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Pak J Pharm Sci. 2017 Sep;30(5):1733-1742.

Essential minerals and phytic acid in legumes with reference to their nutritive and medicinal properties.

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Department of Pharmacognosy, Faculty of Pharmacy and Pharmaceutical Sciences, University of Karachi, Karachi, Pakistan.
The Aga Khan University Hospital, Stadium Road, Karachi, Pakistan.
Colorcon Limited UK, Flagship House, Victory Way, Crossways, Dartford, Kent, DA26 QD, England.


Three commonly used legumes, Macrotyloma uniflorum (Lam.) Verdc., Phaseolus lunatus Linn., and Phaseolus vulgaris Linn., were subjected to determine their minerals and phytic acid contents to correlate their nutritional and medicinal properties. To quantify essential minerals, atomic absorption spectroscopic method, while for phytic acid estimation, spectrophotometric method was used. Presence of Fe, Mg, Mn, P and Zn were recorded in good quantities, Ca and Cu in moderate, while K in small quantity in the seed flours of all the three tested legumes. Maximum Fe and Zn content (0.38 and 0.40 mg/g) were recorded in P. vulgaris, while M. uniflorum delivered high content of Mg, Mn, P and Ca (0.21, 0.20, 77.94 and 0.04 mg/g) and 0.04 mg/g Cu was recorded in P. lunatus. The highest level of phytic acid (37.00 mg/g) was recorded in M. uniflorum at 519 nm. The estimated quantities of minerals and phytic acid provide a good opportunity to draw a conclusion that all the three tested legumes could potentially be used as food to achieve nutritional and health related functional benefits.

[Indexed for MEDLINE]

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