Alginate as a Source of Dietary Fiber

Cell & Molecular Biosciences, University of Newcastle-upon-Tyne, NE2 4HH, UK.
Critical Reviews in Food Science and Nutrition (Impact Factor: 5.18). 02/2005; 45(6):497-510. DOI: 10.1080/10408390500285673
Source: PubMed


Alginate, an algal polysaccharide, is widely used in the food industry as a stabilizer, or as a thickening or emulsifying agent. As an indigestible polysaccharide, alginate may also be viewed as a source of dietary fiber. Previous work has suggested that dietary fibres may protect against the onset and continuation of a number of cardiovascular and gastrointestinal diseases. This article aims to examine what is currently understood about the fiber-like activities of alginate, particularly its effects on intestinal absorption and the colon, and therefore aims to gauge the potential use of alginate as a dietary supplement for the maintenance of normal health, or the alleviation of certain cardiovascular or gastrointestinal diseases.

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    • "Seaweeds are a good source of soluble/viscous dietary fibre (Brownlee et al., 2005), minerals and vitamins, and also have associated bioactive compounds such as polyphenols (Bocanegra, Bastida, R odenas, Benedí, & S anchez-Muniz, 2009; Jim enez-Escrig & SanchezMuniz, 2000). They exert variable effects on rat cholesterolaemia and antioxidant status, which persist when included as functional ingredient in RP (Moreira et al., 2010) or other food matrices (Dawczynski, Schubert, & Jahreis, 2007). "
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    • "Seaweeds are rich sources of lipids, minerals, and certain vitamins, and also several bioactive substances like polysaccharides, proteins, and polyphenols, with potential medicinal uses against cancer [10], oxidative stress [11] [12], inflammation [13], allergy [14], diabetes [15], thrombosis [16], obesity [17], lipidaemia [18], hypertension [19], and other degenerative diseases. The history, chemistry, biomedical effects, and medical uses of seaweed species have been well documented and reviewed elsewhere [20] [21] [22] [23] [24]. Gold salts content within seaweed antioxidant could be reduced to obtain nanoparticles with specific properties offering potential applications in the biomedical field. "
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    • "It has been reported that dietary fiber can prevent obesity through a numerous mechanisms such as reducing caloric density of food (Schneeman, 1987), limiting the absorption of fat in the small intestine (Vahouny et al., 1988). Moreover, a soluble dietary fiber for instance alginate has a significant capacity to limit lipid absorption (Brownlee et al., 2005). Gum arabic (GA), an edible dried sticky exudate from Acacia seyal and Acacia senegal is rich in non-viscous soluble fiber (Slavin, 2013). "
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