Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9954397 | Innovative Food Science & Emerging Technologies | 2018 | 6 Pages |
Abstract
The aim of this study was to evaluate the bactericidal effect of two types of pilot-scale intense pulsed light (IPL) devices constructed in our laboratory. Cassia seeds and glutinous millet, with initial microbial loads of 2.04â¯Ãâ¯104 and 5.03â¯Ãâ¯103â¯CFU/g, respectively, were treated by cyclone-type and belt-type IPL devices at total fluences of 3.89-54.43â¯J/cm2. The maximum microbial reductions of the cassia seeds and glutinous millet were 0.74, and 0.66â¯log/g, respectively, when using the cyclone-type IPL, and 2.63 and 0.55â¯log/g when using the belt-type IPL device. The geometric mean diameter of cassia seeds and glutinous millet was 0.25 and 0.13, respectively. The cassia seeds having larger particle size than glutinous millet showed a greater bactericidal effect when treated with the belt-type device. Therefore, the design of the treatment chamber can have an improved bactericidal effect on cassia seeds, demonstrating the importance of selecting a suitable IPL device according to the size of the sample to be treated.
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Authors
Hee-Jeong Hwang, Chan-Ick Cheigh, Myong-Soo Chung,