Influence of Homogenization Time and Speed on Rheological and Volatile Composition in Olive-Based Pâtés

The influence of the homogenization time and speed on rheological and volatile composition in olive-based pâtés was studied. Five experimental trials were performed applying different combinations of time and speed homogenization: 1, 3, and 5 min at 12,000 rpm and 4000, 8000, and 1...

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Bibliographic Details
Main Authors: Francesco Caponio, Graziana Difonzo, Giacomo Squeo, Stefania Fortunato, Roccangelo Silletti, Carmine Summo, Vito M. Paradiso, Antonella Pasqualone
Format: Article
Language:English
Published: MDPI AG 2019-04-01
Series:Foods
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Online Access:https://www.mdpi.com/2304-8158/8/4/115
Description
Summary:The influence of the homogenization time and speed on rheological and volatile composition in olive-based p&#226;t&#233;s was studied. Five experimental trials were performed applying different combinations of time and speed homogenization: 1, 3, and 5 min at 12,000 rpm and 4000, 8000, and 12,000 rpm at 5 min. The obtained results showed that the processing parameters of the homogenization step significantly influenced the rheological and sensory properties of olive-based p&#226;t&#233;s. Both time and speed influenced the rheological properties of the product. The increase of homogenization time and speed determined a significant reduction of hardness and syneresis. As regards color indices, significantly higher <i>L</i>* values were obtained when intermediate time and speed conditions were applied, whereas <i>a</i>* and <i>b</i>* indices showed a not univocal behavior. Both time and speed variables also influenced the volatile fraction of the p&#226;t&#233;s (higher homogenization speed and time corresponded to higher terpenes and aldehydes).
ISSN:2304-8158