2006
DOI: 10.1021/jf0612981
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Kaempferol in Red and Pinto Bean Seed (Phaseolus vulgaris L.) Coats Inhibits Iron Bioavailability Using an in Vitro Digestion/Human Caco-2 Cell Model

Abstract: Four different colored beans (white, red, pinto, and black beans) were investigated for factors affecting iron bioavailability using an in vitro digestion/human Caco-2 cell model. Iron bioavailability from whole beans, dehulled beans, and their hulls was determined. The results show that white beans contained higher levels of bioavailable iron compared to red, pinto, and black beans. These differences in bioavailable iron were not due to bean-iron and bean-phytate concentrations. Flavonoids in the colored bean… Show more

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Cited by 63 publications
(51 citation statements)
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“…As breeding genotypes stood out FT Nobre and TB 02-11, both black grains, demonstrating that the distribution was dependent on the genotype in question, though the materials of red beans have excelled toward the other. According to Hu et al (2006), the highest astragaline levels were observed in grains with coat not black. In the analysis of the levels of antioxidant, unlike the contents of macro and micronutrients, the astragalina was more expressive in grains not black.…”
Section: Resultsmentioning
confidence: 98%
“…As breeding genotypes stood out FT Nobre and TB 02-11, both black grains, demonstrating that the distribution was dependent on the genotype in question, though the materials of red beans have excelled toward the other. According to Hu et al (2006), the highest astragaline levels were observed in grains with coat not black. In the analysis of the levels of antioxidant, unlike the contents of macro and micronutrients, the astragalina was more expressive in grains not black.…”
Section: Resultsmentioning
confidence: 98%
“…Hu et al (2006) showed that the polyphenol, kaempferol in the pigmented bean seed coat inhibited FEBIO.…”
Section: Discussionmentioning
confidence: 99%
“…Seeds with pigmented seed coat contained much greater concentrations of polyphenols than seeds with non-pigmented seed coat. In in vitro studies, seeds with pigmented seed coat or dark-colored fruits had a negative effect on iron bioavailability (Ariza-Nieto et al, 2007;Boato et al, 2002;Hu et al, 2006). Compared with the negative effect caused by phytate which can be reversed substantially by ascorbic acid (AA), this negative effect, caused by polyphenols, was barely reversed by AA (Engle-Stone et al, 2005).…”
Section: Anti-nutritional Factorsmentioning
confidence: 99%
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“…Among them, Phaseolus vulgaris (L.) is the most important staple food crop in several countries, providing significant amounts of protein, fibers, minerals and vitamins (Hu et al, 2006).…”
Section: Introductionmentioning
confidence: 99%