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http://dx.doi.org/10.9799/ksfan.2012.25.3.656

Physicochemical Characteristics of the Sorghum(Sorghum bicolor L. Moench) Powder following Low Temperature-Microparticulation  

Kim, Hyun-Young (Dept. of Functional Crop, National Institute of Crop Science, Rural Development Administration)
Seo, Hye-In (Dept. of Functional Crop, National Institute of Crop Science, Rural Development Administration)
Ko, Jee-Yeon (Dept. of Functional Crop, National Institute of Crop Science, Rural Development Administration)
Kim, Jung-In (Dept. of Functional Crop, National Institute of Crop Science, Rural Development Administration)
Lee, Jae-Saeng (Dept. of Functional Crop, National Institute of Crop Science, Rural Development Administration)
Song, Seuk-Bo (Dept. of Functional Crop, National Institute of Crop Science, Rural Development Administration)
Jung, Tae-Wook (Dept. of Functional Crop, National Institute of Crop Science, Rural Development Administration)
Kim, Ki-Young (Dept. of Functional Crop, National Institute of Crop Science, Rural Development Administration)
Kwak, Do-Yeon (Dept. of Functional Crop, National Institute of Crop Science, Rural Development Administration)
Oh, In-Seok (Dept. of Functional Crop, National Institute of Crop Science, Rural Development Administration)
Jeong, Heon-Sang (Dept. of Food Science and Technology, Chungbuk National University)
Woo, Koan-Sik (Dept. of Functional Crop, National Institute of Crop Science, Rural Development Administration)
Publication Information
The Korean Journal of Food And Nutrition / v.25, no.3, 2012 , pp. 656-663 More about this Journal
Abstract
Two sorghum(Sorghum bicolor L. Moench cv. Hwanggeumchal-susu and Miryang 3) samples were milled using different milling methods, and their physicochemical properties were tested. Particle size was classified into five groups such as pin mill and low temperature-microparticulation(LTM; 10,000, 20,000, 30,000, and 40,000 rpm). The water absorption index (WAI), water solubility index(WSI), and a rapid Visco analyzer(RVA) were used to examine particle size distribution and color differences. Particle size of sorghum flour prepared using LTM was lower than that prepared using a pin mill. Particle size was further reduced by successive dry milling of the LTM flour. Lightness of colored pigments increased when particle size decreased. The WAI of Miryang 3 pin milling(M1) flour was the lowest after LTM, and WSI was higher in the order of M2, M3, M4, and M5. LTM sorghum flour had significantly higher pasting viscosity, as determined using a rapid Visco analyzer. LTM Miryang 3 sorghum flour(M2~M5) flour showed lower breakdown viscosity and higher final viscosity compared to those of M1 flour, resulting in an increased setback value.
Keywords
low temperature-microparticulation; sorghum(Sorghum bicolor L. Moench); milling method; physicochemical characteristics;
Citations & Related Records
Times Cited By KSCI : 15  (Citation Analysis)
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