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Nyarko, B.J.B.; Serfor-Armah, Y.; Osae, S.; Akaho, E.H.K.; Anim-Sampong, S.; Maakuu, B.T.

doi:10.1023/a:1014868327556

Cited by 5 publications

(2 citation statements)

References 13 publications

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“…Plants are selective in their absorption of elementsin a soil (Teherani, 1987), with their growth and maturity being dependent on the availability or otherwise, and the proportions in which micronutrients are present in the soil (Das, 2014). From Figure 3b Ghanaian foods have been observed to be very low in Iodine (Nyarko, Serfor-Armah, Akaho, Anim-Sampong, and Maakuu. 2002).…”

Section: Statistical Analysesmentioning

confidence: 99%

Assessment of Nine Micronutrients in Jasmine 85 Rice Grown in Ghana Using Neutron Activation Analysis

Vowotor¹,

Amoako²,

Sefa-Ntiri³

et al. 2020

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The amount of micronutrients in food is a key factor that determines the health status of a person. The concentrations of nine micronutrients, Sodium (Na), Magnesium (Mg), Chlorine (Cl), Potassium (K), Calcium (Ca), Vanadium (V), Manganese (Mn), Copper (Cu) and Iodine (I), in polished Jasmine 85 rice, locally cultivated in five rice farming areas in Ghana (Afienya, Afife, Dawhenya, Ashaiman and Aveyime), were determined using Neutron Activation Analysis. The standard materials used as reference were the International Atomic Energy Agency (IAEA)-530 Tuna fish homogenate and the National Institute of Standard and Technology (NIST) USA 1566b Oyster Tissue. Recoveries of the elemental concentrations ranged from 88% to 111% of the certified values. Relative standardization method was used in the quantification of the elements. The range of concentrations measured in the rice are: 142.3-188.1 mg/kg for Na, 483.2-875.7 mg/kg for Mg, 465.6-718.0 mg/kg for Cl, 514.6-2949.0 mg/kg for K, 2303.0-2622.0 mg/kg for Ca, 0.0698-0.1925 mg/kg for V, 9.956-14.460 mg/kg for Mn, 0.8728-1.6790 mg/kg for Cu and 0.1181-0.1447 mg/kg for I. Using Hierarchical clustering analysis and Principal Component Analysis to evaluate the intensities of measured concentrations, K was established to be the most abundant, and was used to categorize two distinct clusters; Group 1 farms (Ashaiman, Afienya, and Dawhenya) and Group 2 farms (Aveyime and Afife). Group 2 farms recorded elevated intensities of micronutrients. With Pearson's correlation coefficient, some noteworthy correlations realized were between Na and K (r = 0.951), Na and V (r = 0.842) and K and V (r = 0.812). This indicated the same or similar source inputs for each pair. The calculated mean daily intake of K exceeded the mean Recommended Dietary Allowable and Adequate Intake for all Life Stage Groups. Estimated health risk associated with the consumption of rice was only present for children between the ages of 1 and 3 for Mg. The information on these nine micronutrients content of the rice from these five farming areas would be valuable in rice consumption studies to evaluate the overall availability of micronutrients to the Ghanaian populace and age groups and also in nutrition planning for analysis of nationwide rice supplies, mainly for regions and countries known to be susceptible to deficiencies of these micronutrients. The techniques espoused in this research can be used to accurately determine the concentration of micronutrients in rice and also trace the area where the rice was produced.

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Section: Statistical Analysesmentioning

confidence: 99%

Assessment of Nine Micronutrients in Jasmine 85 Rice Grown in Ghana Using Neutron Activation Analysis

Vowotor¹,

Amoako²,

Sefa-Ntiri³

et al. 2020

View full text Add to dashboard Cite

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“…A rapid chemiluminescence method has been developed for the determination of iodate based on its reaction with iodide in acidic condition 15 . Trace amounts of iodate and iodide in table salt samples have been estimated by Epithermal Neutron Activation Analysis using Cadmium shielding and boron carbide 16 . A flow injection spectrophotometric method has been standardized for the determination of iodate and per-iodate by their reaction with pyrogallol red in acidic media 17 .…”

Section: Introductionmentioning

confidence: 99%

A Simple and Rapid Spectrophotometric method for the determination of Iodate in table salt samples using Pyrogallol red dye

Kulkarni¹

2022

J. ISAS

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A simple and rapid spectrophotometric method for the determination of iodate in table salt samples has been standardized using the oxidation reaction of iodate with pyrogallol red dye in sulphuric acid medium. The determination of iodate was done by measuring the decrease in absorbance of pyrogallol red dye at 470 nm. A standard calibration curve was prepared, for iodate concentrations in the range of 0.05 µg mL-1 to5 µg mL-1. The effect of NaCl and Iinterference on iodate determination has been studied. The kinetics of the reaction between pyrogallol red and iodate has also been studied. The oxidation reaction was found to be first order with respect to iodate concentration. The method has been used for the determination of iodate in 10 different brands of locally available common salt samples. Key Words: Iodate, Table salt, Pyrogallol

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Review of analytical methods for the quantification of iodine in complex matrices

Shelor

Dasgupta

2011

Analytica Chimica Acta

128

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Cited by 5 publications

References 13 publications

Assessment of Nine Micronutrients in Jasmine 85 Rice Grown in Ghana Using Neutron Activation Analysis

Assessment of Nine Micronutrients in Jasmine 85 Rice Grown in Ghana Using Neutron Activation Analysis

A Simple and Rapid Spectrophotometric method for the determination of Iodate in table salt samples using Pyrogallol red dye

Review of analytical methods for the quantification of iodine in complex matrices

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