食物繊維のアルミニウム結合能に及ぼすpHの影響

概要

論文の詳細を見る
We have previously reported that dietary fibers might be able to induce aluminium excretion by their binding ability to metal ions, but the study did not consider the effect of human gastric acidity. This present study analyzes the stability of binding between Al and dietary fibers extracted from 13 kinds of food comprising vegetables, mushrooms and sea weeds under the pH 2.0 condition which represents the acidity of gastric juice. The polysaccharide composition of insoluble dietary fibers (IDF) is known to differ from that of soluble dietary fibers (SDF). We therefore examined the relationship for the binding stability between indigestible polysaccharides and aluminium. The polymers in such uronic acids as alginic acid and pectin, and mucin were found to bind with aluminium. This indicates that the binding was influenced by both physical characteristics like viscosity and chemical effects.
社団法人日本家政学会の論文
2005-01-15