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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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Zhao X, Wang K, Dou N, Zhao H, Hou D, Wei X, Jiang Z, Hou J. Oil body extraction from high-fat and high-protein soybeans by laccase cross-linked beet pectin: physicochemical and oxidation properties. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2023; 103:3550-3557. [PMID: 36789528 DOI: 10.1002/jsfa.12502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 02/09/2023] [Accepted: 02/15/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND Soybean oil bodies (SOB) are droplets of natural emulsified oil. Soybean oil emulsifies well but it is easily oxidized during storage. Beet pectin is a complex anionic polysaccharide, which can be adsorbed on the surface of liposomes to improve their resistance to flocculation. Laccase can covalently cross-link ferulic acid in beet pectin, and its structure is irreversible, which can improve the stability of polysaccharides. RESULTS At pH 2.5, laccase cross-linked beet pectin high-oil soybean oil body (HOSOB) and high-protein soybean oil body (HPSOB) emulsions showed obvious aggregation and severe stratification, and the oxidation of the emulsions was also high. The flocculation of emulsions decreased with an increase in the pH. The effect of pH on the flocculation of emulsion was confirmed by confocal laser electron microscopy. The ζ potential, emulsification, and rheological shear force increased with increasing pH whereas the particle size and surface hydrophobicity decreased with increasing pH. CONCLUSION This experiment indicates that the physicochemical stability of the two composite emulsions was strongly affected under acidic conditions but stable under neutral and weakly alkaline conditions. Under the same acid-base conditions, the degree of oxidation of HPSOB composite emulsion changes substantially. The results of this study can provide a basis for the design of very stable emulsions to meet the demand for natural products. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Xu Zhao
- Key Laboratory of Dairy Science, Northeast Agricultural University, College of Food Science, Harbin, China
| | - Kaili Wang
- Key Laboratory of Dairy Science, Northeast Agricultural University, College of Food Science, Harbin, China
| | - Nianxu Dou
- Key Laboratory of Dairy Science, Northeast Agricultural University, College of Food Science, Harbin, China
| | - Huanyu Zhao
- Key Laboratory of Dairy Science, Northeast Agricultural University, College of Food Science, Harbin, China
| | - Dongdong Hou
- Key Laboratory of Dairy Science, Northeast Agricultural University, College of Food Science, Harbin, China
| | - Xuan Wei
- Key Laboratory of Dairy Science, Northeast Agricultural University, College of Food Science, Harbin, China
| | - Zhanmei Jiang
- Key Laboratory of Dairy Science, Northeast Agricultural University, College of Food Science, Harbin, China
| | - Juncai Hou
- Key Laboratory of Dairy Science, Northeast Agricultural University, College of Food Science, Harbin, China
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Aya Rodriguez MD, Vidotto DC, Xavier AAO, Mantovani RA, Tavares GM. Does the protein structure of β-lactoglobulin impact its complex coacervation with type a gelatin and the ability of the complexes to entrap lutein? Food Hydrocoll 2023. [DOI: 10.1016/j.foodhyd.2023.108651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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de Souza AB, Xavier AAO, Stephani R, Tavares GM. Sedimentation in UHT high-protein dairy beverages: influence of sequential preheating coupled with homogenisation or supplementation with carbohydrates. Int Dairy J 2022. [DOI: 10.1016/j.idairyj.2022.105505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Vidotto DC, Mantovani RA, Tavares GM. High-pressure microfluidization of whey proteins: Impact on protein structure and ability to bind and protect lutein. Food Chem 2022; 382:132298. [PMID: 35144190 DOI: 10.1016/j.foodchem.2022.132298] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 01/13/2022] [Accepted: 01/28/2022] [Indexed: 11/30/2022]
Abstract
Dynamic high-pressure homogenization microfluidization (DHPM) is a versatile emerging technology that may be applied to food processing to achieve several goals. DHPM may, depending on nature of the molecules and the working parameters, induce changes in protein structure, which may improve or impair their techno-functional properties and ability to bind other molecules. In this context, DHPM (12 passes, 120 MPa), coupled or not to a cooling device, was applied to β-lactoglobulin (β-lg) and whey protein isolate (WPI) dispersions. Minor changes in the structure of whey proteins were induced by DHPM with sample cooling; although, when sample cooling was not applied, aggregation and increases of around 30% of protein surface hydrophobicity were noticeable for the WPI dispersion. The association constant between the proteins and lutein was in the magnitude of 104 M-1, and lutein photodegradation constant diminished about 3 times in the presence of proteins, compared to in their absence.
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Affiliation(s)
- Danilo C Vidotto
- Department of Food Science and Nutrition, School of Food Engineering, University of Campinas (UNICAMP), Campinas, Brazil
| | - Raphaela A Mantovani
- Department of Food Science and Nutrition, School of Food Engineering, University of Campinas (UNICAMP), Campinas, Brazil
| | - Guilherme M Tavares
- Department of Food Science and Nutrition, School of Food Engineering, University of Campinas (UNICAMP), Campinas, Brazil.
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Alves AC, Martha L, Casanova F, Tavares GM. Structural and foaming properties of whey and soy protein isolates in mixed systems before and after heat treatment. FOOD SCI TECHNOL INT 2021; 28:545-553. [PMID: 34233546 DOI: 10.1177/10820132211031756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The partial replacement of proteins from animal sources by plant proteins in formulated food products has been proposed as useful to improve sustainability aspects of the products without dramatically changing their techno-functional properties. Although several research groups have published on the gelling properties of mixed systems containing whey and soy protein isolates (WPI and SPI), their foaming properties are much less described. In this context, the main objective of this paper was to evaluate the structural and foaming properties of samples containing different mass ratios of WPI:SPI (100:0, 75:25, 50:50, 25:75 and 0:100) before and after heat treatment. The samples were evaluated according to their solubility, foaming capacity (FC), foam microstructure and foam stability (FS). Before heat treatment, mixing SPI to WPI did not affect the solubility of whey proteins, but, after heat treatment, insoluble co-aggregates were formed. Similar FC was measured for all samples despite their WPI:SPI ratio and the applied heat treatment. The partial replacement of WPI by SPI changed the microstructure of the foams and had an antagonistic effect on the FS of the samples, due to the negative effect of insoluble soy protein aggregates and/or insoluble co-aggregates on the reinforcement of the air-water interfacial film.
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Affiliation(s)
- Alane Cangani Alves
- Department of Food Science and Nutrition, School of Food Engineering, University of Campinas, Campinas, Brazil
| | - Lara Martha
- Department of Food Science and Nutrition, School of Food Engineering, University of Campinas, Campinas, Brazil
| | - Federico Casanova
- Research Group for Food Production Engineering, 5205Technical University of Denmark, National Food Institute, Technical University of Denmark, Kongens Lyngby, Denmark
| | - Guilherme M Tavares
- Department of Food Science and Nutrition, School of Food Engineering, University of Campinas, Campinas, Brazil
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