Effects of approved dose of e-beam irradiation on microbiological and physicochemical qualities of dried laver products and detection of their irradiation status
- 주제(키워드) Dried laver , Microbial load , Irradiation , Quality , Luminescence detection
- 주제(기타) Food Science & Technology
- 설명문(일반) [Lee, Eun-Jin; Ameer, Kashif; Kim, Gui-Ran; Kwon, Joong-Ho] Kyungpook Natl Univ, Sch Food Sci & Biotechnol, Daegu 41566, South Korea; [Lee, Eun-Jin] Inst Hlth & Environm Daegu Metropolitan City, Food Anal Div, Daegu 42183, South Korea; [Chung, Myong-Soo] Ewha Womans Univ, Dept Food Sci & Engn, Seoul 03760, South Korea
- 등재 SCIE, SCOPUS, KCI등재
- 발행기관 KOREAN SOCIETY FOOD SCIENCE & TECHNOLOGY-KOSFOST
- 발행년도 2018
- URI http://www.dcollection.net/handler/ewha/000000150081
- 본문언어 영어
- Published As http://dx.doi.org/10.1007/s10068-017-0194-z
- 저작권 이화여자대학교 논문은 저작권에 의해 보호받습니다.
초록/요약
Most commercial dried laver products show higher microbial contamination. This work evaluated effects of approved dose (7 kGy)-recommended in the Korean Food Code for algal food-of electron beam (E-beam) irradiation on microbiological, physicochemical and luminescence properties of dried laver products. E-beam irradiation caused dose-dependent microbial reductions. For example, a 4 kGy irradiation dose reduced coliform (< 2.5 log CFU/g) to undetectable levels (< 10 CFU/g), while a 7 kGy irradiation dose reduced total aerobic bacteria count (6.6 log CFU/g) by approximately 2 log cycles. Physicochemical attributes of dried lavers were not significantly (p > 0.05) affected before and after 7 kGy irradiation, but carotenoid content was significantly (p < 0.05) reduced at 10 kGy irradiation. Irradiated samples (> 4 kGy) could be detected from non-irradiated ones by luminescence techniques. Overall, results indicated that < 7 kGy irradiation is recommended along with other heat treatment for improving microbiological contamination by at most 4 log CFU/g in dried lavers.
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