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  • Title: Low phytic acid lentils (Lens culinaris L.): a potential solution for increased micronutrient bioavailability.
    Author: Thavarajah P, Thavarajah D, Vandenberg A.
    Journal: J Agric Food Chem; 2009 Oct 14; 57(19):9044-9. PubMed ID: 19725537.
    Abstract:
    Phytic acid is an antinutrient present mainly in seeds of grain crops such as legumes and cereals. It has the potential to bind mineral micronutrients in food and reduce their bioavailability. This study analyzed the phytic acid concentration in seeds of 19 lentil ( Lens culinaris L.) genotypes grown at two locations for two years in Saskatchewan, Canada. The objectives of this study were to determine (1) the levels of phytic acid in commercial lentil genotypes and (2) the impact of postharvest processing and (3) the effect of boiling on the stability of phytic aid in selected lentil genotypes. The phytic acid was analyzed by high-performance anion exchange separation followed by conductivity detection. The Saskatchewan-grown lentils were naturally low in phytic acid (phytic acid = 2.5-4.4 mg g(-1); phytic acid phosphorus = 0.7-1.2 mg g(-1)), with concentrations lower than those reported for low phytic acid mutants of corn, wheat, common bean, and soybean. Decortication prior to cooking further reduced total phytic acid by >50%. As lowering phytic acid intake can lead to increased mineral bioavailability, dietary inclusion of Canadian lentils may have significant benefits in regions with widespread micronutrient malnutrition.
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