Back to Search
Start Over
Interaction of a Procyanidin Mixture with Human Saliva and the Variations of Salivary Protein Profiles over a 1-Year Period
- Source :
- CIÊNCIAVITAE
- Publication Year :
- 2020
- Publisher :
- American Chemical Society (ACS), 2020.
-
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.
- Subjects :
- 0106 biological sciences
chemistry.chemical_classification
Saliva
Period (gene)
010401 analytical chemistry
Trimer
Peptide
General Chemistry
01 natural sciences
Catechin
0104 chemical sciences
chemistry.chemical_compound
Epicatechin gallate
chemistry
Proanthocyanidin
Biochemistry
Polyphenol
Salivary Proteins
Biflavonoids
Humans
Proanthocyanidins
Salivary Proteins and Peptides
General Agricultural and Biological Sciences
010606 plant biology & botany
Subjects
Details
- ISSN :
- 15205118 and 00218561
- Volume :
- 68
- Database :
- OpenAIRE
- Journal :
- Journal of Agricultural and Food Chemistry
- Accession number :
- edsair.doi.dedup.....5bca8c4aa7e469e880c46d3f86129b41