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http://dx.doi.org/10.3746/jkfn.2013.42.3.421

Physical Properties of Red Pepper Powder at Different Particle Sizes  

Oh, Seung Hee (Dept. of Food Science and Technology, Chungbuk National University)
Kang, You Ri (Dept. of Food Science and Technology, Chungbuk National University)
Lee, Sang Hoon (Dept. of Food Science and Technology, Chungbuk National University)
Hwang, In Guk (Dept. of Agro-food Resources, National Academy of Agricultural Science)
Yoo, Seon Mi (Dept. of Agro-food Resources, National Academy of Agricultural Science)
Kim, Hae Young (Dept. of Food Science and Nutrition, Yongin University)
Lee, Junsoo (Dept. of Food Science and Technology, Chungbuk National University)
Jeong, Heon Sang (Dept. of Food Science and Technology, Chungbuk National University)
Publication Information
Journal of the Korean Society of Food Science and Nutrition / v.42, no.3, 2013 , pp. 421-426 More about this Journal
Abstract
We evaluated physical properties such as density, compressive characteristics, irrecoverable work, and stress relaxation of red pepper powder with different particle sizes. The particle sizes showed a normal distribution in size, with a particle size of $150{\sim}600{\mu}m$ accounting for 70.95% of the particles in the Hanbando cultivar and 82.21% in the Cheongyang cultivar. Loose bulk density ranged between 0.34 and $0.45g/cm^3$, while tapped bulk density ranged between 0.43 and $0.56g/cm^3$. The Hausner ratio was highest (1.531) at a particle size below $150{\mu}m$ in the Cheongyang cultivar. The compressibility and compression ratios were 0.001351~0.004383 and 1.0062~1.0265, respectively. Irrecoverable work ranged between 69.16% and 90.24%. The $K_2$ value and stress relaxation characteristics were greatest (1.74 and 44.92%, respectively) at particle sizes of $300{\sim}425{\mu}m$ in the Cheongyang cultivar. The dynamic angle of repose was $32.84-49.84^{\circ}$. Overall, particle sizes below $150{\mu}m$ had the highest compactibility, cohesiveness, and transformation.
Keywords
red pepper powder; physical properties; particle size; density;
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Times Cited By KSCI : 2  (Citation Analysis)
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