Dietary fiber water-holding capacity

Several physicochemical properties of dietary fiber contribute to its physiological role. Water-holding capacity, ion-exchange capacity, solution viscosity, density, and molecular kiteractions are characteristics determined by the chemical stmcture of the component polysaccharides, thek crystallinity, and surface area. 

Suzuki, T., Ohsugi, Y., Yoshie, Y., Shirai, T., and Hirano, T. (1996). Dietary fiber content, water-holding capacity and binding capacity of seaweeds. Fish. Sci 62,454-461. Takenaka, S., Takubo, K., Watanabe, E., Tanno, T., Tsuyama, S., Nanano, Y., and Tamura, Y. (2003). Occurrence of coenzyme forms of vitamin B12 in a cultured purple laver (Porphyra yezoensis). Biosci. Biotechnol. Biochem. 67,2480-2482. 

Data have been presented emphasizing the variability of dietary fiber sources. Water holding capacity estimates differed by technique as well as source. The most Important advantage of the osmotic suction technique is that the measurement Includes the water soluble dietary fiber components. This is a more realistic model of the digestive tract. The human fecal batch in... 

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