Stability of Iodine in Differently Iodised Salts: Stability of Iodine in Iodized Salts

Kalsoom  Siddiq; Muhammad  Samiullah; Yamin  Rashid; Muhammad  Ihsan; Muhammad  Yasir; Fawad Ali

doi:10.54393/pbmj.v5i5.361

Authors

Kalsoom Siddiq Department of Human Nutrition and Dietetics, Women University Mardan KP, Pakistan
Muhammad Samiullah Department of Human Nutrition Faculty of Nutrition Sciences The University of Agriculture, Peshawar
Yamin Rashid Swat Medical College Swat, Khyber Pakhtunkhwa, Pakistan
Muhammad Ihsan Department of Human Nutrition Faculty of Nutrition Sciences The University of Agriculture, Peshawar
Muhammad Yasir Department of Human Nutrition Faculty of Nutrition Sciences The University of Agriculture, Peshawar
Fawad Ali Institute of Biotechnology and Microbiology Bacha Khan University Charsadda KP Pakistan

DOI:

https://doi.org/10.54393/pbmj.v5i5.361

Keywords:

Iodine, Salt , Stability, Potassium iodide

Abstract

Iodine deficiency is a public health problem worldwide. Iodization of salt is a valuable technique to overcome iodine insufficiency. There are, however, problems in uniform iodization of salt. The study was conducted to investigate comparative stability and uniformity of mixing of iodine in iodized salt fortified with aqueous solution of KIO₃(powder grade salt) or the same compound added additionally in dry form (granular grade salt). The research study was conducted in the laboratory of Nutrition, Section of the Food science Division of Nuclear institute for Food and Agriculture (NIFA), Peshawar. Salt samples were prepared in a medium sized salt crushing facility at Lahore. These samples were transported in bulk packing to Nuclear Institute for Food and Agriculture (NIFA), Peshawar. Following 3 types of samples will be prepared; powder grade salt fortified with 50 ppm of iodine as KIO₃ solution using drip system, granular grade salt iodized with the same system without additional KIO₃(this grade of iodized salt always lacks complete and homogeneous iodization and needs addition of more iodine to attain the 50 ppm level) and granular grade salt iodized with additional KIO₃ to make up the total to 50 ppm. the salt samples were packed in high density polyethylene (HDPE) and low density polyethylene (LDPE) packing separately. Analysis was carried out at the initial stage (0day) and subsequently at monthly interval up to fourth month. By standard iodometric titration all collected salt samples were tested for their iodine levels. Data were statistically analyzed using Statistix version 8.0. ANOVA were worked out by completely randomized design with factorial arrangement. Means were separated using Tucky HSD test. The mean moisture contents of salt packed in LDPE and HDPE varied significantly (P < 0.05), salt packed in LDPE showed higher average moisture contents than the salts packed in HDPE. Effect of iodization type was also significant (P<0.05) on the moisture contents of the salts. Granular salt iodized with drip and additional dry KIO₃ had the highest moisture contents followed by granular salt iodized with drip system and the lowest moisture content was exhibited by powdered salt iodized with drip system only. The mean moisture contents of salt during different storage intervals were significantly (P < 0.05) different from each other, except during third and four month, With the salt showing higher average moisture contents during the last month and lowest in the first month. Effect of iodization type was also significant (P<0.05) on the moisture contents of the salt. Granular salt iodized with drip and additional dry KIO₃ had the highest moisture contents followed by granular salt iodized with drip system and the lowest moisture content was exhibited by powdered salt iodized with drip system only. The mean moisture contents of salt during different storage periods were significantly (P < 0.05) different from each other, except during third and four month. The salt showed higher average moisture contents during the last month and lowest in the first month. Effect of packing material type was also significant (P<0.05) on the moisture contents of the salt. The mean moisture contents of salt packed in LDPE and HDPE varied significantly (P < 0.05).However, salt packed in LDPE showed higher average moisture contents than that of salts packed in HDPE. The powder salt retained iodine better than the other two salts types used. The iodine retention gradually decreased during storage periods. Among the packaging material used the salt in low density polyethylene showed higher moisture content. During storage intervals the average moisture content increased. The granular salt (grade II) showed maximum moisture content among the three salt types

References

Mellor, J.W., Supplement to Mellor's Comprehensive Treatise on Inorganic and Theoretical Chemistry: suppl. 3. K, Rb, Cs, Fr. Vol. 2. 1922: Longmans, Green and Company.

Ahad, F. and S.A. Ganie, Iodine, Iodine metabolism and Iodine deficiency disorders revisited. Indian journal of endocrinology and metabolism, 2010. 14(1): p. 13.

Organization, W.H., The management of nutrition in major emergencies. 2000: World Health Organization.

Child, Y., A Review of the Situation in the SEA Region.

Mannar, M.V., et al., Salt iodization for the elimination of iodine deficiency. 1995: ICCIDD, NL.

Organization, W.H., Guidelines on food fortification with micronutrients. 2006: World Health Organization.

Myers, N.M., E.N. Kernisan, and M. Lieberman, Lab on paper: iodometric titration on a printed card. Analytical chemistry, 2015. 87(7): p. 3764-3770.

Rahman, M.M., Selenium Biofortification in Lentil. 2014, The University of Western Australia.

Bressani, R. and G. City, close this book Food and Nutrition Bulletin Volume 18, Number 4, 1997 (UNU, 1997, 102 p.). Food and Nutrition Bulletin, 1997. 18(4).

Gadekar, Y., et al., Usage of sodium ascorbate and alpha tocopherol acetate. Fleischwirtsch. Int, 2014. 29: p. 52-57.

Singh, V. and K. Kaur, Development, formulation and shelf life evaluation of baby corn soup mix from industrial by-products. Journal of Food Science and Technology, 2020. 57(5): p. 1917-1925.

Diosady, L., J. Alberti, and M.V. Mannar, Microencapsulation for iodine stability in salt fortified with ferrous fumarate and potassium iodide. Food Research International, 2002. 35(7): p. 635-642.

Diosady, L., et al., Stability of iodine in iodized salt used for correction of iodine-deficiency disorders. Food and Nutrition bulletin, 1997. 18(4): p. 1-9.

Sangakkara, A.R., Double fortification of salt with folic acid and iodine. 2011.

Diosady, L., et al., Stability of iodine in iodized salt used for correction of iodine-deficiency disorders. II. Food and Nutrition Bulletin, 1998. 19(3): p. 240-250.

Kumar, R., et al., Bioaccumulation of Fluoride in Plants and Its Microbially Assisted Remediation: A Review of Biological Processes and Technological Performance. Processes, 2021. 9(12): p. 2154.

Ranganathan, S., et al., Stability of iodine in salt fortified with iodine and iron. Food and nutrition bulletin, 2007. 28(1): p. 109-115.

Gottfried, J.L., et al., Standoff detection of chemical and biological threats using laser-induced breakdown spectroscopy. Applied spectroscopy, 2008. 62(4): p. 353-363.

BEYENE, A.A., Approved by Examining Board. 2010, ADDIS ABABA UNIVERSITY.

Narasinga Rao, B.S., Fortification of salt with iron and iodine to control anaemia and goitre: development of a new formula with good stability and bioavailability of iron and iodine. Food and Nutrition Bulletin, 1994. 15(1): p. 1-7.

Monika, M., et al., BVS-10 EVALUATION OF BETAINE AS HEAT AMELIORATING AGENT IN HEAT STRESSED BROILER CHICKEN. Chief Editors.