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논문 기본 정보

자료유형
학술저널
저자정보
박주안 (㈜엄지식품) 신정규 (전주대학교)
저널정보
한국산업식품공학회 산업식품공학 산업식품공학 제25권 제3호
발행연도
2021.8
수록면
240 - 246 (7page)
DOI
https://doi.org/10.13050/foodengprog.2021.25.3.240

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In this study, the inactivation effect of intense pulsed light with the materials of the treatment chamber was investigated. The UV-C light amount of the light source of the control was 3.595 W/m2. The UV-C light quantity of quartz with a thickness of 1 mm was 3.356 W/m2, acrylic 0.878 W/m2, and glass 0.06 W/m2, and the light transmittance was 93.4% for quartz, 24.4 for acrylic, and 1.7% for glass. As for the bactericidal effect of the materials of the treatment chamber, quartz showed the same inactivation effect as the control regardless of material thickness. A 1 mm thick acrylic showed a lethal effect of 1.1 logs after 60 s and 5.0 logs after treatment for 180 s. As the thickness increased, the lethal effect was significantly reduced. Glass had no sterilization effect regardless of its thickness. All of the death curve patterns except for glass showed a bi-phasic form. For the death rate constant and D value, the k 1 was 0.287 s?1, k 2 was 0.072 s?1, D1 value was 8.02 s, and D2 value was 31.87 s. At a thickness of 1 mm, k 1 was 0.284 s?1 and k 2 was 0.069 s?1 for quartz, k 1 was 0.018 s?1 and k 2 was 0.042 s?1 for acrylic, and k was 0.004 s?1 for glass. The D values were D1=8.11 s, D2=33.87 s for quartz, D1=127.94s, D2=54.83 s for acrylic, and D=575.75 s for glass.

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