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KMID : 1134819960250040715
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Journal of the Korean Society of Food Science and Nutrition
1996 Volume.25 No. 4 p.715 ~ p.719
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Physicochemical Properties of Dietary Fibers
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Hwang Jae-Kwan
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Abstract
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Dietary fibers consist mostly of complex carbohydrates such as cellulose, hemicelluloses and pectins, and also included are carbohydrate-based gums or hydrocolloids exampled as alginate, carrageenan, galactomannan, xanthan, etc. Due to structural diversity, dietary fibers can be classified by various ways, i.e., source, plant function, solubility, charge and topology. Understanding on the plant cell wall structure is of primary importance, since physicochemical properties of dietary fibers are dependent on the existence patterns in the cell wall. Depending on the four distinct observational dimensions, the physical parameters of dietary fibers were discussed in terms of raw sources, bulky & complex plant cell wall materials, individually separated hydrocolloid materials and specifically designed materials. Each existence state possesses the distinct physical parameters governing a variety of physiological properties of dietary fibers.
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KEYWORD
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dietary fiber, plant cell wall, properties
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