Comparison of bactericidal effects of two types of pilot-scale intense-pulsed-light devices on cassia seeds and glutinous millet
- 주제(키워드) Intense pulsed light (IPL) , Pilot-scale , Cyclone-type , Belt-type , Seed food
- 주제(기타) Food Science & Technology
- 설명문(일반) [Hwang, Hee-Jeong; Chung, Myong-Soo] Ewha Womans Univ, Dept Food Sci & Engn, Seoul 120750, South Korea; [Cheigh, Chan-Ick] Kyungpook Natl Univ, Dept Food & Food Serv Ind, Sangju 742711, South Korea
- 등재 SCIE, SCOPUS
- 발행기관 ELSEVIER SCI LTD
- 발행년도 2018
- URI http://www.dcollection.net/handler/ewha/000000156230
- 본문언어 영어
- Published As http://dx.doi.org/10.1016/j.ifset.2018.08.011
초록/요약
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 2.04 x 10(4) and 5.03 x 10(3) CFU/g, respectively, were treated by cyclone-type and belt-type IPL devices at total fluences of 3.89-54.43 J/cm(2). The maximum microbial reductions of the cassia seeds and glutinous millet were 0.74, and 0.66 log/g, respectively, when using the cyclone-type IPL, and 2.63 and 0.55 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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