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Ability of human oral microbiota to produce wine odorant aglycones from odourless grape glycosidic aroma precursors

AutorMuñoz-González, Carolina ; Cueva, Carolina ; Pozo-Bayón, Mª Ángeles ; Moreno-Arribas, M. Victoria
Palabras claveHydrolytic activity
Glycosidic aroma precursors
Wine
Human oral microbiota
Fecha de publicación2015
EditorElsevier
CitaciónFood Chemistry 187: 112-119 (2015)
ResumenGrape aroma precursors are odourless glycosides that represent a natural reservoir of potential active odorant molecules in wines. Since the first step of wine consumption starts in the oral cavity, the processing of these compounds in the mouth could be an important factor in influencing aroma perception. Therefore, the objective of this work has been to evaluate the ability of human oral microbiota to produce wine odorant aglycones from odourless grape glycosidic aroma precursors previously isolated from white grapes. To do so, two methodological approaches involving the use of typical oral bacteria or the whole oral microbiota isolated from human saliva were followed. Odorant aglycones released in the culture mediums were isolated and analysed by HS-SPME-GC/MS. Results showed the ability of oral bacteria to hydrolyse grape aroma precursors, releasing different types of odorant molecules (terpenes, benzenic compounds and lipid derivatives). The hydrolytic activity seemed to be bacteria-dependent and was subject to large inter-individual variability.
URIhttp://hdl.handle.net/10261/127095
DOI10.1016/j.foodchem.2015.04.068
Identificadoresdoi: 10.1016/j.foodchem.2015.04.068
issn: 0308-8146
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