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Type: Artigo de periódico
Title: Effect of sugar and sorbitol on the formation of low methoxyl pectin gels
Author: Grosso, CRF
Bobbio, PA
Airoldi, C
Abstract: Pectin gels were made with amidated low methoxyl pectin using sucrose, glucose, fructose and sorbitol as sweetening agents. The adsorption of water at controlled activity was measured by determining sorption isotherms and by differential scanning calorimetry. These results were correlated with the gel formation mechanism. H-1 NMR spectra were measured for sugar with and without Ca2+ or La3+ cations. Results demonstrated no correlation between water adsorption on sugars and gel rigidity. The effects of the different sugars appear to be associated with the competition between each sugar and the pectin for calcium cations. (C) 2000 Elsevier Science Ltd. All rights reserved.
Subject: pectin gels
water adsorption
Country: Inglaterra
Editor: Elsevier Sci Ltd
Citation: Carbohydrate Polymers. Elsevier Sci Ltd, v. 41, n. 4, n. 421, n. 424, 2000.
Rights: fechado
Identifier DOI: 10.1016/S0144-8617(99)00099-5
Date Issue: 2000
Appears in Collections:Unicamp - Artigos e Outros Documentos

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