Effect of dietary cereal brans on the metabolism of calcium, phosphorous and magnesium in a long term rat study

Shah, B. G.; Malcolm, Scott Α.; Belonje, B.; Trick, Keith D.; Brassard, R.; Mongeau, R.

doi:10.1016/s0271-5317(05)80043-0

Cited by 21 publications

(10 citation statements)

References 23 publications

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“…Thus, mineral solubility and intestinal epithelial permeability are probably the principal determinants of Mg absorption (Hardwick et al 1990). The fact that phytic acid inhibits Mg absorption has been reported (Morris & Ellis, 1985;Miyazawa et al 1991) but is still disputed (Shah et al 1990).…”

Section: Discussionmentioning

confidence: 99%

Wholewheat flour ensures higher mineral absorption and bioavailability than white wheat flour in rats

et al. 1999

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Consumption of unrefined whole flour is thought to affect mineral bioavailability because it contains high levels of fibre and phytic acid. The present experiment was designed to study the absorption of minerals from diets based on wholewheat flour and white wheat flour in rats. Two groups of male Wistar rats were fed on the diets for 3 weeks and absorption and tissue retention of minerals were studied. The rats fed on the wholewheat flour diet had significantly greater food intake, weight gain, faecal excretion and intestinal fermentation than those fed on the white flour diet. Mineral intakes, except for Ca, were significantly greater in rats fed on the wholewheat flour diet (4-fold for Mg, 2-fold for Fe and Zn). A significant rise in the apparent absorption of Fe (%) and a significant decrease in the apparent absorption of Zn (%) were observed. The amounts of minerals absorbed (mg/d) were significantly enhanced (excepted for Ca) with the wholewheat flour diet. Moreover, plasma and tibia levels of Mg and plasma, liver and tibia levels of Fe were significantly increased in rats fed on the wholewheat flour diet compared with those fed on the white flour diet. In conclusion, wholewheat flour, rich in phytic acid and minerals, did not have a negative effect on mineral absorption, but rather improved the bioavailability of some minerals. Human studies are needed to confirm these rat results before extrapolation to human nutrition.

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Section: Discussionmentioning

confidence: 99%

Wholewheat flour ensures higher mineral absorption and bioavailability than white wheat flour in rats

et al. 1999

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“…Recommendation for the increase of dietary fibre (DF) intake has raised questions about their possible negative effects on mineral bioavailability (Idouraine et al 1995;Idouraine, Khan, Kohlhepp, et al 1996). Although this issue has raised interest among many scientists for the last two decades, conflicting results from numerous in vitro (Idouraine et al 1995;Luccia & Kunkel 2002;Persson et al 1987) and in vivo (Coudray et al 1997(Coudray et al , 2003Moak et al 1987;Shah et al 1990) studies have made it difficult to draw a clear conclusion on this controversial subject.…”

Section: Introductionmentioning

confidence: 99%

In vitrobinding capacity of organic (wheat bran and rice bran) and inorganic (perlite) sources for Mn, Zn, Cu, and Fe

Ghodrat

Yaghobfar

Ebrahimnezhad

et al. 2015

Journal of Applied Animal Research

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This study was carried out to determination of in vitro binding capacity of wheat bran, rice bran, and perlite for Mn, Zn, Cu, and Fe. For this reason, wheat bran and rice bran were chemically analysed for moisture, protein, ash, ether extract, total carbohydrate, neutral detergent fibre, acid detergent fibre, acid detergent lignin, crude fibre, cellulose, hemicelluloses, phytic acid, Non-Fiber Carbohydrate, total dietary fibre, soluble dietary fibre, insoluble dietary fibre, DF + lignin, and endogenous minerals. Mineral binding capacity of wheat bran, rice bran, and perlite for Mn, Zn, Fe, and Cu under sequential simulated physiological conditions of the stomach, small intestine, and colon was investigated and compared. Rice bran showed the highest mineral-binding capacity in small intestine for Mn, Zn, and Cu. Among the minerals, Mn exhibited the lowest percentage of binding under the simulated physiological conditions of the small intestine and the highest percentage of removing occurred in the stomach for all of the treatments. Cereal bran's had an affinity for Cu > Zn > Fe > Mn. The amounts of minerals bound varied among samples. Rice bran showed the highest and perlite had lowest mineral-binding capacity in small intestine for Mn, Zn, and Cu. ARTICLE HISTORY

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“…10 Although some in vitro and in vivo studies have shown that cereal brans can bind essential minerals, 11,12 other studies did not find adverse effects of cereal brans on mineral absorption and utilization. 13,14 Besides brans, MM contain other ingredients such as egg shell powder. Egg shell has high calcium content that is absorbed in the gastrointestinal tract.…”

Section: Introductionmentioning

confidence: 99%

Influence of cereal bran supplement on cadmium effects in growing rats

et al. 2009

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Strategies to diminish cadmium (Cd) absorption are highly desirable especially where Cd exposure due to environmental contamination is still inevitable. Cd toxicity may be influenced by dietary components, such as fiber and minerals. Multimixtures are low-cost cereal bran supplements used in Brazil and in other countries to counteract malnutrition in low-income populations. This study was aimed at evaluating whether multimixture would reduce Cd effects in young rats. Animals received a diet with or without the multimixture plus 0, 5, or 25 mg Cd/kg (control, Cd-5, and Cd-25 groups) during 30 days. The Cd-5 groups were similar to control groups in all parameters analyzed, except in the higher renal Cd concentration. However, the Cd-25 groups had lower biological growth parameters and renal δ-aminolevulinate dehydratase activity, besides higher renal Cd concentration and plasma alanine aminotransferase activity compared to the controls. The multimixture did not prevent Cd effects in the Cd-25 group, but caused a small reduction in renal Cd concentration in the Cd-5 group. Although this multimixture was ineffective to prevent Cd effects at the higher concentration, it seemed to reduce Cd accumulation at the lower Cd dietary concentration, which is similar to levels of human exposure in some polluted areas.

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Effect of dietary cereal brans on the metabolism of calcium, phosphorous and magnesium in a long term rat study

Cited by 21 publications

References 23 publications

Wholewheat flour ensures higher mineral absorption and bioavailability than white wheat flour in rats

Wholewheat flour ensures higher mineral absorption and bioavailability than white wheat flour in rats

In vitrobinding capacity of organic (wheat bran and rice bran) and inorganic (perlite) sources for Mn, Zn, Cu, and Fe

Influence of cereal bran supplement on cadmium effects in growing rats

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