Astringency sensitivity to tannic acid: Effect of ageing and salivary proline-rich protein levels
The link between salivary composition and sensitivity to astringency as a function of age has still not been established. In this work, we propose the hypothesis that ageing leads to changes in the concentration of salivary proline-rich proteins (PRPs), which alters the astringency perception thresh...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2024-07-01
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| Series: | Food Chemistry: Molecular Sciences |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666566223000321 |
| _version_ | 1797371353640206336 |
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| author | Mei Wang Hélène Brignot Chantal Septier Christophe Martin Francis Canon Gilles Feron |
| author_facet | Mei Wang Hélène Brignot Chantal Septier Christophe Martin Francis Canon Gilles Feron |
| author_sort | Mei Wang |
| collection | DOAJ |
| description | The link between salivary composition and sensitivity to astringency as a function of age has still not been established. In this work, we propose the hypothesis that ageing leads to changes in the concentration of salivary proline-rich proteins (PRPs), which alters the astringency perception threshold with age. To test this hypothesis, astringency sensitivity to tannic acid and saliva was assessed in 30 elderly people and 24 young people. Basic PRPs (bPRPs) and glycosylated PRPs (gPRPs) were quantified immunochemically via western blot analysis. The results showed that the amounts of bPRPs and gPRPs were similar between the young and elderly groups. However, a positive correlation between the gPRP amount and astringency threshold was observed only in the young group, while a negative correlation between the bPRP amount and astringency threshold was observed only in the elderly group. This finding suggests differences in the contribution of PRP type to astringency perception as a function of age. |
| first_indexed | 2024-03-08T18:18:35Z |
| format | Article |
| id | doaj.art-6c6415700ad84fccb729713812c3d89a |
| institution | Directory Open Access Journal |
| issn | 2666-5662 |
| language | English |
| last_indexed | 2024-03-08T18:18:35Z |
| publishDate | 2024-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Food Chemistry: Molecular Sciences |
| spelling | doaj.art-6c6415700ad84fccb729713812c3d89a2023-12-31T04:28:25ZengElsevierFood Chemistry: Molecular Sciences2666-56622024-07-018100192Astringency sensitivity to tannic acid: Effect of ageing and salivary proline-rich protein levelsMei Wang0Hélène Brignot1Chantal Septier2Christophe Martin3Francis Canon4Gilles Feron5Centre des Sciences du Goût et de l'Alimentation, CNRS, INRAE, Institut Agro, Université de Bourgogne, F-21000 Dijon, FranceCentre des Sciences du Goût et de l'Alimentation, CNRS, INRAE, Institut Agro, Université de Bourgogne, F-21000 Dijon, FranceCentre des Sciences du Goût et de l'Alimentation, CNRS, INRAE, Institut Agro, Université de Bourgogne, F-21000 Dijon, FranceCentre des Sciences du Goût et de l'Alimentation, CNRS, INRAE, Institut Agro, Université de Bourgogne, F-21000 Dijon, FranceCorresponding authors.; Centre des Sciences du Goût et de l'Alimentation, CNRS, INRAE, Institut Agro, Université de Bourgogne, F-21000 Dijon, FranceCorresponding authors.; Centre des Sciences du Goût et de l'Alimentation, CNRS, INRAE, Institut Agro, Université de Bourgogne, F-21000 Dijon, FranceThe link between salivary composition and sensitivity to astringency as a function of age has still not been established. In this work, we propose the hypothesis that ageing leads to changes in the concentration of salivary proline-rich proteins (PRPs), which alters the astringency perception threshold with age. To test this hypothesis, astringency sensitivity to tannic acid and saliva was assessed in 30 elderly people and 24 young people. Basic PRPs (bPRPs) and glycosylated PRPs (gPRPs) were quantified immunochemically via western blot analysis. The results showed that the amounts of bPRPs and gPRPs were similar between the young and elderly groups. However, a positive correlation between the gPRP amount and astringency threshold was observed only in the young group, while a negative correlation between the bPRP amount and astringency threshold was observed only in the elderly group. This finding suggests differences in the contribution of PRP type to astringency perception as a function of age.http://www.sciencedirect.com/science/article/pii/S2666566223000321AstringencyThresholdbPRPsgPRPsElderlyTannic acid |
| spellingShingle | Mei Wang Hélène Brignot Chantal Septier Christophe Martin Francis Canon Gilles Feron Astringency sensitivity to tannic acid: Effect of ageing and salivary proline-rich protein levels Food Chemistry: Molecular Sciences Astringency Threshold bPRPs gPRPs Elderly Tannic acid |
| title | Astringency sensitivity to tannic acid: Effect of ageing and salivary proline-rich protein levels |
| title_full | Astringency sensitivity to tannic acid: Effect of ageing and salivary proline-rich protein levels |
| title_fullStr | Astringency sensitivity to tannic acid: Effect of ageing and salivary proline-rich protein levels |
| title_full_unstemmed | Astringency sensitivity to tannic acid: Effect of ageing and salivary proline-rich protein levels |
| title_short | Astringency sensitivity to tannic acid: Effect of ageing and salivary proline-rich protein levels |
| title_sort | astringency sensitivity to tannic acid effect of ageing and salivary proline rich protein levels |
| topic | Astringency Threshold bPRPs gPRPs Elderly Tannic acid |
| url | http://www.sciencedirect.com/science/article/pii/S2666566223000321 |
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