Abstract
The presence of zearalenone (ZEN) in Korean foods such as barley, barley-based foods, corn, corn-based foods, fruits and vegetables was investigated by direct competitive enzyme-linked immunosorbent assay (dcELISA) and the liquid chromatography (LC) method. A total of 164 samples was collected from Seoul, Korea, in 1998 and 1999 including 30 barley, 32 barley-based foods, 18 corn, 47 corn-based foods, 19 dried red pepper, nine dried jujube, and nine dried persimmon. Average recoveries of ZEN from barley and corn by dcELISA were 138 and 145%, and by LC were 91 and 83% respectively at spiking levels of 5-500 ng g-1. The detection limit for ZEN was 3 ng g-1 by dcELISA and 4 ng g-1 by LC. From 164 samples analysed, ZEN was found by dcELISA in 35 samples (21%) with a mean level of 30 ng g-1. Barley-based foods had the highest incidence of ZEN (38%) followed by barley (33%), corn-based foods (26%) and corn (22%). No ZEN was detected in any red pepper, jujube or persimmon samples. A high degree of correlation (r2=0.86) was observed between the 35 positive samples detected by dcELISA and 31 samples by LC.
Original language | English |
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Pages (from-to) | 158-162 |
Number of pages | 5 |
Journal | Food Additives and Contaminants |
Volume | 19 |
Issue number | 2 |
DOIs | |
Publication status | Published - 2002 |
Keywords
- Barley
- Barley-based foods
- Corn
- Corn-based foods
- Dried fruit
- Dried vegetable
- Enzyme-linked immunosorbent assay (ELISA)
- Mycotoxins
- Zearalenone(ZEN)
ASJC Scopus subject areas
- Public Health, Environmental and Occupational Health
- Food Science
- General Chemistry
- Health, Toxicology and Mutagenesis
- Toxicology