Gelling citrus fibers and methods of manufacture

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A method of making a gelling citrus fiber, the fiber comprising a pectin component and a cellulosic component, the method comprising:

• a. recording a measured spectrum of the material;
• b. and evaluating the spectrum against a model that correlates the spectrum against a second parameter of one or more of the pectin component or cellulosic component containing cellulosic material wherein the spectrum is evaluated at least within a wavenumber range selected from the group consisting of:
• i. a wavenumber range from about 1400 to about 845 cm−1.

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A composition comprising:

• a gelling citrus fiber material and a second ingredient;
• wherein the gelling citrus fiber material comprises a) a cellulosic component and b) an associated pectin component in an amount of from 40% to 50% (% galacturonic acid (% GA)), the pectin component has a degree of esterification (% DE) of from about 10% to about 80% and the gelling citrus fiber material having a molecular weight from about 50 kDa to about 275 kDa.

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