Decontamination of Powdery Foods Using an Intense Pulsed Light (IPL) Device for Practical Application
- 주제(키워드) intense pulsed light (IPL) , cyclone , pilot scale , seeds , powdered foods
- 주제(기타) Chemistry, Multidisciplinary
- 주제(기타) Engineering, Multidisciplinary
- 주제(기타) Materials Science, Multidisciplinary
- 주제(기타) Physics, Applied
- 설명문(일반) [Hwang, Hee-Jeong] Dongguk Univ, Res Inst Biotechnol & Med Converged Sci, Goyang 10326, South Korea; [Yee, So-Yoon; Chung, Myong-Soo] Ewha Womans Univ, Dept Food Sci & Engn, Seoul 03760, South Korea
- 등재 SCIE, SCOPUS
- 발행기관 MDPI
- 발행년도 2021
- 총서유형 Journal
- URI http://www.dcollection.net/handler/ewha/000000181397
- 본문언어 영어
- Published As http://dx.doi.org/10.3390/app11041518
초록/요약
Controlling microbial problems when processing seeds and powdered foods is difficult due to their low water activity, irregular surfaces, and opaqueness. Moreover, existing thermal processing can readily cause various undesirable changes in sensory properties. Intense pulsed light (IPL) can be effective in nonthermal processing, and so two xenon lamps were attached to the sides of a self-designed cyclone type of pilot-scale IPL device. Each lamp was connected to its own power supply, and the following treatment conditions were applied to four sample types: lamp DC voltage of 1800-4200 V, pulse width of 0.5-1.0 ms, frequency of 2 Hz, and treatment time of 1-5 min. This device achieved reductions of 0.45, 0.66, and 0.88 log CFU/mL for ground black pepper, red pepper, and embryo buds of rice, respectively, under a total energy fluence of 12.31 J/cm(2). Meanwhile, >3-log reductions were achieved for sesame seed samples under a total energy fluence of 11.26 J/cm(2). In addition, analyses of color changes, water activity, and moisture content revealed no significant differences between the control and IPL-treated samples. These findings indicate that IPL treatment may be considered a feasible sterilization method for seeds and powdered foods.
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