Microbial Decontamination of Rice Germ Using a Large-Scale Plasma Jet-Pulsed Light-Ultraviolet-C Integrated Treatment System
- 주제(키워드) Microbial disinfection , Large scale  , system , Particulate , Combined treatment , Cold plasma
- 주제(기타) Food Science & Technology
- 설명문(일반) [Lee, Seung Young; Min, Sea C.] Seoul Womens Univ, Dept Food Sci & Technol, 621 Liwarang Ro, Seoul 01797, South Korea; [Lee, Won Kyu] Kyunghan Co Ltd, 58 Gongdan 8 Ro, Gyongsan 38463, Gyeongsanbuk Do, South Korea; [Lee, Joung Woo] Duk Young Engn Co Ltd, 803 15 228 Pngyo Ro, Seongnam Si 13487, Gyeonggi Do, South Korea; [Chung, Myong-Soo] Ewha Womans Univ, Dept Food Sci & Engn, 52 Ewhayeodae Gil, Seoul 03760, South Korea; [Oh, Se-Wook] Kookmin Univ, Dept Food & Nutr, 77 Jeongneungro, Seoul 02707, South Korea; [Shin, Jung-Kue] Jeonju Univ, Dept Korean Cuisine, 303 Cheonjam Ro, Jeonju, South Korea
- 등재 SCIE, SCOPUS
- 발행기관 SPRINGER
- 발행년도 2021
- 총서유형 Journal
- URI http://www.dcollection.net/handler/ewha/000000181392
- 본문언어 영어
- Published As http://dx.doi.org/10.1007/s11947-021-02590-6
초록/요약
Integration of plasma and pulsed light or ultraviolet has been investigated for microbial decontamination of foods. However, no studies have reported the microbial disinfection of particulate food using a large-scale system integrating the treatments. In the present study, a large-scale plasma jet-pulsed light-ultraviolet (UV)-C (PPU) system has been developed for the microbial decontamination of particulate foods. The effects of PPU treatment on the inactivation of natural mesophilic aerobic bacteria and yeast and molds of rice germ and the quality properties of rice germ were evaluated at various operation times (3, 5, 7, and 10 min) and sample amount (200, 500, 1,000, and 3,000 g). The efficacy of microbial inactivation of PPU treatment was enhanced with increasing treatment time and decreasing sample amount, and the maximum reduction was observed at 7 min with 200 g samples. The number of the natural bacteria and yeast and mold was reduced to 1.0 and 2.0 log CFU/g from an initial number of 5.7 and 3.7 log CFU/g, respectively. Compared to the individual treatments by atmospheric pressure plasma jet (APPJ) and intense pulsed light (IPL), PPU treatment synergistically inactivated microorganisms while not altering the color, antioxidant activity, or sensory properties of rice germ. The results of this study suggest the potential use of the large-scale PPU treatment system for the microbial decontamination of rice germ while minimizing alterations in quality.
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