Shear viscosity investigation on mango juice with high frequency longitudinal ultrasonic waves and rotational viscosimetry

Laux Didier, Valente Marc, Ferrandis Jean Yves, Talha Najat, Gibert Olivier, Prades Alexia. 2013. Shear viscosity investigation on mango juice with high frequency longitudinal ultrasonic waves and rotational viscosimetry. Food Biophysics, 8 (4) : 233-239.

https://doi.org/10.1007/s11483-013-9291-6

Article de revue ; Article de revue à facteur d'impact

Version publiée - Anglais
Accès réservé aux personnels Cirad
Utilisation soumise à autorisation de l'auteur ou du Cirad.
document_571183.pdf
Télécharger (317kB)

Quartile : Q2, Sujet : FOOD SCIENCE & TECHNOLOGY

Résumé : Ultrasonic velocity and attenuation measurements were performed on mango juices at 25 MHz in order to estimate longitudinal viscosity. Juices were extracted from fruits, removed periodically from fruit batches undergoing ripening for 3 weeks under controlled conditions. The correlation between longitudinal viscosity and apparent dynamic shear viscosity, obtained from flow tests, showed that up to 12-13 wt.% of Soluble Solids Content (SSC), the juices presented a Newtonian behavior. In this case the relation between longitudinal viscosity measured by ultrasound and shear viscosity measured by flow tests was very simple leading to the conclusion that ultrasound could replace rotating viscosimeters for specific applications. Over this limit, the results were also clearly correlated but the correlation depended on the shear rate because of the shear thinning behavior of the juices certainly due to soluble pectins. The use of longitudinal ultrasonic waves as a tool for viscosity determination on large batches of samples is discussed at the end of this communication.

Mots-clés Agrovoc : mangue, jus de fruits, Viscosité, technique ultrason, centrifugation, mesure (activité)

Mots-clés géographiques Agrovoc : France, Espagne

Classification Agris : Q02 - Traitement et conservation des produits alimentaires
U30 - Méthodes de recherche

Champ stratégique Cirad : Axe 3 (2005-2013) - Alimentation accessible et de qualité

Auteurs et affiliations