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Brandão E, Jesus M, Guerreiro C, Maricato É, Coimbra MA, Mateus N, de Freitas V, Soares S. Development of a cell-based quaternary system to unveil the effect of pectic polysaccharides on oral astringency. Carbohydr Polym 2024; 323:121378. [PMID: 37940274 DOI: 10.1016/j.carbpol.2023.121378] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 09/08/2023] [Accepted: 09/09/2023] [Indexed: 11/10/2023]
Abstract
Phenolic compounds are responsible for food unpleasant taste properties, including astringency, due to their ability to interact with salivary proteins and oral constituents. Astringency is a crucial attribute for consumer's acceptability. To fulfill the demand for both healthy and tasty food, polysaccharides raise as a good alternative to modulate astringency. In this work, a cell-based quaternary system was developed to evaluate the ability of polysaccharides to reduce the interaction between two classes of hydrolysable tannins - gallotannins (tannic acid) and ellagitannins (punicalagin) - and oral constituents (cells, salivary proteins and mucosal pellicle). So, pectic polysaccharide fractions isolated from grape skins, imidazole soluble polysaccharides (ISP) and carbonate soluble polysaccharides (CSP), as well as a commercial pectin, were tested. Results showed that the polysaccharide's effect depends on the structural features of the molecules involved. CSP fraction and pectin were the most effective, reducing the interactions between both tannins and the oral constituents, mainly in the complete oral model. The highest uronic acid content and the presence of methyl esterified groups could explain their high reduction ability. For tannic acid, the reduction effect increased along with the galloylation degree, while the interaction of β-punicalagin with the oral constituents was practically inhibited at 3.0 mg.mL-1.
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Affiliation(s)
- Elsa Brandão
- LAQV-REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre 689, Porto, Portugal.
| | - Mónica Jesus
- LAQV-REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre 689, Porto, Portugal.
| | - Carlos Guerreiro
- LAQV-REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre 689, Porto, Portugal.
| | - Élia Maricato
- QOPNA and LAQV-REQUIMTE, Departamento de Química, Universidade de Aveiro, Campus Universitário de Santiago, Aveiro, Portugal.
| | - Manuel A Coimbra
- QOPNA and LAQV-REQUIMTE, Departamento de Química, Universidade de Aveiro, Campus Universitário de Santiago, Aveiro, Portugal.
| | - Nuno Mateus
- LAQV-REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre 689, Porto, Portugal.
| | - Victor de Freitas
- LAQV-REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre 689, Porto, Portugal.
| | - Susana Soares
- LAQV-REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre 689, Porto, Portugal.
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Shu J, Ren X, Cheng H, Wang S, Yue L, Li X, Yin M, Chen X, Zhang T, Hui Z, Bao X, Song W, Yu H, Dang L, Zhang C, Wang J, Zhao Q, Li Z. Beneficial or detrimental: Recruiting more types of benign cases for cancer diagnosis based on salivary glycopatterns. Int J Biol Macromol 2023; 252:126354. [PMID: 37591435 DOI: 10.1016/j.ijbiomac.2023.126354] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 08/11/2023] [Accepted: 08/14/2023] [Indexed: 08/19/2023]
Abstract
With the advantages of convenient, painless and non-invasive collection, saliva holds great promise as a valuable biomarker source for cancer detection, pathological assessment and therapeutic monitoring. Salivary glycopatterns have shown significant potential for cancer screening in recent years. However, the understanding of benign lesions at non-cancerous sites in cancer diagnosis has been overlooked. Clarifying the influence of benign lesions on salivary glycopatterns and cancer screening is crucial for advancing the development of salivary glycopattern-based diagnostics. In this study, 2885 samples were analyzed using lectin microarrays to identify variations in salivary glycopatterns according to the number, location, and type of lesions. By utilizing our previously published data of tumor-associated salivary glycopatterns, the performance of machine learning algorithm for cancer screening was investigated to evaluate the effect of adding benign disease cases to the control group. The results demonstrated that both the location and number of lesions had discernible effects on salivary glycopatterns. And it was also revealed that incorporating a broad range of benign diseases into the controls improved the classifier's performance in distinguishing cancer cases from controls. This finding holds guiding significance for enhancing salivary glycopattern-based cancer screening and facilitates their practical implementation in clinical settings.
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Affiliation(s)
- Jian Shu
- Laboratory for Functional Glycomics, College of Life Sciences, Faculty of Life Science & Medicine, Northwest University, Xi'an, China; School of Medicine, Faculty of Life Science & Medicine, Northwest University, Xi'an, China
| | - Xiameng Ren
- Laboratory for Functional Glycomics, College of Life Sciences, Faculty of Life Science & Medicine, Northwest University, Xi'an, China
| | - Hongwei Cheng
- Laboratory for Functional Glycomics, College of Life Sciences, Faculty of Life Science & Medicine, Northwest University, Xi'an, China
| | - Shiyi Wang
- Laboratory for Functional Glycomics, College of Life Sciences, Faculty of Life Science & Medicine, Northwest University, Xi'an, China
| | - Lixin Yue
- Laboratory for Functional Glycomics, College of Life Sciences, Faculty of Life Science & Medicine, Northwest University, Xi'an, China
| | - Xia Li
- Laboratory for Functional Glycomics, College of Life Sciences, Faculty of Life Science & Medicine, Northwest University, Xi'an, China
| | - Mengqi Yin
- Laboratory for Functional Glycomics, College of Life Sciences, Faculty of Life Science & Medicine, Northwest University, Xi'an, China
| | - Xiangqin Chen
- Laboratory for Functional Glycomics, College of Life Sciences, Faculty of Life Science & Medicine, Northwest University, Xi'an, China
| | - Tiantian Zhang
- Laboratory for Functional Glycomics, College of Life Sciences, Faculty of Life Science & Medicine, Northwest University, Xi'an, China
| | - Ziye Hui
- Laboratory for Functional Glycomics, College of Life Sciences, Faculty of Life Science & Medicine, Northwest University, Xi'an, China
| | - Xiaojuan Bao
- Laboratory for Functional Glycomics, College of Life Sciences, Faculty of Life Science & Medicine, Northwest University, Xi'an, China
| | - Wanghua Song
- Laboratory for Functional Glycomics, College of Life Sciences, Faculty of Life Science & Medicine, Northwest University, Xi'an, China
| | - Hanjie Yu
- Laboratory for Functional Glycomics, College of Life Sciences, Faculty of Life Science & Medicine, Northwest University, Xi'an, China
| | - Liuyi Dang
- Laboratory for Functional Glycomics, College of Life Sciences, Faculty of Life Science & Medicine, Northwest University, Xi'an, China
| | - Chen Zhang
- Laboratory for Functional Glycomics, College of Life Sciences, Faculty of Life Science & Medicine, Northwest University, Xi'an, China
| | - Jun Wang
- University Hospital, Northwest University, Xi'an, China
| | - Qi Zhao
- University Hospital, Northwest University, Xi'an, China
| | - Zheng Li
- Laboratory for Functional Glycomics, College of Life Sciences, Faculty of Life Science & Medicine, Northwest University, Xi'an, China.
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Characterising salivary peptidome across diurnal dynamics and variations induced by sampling procedures. Clin Oral Investig 2023; 27:285-298. [PMID: 36149517 DOI: 10.1007/s00784-022-04722-4] [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: 03/07/2022] [Accepted: 09/06/2022] [Indexed: 01/28/2023]
Abstract
OBJECTIVES This study aimed to characterise diurnal dynamics of salivary peptidome and variations induced by sampling procedures. MATERIALS AND METHODS A supervised short-term longitudinal study was conducted amongst ten healthy participants. Saliva samples were collected by different procedures (stimulated/unstimulated conditions, forepart/midstream segments) on three consecutive days. The peptidome compositions of saliva samples were analysed using matrix-assisted laser desorption/ionisation-time of flight-mass spectrometry (MALDI-TOF MS). RESULTS The salivary peptidome exhibited a stable trend generally, even though some diurnal dynamics happened in aspects of both overall structure and certain single peptides. The results indicated saliva samples collected under unstimulated and stimulated conditions have significantly different structures of peptidome, whilst the peptidome profile of stimulated saliva was more abundant than that of unstimulated saliva. It was also indicated that the midstream segment effect might exist in the segmented process of saliva sampling. CONCLUSIONS In summary, salivary peptidome was able to maintain stability though some dynamic changes might happen within a short-term period. Stimulated and unstimulated saliva samples had significantly different peptidome profiles, whilst the stimulated whole saliva was a larger pool of low molecular weight peptides. CLINICAL RELEVANCE The stability of the salivary peptidome highlights the reliability of salivary peptidome as a source of diagnostic biomarker. We recommend keeping one collection condition (stimulated/unstimulated) consistently within one study on salivary peptidome. Stimulated whole saliva would be preferred if more abundant peptidome profile is needed.
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Karl CM, Vidakovic A, Pjevac P, Hausmann B, Schleining G, Ley JP, Berry D, Hans J, Wendelin M, König J, Somoza V, Lieder B. Individual Sweet Taste Perception Influences Salivary Characteristics After Orosensory Stimulation With Sucrose and Noncaloric Sweeteners. Front Nutr 2022; 9:831726. [PMID: 35694162 PMCID: PMC9174746 DOI: 10.3389/fnut.2022.831726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 03/23/2022] [Indexed: 12/05/2022] Open
Abstract
Emerging evidence points to a major role of salivary flow and viscoelastic properties in taste perception and mouthfeel. It has been proposed that sweet-tasting compounds influence salivary characteristics. However, whether perceived differences in the sensory properties of structurally diverse sweet-tasting compounds contribute to salivary flow and saliva viscoelasticity as part of mouthfeel and overall sweet taste perception remains to be clarified. In this study, we hypothesized that the sensory diversity of sweeteners would differentially change salivary characteristics in response to oral sweet taste stimulation. Therefore, we investigated salivary flow and saliva viscoelasticity from 21 healthy test subjects after orosensory stimulation with sucrose, rebaudioside M (RebM), sucralose, and neohesperidin dihydrochalcone (NHDC) in a crossover design and considered the basal level of selected influencing factors, including the basal oral microbiome. All test compounds enhanced the salivary flow rate by up to 1.51 ± 0.12 g/min for RebM compared to 1.10 ± 0.09 g/min for water within the 1st min after stimulation. The increase in flow rate was moderately correlated with the individually perceived sweet taste (r = 0.3, p < 0.01) but did not differ between the test compounds. The complex viscosity of saliva was not affected by the test compounds, but the analysis of covariance showed that it was associated (p < 0.05) with mucin 5B (Muc5B) concentration. The oral microbiome was of typical composition and diversity but was strongly individual-dependent (permutational analysis of variance (PERMANOVA): R2 = 0.76, p < 0.001) and was not associated with changes in salivary characteristics. In conclusion, this study indicates an impact of individual sweet taste impressions on the flow rate without measurable changes in the complex viscosity of saliva, which may contribute to the overall taste perception and mouthfeel of sweet-tasting compounds.
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Affiliation(s)
- Corinna M. Karl
- Christian Doppler Laboratory for Taste Research, Faculty of Chemistry, University of Vienna, Vienna, Austria
- Department of Physiological Chemistry, Faculty of Chemistry, University of Vienna, Vienna, Austria
| | - Ana Vidakovic
- Christian Doppler Laboratory for Taste Research, Faculty of Chemistry, University of Vienna, Vienna, Austria
| | - Petra Pjevac
- Joint Microbiome Facility of the Medical University of Vienna and the University of Vienna, Vienna, Austria
- Department of Microbiology and Ecosystem Science, Division of Microbial Ecology, Centre for Microbiology and Environmental Systems Science, University of Vienna, Vienna, Austria
| | - Bela Hausmann
- Joint Microbiome Facility of the Medical University of Vienna and the University of Vienna, Vienna, Austria
- Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria
| | - Gerhard Schleining
- Institute of Food Science, University of Natural Resources and Life Sciences, Vienna, Austria
| | | | - David Berry
- Joint Microbiome Facility of the Medical University of Vienna and the University of Vienna, Vienna, Austria
- Department of Microbiology and Ecosystem Science, Division of Microbial Ecology, Centre for Microbiology and Environmental Systems Science, University of Vienna, Vienna, Austria
| | | | | | - Jürgen König
- Department of Nutritional Sciences, Faculty of Life Sciences, University of Vienna, Vienna, Austria
| | - Veronika Somoza
- Department of Physiological Chemistry, Faculty of Chemistry, University of Vienna, Vienna, Austria
- Leibniz Institute for Food Systems Biology at the Technical University of Munich, Freising, Germany
- Chair of Nutritional Systems Biology, School of Life Sciences, Technical University of Munich, Freising, Germany
| | - Barbara Lieder
- Christian Doppler Laboratory for Taste Research, Faculty of Chemistry, University of Vienna, Vienna, Austria
- Department of Physiological Chemistry, Faculty of Chemistry, University of Vienna, Vienna, Austria
- *Correspondence: Barbara Lieder,
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Criado C, Muñoz-González C, Hernández-Ledesma B, Pozo-Bayón MÁ. Temporal changes in salivary composition induced by oral exposure to different wine matrices and the relationship with the behaviour of aroma compounds in the mouth. Food Funct 2022; 13:4600-4611. [PMID: 35355023 DOI: 10.1039/d1fo03887g] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The dynamic changes in saliva flow and composition (pH, total protein capacity (TPC), total polyphenol index (TPI) and saliva antioxidant activity (SAOX)) after the exposure of the oral cavity to aromatized wine matrices with different chemical compositions (dealcoholized, alcoholized, and synthetic wines) have been investigated. For this, stimulated saliva from ten volunteers were collected five days per week (from Monday to Friday) during three non-consecutive weeks, before (basal saliva) and after the oral intervention with the wines (5 and 15 minutes later) (n = 450). In order to know the relationship between the changes induced in salivary composition and the amount of aroma retained in the oral cavity, the expectorated wines were also collected (n = 150). Results showed differences in saliva composition (pH, TPI and SAOX) depending on the wine matrix that were only significant in the first five minutes after the oral exposure to the wines. The wines with ethanol produced significantly lower in-mouth aroma retention, while salivary TPI and, to a minor extent, SAOX, were positively related to the aroma retained. These results prove that not only wine aroma composition, but also the physiological changes in saliva induced by the non-volatile chemical composition of the wine play an important role in wine odorant compounds, and likely, in aroma perception.
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Affiliation(s)
- Celia Criado
- Instituto de Investigación en Ciencias de la Alimentación (CIAL), CSIC-UAM, C/Nicolás Cabrera, 9, 28049, Madrid, Spain.
| | - Carolina Muñoz-González
- Instituto de Investigación en Ciencias de la Alimentación (CIAL), CSIC-UAM, C/Nicolás Cabrera, 9, 28049, Madrid, Spain.
| | - Blanca Hernández-Ledesma
- Instituto de Investigación en Ciencias de la Alimentación (CIAL), CSIC-UAM, C/Nicolás Cabrera, 9, 28049, Madrid, Spain.
| | - María Ángeles Pozo-Bayón
- Instituto de Investigación en Ciencias de la Alimentación (CIAL), CSIC-UAM, C/Nicolás Cabrera, 9, 28049, Madrid, Spain.
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Chong PH, He Q, Rao P, Li L, Ke L. The interindividual variation of salivary flow rate and biochemistry in healthy adults: Influence of black tea consumption. J Funct Foods 2021. [DOI: 10.1016/j.jff.2021.104516] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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Dufourc EJ. Wine tannins, saliva proteins and membrane lipids. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2021; 1863:183670. [PMID: 34111413 DOI: 10.1016/j.bbamem.2021.183670] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 06/03/2021] [Indexed: 12/12/2022]
Abstract
Polyphenols have been part of human culture for about 6000 years. However, their mode of action in relation to wine tasting while eating is only beginning to be understood. This review, using analytical techniques and physicochemical concepts, attempts to summarize current knowledge and present an integrated view of the complex relationship between tannins, salivary proteins, lipids in food and in oral membranes. The action of tannins on taste sensations and astringency depends on their colloidal state. Although taste sensations are most likely due to interactions with taste receptors, astringency results from strong binding to proline-rich salivary proteins that otherwise lubricate the palate. Tannins disorder non-keratinized mucosa in mouth, possibly perturbing taste receptor function. The 10-15% ethanol present in wines potentiates this action. Cholesterol present in large quantities in keratinized mucosa prevents any disordering action on these oral membranes. Polyphenols bind strongly to the lipid droplets of fatty foods, a situation that reduces the astringency perceived when drinking a tannic wine, the so-called "camembert effect". Based on binding constants mainly measured by NMR, a comprehensive thermodynamic model of the interrelation between polyphenols, salivary proteins, lipids and taste receptors is presented.
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Affiliation(s)
- Erick J Dufourc
- Institute of Chemistry and Biology of Membranes and Nanoobjects, UMR5248, CNRS, University of Bordeaux, Bordeaux Polytechnic Institute, Allée Geoffroy Saint Hilaire, 33600 Pessac, France.
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Martins RARC, Costa FWG, Silva SM, Silva PGDB, Carvalho FSR, Fonteles CSR, Ribeiro TR. Salivary immunoglobulins (A, G, and M) in type 1 diabetes mellitus patients: A PROSPERO-registered systematic review and meta-analysis. Arch Oral Biol 2020; 122:105025. [PMID: 33341591 DOI: 10.1016/j.archoralbio.2020.105025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Revised: 11/28/2020] [Accepted: 12/06/2020] [Indexed: 12/16/2022]
Abstract
OBJECTIVE To assess the difference in the salivary levels of immunoglobulins between patients with type 1 diabetes mellitus (DM1) and healthy controls. DESIGN This systematic review was registered on the PROSPERO (CRD42020159198) database. All references were cross-checked and the risk of bias assessment was conducted using the Newcastle-Ottawa Scale. The Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) approach was used to appraise the quality of evidence. The standardized mean difference and Cohen's d as the effect size were used in the meta-analysis. I-square statistics was used to estimate heterogeneity. Analysis was performed using the RevMan® software (p < 0.05) with a 95 % confidence interval. RESULTS Of the total 92 articles, 9 were selected for this study. The meta-analysis included 333 DM1 patients and 325 healthy controls. DM1 patients showed a significant reduction in salivary flow (p = 0.0008; Cohen's d= -0.19, CI 95 %= -0.33, -0.05), although not significant enough to modify the IgA concentration (p = 0.120; Cohen's d = 0.58, CI 95 %= -0.15, 1.32). However, DM1 increased IgA concentration by reducing salivary flow (Cohen's d = 0.84; CI 95 % = 0.36, 1.32), with a strong estimate of effect (p = 0.0006). Regarding IgG, no significant change was noted with DM1 in the patient's saliva (p = 0.420). Furthermore, there was no significant variation in the salivary IgM levels (p = 0.300). CONCLUSIONS The data suggest that the salivary levels of the evaluated immunoglobulins do not seem to be altered in DM1 patients when compared to that in healthy controls. However, the increase in IgA salivary concentration was dependent on total protein estimation.
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Affiliation(s)
- Renata Asfor Rocha Carvalho Martins
- Department of Clinical Dentistry, School of Dentistry, Federal University of Ceará, Rua Monsenhor Furtado, s/n, Rodolfo Teófilo, CEP: 60430-160, Fortaleza, Ceará, Brazil.
| | - Fábio Wildson Gurgel Costa
- Department of Clinical Dentistry, School of Dentistry, Federal University of Ceará, Rua Monsenhor Furtado, s/n, Rodolfo Teófilo, CEP: 60430-160, Fortaleza, Ceará, Brazil.
| | - Sara Maria Silva
- Department of Clinical Dentistry, School of Dentistry, Federal University of Ceará, Rua Monsenhor Furtado, s/n, Rodolfo Teófilo, CEP: 60430-160, Fortaleza, Ceará, Brazil.
| | | | - Francisco Samuel Rodrigues Carvalho
- Division of Oral and Maxillofacial Surgery, School of Dentistry, Federal University of Ceará CampusSobral, Rua Conselheiro José Júlio, S/N, Centro, CEP: 62010-820, Sobral, Ceará, Brazil.
| | - Cristiane Sá Roriz Fonteles
- Department of Clinical Dentistry, School of Dentistry, Federal University of Ceará, Rua Monsenhor Furtado, s/n, Rodolfo Teófilo, CEP: 60430-160, Fortaleza, Ceará, Brazil.
| | - Thyciana Rodrigues Ribeiro
- Department of Clinical Dentistry, School of Dentistry, Federal University of Ceará, Rua Monsenhor Furtado, s/n, Rodolfo Teófilo, CEP: 60430-160, Fortaleza, Ceará, Brazil.
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Guerreiro C, Jesus M, Brandão E, Mateus N, de Freitas V, Soares S. Interaction of a Procyanidin Mixture with Human Saliva and the Variations of Salivary Protein Profiles over a 1-Year Period. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:13824-13832. [PMID: 33170702 DOI: 10.1021/acs.jafc.0c05722] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Procyanidins are widely associated with astringency perception and promptly interact/precipitate salivary proteins (SPs). In this work, the SP profile of 17 volunteers was monitored for 1 year, focusing on the SP families most related to astringency [aPRPs (acidic proline-rich proteins), bPRPs (basic proline-rich proteins), gPRPs (glycosylated proline-rich proteins), cystatins, P-B peptide, and statherin]. Although the total SP content remained constant, bPRPs showed high variability. Saliva from 5 volunteers was selected, each individual's saliva presenting a prominence in one of the referred SP families; each was used to interact with grape seed procyanidin oligomeric fraction. Independent of the prominences, a total depletion in statherin and P-B peptide was observed. These subjects performed a sensory assay and the limit of detection for astringency was determined. Overall, the specificity of SP toward procyanidins seemed to be more important in the interactions than the total SP content. The highest reactivity toward SPs was observed for epicatechin gallate, procyanidin dimers B7, B2g, and trimer C1.
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Affiliation(s)
- Carlos Guerreiro
- REQUIMTE/LAQV, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, 689 Porto, Portugal
| | - Monica Jesus
- REQUIMTE/LAQV, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, 689 Porto, Portugal
| | - Elsa Brandão
- REQUIMTE/LAQV, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, 689 Porto, Portugal
| | - Nuno Mateus
- REQUIMTE/LAQV, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, 689 Porto, Portugal
| | - Victor de Freitas
- REQUIMTE/LAQV, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, 689 Porto, Portugal
| | - Susana Soares
- REQUIMTE/LAQV, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, 689 Porto, Portugal
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Time Course of Salivary Protein Responses to Cranberry-Derived Polyphenol Exposure as a Function of PROP Taster Status. Nutrients 2020; 12:nu12092878. [PMID: 32967117 PMCID: PMC7551352 DOI: 10.3390/nu12092878] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 09/10/2020] [Accepted: 09/11/2020] [Indexed: 12/12/2022] Open
Abstract
Astringency is a complex oral sensation, commonly experienced when dietary polyphenols interact with salivary proteins. Most astringent stimuli alter protein levels, which then require time to be replenished. Although it is standard practice in astringency research to provide breaks in between stimuli, there is limited consensus over the amount of time needed to restore the oral environment to baseline levels. Here we examined salivary protein levels after exposure to 20 mL of a model stimulus (cranberry polyphenol extract, 0.75 g/L CPE) or unsweetened cranberry juice (CJ), over a 10 min period. Whole saliva from healthy subjects (n = 60) was collected at baseline and after 5 and 10 min following either stimulus. Five families of proteins: basic proline-rich proteins (bPRPs); acidic proline-rich proteins (aPRPs); histatins; statherin; and S-type cystatins, were analyzed in whole saliva via HPLC-low resolution-ESI-IT-MS, using the area of the extracted ion current (XIC) peaks. Amylase was quantified via immunoblotting. In comparison to baseline (resting), both stimuli led to a rise in levels of aPRPs (p < 0.000) at 5 min which remained elevated at 10 min after stimulation. Additionally, an interaction of PROP taster status and time was observed, wherein super-tasters had higher levels of amylase in comparison to non-tasters after stimulation with CJ at both timepoints (p = 0.014–0.000). Further, male super-tasters had higher levels of bPRPs at 5 min after stimulation with both CJ and CPE (p = 0.015–0.007) in comparison to baseline. These data provide novel findings of interindividual differences in the salivary proteome that may influence the development of astringency and that help inform the design of sensory experiments of astringency.
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11
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Structural Biology of Calcium Phosphate Nanoclusters Sequestered by Phosphoproteins. CRYSTALS 2020. [DOI: 10.3390/cryst10090755] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Biofluids that contain stable calcium phosphate nanoclusters sequestered by phosphopeptides make it possible for soft and hard tissues to co-exist in the same organism with relative ease. The stability diagram of a solution of nanocluster complexes shows how the minimum concentration of phosphopeptide needed for stability increases with pH. In the stable region, amorphous calcium phosphate cannot precipitate. Nevertheless, if the solution is brought into contact with hydroxyapatite, the crystalline phase will grow at the expense of the nanocluster complexes. The physico-chemical principles governing the formation, composition, size, structure, and stability of the complexes are described. Examples are given of complexes formed by casein, osteopontin, and recombinant phosphopeptides. Application of these principles and properties to blood serum, milk, urine, and resting saliva is described to show that under physiological conditions they are in the stable region of their stability diagram and so cannot cause soft tissue calcification. Stimulated saliva, however, is in the metastable region, consistent with its role in tooth remineralization. Destabilization of biofluids, with consequential ill-effects, can occur when there is a failure of homeostasis, such as an increase in pH without a balancing increase in the concentration of sequestering phosphopeptides.
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12
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Zhu C, Yuan C, Wei FQ, Sun XY, Zheng SG. Intraindividual Variation and Personal Specificity of Salivary Microbiota. J Dent Res 2020; 99:1062-1071. [PMID: 32374655 DOI: 10.1177/0022034520917155] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Salivary microbiota is a typical habitat of the human microbiome. This study intended to use salivary microbiota as a model aiming to systematically address the influence of collection methods and temporal dynamics on the human microbiota compared to personal specificity. We carried out a supervised short-term longitudinal study to evaluate the influence of the change of collection methods and sampling time point on salivary microbiota in 10 systemically and orally healthy individuals with certain confounding factors (sex, oral and general health state, medication history, physical exercise, diet, and oral hygiene behavior) controlled before and during the sampling period. The microbial profiles were analyzed by 16S rDNA V3 to V4 hypervariable region amplicon sequencing. The taxonomic structure represented by the dominant species and the weighted UniFrac distance algorithm were used to demonstrate the individual specificity and the intraindividual variation introduced by the change of collection method and sampling time point. The findings suggested individual specificity existed in salivary microbiota from individuals with similar oral and general health status. The intraindividual variation brought by the change of collection method or sampling time point might introduce remarkable perturbation with the personal specificity. Insights into the intraindividual variation and personal specificity of salivary microbiota will enhance our understanding in salivary microbiota-related research. We recommend keeping collection conditions consistent within a study to avoid interference brought by the sampling. The strategy of repeated sampling at multiple time points as representative samples, as well as thorough interpretation of the complex relationships and causality between microbiome composition and disease without the interference of temporal dynamics, is optimal for research exploring the relationship between the salivary microbiome and disease.
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Affiliation(s)
- C Zhu
- Department of Preventive Dentistry, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing, China
| | - C Yuan
- Department of Preventive Dentistry, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing, China
| | - F Q Wei
- Department of Preventive Dentistry, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing, China
| | - X Y Sun
- Department of Preventive Dentistry, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing, China
| | - S G Zheng
- Department of Preventive Dentistry, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing, China
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Brandão E, Fernandes A, Guerreiro C, Coimbra MA, Mateus N, de Freitas V, Soares S. The effect of pectic polysaccharides from grape skins on salivary protein – procyanidin interactions. Carbohydr Polym 2020; 236:116044. [DOI: 10.1016/j.carbpol.2020.116044] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 01/31/2020] [Accepted: 02/19/2020] [Indexed: 01/15/2023]
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14
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Bel'skaya LV, Sarf EA, Solomatin DV. Age and Gender Characteristics of the Infrared Spectra of Normal Human Saliva. APPLIED SPECTROSCOPY 2020; 74:536-543. [PMID: 31617400 DOI: 10.1177/0003702819885958] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The comparison of the characteristics of the infrared (IR) spectra of saliva of healthy volunteers was carried out based on gender and age. It is shown that statistically significant differences between male and female groups are observed for the absorption bands of proteins and lipids. At the same time, the absorbance of the bands assigned to proteins and nucleic acids is higher for males, whereas the absorbance of the bands assigned to lipids is higher in the group of females. It is established that the correlation relationships of the characteristics of the spectra and age are weakly expressed. Thus, when forming the criteria of the norm and pathology for saliva, it is necessary to take into account the gender of the subjects, while there are no strict requirements for taking into account age periodization. Nevertheless, the revealed patterns are valid only for the composition of the saliva of healthy volunteers, the extension of the results to groups of patients with various diseases, as well as other biological fluids, requires additional testing.
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Affiliation(s)
- Lyudmila V Bel'skaya
- Department of Biology and Biological Education, Omsk State Pedagogical University, Omsk, Russian Federation
| | - Elena A Sarf
- Department of Biology and Biological Education, Omsk State Pedagogical University, Omsk, Russian Federation
| | - Denis V Solomatin
- Department of Mathematics and Mathematics Teaching Methods, Omsk State Pedagogical University, Omsk, Russian Federation
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15
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Glumac M, Ritzoulis C, Chen J. Surface properties of adsorbed salivary components at a solid hydrophobic surface using a quartz crystal microbalance with dissipation (QCM–D). Food Hydrocoll 2019. [DOI: 10.1016/j.foodhyd.2019.105195] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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16
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Oliveira H, Perez-Gregório R, de Freitas V, Mateus N, Fernandes I. Comparison of the in vitro gastrointestinal bioavailability of acylated and non-acylated anthocyanins: Purple-fleshed sweet potato vs red wine. Food Chem 2019; 276:410-418. [DOI: 10.1016/j.foodchem.2018.09.159] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 09/24/2018] [Accepted: 09/25/2018] [Indexed: 01/21/2023]
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17
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Synergistic effect of mixture of two proline-rich-protein salivary families (aPRP and bPRP) on the interaction with wine flavanols. Food Chem 2019; 272:210-215. [DOI: 10.1016/j.foodchem.2018.08.024] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 07/30/2018] [Accepted: 08/07/2018] [Indexed: 01/20/2023]
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18
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Lisukha LM, Stepanova YI, Kolpakov IY, Podrushnyak AY. ELECTROLYTE CONTENT IN SALIVA OF CHILDREN WITH DEVIATION IN VEGETATIVE STATUS RESIDING AT RADIOACTIVELY CONTAMINATED TERRITORIES OF UKRAINE AFTER APPLICATION OF INTERMITTENT NORMOBARIC HYPOXIA. PROBLEMY RADIATSIINOI MEDYTSYNY TA RADIOBIOLOHII 2018; 23:359-372. [PMID: 30582857 DOI: 10.33145/2304-8336-2018-23-359-372] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Indexed: 06/09/2023]
Abstract
Objective was to determine the content of sodium (Na+), potassium (K+), calcium (Ca2+), and magnesium (Mg2+) elec-trolytes in non-stimulated mixed saliva of children, with disorders of autonomous nervous system (ANS), who wereborn and are permanently residing at radioactive contaminated territories after application of intermittent normo-baric hypoxia (INH) of sanogenic level.Patientes and methods. The children (41 boys and 62 girls) aged 6-17 years were examined. All they were dividedinto three groups: the control group consisted of 30 persons (group I); the comparison group - 30 person (groupII); the main group - 43 patients (group III). The collection of anamnesis, patient complaints, clinical and labora-tory examinations were included into the studied program. The content of electrolytes in oral fluids was determinedby the atomic absorption method. 10 seances of INH with a hypoxic component of 12 % oxygen in nitrogen wereused by us.Results. It was shown that the content of electrolytes in non-stimulated mixed saliva had a multidirectional signi-ficance in different age groups after INH: in examined children of primary school age (6-11 years), the Na+ concen-tration was significantly increased by 0.8 mmol/l, K+ concentration was decreased by 3 mmol/l, Ca2+ concentrationwas decreased by 1.07 mmol/l and in children of senior school age (12-17 years) - Na+, and Ca2+ concentrations weredecreased by 2 mmol/l and 0.17 mmol/l, respectively.Сonclusions. The obtained results allow to recommend the INH seances for addition to basic treatment of childrenwith disorders of autonomous nervous system, who were born and are permanently residing at radioactive contam-inated territories of Ukraine.
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Affiliation(s)
- L M Lisukha
- O. O. Bogomoletz Institute of Physiology, National Academy Sciences of Ukraine, 4 Bogomoletz street, Kyiv, 01024, Ukraine
| | - Ye I Stepanova
- State Institution «National Research Center for Radiation Medicine of the National Academy of Medical Sciences of Ukraine», 53 Melnykova street, Kyiv, 04050, Ukraine
| | - I Ye Kolpakov
- State Institution «National Research Center for Radiation Medicine of the National Academy of Medical Sciences of Ukraine», 53 Melnykova street, Kyiv, 04050, Ukraine
| | - A Ye Podrushnyak
- State Institution «L.I. Medved's Research Center of Preventive Toxicolog Food and Chemical Safety», 6 Heroiv Oborony str., Kyiv, 03680, Ukraine
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Glumac M, Qin L, Chen J, Ritzoulis C. Saliva could act as an emulsifier during oral processing of oil/fat. J Texture Stud 2018; 50:83-89. [PMID: 30345521 DOI: 10.1111/jtxs.12375] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Revised: 08/27/2018] [Accepted: 09/04/2018] [Indexed: 01/23/2023]
Abstract
Human saliva is a fluid naturally secreted in the oral cavity that interacts with food and food components for bolus formation, structure degradation, as well as lubrication. Because of the presence of salivary proteins, we speculate that saliva could also function as an effective emulsifier during oral processing of oil/fat. In this preliminary work, experiments were then designed to test this hypothesis. Whole human saliva from three healthy subjects were collected and analyzed for protein content, surface tension, and molecular weight distribution. Saliva emulsions were obtained both in vitro one and in situ for all three participating subjects. Droplet size distribution, zeta potential, and microstructure of such emulsions were examined immediately after the emulsification. Results show that stable saliva emulsions can be produced during oral processing of either pure oil (rapeseed oil) or fat food (pork belly in this work). Sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) analysis showed that protein fractions of 27 and 55 kDa molecular weights were favored for emulsion formation. This work suggests that human saliva could function as an effective emulsifier and oral emulsification could be an important mechanism for the oral processing of oil/fat. Despite being preliminary, findings from this work provide a new scientific insight to our understanding of the oral behavior of oil/fat and their sensory perception. PRACTICAL APPLICATIONS: Food industry is currently under a growing pressure to use novel techniques and ingredients to minimize the use of oil/fat in food products but without compromising its sensory quality. However, food industry has limited progresses because of the lack of understanding of the mechanisms of oral sensation and perception of oil/fat. Whereas there have been extensive debates about the sensory mechanisms of oil/fat, this work takes a step back by examining the oral behavior of oil/fat. Findings show that saliva can actually function as emulsifier to oil/fat, which means that ingested oil/fat will be dispersed and converted into an emulsion at the oral stage. The findings from this work offer food industry new insight on the sensory mechanisms of oil/fat.
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Affiliation(s)
- Miodrag Glumac
- School of Food Science and Biotechnology--SFSB, Food Oral Processing Laboratory, Zhejiang Gongshang University, Hangzhou, People's Republic of China
| | - Lanxi Qin
- School of Food Science and Biotechnology--SFSB, Food Oral Processing Laboratory, Zhejiang Gongshang University, Hangzhou, People's Republic of China
| | - Jianshe Chen
- School of Food Science and Biotechnology--SFSB, Food Oral Processing Laboratory, Zhejiang Gongshang University, Hangzhou, People's Republic of China
| | - Christos Ritzoulis
- School of Food Science and Biotechnology--SFSB, Food Oral Processing Laboratory, Zhejiang Gongshang University, Hangzhou, People's Republic of China.,Department of Food Technology, ATEI Thessaloniki, Thessaloniki, Greece
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20
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Agarwal K, Hwang S, Bartnik A, Buchele N, Mishra A, Cho JH. Small-Scale Biological and Artificial Multidimensional Sensors for 3D Sensing. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1801145. [PMID: 30062866 DOI: 10.1002/smll.201801145] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2018] [Revised: 06/08/2018] [Indexed: 06/08/2023]
Abstract
A vast majority of existing sub-millimeter-scale sensors have a planar, 2D geometry as a result of conventional top-down lithographic procedures. However, 2D sensors often suffer from restricted sensing capability, allowing only partial measurements of 3D quantities. Here, nano/microscale sensors with different geometric (1D, 2D, and 3D) configurations are reviewed to introduce their advantages and limitations when sensing changes in quantities in 3D space. This Review categorizes sensors based on their geometric configuration and sensing capabilities. Among the sensors reviewed here, the 3D configuration sensors defined on polyhedral structures are especially advantageous when sensing spatially distributed 3D quantities. The nano- and microscale vertex configuration forming polyhedral structures enable full 3D spatial sensing due to orthogonally aligned sensing elements. Particularly, the cubic configuration leveraged in 3D sensors offers an array of diverse applications in the field of biosensing for micro-organisms and proteins, optical metamaterials for invisibility cloaking, 3D imaging, and low-power remote sensing of position and angular momentum for use in microbots. Here, various 3D sensors are compared to assess the advantages of their geometry and its impact on sensing mechanisms. 3D biosensors in nature are also explored to provide vital clues for the development of novel 3D sensors.
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Affiliation(s)
- Kriti Agarwal
- Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Sehyun Hwang
- Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Aaron Bartnik
- Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Nicholas Buchele
- Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Avishek Mishra
- Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Jeong-Hyun Cho
- Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, MN, 55455, USA
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21
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The role of wine polysaccharides on salivary protein-tannin interaction: A molecular approach. Carbohydr Polym 2017; 177:77-85. [DOI: 10.1016/j.carbpol.2017.08.075] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2017] [Revised: 07/21/2017] [Accepted: 08/17/2017] [Indexed: 01/20/2023]
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22
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Verruck S, de Carvalho MW, de Liz GR, Amante ER, Vieira CRW, Amboni RDDMC, Prudencio ES. Survival of Bifidobacterium BB-12 microencapsulated with full-fat goat’s milk and prebiotics when exposed to simulated gastrointestinal conditions and thermal treatments. Small Rumin Res 2017. [DOI: 10.1016/j.smallrumres.2017.05.008] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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23
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Marvin RK, Saepoo MB, Ye S, White DB, Liu R, Hensley K, Rega P, Kazan V, Giovannucci DR, Isailovic D. Salivary protein changes in response to acute stress in medical residents performing advanced clinical simulations: a pilot proteomics study. Biomarkers 2017; 22:372-382. [PMID: 28055279 DOI: 10.1080/1354750x.2017.1279215] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
CONTEXT Quantitative changes of salivary proteins due to acute stress were detected. OBJECTIVE To explore protein markers of stress in saliva of eight medical residents who performed emergency medicine simulations. MATERIALS AND METHODS Saliva was collected before the simulations, after the simulations, and following morning upon waking. Proteins were separated by sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE), identified by mass spectrometry (MS), and relatively quantified by densitometry. RESULTS Salivary alpha-amylase and S-type cystatins significantly increased, while the ∼26 kDa and low-molecular weight (MW) (<10 kDa) SDS-PAGE bands exhibited changes after stress. DISCUSSION AND CONCLUSION Alpha-amylase and cystatins are potential salivary markers of acute stress, but further validation should be performed using larger sample populations.
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Affiliation(s)
- Rachel K Marvin
- a Department of Chemistry and Biochemistry , University of Toledo , Toledo , OH , USA
| | | | - Simiao Ye
- c Department of Mathematics and Statistics , University of Toledo , Toledo , OH , USA
| | - Donald B White
- c Department of Mathematics and Statistics , University of Toledo , Toledo , OH , USA
| | - Rong Liu
- c Department of Mathematics and Statistics , University of Toledo , Toledo , OH , USA
| | - Kenneth Hensley
- d Department of Pathology , University of Toledo, Toledo , OH, USA
| | - Paul Rega
- e Department of Emergency Medicine , University of Toledo , Toledo , OH , USA
| | - Viviane Kazan
- e Department of Emergency Medicine , University of Toledo , Toledo , OH , USA
| | | | - Dragan Isailovic
- a Department of Chemistry and Biochemistry , University of Toledo , Toledo , OH , USA
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Brossard N, Cai H, Osorio F, Bordeu E, Chen J. “Oral” Tribological Study on the Astringency Sensation of Red Wines. J Texture Stud 2016. [DOI: 10.1111/jtxs.12184] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Natalia Brossard
- School of Food Science and Biotechnology; Zhejiang Gongshang University; Hangzhou 310018 P.R. China
- Facultad de Agronomía e Ingeniería Forestal, Pontificia Universidad Católica de Chile; Chile
| | - Huifang Cai
- School of Food Science and Biotechnology; Zhejiang Gongshang University; Hangzhou 310018 P.R. China
| | - Fernando Osorio
- Department of Food Science and Technology; Universidad de Santiago de Chile; Chile
| | - Edmundo Bordeu
- Facultad de Agronomía e Ingeniería Forestal, Pontificia Universidad Católica de Chile; Chile
| | - Jianshe Chen
- School of Food Science and Biotechnology; Zhejiang Gongshang University; Hangzhou 310018 P.R. China
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25
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Ferrer-Gallego R, Soares S, Mateus N, Rivas-Gonzalo J, Escribano-Bailón MT, de Freitas V. New Anthocyanin-Human Salivary Protein Complexes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:8392-8401. [PMID: 26162056 DOI: 10.1021/acs.langmuir.5b01122] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The interaction between phenolic compounds and salivary proteins is considered the basis of the poorly understood phenomenon of astringency. Furthermore, this interaction is an important factor in relation to their bioavailability. In this work, interactions between anthocyanin and human salivary protein fraction were studied by mass spectrometry (MALDI-TOF-MS and FIA-ESI-MS) and saturation-transfer difference (STD) NMR spectroscopy. Anthocyanins were able to interact with saliva proteins. The dissociation constant (KD) between malvidin 3-glucoside and salivary proline-rich proteins was 1.92 mM for the hemiketal form (pH 3.4) and 1.83 mM for the flavylium cation (pH 1.0). New soluble complexes between these salivary proteins and malvidin 3-glucoside were identified for the first time.
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Affiliation(s)
- Raúl Ferrer-Gallego
- †REQUIMTE/LAQV, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, 687, 4169-007 Porto, Portugal
- ‡Grupo de Investigación en Polifenoles, Unidad de Nutrición y Bromatología, Facultad de Farmacia, Universidad de Salamanca, Campus Miguel de Unamuno, E 37007 Salamanca, Spain
| | - Susana Soares
- †REQUIMTE/LAQV, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, 687, 4169-007 Porto, Portugal
| | - Nuno Mateus
- †REQUIMTE/LAQV, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, 687, 4169-007 Porto, Portugal
| | - Julián Rivas-Gonzalo
- ‡Grupo de Investigación en Polifenoles, Unidad de Nutrición y Bromatología, Facultad de Farmacia, Universidad de Salamanca, Campus Miguel de Unamuno, E 37007 Salamanca, Spain
| | - M Teresa Escribano-Bailón
- ‡Grupo de Investigación en Polifenoles, Unidad de Nutrición y Bromatología, Facultad de Farmacia, Universidad de Salamanca, Campus Miguel de Unamuno, E 37007 Salamanca, Spain
| | - Victor de Freitas
- †REQUIMTE/LAQV, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, 687, 4169-007 Porto, Portugal
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