Impact of oleuropein on rheology and breadmaking performance of wheat doughs, and functional features of bread

Summary Oleuropein (OP) is a polyphenol present in drupes and leaves of olive tree with health benefits and, as antioxidant, potentiality to alter gluten functionality. Effects of OP inclusion to wheat flour (0.01% and 0.02% on flour weight basis) on dough rheology and breadmaking performance, and b...

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Bibliographic Details
Published inInternational journal of food science & technology Vol. 57; no. 4; pp. 2321 - 2332
Main Authors Renoldi, Niccolò, Lucci, Paolo, Peressini, Donatella
Format Journal Article
LanguageEnglish
Published Oxford Wiley Subscription Services, Inc 01.04.2022
Subjects
Antioxidant
Antioxidants
Bread
Dough
Flour
flour improver
Fruit trees
Gluten
Oleuropein
Phenolic compounds
Phenols
Rheological properties
Rheology
Rheometry
starch digestion
Wheat
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Summary:Summary Oleuropein (OP) is a polyphenol present in drupes and leaves of olive tree with health benefits and, as antioxidant, potentiality to alter gluten functionality. Effects of OP inclusion to wheat flour (0.01% and 0.02% on flour weight basis) on dough rheology and breadmaking performance, and bread features were investigated. Farinograph, uniaxial extension and shear rheometry (oscillatory and creep‐recovery) were applied. Doughs containing OP were stronger, more elastic, and less sticky indicating the ability of OP to act as flour improver. The strengthening effect of OP on gluten led to the increase in bread volume and softer crumb compared to control. A lower crumb density of bread with the addition of OP was related to a higher in vitro glycaemic response. An increase in the antioxidant capacity of bread made with the phenolic compound was also found. Evaluation of oleuropein addition on wheat dough rheological properties and bread in vitro glycaemic response.
ISSN:0950-5423
1365-2621
DOI:10.1111/ijfs.15585