TY - JOUR
T1 - Assessment of microbiological contamination in saengshik products from the Korean market and identification of the irradiation status
AU - Kim, Gui Ran
AU - Shahbaz, Hafiz Muhammad
AU - Kyung, Hyun Kyu
AU - Kwon, Joong Ho
N1 - Publisher Copyright:
© 2017, The Korean Society of Food Science and Technology and Springer Science+Business Media B.V., part of Springer Nature.
PY - 2018/4/1
Y1 - 2018/4/1
N2 - This study investigated the prevalence of microbiological contamination in commercial Saengshik products (samples SP-1 to SP-12) from the Korean market, and identified their irradiation status. SP-2, SP-8, and SP-12 showed less than 3.66 and 1.10 log colony forming units (CFU)/g in total plate and coliforms counts, respectively, while the remaining samples showed more than 4.70 and 2.35 log CFU/g, respectively. Four samples were positive on some of foodborne pathogenic bacteria (Clostridium perfringens, Escherichia coli O157:H7, and Bacillus cereus). SP-2, SP-8, and SP-12 contained no pathogenic bacteria and were suspected to have been irradiated. They were confirmed as positive using photostimulated luminescence (PSL) analysis. PSL positive results on samples SP-2, SP-8 and SP-12 were finally confirmed by the authentic thermoluminescence (TL) analysis on the basis of TL glow curve shape, intensity, temperature range of TL peak maxima and TL ratio (TL1/TL2).
AB - This study investigated the prevalence of microbiological contamination in commercial Saengshik products (samples SP-1 to SP-12) from the Korean market, and identified their irradiation status. SP-2, SP-8, and SP-12 showed less than 3.66 and 1.10 log colony forming units (CFU)/g in total plate and coliforms counts, respectively, while the remaining samples showed more than 4.70 and 2.35 log CFU/g, respectively. Four samples were positive on some of foodborne pathogenic bacteria (Clostridium perfringens, Escherichia coli O157:H7, and Bacillus cereus). SP-2, SP-8, and SP-12 contained no pathogenic bacteria and were suspected to have been irradiated. They were confirmed as positive using photostimulated luminescence (PSL) analysis. PSL positive results on samples SP-2, SP-8 and SP-12 were finally confirmed by the authentic thermoluminescence (TL) analysis on the basis of TL glow curve shape, intensity, temperature range of TL peak maxima and TL ratio (TL1/TL2).
KW - Food irradiation
KW - Microbial safety
KW - Photostimulated luminescence
KW - Saengshik
KW - Thermoluminescence
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U2 - 10.1007/s10068-017-0273-1
DO - 10.1007/s10068-017-0273-1
M3 - Article
AN - SCOPUS:85045017043
SN - 1226-7708
VL - 27
SP - 607
EP - 615
JO - Food Science and Biotechnology
JF - Food Science and Biotechnology
IS - 2
ER -