Study of Pectin Gelation Mechanism by Means of Fcs Technique
نویسندگان
چکیده
1 Nanoscopy, Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genova, Italy 2 Dept. Of Physics, University of Genoa, Via Dodecaneso 33, 16146, Genova, Italy 3 Nikon Imaging Center @IIT, Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genova, Italy 4 NEST, Scuola Normale Superiore and Istituto Nanoscienze CNR, Piazza San Silvestro 12, I-56127 Pisa, Italy 5 CNR Istituto di Biofisica (IBF), UOS Palermo, via Ugo La Malfa 153, 90146 Palermo, Italy
منابع مشابه
Rheological characterization of acid pectin samples in the absence and presence of monovalent ions.
Pectins are traditionally divided into two groups, high methoxy and low methoxy. The groupings determine the charge of the pectin and the gelation mechanism. However, not as yet extensively studied is the impact on gelation of the distribution of the charges as characterized by an absolute degree of blockiness (DBabs). The aim of this study was to characterize rheologically the acid gelation of...
متن کاملGelation of aqueous pectin solutions: a dynamic light scattering study.
We report the dynamic light scattering study of the gelation of aqueous solutions of the biopolymer, pectin, induced by the addition of calcium chloride. The time correlation function data are analyzed under the framework of the coupling model. As the solution enters the semidilute regime where gelation sets in, the relaxation process shows a stretched exponential behavior. The stretching expon...
متن کاملGelation Time of Hexamethylenetetramine Polymer Gels Used in Water Shutoff Treatment
Among the methods available to reduce water production, injecting a gelling system composed of a polymer and a crosslinker has been widely used. In this work, a hydrogel was prepared by crosslinking of an aqueous solution containing hexamethylenetetramine (HMTA) as crosslinker, hydrochloric acid (HCl) as an activator, and the co-polymer of 2-acrylamido-2methyl-propanesulfonic-acid sodium salt (...
متن کاملNMR and Rheological Studies of the Calcium Induced Gelation Process in Aqueous Low Methoxyl Pectin Solutions
The H NMR relaxometry in combination with water proton spin–spin relaxation time measurements and rheometry have been applied to study the ionic gelation of 1% w/w aqueous low methoxyl pectin solution induced by divalent Ca cations from a calcium chloride solution. The model-free approach to the analysis of H NMR relaxometry data has been used to separate the information on the static (β) and d...
متن کاملDairy Foods: Yogurt and Ice Cream
Pectin is commonly used as a gelling agent in the manufacture of yogurt. The objective of our study was to evaluate the impact of 4 different types of pectin that had different degrees of esterification (DE) and amidation (DA), on the physical properties of set type yogurt. The pectin samples included 2 types of low methoxyl (LM) pectin with 38% and 45% DE, one type of low methoxyl amidate (LMA...
متن کامل