コレステロール無添加飼料時のラット脂質代謝に及ぼす改質ビート食物繊維の影響

概要

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The effect of the physical properties of beet dietary fiber (BDF) on lipid metabolism was examined in rats fed a cholesterol-free diet containing 25%casein for 12 weeks. We prepared three kinds of BDF with different particle sizes (16-32,60-80,and 150-250 mesh). When rats were fed the smaller BDFs, the cecal organic acid content was higher. All three kinds of BDF prevented elevation of serum cholesterol and triglyceride concentrations,and also decreased liver total lipids. The smallest BDF tended to depress the serum cholesterol concentration more than the two other BDFs, there were no differences depending on particle size in the effects on the triglyceride concentration. We prepared a chemically modified BDF(m-BDF)by glyoxal treatment and a colloidal BDF (c-BDF) by passage of BDF through a ceramic grinder. BDF and c-BDF depressed serum cholesterol and triglyceride concentrations, but m-BDF had no such effect. These results suggest that there is a relationship between fermentability and the hypolipidemic activity of BDF. The hypolipidemic activity of BDF was not related to fecal excretion of steroids.
社団法人日本農芸化学会の論文
1994-02-01