma
- College of Food Engineering, Harbin University of Commerce, Harbin, China
| | - Xin Bian
- College of Food Engineering, Harbin University of Commerce, Harbin, China
| | - Ling Zou
- College of Food Engineering, Harbin University of Commerce, Harbin, China
| | - Yu Fu
- College of Food Science, Southwest University, Chongqing, China
| | - Yan-Guo Shi
- College of Food Engineering, Harbin University of Commerce, Harbin, China
| | - Yan Wu
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Na Zhang
- College of Food Engineering, Harbin University of Commerce, Harbin, China
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4
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Zhang S, Hao J, Xie Q, Pi X, Peng Z, Sun Y, Cheng J. pH-induced physiochemical and structural changes of milk proteins mixtures and its effect on foaming behavior. Int J Biol Macromol 2024; 254:127838. [PMID: 37923034 DOI: 10.1016/j.ijbiomac.2023.127838] [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: 10/18/2023] [Accepted: 10/31/2023] [Indexed: 11/07/2023]
Abstract
Milk proteins are well known to produce aerated food due to the amphiphilicity. However, milk proteins are commonly added in blends for the desirable properties in food industry. In this study, the foaming properties of milk protein mixtures (MPM), a mixtures of whey protein isolated (WPI) and milk protein concentrate (MPC), was studied through foaming capacity (FC), foam stability (FS), and foam morphology at pH 3.0-9.0. Physiochemical, structural, surface properties, and Pearson correlation analysis were measured to gain insight into foaming behavior. Results indicated that MPM showed excellent FC (113.0-114.3 %) and FS (90.7-93.0 %) at pH 6.0-9.0, and foam displayed a smaller size and uniform distribution. MPM solutions showed smaller particles, higher solubility, and lower apparent viscosity at pH 6.0-9.0, which resulted in an increase in surface pressure and adsorption rate (Kdiff), facilitating more protein absorbed to interface. To further investigate structural changes, various spectral methods were used, in which the structure of MPM was changed with pH. Correlation analysis further suggests that Kdiff and solubility positively affect the formation of foam, while free sulfhydryl and β-sheet contributed to stabilizing foams. These findings provide valuable information on MPM as ingredients for aerated foods under acidic, neutral, and alkaline conditions.
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Affiliation(s)
- Siyu Zhang
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Junli Hao
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Qinggang Xie
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China; HeiLongJiang FeiHe Dairy Co., Ltd., Beijing 100015, China
| | - Xiaowen Pi
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Zeyu Peng
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Yuxue Sun
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China.
| | - Jianjun Cheng
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China.
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5
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Zhao W, Wei Z, Xue C. Foam-templated oleogels constructed by whey protein isolate and xanthan gum: Multiple-effect delivery vehicle for Antarctic krill oil. Int J Biol Macromol 2024; 256:128391. [PMID: 38029892 DOI: 10.1016/j.ijbiomac.2023.128391] [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: 06/28/2023] [Revised: 11/05/2023] [Accepted: 11/22/2023] [Indexed: 12/01/2023]
Abstract
To address the limitations of Antarctic krill oil (AKO) such as easy oxidation, unacceptable fishy flavor and low bioaccessibility of astaxanthin in it, a multiple-effect delivery vehicle for AKO is needed. In this study, whey protein isolate (WPI) and xanthan gum (XG) were utilized to construct AKO into oleogels by generating foam-templates. The effects of the concentration of XG on the properties of foam, cryogel and the corresponding oleogels were investigated, and the formation mechanism of oleogel was discussed from the perspective of the correlation between foam-cryogel-oleogel. The results demonstrated that with the increase of the concentration of XG, the foam stability was improved, the cryogel after freeze drying had a more uniform network structure and superior oil absorption ability, and the corresponding oleogel had excellent oil holding ability after oil absorption. The AKO oleogels showed superior oxidative stability compared with AKO. The in vitro digestion experiments demonstrated that the bioaccessibility of the astaxanthin in this oleogel was also considerably higher than that in AKO. In addition, this oleogel had masking effect on the odor-presenting substances in AKO, while retaining other flavors of AKO. The foam-templated oleogel can be considered as a multiple-effect vehicle for AKO to facilitate its application in food products. This study provides theoretical basis and data support for the development and utilization of novel vehicle for AKO, broadening the application of AKO in the field of food science.
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Affiliation(s)
- Wanjun Zhao
- State Key Laboratory of Marine Food Processing & Safety Control, College of Food Science and Engineering, Ocean University of China, Qingdao 266404, China
| | - Zihao Wei
- State Key Laboratory of Marine Food Processing & Safety Control, College of Food Science and Engineering, Ocean University of China, Qingdao 266404, China.
| | - Changhu Xue
- State Key Laboratory of Marine Food Processing & Safety Control, College of Food Science and Engineering, Ocean University of China, Qingdao 266404, China; Laboratory of Marine Drugs and Biological Products, The Laoshan Laboratory, Qingdao 266235, China
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6
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Gul O, Gul LB, Baskıncı T, Parlak ME, Saricaoglu FT. Influence of pH and ionic strength on the bulk and interfacial rheology and technofunctional properties of hazelnut meal protein isolate. Food Res Int 2023; 169:112906. [PMID: 37254341 DOI: 10.1016/j.foodres.2023.112906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 04/05/2023] [Accepted: 04/24/2023] [Indexed: 06/01/2023]
Abstract
The functional, bulk, and interfacial shear rheological properties of hazelnut protein isolate were studied at different pH values between 3.0 and 8.0 and ionic strength levels between 0.0 and 1.0 M. The results showed that pH significantly affected protein solubility, emulsion properties, water and oil holding capacities, foam stability, surface hydrophobicity, and free -SH groups. The highest surface hydrophobicity, free -SH groups, and better functional properties were observed at pH 8.0. Protein solubility also increased with increasing ionic strength up to 0.6 M. The emulsion and foam stability of hazelnut protein isolate showed similar changes with protein solubility. The flow behavior of hazelnut protein suspensions was found to be shear thinning with the highest consistency index at pH 3.0 and the lowest at pH 6.0, however, the ionic strength did not significantly affect the consistency coefficient but did cause a significant change in the flow behavior index, with the lowest value observed at 0.6 M. The best gel structure in hazelnut proteins was observed at pH 3.0 and 4.0. The addition of ions at 0.4 and 0.6 M concentrations resulted in an improved viscoelastic character. The hazelnut protein isolate was also found to form solid-like viscoelastic layers at both air-water and oil-water interfaces, with the interfacial adsorption behavior affected by both pH and ionic strength. Overall, these results suggest that pH and ionic strength have significant effects on the functional and rheological properties of hazelnut protein isolate, which may have the potential as an auxiliary substance in food systems.
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Affiliation(s)
- Osman Gul
- Department of Food Engineering, Faculty of Engineering and Architecture, Kastamonu University, Kastamonu, Turkey
| | - Latife Betul Gul
- Department of Food Engineering, Faculty of Engineering, Giresun University, Giresun, Turkey.
| | - Tugba Baskıncı
- Department of Food Engineering, Faculty of Engineering and Architecture, Kastamonu University, Kastamonu, Turkey
| | - Mahmut Ekrem Parlak
- Department of Food Engineering, Faculty of Engineering and Natural Sciences, Bursa Technical University, Bursa, Turkey
| | - Furkan Turker Saricaoglu
- Department of Food Engineering, Faculty of Engineering and Natural Sciences, Bursa Technical University, Bursa, Turkey
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7
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Rahim FNA, Ibadullah WZW, Saari N, Brishti FH, Mustapha NA, Ahmad N, Arulrajah B. The effect of alkaline extraction and drying techniques on the physicochemical, structural properties and functionality of rice bran protein concentrates. Int J Biol Macromol 2023:124908. [PMID: 37217045 DOI: 10.1016/j.ijbiomac.2023.124908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 04/25/2023] [Accepted: 05/13/2023] [Indexed: 05/24/2023]
Abstract
Rice bran protein concentrates (RBPC) were extracted using mild alkaline solvents (pH: 8, 9, 10). The physicochemical, thermal, functional, and structural aspects of freeze-drying (FD) and spray-drying (SD) were compared. FD and SD of RBPC had porous and grooved surfaces, with FD having non-collapsed plates and SD being spherical. Alkaline extraction increases FD's protein concentration and browning, whereas SD inhibits browning. According to amino acid profiling, RBPC-FD9's extraction optimizes and preserves amino acids. A tremendous particle size difference was prominent in FD, thermally stable at a minimal maximum of 92 °C. Increased pH extraction gives FD greater exposal surface hydrophobicity and positively relates to denaturation enthalpy. Mild pH extraction and drying significantly impacted solubility, improved emulsion properties, and foaming properties of RBPC as observed in acidic, neutral, and alkaline environments. RBPC-FD9 and RBPC-SD10 extracts exhibit outstanding foaming and emulsion activity in all pH conditions, respectively. Appropriate drying selection, RBPC-FD or SD potentially employed as foaming/emulsifier agent or meat analog.
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Affiliation(s)
- Farah Nadiah Abd Rahim
- Department of Food Science, Faculty of Food Science and Technology, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
| | - Wan Zunairah Wan Ibadullah
- Department of Food Science, Faculty of Food Science and Technology, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia.
| | - Nazamid Saari
- Department of Food Science, Faculty of Food Science and Technology, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
| | - Fatema Hossain Brishti
- Department of Food Technology, Faculty of Food Science and Technology, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
| | - Nor Afizah Mustapha
- Department of Food Technology, Faculty of Food Science and Technology, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
| | - Noorlaila Ahmad
- Faculty of Applied Sciences, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia
| | - Brisha Arulrajah
- Department of Food Science, Faculty of Food Science and Technology, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
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8
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Aery S, Parry A, Araiza-Calahorra A, Evans SD, Gleeson HF, Dan A, Sarkar A. Ultra-stable liquid crystal droplets coated by sustainable plant-based materials for optical sensing of chemical and biological analytes. JOURNAL OF MATERIALS CHEMISTRY. C 2023; 11:5831-5845. [PMID: 37153011 PMCID: PMC10158717 DOI: 10.1039/d3tc00598d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 04/11/2023] [Indexed: 05/09/2023]
Abstract
Herein, we demonstrate for the first time the synthesis of ultra-stable, spherical, nematic liquid crystal (LC) droplets of narrow size polydispersity coated by sustainable, biodegradable, plant-based materials that trigger a typical bipolar-to-radial configurational transition in dynamic response to chemical and biological analytes. Specifically, a highly soluble polymer, potato protein (PoP) and a physically-crosslinked potato protein microgel (PoPM) of ∼100 nm in diameter, prepared from the PoP, a byproduct of the starch industry, were compared for their ability to coat LC droplets. Although both PoP and PoPM were capable of reducing the interfacial tension between water and n-tetradecane <30 mN m-1, PoPM-coated LC droplets showed better stability than the PoP-coated droplets via a Pickering-like mechanism. Strikingly, the Pickering LC droplets outperformed PoP-stabilized droplets in terms of dynamic response with 5× lower detection limit to model chemical analytes (sodium dodecyl sulphate, SDS) due to the difference in SDS-binding features between the protein and the microgel. To eliminate the effect of size polydispersity on the response, monodisperse Pickering LC droplets of diameter ∼16 μm were additionally obtained using microfluidics, which mirrored the response to chemical as well as biological analytes, i.e., primary bile acid, an important biomarker of liver diseases. We demonstrate that these eco-friendly microgels used for creating monodisperse, ultra-stable, LC complex colloids are powerful templates for fabricating next generation, sustainable optical sensors for early diagnosis in clinical settings and other sensing applications.
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Affiliation(s)
- Shikha Aery
- Department of Chemistry and Centre for Advanced Studies in Chemistry, Panjab University Chandigarh 160014 India
- Food Colloids and Bioprocessing Group, School of Food Science and Nutrition, University of Leeds LS2 9JT UK
| | - Adele Parry
- School of Physics and Astronomy, University of Leeds LS2 9JT UK
| | - Andrea Araiza-Calahorra
- Food Colloids and Bioprocessing Group, School of Food Science and Nutrition, University of Leeds LS2 9JT UK
| | - Stephen D Evans
- School of Physics and Astronomy, University of Leeds LS2 9JT UK
| | - Helen F Gleeson
- School of Physics and Astronomy, University of Leeds LS2 9JT UK
| | - Abhijit Dan
- Department of Chemistry and Centre for Advanced Studies in Chemistry, Panjab University Chandigarh 160014 India
- Department of Applied Chemistry, Maulana Abul Kalam Azad University of Technology, Simhat Haringhata West Bengal 741249 India
| | - Anwesha Sarkar
- Food Colloids and Bioprocessing Group, School of Food Science and Nutrition, University of Leeds LS2 9JT UK
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9
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DOMIAN EWA, MAŃKO-JURKOWSKA DIANA, GÓRSKA AGNIESZKA. HEAT-INDUCED GELATION, RHEOLOGY AND STABILITY OF OIL-IN-WATER EMULSIONS PREPARED WITH PATATIN-RICH POTATO PROTEIN. FOOD AND BIOPRODUCTS PROCESSING 2023. [DOI: 10.1016/j.fbp.2023.03.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
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10
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Zhao H, Zhao R, Liu X, Zhang L, Liu Q, Liu W, Wu T, Hu H. Effect of high intensity ultrasonic treatment on structural, rheological, and gelling properties of potato protein isolate and its co-gelation properties with egg white protein. J Food Sci 2023; 88:1553-1565. [PMID: 36789854 DOI: 10.1111/1750-3841.16495] [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: 06/24/2022] [Revised: 01/07/2023] [Accepted: 01/18/2023] [Indexed: 02/16/2023]
Abstract
The study aimed to investigate the effect of high intensity ultrasonic (HIU) treatment at different times (0, 10, 20, and 30 min) on the structure and gel properties of water-soluble potato protein isolate (WPPI) and to further investigate the improvement of gel properties of ultrasonicated WPPI (UWPPI) by the addition of egg white protein (EWP). HIU reduced the particle size of WPPI, whose structure became loose and disordered, which improved gelling properties of UWPPI. Fourier transform infrared results indicated that α-helix content decreased, whereas the proportion of irregular curl increased with the increase in ultrasonication time (0-20 min), indicating that the initially ordered structure of UWPPI became disordered. After HIU treatment, the free sulfhydryl groups of UWPPI and surface hydrophobicity decreased and fluorescence intensity increased. These results demonstrated that the HIU loosened the structure of UWPPI, exposing more chromogenic groups while embedding more hydrophilic groups. After thermal induction, UWPPI gel hardness increased and exhibited excellent water holding capacity. After the addition of EWP, rheological properties stabilized, and the hardness of UWPPI-EWP gels increased significantly, forming internally structured protein gels with a tightly ordered structure and increased brightness. Thus, HIU changed the structure and gelling properties of WPPI, and the addition of EWP further enhanced the performance of hybrid protein gels. PRACTICAL APPLICATION: High intensity ultrasonic changed the structure of water-soluble potato protein isolate (WPPI) and improved the properties of WPPI gels. The addition of egg white protein significantly improved the quality of mixed protein gels which showed great potential industrial value.
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Affiliation(s)
- Hongxi Zhao
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Comprehensive Key Laboratory of Agro-products Processing, Ministry of Agriculture and Rural Affairs, Beijing, China.,State Key Laboratory of Food Nutrition and Safety, Food Biotechnology Engineering Research Center of, Ministry of Education, College of food Science and Engineering, Tianjin University of Science & Technology, Tianjin, China
| | - Ruixuan Zhao
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Comprehensive Key Laboratory of Agro-products Processing, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Xinshuo Liu
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Comprehensive Key Laboratory of Agro-products Processing, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Liang Zhang
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Comprehensive Key Laboratory of Agro-products Processing, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Qiannan Liu
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Comprehensive Key Laboratory of Agro-products Processing, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Wei Liu
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Comprehensive Key Laboratory of Agro-products Processing, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Tao Wu
- State Key Laboratory of Food Nutrition and Safety, Food Biotechnology Engineering Research Center of, Ministry of Education, College of food Science and Engineering, Tianjin University of Science & Technology, Tianjin, China
| | - Honghai Hu
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Comprehensive Key Laboratory of Agro-products Processing, Ministry of Agriculture and Rural Affairs, Beijing, China
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11
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Wierenga PA, Basheva ES, Delahaije RJBM. Variations in foam collapse and thin film stability with constant interfacial and bulk properties. Adv Colloid Interface Sci 2023; 312:102845. [PMID: 36709573 DOI: 10.1016/j.cis.2023.102845] [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: 11/28/2022] [Revised: 01/20/2023] [Accepted: 01/20/2023] [Indexed: 01/24/2023]
Abstract
The stability of foams is commonly linked to the interfacial properties of the proteins and other surfactants used. This study aimed to use these relationships to explain differences in foam stability observed among similar beer samples from different breweries. The foam stability was different for each sample (Nibem foam stability ranged from 206 to 300 s), but ranking was similar for all three foaming methods used, thus independent of the method, gas, etc. Differences in foam stability were dominated by differences in coalescence, as illustrated by the correlation with the stability of single bubbles and thin liquid films. The differences in coalescence stability could not be explained by the measured interfacial properties (e.g. surface pressure, adsorption rate, dilatational modulus and surface shear viscosity), or the bulk properties (concentration, pH, ionic strength, viscosity), since they were similar for all samples. The drainage rates and disjoining pressure isotherms measured in thin liquid films were also similar for all samples, further limiting the options to explain the differences in foam stability using known arguments. The differences in coalescence stability of the thin films was shown to depend on the liquid in between the adsorbed layers of the thin film, using a modified capillary cell to exchange this liquid (to a buffer, or one of the other samples). This illustrates the need to review our current understanding and to develop new methods both for experimental study and theoretical description, to better understand foam stability in the future.
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Affiliation(s)
- Peter Alexander Wierenga
- Laboratory of Food Chemistry, Wageningen UR, Bornse Weilanden 9, Wageningen 6708, WG, the Netherlands.
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12
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Yang C, Su Z, Li Z, Yao R, Liu W, Yin H. Harvest of nisin from fermentation broth using foam separation with the assistance of ultrasonic treatment: foam property evaluation and antimicrobial activity retention. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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13
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Andlinger DJ, Schrempel U, Hengst C, Kulozik U. Heat-induced aggregation kinetics of potato protein – Investigated by chromatography, calorimetry, and light scattering. Food Chem 2022; 389:133114. [DOI: 10.1016/j.foodchem.2022.133114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 04/07/2022] [Accepted: 04/26/2022] [Indexed: 11/28/2022]
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14
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Lomolino G, Vincenzi S, Zannoni S, Marangon M, De Iseppi A, Curioni A. Emulsifying activity of potato proteins in the presence of k-carrageenan at different pH conditions. Food Chem X 2022; 13:100232. [PMID: 35498974 PMCID: PMC9039935 DOI: 10.1016/j.fochx.2022.100232] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 01/19/2022] [Accepted: 01/24/2022] [Indexed: 11/16/2022] Open
Abstract
The emulsifying activity of potato proteins was tested in different conditions. Potato proteins presented a higher emulsifying activity at pH 4.8. Electrostatic attraction occurs between Potato proteins and k-carrageenan at pH 3. k-carrageenan strengthens the structure of Potato proteins - stabilised emulsions.
Oil in Water (3:1) emulsions were prepared using potato proteins in the presence or absence of 0.2% k-carrageenan at different pH conditions (3.0, 7.0, and 4.8). These emulsions showed different droplet sizes, stability, appearance, and rheological properties. The best emulsion stability was achieved combining potato proteins and k-carrageenan at pH 3.0, where uniform and small oil droplets (30 µm) were observed. The rheological properties of the emulsions were also different. The highest viscosity and G’ were shown by the emulsion prepared with the addition of k-carrageenan at pH 3.0, this being attributed to the onset of a gel-like viscoelastic structure in these conditions. SDS-PAGE indicated that the superior properties of the emulsion prepared with k-carrageenan at pH 3.0 can be attributed to an electrostatic interaction between the positively charged potato proteins and the anionic polysaccharide. This interaction allowed the formation of a strong molecular network able to stabilize the system.
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Affiliation(s)
- Giovanna Lomolino
- Department of Agronomy, Food, Natural Resources, Animals, and Environment (DAFNAE), University of Padua, Viale dell'Università, 16, 35020, Legnaro, Padova, Italy
| | - Simone Vincenzi
- Department of Agronomy, Food, Natural Resources, Animals, and Environment (DAFNAE), University of Padua, Viale dell'Università, 16, 35020, Legnaro, Padova, Italy
| | - Stefania Zannoni
- Department of Agronomy, Food, Natural Resources, Animals, and Environment (DAFNAE), University of Padua, Viale dell'Università, 16, 35020, Legnaro, Padova, Italy
| | - Matteo Marangon
- Department of Agronomy, Food, Natural Resources, Animals, and Environment (DAFNAE), University of Padua, Viale dell'Università, 16, 35020, Legnaro, Padova, Italy
| | - Alberto De Iseppi
- Department of Agronomy, Food, Natural Resources, Animals, and Environment (DAFNAE), University of Padua, Viale dell'Università, 16, 35020, Legnaro, Padova, Italy
| | - Andrea Curioni
- Department of Agronomy, Food, Natural Resources, Animals, and Environment (DAFNAE), University of Padua, Viale dell'Università, 16, 35020, Legnaro, Padova, Italy
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15
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Dai Y, Zhao J, Liang H, Deng Q, Wan C, Li B, Zhou B. Desalination of salted duck egg white assisted by gelatin: Foaming and interface properties of the mixed system. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2021.107260] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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16
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Zhang T, Zhang M, Gong P, Jiang H, Liu J, Liu X. Ions-induced ovalbumin foaming properties enhancement: Structural, rheological, and molecular aggregation mechanism. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2021.107221] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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17
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Wei F, Lu M, Li J, Xiao J, Rogers MA, Cao Y, Lan Y. Construction of foam-templated oleogels based on rice bran protein. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2021.107245] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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18
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Tang T, Liu J, Tang S, Xiao N, Jiang Y, Tu Y, Xu M. Effects of soy peptides and pH on foaming and physicochemical properties of egg white powder. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2021.112503] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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19
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On the foaming properties of plant proteins: Current status and future opportunities. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.10.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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20
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Li J, Yang X, Swallah MS, Fu H, Ji L, Meng X, Yu H, Lyu B. Soy protein isolate: an overview on foaming properties and air–liquid interface. Int J Food Sci Technol 2021. [DOI: 10.1111/ijfs.15390] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Jiaxin Li
- College of Food Science and Engineering Jilin Agricultural University Changchun 130118 China
- Soybean Research & Development Centre Division of Soybean Processing Chinese Agricultural Research System Changchun 130118 China
| | - Xiaoqing Yang
- College of Food Science and Engineering Jilin Agricultural University Changchun 130118 China
- Soybean Research & Development Centre Division of Soybean Processing Chinese Agricultural Research System Changchun 130118 China
| | - Mohammed Sharif Swallah
- College of Food Science and Engineering Jilin Agricultural University Changchun 130118 China
| | - Hongling Fu
- College of Food Science and Engineering Jilin Agricultural University Changchun 130118 China
- Soybean Research & Development Centre Division of Soybean Processing Chinese Agricultural Research System Changchun 130118 China
| | - Lei Ji
- College of Food Science and Engineering Jilin Agricultural University Changchun 130118 China
- Soybean Research & Development Centre Division of Soybean Processing Chinese Agricultural Research System Changchun 130118 China
| | - Xiangze Meng
- College of Food Science and Engineering Jilin Agricultural University Changchun 130118 China
- Soybean Research & Development Centre Division of Soybean Processing Chinese Agricultural Research System Changchun 130118 China
| | - Hansong Yu
- College of Food Science and Engineering Jilin Agricultural University Changchun 130118 China
- Soybean Research & Development Centre Division of Soybean Processing Chinese Agricultural Research System Changchun 130118 China
| | - Bo Lyu
- Soybean Research & Development Centre Division of Soybean Processing Chinese Agricultural Research System Changchun 130118 China
- College of Food Science Northeast Agricultural University Harbin 150030 China
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21
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Andlinger DJ, Röscheisen P, Hengst C, Kulozik U. Influence of pH, Temperature and Protease Inhibitors on Kinetics and Mechanism of Thermally Induced Aggregation of Potato Proteins. Foods 2021; 10:foods10040796. [PMID: 33917748 PMCID: PMC8068184 DOI: 10.3390/foods10040796] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 03/29/2021] [Accepted: 04/06/2021] [Indexed: 01/07/2023] Open
Abstract
Understanding aggregation in food protein systems is essential to control processes ranging from the stabilization of colloidal dispersions to the formation of macroscopic gels. Patatin rich potato protein isolates (PPI) have promising techno-functionality as alternatives to established proteins from egg white or milk. In this work, the influence of pH and temperature on the kinetics of PPI denaturation and aggregation was investigated as an option for targeted functionalization. At a slightly acidic pH, rates of denaturation and aggregation of the globular patatin in PPI were fast. These aggregates were shown to possess a low amount of disulfide bonds and a high amount of exposed hydrophobic amino acids (S0). Gradually increasing the pH slowed down the rate of denaturation and aggregation and alkaline pH levels led to an increased formation of disulfide bonds within these aggregates, whereas S0 was reduced. Aggregation below denaturation temperature (Td) favored aggregation driven by disulfide bridge formation. Aggregation above Td led to fast unfolding, and initial aggregation was less determined by disulfide bridge formation. Inter-molecular disulfide formation occurred during extended heating times. Blocking different protein interactions revealed that the formation of disulfide bond linked aggregation is preceded by the formation of non-covalent bonds. Overall, the results help to control the kinetics, morphology, and interactions of potato protein aggregation for potential applications in food systems.
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22
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Effects of protein concentration during ultrasonic processing on physicochemical properties and techno-functionality of plant food proteins. Food Hydrocoll 2021. [DOI: 10.1016/j.foodhyd.2020.106457] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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23
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Li M, Blecker C, Karboune S. Molecular and air-water interfacial properties of potato protein upon modification via laccase-catalyzed cross-linking and conjugation with sugar beet pectin. Food Hydrocoll 2021. [DOI: 10.1016/j.foodhyd.2020.106236] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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24
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Qin YS, Jiang H, Wang CF, Cheng M, Wang LL, Huang MY, Zhao QX, Jiang HH. Physicochemical and functional properties of goat milk whey protein and casein obtained during different lactation stages. J Dairy Sci 2021; 104:3936-3946. [PMID: 33551171 DOI: 10.3168/jds.2020-19454] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 10/29/2020] [Indexed: 11/19/2022]
Abstract
During lactation, goat milk contains colostrum, transitional milk, mature milk, and end milk. The protein present in goat milk during different lactation periods has different characteristics. This study aimed to characterize the protein profile of goat milk samples obtained at different lactation stages and to identify changes in the physicochemical and functional properties of whey protein and casein from goat milk collected at 1, 3, 15, 100, and 200 d after calving. The results demonstrated that the lactation period had a great influence on the physicochemical and functional properties of goat milk whey protein and casein, especially the protein properties of colostrum on the first day after delivery. The denaturation temperature, hydrophobicity, and turbidity of whey protein were significantly higher on the first day postpartum than at other lactation periods. Correspondingly, the colostrum whey protein also had better functional properties, such as emulsification, oil holding capacity, and foaming properties on the first day postpartum than at other lactation periods. For casein, the turbidity, particle size, water holding capacity, and foaming properties on the first day after delivery were significantly higher than those at other lactation periods, whereas the denaturation temperature, oil holding capacity, and emulsification followed the opposite trend. For both whey protein and casein, the 2 indicators of emulsifying properties, namely, emulsifying activity index and the emulsion stability, also followed an opposite trend relative to lactation stage, whereas the changes in foaming capacity with the lactation period were completely consistent with the change of foaming stability. These findings could provide useful information for the use of goat milk whey protein and casein obtained during different lactation stages in the dairy industry.
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Affiliation(s)
- Y S Qin
- College of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China 250353
| | - H Jiang
- College of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China 250353
| | - C F Wang
- College of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China 250353.
| | - M Cheng
- Qingdao Research Institute of Husbandry and Veterinary, Qingdao, China 266100
| | - L L Wang
- College of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China 250353
| | - M Y Huang
- College of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China 250353
| | - Q X Zhao
- College of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China 250353
| | - H H Jiang
- College of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China 250353
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