Effects of aqueous soaking on the phytate and mineral contents and phytate:mineral ratios of wholegrain normal sorghum and maize and low phytate sorghum

References

• Abebe Y, Bogale A, Hambidge KM, Stoecker BJ, Bailey K, Gibson RS. 2007. Phytate, zinc, iron and calcium content of selected raw and prepared foods consumed in rural Sidama, Southern Ethiopia, and implications for bioavailability. J Food Comp Anal 20:161–168
   Web of Science ®Google Scholar
• Afify AEMMR, El-Beltagi HS, Abd El-Salam SM, Omran AA. 2011. Bioavailability of iron, zinc, phytate and phytase activity during soaking and germination of white sorghum varieties. PLoS ONE 6:e25512
   PubMed Web of Science ®Google Scholar
• Beiseigel JM, Hunt JR, Glahn RP, Welch RM, Menkir A, Maziya-Dixon BB. 2007. Iron bioavailability from maize and beans: a comparison of human measurements with Caco-2 cell and algorithm predictions. Am J Clin Nutr 86:388–396
   PubMed Web of Science ®Google Scholar
• Bravo L. 1998. Polyphenols: chemistry, dietary sources, metabolism and nutritional significance. Nutr Rev 56:317–333
   PubMed Web of Science ®Google Scholar
• Cary EE, Grunes DL, Dallyn SL, Pearson A, Peck NH, Hulm RS. 1994. Plant Fe, Al and Cr concentrations in vegetables as influenced by soil inclusion. J Food Qual 17:467–476
   Web of Science ®Google Scholar
• De Boland AR, Garner GB, O’Dell BL. 1975. Identification and properties of “phytate” in cereal grains and oilseed products. Food Chem 23:1186–1189
   Web of Science ®Google Scholar
• Egli I, Davidsson L, Juillerat MA, Barclay D, Hurrell RF. 2002. The influence of soaking and germination on the phytase activity and phytic acid content of grains and seeds potentially useful for complementary feeding. J Food Sci 67:3484–3488
   Web of Science ®Google Scholar
• Fairweather-Tait S, Lynch S, Hotz C, Hurrell R, Abrahamse A, Beebe S, Bering S, et al. 2005. The usefulness of in vitro models to predict the bioavailability of iron and zinc: a consensus statement from the Harvest Plus expert consultation. Int J Vit Nutr Res 75:371–374
   PubMed Web of Science ®Google Scholar
• FAO. 2007a. Food supply. Available at: http://faostat.fao.org/site/609/default.aspx#ancor. Accessed on 01 March 2013
   Google Scholar
• FAO. 2007b. Production. Available at: http://faostat.fao.org/site/567/default.aspx#ancor. Accessed on 01 March 2013
   Google Scholar
• Feil B. 2001. Phytic acid. J New Seed 3:1–35
   Google Scholar
• Food and Agriculture Organization (FAO). 1992. Maize in human nutrition. Available at: http://www.fao.org/docrep/T0395E/T0395E03.htm. Accessed on 01 March, 2013
   Google Scholar
• Food and Agriculture Organization (FAO). 1995. Sorghum and millets in human nutrition. Available at: http://www.fao.org/DOCREP/T0818e/T0818E0e.htm#Minerals. Accessed on 01 March, 2013
   Google Scholar
• Frubeck G, Alonso R, Marzo F, Santidrian S. 1995. A modified method for the indirect quantitative analysis of phytate in foodstuffs. Anal Biochem 225:206–212
   PubMed Web of Science ®Google Scholar
• Glew RH, Van der Jagt DJ, Lockett C, Grivetti LE, Smith GC, Pastuszyn A, Milson M. 1997. Amino acid, fatty acid and mineral composition of 24 indigenous plants of Burkina Faso. J Food Comp Anal 10:205–217
   Google Scholar
• Hahn DH, Rooney LW, Earp CF. 1984. Tannins and phenols of sorghum. Cereal Foods World 29:776–779
   Web of Science ®Google Scholar
• Hotz C, Gibson RS, Temple L. 2001. A home-based method to reduce phytate content and increase zinc bioavailability in maize-based complementary diets. Int J Food Sci Nutr 52:133–142
   PubMed Web of Science ®Google Scholar
• Hotz C, Gibson RS. 2001. Assessment of home-based processing methods to reduce the phytate content and phytate/zinc molar ratio of white maize (Zea mays). J Agric Food Chem 49:692–698
   PubMed Web of Science ®Google Scholar
• Hotz C, Gibson RS. 2007. Traditional food-processing and preparation practices to enhance the bioavailability of micronutrients in plant-based diets. J Nutr 137:1097–1100
   PubMed Web of Science ®Google Scholar
• Hunt JR. 2003. Bioavailability of iron, zinc, and other trace minerals from vegetarian diets. Am J Clin Nutr 78:633S–639S
   PubMed Web of Science ®Google Scholar
• Hurrell RF. 2003. Influence of vegetable protein sources on trace element and mineral bioavailability. J Nutr 133:2973S–2977S
   PubMed Web of Science ®Google Scholar
• International Association for Cereal Science and Technology (ICC). 2012. Standard Method 176: Estimation of Sorghum Grain Endosperm Texture. Vienna: ICC
   Google Scholar
• Jackman RH, Black CA. 1951. Solubility of iron, aluminum, calcium, and magnesium inositol phosphates at different pH values. Soil Sci 72:179–186
   Web of Science ®Google Scholar
• Kaluza WZ, McGrath RM, Robberts C, Schroeder HH. 1980. Separation of phenolics of Sorghum bicolor (L.) Moench grain. J Agric Food Chem 28:1191–1196
   Web of Science ®Google Scholar
• Kayodé APP, Hounhouigan JD, Nout MJR. 2007. Impact of brewing process operations on phytate, phenolic compounds and in vitro solubility of iron and zinc in opaque sorghum beer. Food Sci Tech 40:834–841
   Google Scholar
• Kruger J, Taylor JRN, Oelofse A. 2012. Effects of reducing phytate content in sorghum through genetic modification and fermentation on in vitro iron availability in wholegrain porridges. Food Chem 131:220–224
   Web of Science ®Google Scholar
• Kruger J, Taylor JRN, Du X, De Moura FF, Lönnerdal B, Oelofse A. 2013. Effect of phytate reduction of sorghum, through genetic modification, on iron and zinc availability as assessed by an in vitro dialysability bioaccessibility assay, Caco-2 cell uptake assay, and suckling rat pup absorption model. Food Chem 141:1019–1025
   PubMed Web of Science ®Google Scholar
• Lehrfeld J. 1994. HPLC separation and quantitation of phytic acid and some inositol phosphates in foods: problems and solutions. J Agric Food Chem 42:2726–2731
   Web of Science ®Google Scholar
• Lestienne I, Icard-Vernière C, Mouquet C, Picq C, Treche S. 2005. Effects of soaking whole cereal and legume seeds on iron, zinc and phytate contents. Food Chem 89:421–425
   Web of Science ®Google Scholar
• Mahgoub SEO, Elhag SA. 1998. Effect of milling, soaking, malting, heat-treatment and fermentation of phytate level of four Sudanese sorghum cultivars. Food Chem 61:77–80
   Web of Science ®Google Scholar
• Matuschek E, Towo E, Svanberg U. 2001. Oxidation of polyphenols in phytate-reduced high-tannin cereals: effect on different phenolic groups and on in vitro accessible iron. J Agric Food Chem 49:5630–5638
   PubMed Web of Science ®Google Scholar
• Mendoza C, Viteri FE, Lönnerdal B, Raboy V, Young KA, Brown KH. 2001. Absorption of iron from unmodified maize and genetically altered, low-phytate maize fortified with ferrous sulfate or sodium iron EDTA. Am J Clin Nutr 73:80–85
   PubMed Web of Science ®Google Scholar
• Mendoza C, Viteri FE, Lönnerdal B, Young KA, Raboy V, Brown KH. 1998. Effect of genetically modified, low-phytic acid maize on absorption of iron from tortillas. Am J Clin Nutr 68:1123–1127
   PubMed Web of Science ®Google Scholar
• Mendoza C. 2002. Effect of genetically modified low phytic acid plants on mineral absorption. Int J Food Sci Tech 37:759–767
   Web of Science ®Google Scholar
• Morris ER, Ellis R. 1989. Usefulness of the dietary phytic acid/zinc molar ratio as an index of zinc bioavailability to rats and humans. Biol Trace Elem Res 19:107–117
   PubMed Web of Science ®Google Scholar
• O’Dell BL, de Bowland AR, Koirtyohann SR. 1972. Distribution of phytate and nutritionally important elements among the morphological components of cereal grains. J Agric Food Chem 20:718–721
   Web of Science ®Google Scholar
• Oatway L, Vasanthan T, Helm JH. 2001. Phytic acid. Food Rev Int 17:419–431
   Web of Science ®Google Scholar
• O'Dell BL, De Boland A. 1976. Complexation of phytate with proteins and cations in corn germ and oil seed meals. J Agric Food Chem 24:804–808
   Web of Science ®Google Scholar
• Perlas LA, Gibson RS. 2002. Use of soaking to enhance the bioavailability of iron and zinc from rice-based complementary foods used in the Philippines. J Sci Food Agric 82:1115–1121
   Web of Science ®Google Scholar
• Price ML, Van Scoyoc S, Butler LG. 1978. A critical evaluation of the vanillin reaction as an assay for tannin in sorghum grain. J Agric Food Chem 26:1214–1218
   Web of Science ®Google Scholar
• Rooney LW, Waniska RD. 2000. Food and industrial utilization. In: Smith CW, Frederiksen RA, editors. Sorghum, origin, history, technology and production. New York: Wiley. p 689–729
   Google Scholar
• Schlemmer U, Frølich W, Prieto RM, Grases F. 2009. Phytate in foods and significance for humans: food sources, intake, processing, bioavailability, protective role and analysis. Mol Nutr Food Res 53:S330–S375
   PubMed Web of Science ®Google Scholar
• Spencer JD, Allee GL, Sauber TE. 2000. Phosphorus bioavailability and digestibility of normal and genetically modified low-phytate corn for pigs. J Anim Sci 78:675–681
   PubMed Web of Science ®Google Scholar
• Temple L, Gibson RS, Hotz C. 2002. Use of soaking and enrichment for improving the content and bioavailability of calcium, iron and zinc in complementary foods and diets of rural Malawian weanlings. J Food Sci 67:1926–1932
   Web of Science ®Google Scholar
• Tulchinsky TH. 2010. Micronutrient deficiency conditions: global health issues. Public Health Rev 32:243–255
   Google Scholar
• Umeta M, West CE, Fufa H. 2005. Content of zinc, iron, calcium and their absorption inhibitors in foods commonly consumed in Ethiopia. J Food Comp Anal 18:803–817
   Web of Science ®Google Scholar
• World Health Organization (WHO). 2005. Nutrient in drinking water. Geneva, Switzerland: WHO
   Google Scholar
• World Health Organization (WHO). 2007. Global database on anaemia. Geneva, Switzerland: WHO
   Google Scholar