Rheological characteristics of healthy sugar substituted spreadable strawberry product

Peinado Pardo, Irene, Rosa, Estela, Heredia, Ana and Andrés, Ana (2012) Rheological characteristics of healthy sugar substituted spreadable strawberry product. Journal of Food Engineering, 113 (3). pp. 365-373. ISSN 0260-8774

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Abstract

Full replacement of sucrose with healthier sugars such as fructose and/or isomaltulose is possible in spreadable strawberry products. These products formulated with different sugars (sucrose, isomaltulose, sucrose–glucose, and fructose–isomaltulose) were rheologically analysed. Static tests characterized them as Herschel–Bulkley fluids. The values of the consistency index (k) and yield stress (s0 were influenced by the type of sugar, the elaboration method and the pectin levels; while the fluidity index (n) was not affected by the different sugars, but by the elaboration method and the levels of pectin. The dynamic tests permitted classification of some of the products as weak gels. The strength of the network ‘‘A’’ increased with the pectin level, while the ‘‘coordination number’’ ‘‘z’’ did not show a clear trend depending on the different process variables.

Item Type:	Article
Uncontrolled Keywords:	Isomaltulose, fructose, sucrose, rheology, spreadable strawberry
Subjects:	B400 Nutrition D600 Food and Beverage studies
Department:	Faculties > Health and Life Sciences > Applied Sciences
Depositing User:	Irene Peinado-Pardo
Date Deposited:	21 Dec 2012 14:53
Last Modified:	12 Oct 2019 18:27
URI:	http://nrl.northumbria.ac.uk/id/eprint/10867

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