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http://dx.doi.org/10.5762/KAIS.2020.21.8.298

Study of the Washing Condition for High Quality of Solar Salt  

Han, Jae Woong (Department of Bio-industry mechanical engineering, Kongju National University)
Kim, Hoon (Research Group of Consumer Safety, Korea Food Research Institute)
Lee, Hyo-Jai (Department of Bio-industry mechanical engineering, Kongju National University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.21, no.8, 2020 , pp. 298-303 More about this Journal
Abstract
This study examined the washing conditions for high-quality solar salt. The salinity of the washing water was set to 5 % to prevent yield loss, and the temperatures of the washing water were 5, 10, 17.5, and 20 ℃. After washing the solar salt, the moisture content, salinity, insoluble matter, and sandy powder were measured from the solar salt. In addition, the color properties, L*[lightness], a*[redness], b*[yellowness], and yield were measured. The moisture content of the salt showed a tendency to increase when the temperature of the washing water was above 10 ℃, and the salinity and yield tended to decrease as the temperature of the washing water was high. The amount of insoluble matter decreased with decreasing temperature of the washing water. In the case of sandy powder, the highest value was 0.67 % at a washing water temperature of 5 ℃, and the value was 0.57 % under the other temperature conditions. Regarding the color properties, the b* [yellowness] of the color of the solar salt increased when the washing water temperature was high. This appeared to decrease the appearance quality. According to the above results, a washing water temperature above 10 ℃ was appropriate. The development of design factors of a high-quality solar salt production system is expected with experiments to define the drying conditions after the washing process.
Keywords
Salinity; Moisture Content; Yield; Insoluble Matter; Sandy Powder;
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  • Reference
1 H. Y. Beak, "A study on nutrition of salt", The Korean J Food Cook Sci , Vol.3, pp.92-106, 1987.
2 J. O. Ha, K. Y. Park, "Comparison of mineral contents and external structure of various salts", J Korean Soc Food Sci Nutr , Vol.27, No.3, pp.413-418, 1998.
3 S. H. Hwang, "A study on the heavy metal contents of common salts in Korea", Journal of Environmental Health Sciences , Vol.14, No.1, pp.73-86, 1988.
4 Codex Alimentarius Commission. Codex Standard: Standard for food grade salt. CX STAN 150-Amend. 2-2001. Codex Alimentarius Commission. Joint FAO/WHO Food Standards Program, Rome, 2001.
5 E. J. Jo, D. H. Shin, "Study on the Chemical Compositions of Sun-dried, Refined, and Processed Salt Produced in Chonbuk Area", J Food Hyg Saf, Vol.13, No.4, pp.360-3643, 1998.
6 K. K. Lee, "Preparation of magnesium oxide containing salt and bitter taste components", Korean Patent 10-2004-0086458.
7 Y. K. Lee, S. D. Kim, "Recrystallization Characteristics of Solar Salt After Removing of Bittern and Impurities", J Korean Soc Food Sci Nutr, Vol.37, No.2, pp.203-209, 2008. DOI: http://dx.doi.org/10.3746/jkfn.2008.37.2.203   DOI
8 KFDA. Food Code. Korean Food & Drug Administration, Seoul, Korea. pp.201-202(I), pp.139-140 (II), 2010.
9 J. W. Han, W. Kim, H. J. Lee, "Feasibility of Applying Conductive Heat and Convective Heat to the Drying Process of Safe Solar Salt", J Biosystems Engineering , Vol.44, No.4, pp.236-244, 2019. DOI : https://doi.org/10.1007/s42853-019-00034-w   DOI
10 H. Kim, J. W. Han, "Low temperature drying simulation of rough rice", J Biosystems Engineering, Vol.34, No.5, pp.351-357, 2009.   DOI
11 M. S. Chang, S. D. Cho, D. H. Bae, G. H. Kim, "Safety and Quality Assessment of Kimchi Made Using Various Salts", Korean J Food Sci Technol , Vol.42, No.2, pp.160-164, 2010.
12 O. W. Kim, H. Kim, D. C. Kim, S. S. Kim, "Determination of whiteness condition for efficient Milling in rice processing complex", J Biosystems Engineering , Vol.30, No.4, pp.242-248, 2005. DOI: https://doi.org/10.5307/JBE.2005.30.4.242   DOI
13 J. H. Lee, H. K. Kim, I. C. Kim, "Physicochemical quality properties of mudflat solar salt and roasted salt", J Korean Soc Food Sci Nutr , Vol.43, No.7, pp. 1048-1054, 2014. DOI: http://dx.doi.org/10.3746/jkfn.2014.43.7.1048   DOI