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Chiaregato CG, Bernardinelli OD, Shavandi A, Sabadini E, Petri DFS. The effect of the molecular structure of hydroxypropyl methylcellulose on the states of water, wettability, and swelling properties of cryogels prepared with and without CaO 2. Carbohydr Polym 2023; 316:121029. [PMID: 37321726 DOI: 10.1016/j.carbpol.2023.121029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 05/08/2023] [Accepted: 05/13/2023] [Indexed: 06/17/2023]
Abstract
Hydroxypropyl methylcellulose (HPMC) belongs to the cellulose ether family that has hydroxyl groups substituted by hydrophobic methyl groups (DS) and hydrophilic hydroxypropyl groups (MS). Herein, the interactions between water molecules and cryogels prepared with HPMC in the presence and absence of a linear nonionic surfactant, as well as CaO2 microparticles, which react with water producing O2, were systematically investigated by sorption experiments and Time-Domain Nuclear Magnetic Resonance. Regardless of the DS and MS, most water molecules presented transverse relaxation time t2 typical of intermediate water and a small population of more tightly bound water. HPMC cryogels with the highest DS of 1.9 presented the slowest swelling rate of 0.519 ± 0.053 gwater/(g.s) and the highest contact angle values 85.250o ± 0.004o, providing the best conditions for a slow reaction between CaO2 and water. The presence of surfactant favored hydrophobic interactions that allowed the polar head of the surfactant to be exposed to the medium, resulting in a higher swelling rate and lower contact angle values. The HPMC with the highest MS presented the fastest swelling rate and the lowest contact angle. These findings are relevant for the formulations and reactions, where tuning the swelling kinetics is crucial for the final application.
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Affiliation(s)
- Camila Gruber Chiaregato
- Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo, 05508-000 São Paulo, Brazil
| | | | - Amin Shavandi
- BioMatter Unit, École Polytechnique de Bruxelles, Université Libre de Bruxelles (ULB), 1050 Brussels, Belgium
| | - Edvaldo Sabadini
- Department of Physical Chemistry, Institute of Chemistry, State University of Campinas, 6154, 13083-970 Campinas, Brazil
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dos Santos M, da Rocha DAVF, Bernardinelli OD, Oliveira Júnior FD, de Sousa DG, Sabadini E, da Cunha RL, Trindade MA, Pollonio MAR. Understanding the Performance of Plant Protein Concentrates as Partial Meat Substitutes in Hybrid Meat Emulsions. Foods 2022; 11:foods11213311. [PMID: 36359925 PMCID: PMC9657839 DOI: 10.3390/foods11213311] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 10/18/2022] [Accepted: 10/20/2022] [Indexed: 11/25/2022] Open
Abstract
Hybrid meat products are an excellent strategy to incorporate plant proteins into traditional meat formulations considering recent market trends focusing on the partial reduction in red meat content. In this work, we evaluated the effects of different concentrated plant proteins (soy, pea, fava bean, rice, and sunflower) in partially replacing meat in meat emulsion model systems. Soy, pea, and sunflower proteins showed great compatibility with the meat matrix, giving excellent emulsion stability and a cohesive protein network with good fat distribution. Otherwise, adding rice and fava bean proteins resulted in poor emulsion stability. Color parameters were affected by the intrinsic color of plant proteins and due to the reduction in myoglobin content. Both viscoelastic moduli, G′ and G″ decreased with the incorporation of plant proteins, especially for rice and fava bean. The temperature sweep showed that myosin denaturation was the dominant effect on the G′ increase. The water mobility was affected by plant proteins and the proportion between immobilized and intermyofibrillar water was quite different among treatments, especially those with fava bean and rice proteins. In vitro protein digestibility was lower for hybrid meat emulsion elaborated with rice protein. It is concluded that soy, pea, and mainly sunflower proteins have suitable compatibility with the meat matrix in emulsified products.
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Affiliation(s)
- Mirian dos Santos
- Faculdade de Engenharia de Alimentos, Universidade Estadual de Campinas (Unicamp), Cidade Universitária Zeferino Vaz, Campinas, 13083-862, SP, Brazil
| | | | | | - Fernando Divino Oliveira Júnior
- Faculdade de Engenharia de Alimentos, Universidade Estadual de Campinas (Unicamp), Cidade Universitária Zeferino Vaz, Campinas, 13083-862, SP, Brazil
| | - Diógenes Gomes de Sousa
- Faculdade de Engenharia de Alimentos, Universidade Estadual de Campinas (Unicamp), Cidade Universitária Zeferino Vaz, Campinas, 13083-862, SP, Brazil
| | - Edvaldo Sabadini
- Instituto de Química, Universidade Estadual de Campinas (Unicamp), Cidade Universitária Zeferino Vaz, Campinas 13083-862, SP, Brazil
| | - Rosiane Lopes da Cunha
- Faculdade de Engenharia de Alimentos, Universidade Estadual de Campinas (Unicamp), Cidade Universitária Zeferino Vaz, Campinas, 13083-862, SP, Brazil
| | - Marco Antonio Trindade
- Faculdade de Zootecnia e Engenharia de Alimentos, Universidade de São Paulo, Avenida Duque de Caxias Norte 225, Jardim Elite, Pirassununga 13635-900, SP, Brazil
| | - Marise Aparecida Rodrigues Pollonio
- Faculdade de Engenharia de Alimentos, Universidade Estadual de Campinas (Unicamp), Cidade Universitária Zeferino Vaz, Campinas, 13083-862, SP, Brazil
- Correspondence: ; Tel.: +55-19-35214002
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Ferreira Ignácio Câmara AK, Midori Ozaki M, Santos M, Silva Vidal VA, Oliveira Ribeiro W, de Souza Paglarini C, Bernardinelli OD, Sabadini E, Rodrigues Pollonio MA. Olive oil-based emulsion gels containing chia (Salvia hispanica L.) mucilage delivering healthy claims to low-saturated fat Bologna sausages. Food Structure 2021. [DOI: 10.1016/j.foostr.2021.100187] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Paglarini CDS, Vidal VAS, Ozaki MM, Ribeiro APB, Bernardinelli OD, Câmara AKFI, Herrero AM, Ruiz-Capillas C, Sabadini E, Pollonio MAR. Inulin gelled emulsion as a fat replacer and fiber carrier in healthier Bologna sausage. FOOD SCI TECHNOL INT 2021; 28:3-14. [PMID: 33455448 DOI: 10.1177/1082013220980586] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The effects of gelled emulsions (GE) used as animal fat replacers in terms of the nutritional, technological, and sensory properties of Bologna sausages during 60 days of chilled storage have been studied. Samples with GE added exhibited a fat reduction of 31%. Sausages with GE had higher values of L* and lower values of a* compared to the control. Harder sausages were obtained by the addition of GE. Higher lipid oxidation rates were found with increasing amounts of GE in the reformulated products. In addition, the relaxation time was not affected by the reformulation. All samples were deemed acceptable by consumer tests. However, CATA (Check-all-that-apply) tests showed that Bolognas formulated with partial or total pork fat replaced with GE were described as rubbery, not very spicy and firm, appeared to be dry and opaque, and had an aftertaste. Chilled storage significantly affected the Thiobarbituric Acid Reactive Substances (TBARS) values and slightly affected the pH values, texture, color, and NMR data. An important result is that the panelists did not detect the oxidation results in relation to the TBARS values, and the addition of a GE with inulin as dietary fiber may be a good strategy to make Bologna sausage healthier.
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Affiliation(s)
| | - Vitor Andre Silva Vidal
- Department of Food Technology, School of Food Engineering, University of Campinas, Campinas, Brazil
| | - Maristela Midori Ozaki
- Department of Food Technology, School of Food Engineering, University of Campinas, Campinas, Brazil
| | - Ana Paula Badan Ribeiro
- Department of Food Technology, School of Food Engineering, University of Campinas, Campinas, Brazil
| | | | | | - Ana M Herrero
- Institute of Food Science, Technology and Nutrition (ICTAN-CSIC), José Antonio Novais, Madrid, Spain
| | - Claudia Ruiz-Capillas
- Institute of Food Science, Technology and Nutrition (ICTAN-CSIC), José Antonio Novais, Madrid, Spain
| | - Edvaldo Sabadini
- Institute of Chemistry, University of Campinas, Campinas, Brazil
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Mariano M, Bernardinelli OD, Pires-Oliveira R, Ferreira GA, Loh W. Inclusion Complexation between α-Cyclodextrin and Oligo(ethylene glycol) Methyl Ether Methacrylate. ACS Omega 2020; 5:9517-9528. [PMID: 32363304 PMCID: PMC7191851 DOI: 10.1021/acsomega.0c00741] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Accepted: 04/01/2020] [Indexed: 05/05/2023]
Abstract
The preparation of inclusion complexes based on α-cyclodextrin (α-CD) and oligo(ethylene glycol) methyl ether methacrylate (OEGMA) was investigated aiming to reveal complexation particularities and thermodynamic and kinetic aspects as a function of the oligomer architecture. Small-angle X-ray scattering and isothermal titration calorimetry measurements revealed that oligomer molecular weight controls both the kinetics and thermodynamics of inclusion. Unlike linear ethylene glycol polymers, OEGMA groups possess a methacrylate group, which seems to act as a stopper, affecting their mode of complexation. Nuclear magnetic resonance spectra and relaxation measurements support the fact that methacrylate groups lie outside the α-CD ring and that a full sequential complexation of the oligomer ethylene oxide groups is not observed. These results allied to the temperature sensitivity of these oligomers and enable possible routes for chemical modifications and design of new stimuli-responsive materials.
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Câmara AKFI, Vidal VAS, Santos M, Bernardinelli OD, Sabadini E, Pollonio MAR. Reducing phosphate in emulsified meat products by adding chia (Salvia hispanica L.) mucilage in powder or gel format: A clean label technological strategy. Meat Sci 2020; 163:108085. [PMID: 32088609 DOI: 10.1016/j.meatsci.2020.108085] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 02/05/2020] [Accepted: 02/10/2020] [Indexed: 11/18/2022]
Abstract
This study evaluated the functional properties of chia mucilage powder (MCP) and gel (MCG) as a phosphate replacers in low-fat Bologna sausages. Four treatments were produced without phosphates (F1-2% MCP; F2-2% MCG; F3-4% MCP; F4-4% MCG) and two with 0.25% phosphate (F5-2% MCG and F6-4% MCG) besides control (20%-fat-0.5% phosphate). Samples containing mucilage were less firm and less chewy on day 0, except F3. Treatments containing 2% MCG were judged acceptable and provided better emulsion stability than those with MCP. Adding 4% MCP or MCG resulted in Bolognas with lower relaxation times and more restricted mobility and lowest sensorial acceptance characterized by the terms light brown and dark pink color (F4). The microscopy images exhibited less cohesive structure in treatments with 4% of MCG, suggesting the formation of a weaker bound protein network. Chia mucilage gel at 2%, due to its functional properties, has proven to be a feasible strategy to substitute 50% phosphate in low-fat Bologna sausages.
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Affiliation(s)
- Ana Karoline Ferreira Ignácio Câmara
- Department of Food Technology, Faculty of Food Engineering, University of Campinas (UNICAMP), Universitária Zeferino Vaz City, 13083-862 Campinas, São Paulo, Brazil
| | - Vitor André Silva Vidal
- Department of Food Technology, Faculty of Food Engineering, University of Campinas (UNICAMP), Universitária Zeferino Vaz City, 13083-862 Campinas, São Paulo, Brazil
| | - Mirian Santos
- Department of Food Technology, Faculty of Food Engineering, University of Campinas (UNICAMP), Universitária Zeferino Vaz City, 13083-862 Campinas, São Paulo, Brazil
| | - Oigres Daniel Bernardinelli
- Department of Physicochemistry, Institute of Chemistry, University of Campinas (UNICAMP), Universitária Zeferino Vaz City, 13083-970 Campinas, São Paulo, Brazil
| | - Edvaldo Sabadini
- Department of Physicochemistry, Institute of Chemistry, University of Campinas (UNICAMP), Universitária Zeferino Vaz City, 13083-970 Campinas, São Paulo, Brazil
| | - Marise Aparecida Rodrigues Pollonio
- Department of Food Technology, Faculty of Food Engineering, University of Campinas (UNICAMP), Universitária Zeferino Vaz City, 13083-862 Campinas, São Paulo, Brazil.
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Vidal VA, Bernardinelli OD, Paglarini CS, Sabadini E, Pollonio MA. Understanding the effect of different chloride salts on the water behavior in the salted meat matrix along 180 days of shelf life. Food Res Int 2019; 125:108634. [DOI: 10.1016/j.foodres.2019.108634] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 08/21/2019] [Accepted: 08/21/2019] [Indexed: 11/16/2022]
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Brinatti C, Akhlaghi SP, Pires-Oliveira R, Bernardinelli OD, Berry RM, Tam KC, Loh W. Controlled coagulation and redispersion of thermoresponsive poly di(ethylene oxide) methyl ether methacrylate grafted cellulose nanocrystals. J Colloid Interface Sci 2019; 538:51-61. [DOI: 10.1016/j.jcis.2018.11.071] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 11/15/2018] [Accepted: 11/16/2018] [Indexed: 12/01/2022]
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Diuk Andrade F, Newson WR, Bernardinelli OD, Rasheed F, Cobo MF, Plivelic TS, Ribeiro deAzevedo E, Kuktaite R. An insight into molecular motions and phase composition of gliadin/glutenin glycerol blends studied by 13
C solid-state and 1
H time-domain NMR. ACTA ACUST UNITED AC 2018. [DOI: 10.1002/polb.24586] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Fabiana Diuk Andrade
- Instituto de Física de São Carlos; Universidade de São Paulo, CP 369; São Carlos SP 13660-970 Brazil
| | - William R. Newson
- Department of Plant Breeding; The Swedish University of Agricultural Sciences, P. O. Box 101; Alnarp SE-230 53 Sweden
| | | | - Faiza Rasheed
- Department of Plant Breeding; The Swedish University of Agricultural Sciences, P. O. Box 101; Alnarp SE-230 53 Sweden
| | - Márcio Fernando Cobo
- Instituto de Física de São Carlos; Universidade de São Paulo, CP 369; São Carlos SP 13660-970 Brazil
| | - Tomás S. Plivelic
- MAX IV Laboratory; Lund University, Fotongatan 2; Lund SE-225 92 Sweden
| | - Eduardo Ribeiro deAzevedo
- Instituto de Física de São Carlos; Universidade de São Paulo, CP 369; São Carlos SP 13660-970 Brazil
| | - Ramune Kuktaite
- Department of Plant Breeding; The Swedish University of Agricultural Sciences, P. O. Box 101; Alnarp SE-230 53 Sweden
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Bernardinelli OD, Lima MA, Rezende CA, Polikarpov I, deAzevedo ER. Quantitative (13)C MultiCP solid-state NMR as a tool for evaluation of cellulose crystallinity index measured directly inside sugarcane biomass. Biotechnol Biofuels 2015; 8:110. [PMID: 26244055 PMCID: PMC4524013 DOI: 10.1186/s13068-015-0292-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2015] [Accepted: 07/22/2015] [Indexed: 05/03/2023]
Abstract
BACKGROUND The crystallinity index (CI) is often associated with changes in cellulose structure after biological and physicochemical pretreatments. While some results obtained with lignocellulosic biomass demonstrate a progressive increase in the CI as a function of pretreatments, it is also shown that the CI can significantly vary depending on the choice of the measurement method. Besides, the influence of the CI on the recalcitrance of biomass has been controversial for a long time, but the most recent results tend to point out that the efficiency of pretreatments in reducing the recalcitrance is not clearly correlated with the decrease of the CI. Much of this controversy is somewhat associated with the inability to distinguish between the CI of the cellulose inside the biomass and the CI of the full biomass, which contains other amorphous components such as lignin and hemicellulose. RESULTS Cross polarization by multiple contact periods (Multi-CP) method was used to obtain quantitative (13)C solid-state nuclear magnetic resonance (ssNMR) spectra of sugarcane bagasse biomass submitted to two-step pretreatments and/or enzymatic hydrolysis. By comparing the dipolar filtered Multi-CP (13)C NMR spectra of untreated bagasse samples with those of samples submitted to acid pretreatment, we show that a 1% H2SO4-assisted pretreatment was very effective in removing practically all the hemicellulose signals. This led us to propose a spectral editing procedure based on the subtraction of MultiCP spectra of acid-treated biomass from that of the extracted lignin, to obtain a virtually pure cellulose spectrum. Based on this idea, we were able to evaluate the CI of the native cellulose inside the sugarcane bagasse biomass. CONCLUSIONS The results show the validity of the proposed method as a tool for evaluating the variations in the CI of the cellulose inside biomasses of similar kinds. Despite a clear increase in the CI of biomass as measured by X-ray diffraction, no significant variations were observed in the CI of the cellulose inside the biomass after a particular 1% H2SO4/0.25-4% NaOH chemical-assisted pretreatments. The CI of cellulose inside the biomass solid fraction that remained after the enzymatic hydrolysis was also evaluated. The results show a slight increase in crystallinity.
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Affiliation(s)
- Oigres Daniel Bernardinelli
- />Instituto de Física de São Carlos, Universidade de São Paulo, Caixa Postal 369, São Carlos, SP 13660-970 Brazil
| | - Marisa Aparecida Lima
- />Instituto de Física de São Carlos, Universidade de São Paulo, Caixa Postal 369, São Carlos, SP 13660-970 Brazil
| | - Camila Alves Rezende
- />Instituto de Física de São Carlos, Universidade de São Paulo, Caixa Postal 369, São Carlos, SP 13660-970 Brazil
- />Instituto de Química, Universidade de Campinas-UNICAMP, Caixa Postal 6154, Campinas, SP 13084-971 Brazil
| | - Igor Polikarpov
- />Instituto de Física de São Carlos, Universidade de São Paulo, Caixa Postal 369, São Carlos, SP 13660-970 Brazil
| | - Eduardo Ribeiro deAzevedo
- />Instituto de Física de São Carlos, Universidade de São Paulo, Caixa Postal 369, São Carlos, SP 13660-970 Brazil
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Bernardinelli OD, Faria GC, de Oliveira Nunes LA, Faria RM, deAzevedo ER, Pinto MFS. Correlation between molecular conformation, packing, and dynamics in oligofluorenes: a theoretical/experimental study. J Phys Chem A 2012; 116:4285-95. [PMID: 22471613 DOI: 10.1021/jp210953m] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Fluorene-based systems have shown great potential as components in organic electronics and optoelectronics (organic photovoltaics, OPVs, organic light emitting diodes, OLEDs, and organic transistors, OTFTs). These systems have drawn attention primarily because they exhibit strong blue emission associated with relatively good thermal stability. It is well-known that the electronic properties of polymers are directly related to the molecular conformations and chain packing of polymers. Here, we used three oligofluorenes (trimer, pentamer, and heptamer) as model systems to theoretically investigate the conformational properties of fluorene molecules, starting with the identification of preferred conformations. The hybrid exchange-correlation functional, OPBE, and ZINDO/S-CI showed that each oligomer exhibits a tendency to adopt a specific chain arrangement, which could be distinguished by comparing their UV/vis electronic absorption and (13)C NMR spectra. This feature was used to identify the preferred conformation of the oligomer chains in chloroform-cast films by comparing experimental and theoretical UV/vis and (13)C NMR spectra. Moreover, the oligomer chain packing and dynamics in the films were studied by DSC and several solid-state NMR techniques, which indicated that the phase behavior of the films may be influenced by the tendency that each oligomeric chain has to adopt a given conformation.
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