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Effects of approved dose of e-beam irradiation on microbiological and physicochemical qualities of dried laver products and detection of their irradiation status
- Title
- Effects of approved dose of e-beam irradiation on microbiological and physicochemical qualities of dried laver products and detection of their irradiation status
- Authors
- Lee, Eun-Jin; Ameer, Kashif; Kim, Gui-Ran; Chung, Myong-Soo; Kwon, Joong-Ho
- Ewha Authors
- 정명수
- SCOPUS Author ID
- 정명수
- Issue Date
- 2018
- Journal Title
- FOOD SCIENCE AND BIOTECHNOLOGY
- ISSN
- 1226-7708
2092-6456
- Citation
- FOOD SCIENCE AND BIOTECHNOLOGY vol. 27, no. 1, pp. 233 - 240
- Keywords
- Dried laver; Microbial load; Irradiation; Quality; Luminescence detection
- Publisher
- KOREAN SOCIETY FOOD SCIENCE &
TECHNOLOGY-KOSFOST
- Indexed
- SCIE; SCOPUS; KCI
- Document Type
- Article
- Abstract
- 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.
- DOI
- 10.1007/s10068-017-0194-z
- Appears in Collections:
- 공과대학 > 식품생명공학과 > Journal papers
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