Fate of aflatoxin B1 during the cooking of Korean Polished rice

Je Won Park, Chan Lee, Young Bae Kim

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

The fate of aflatoxin B1 (AFB1), a mycotoxin known to occur in polished rice, during rice cooking was evaluated to determine reduction in AFB1 residues and mutagenic potentials. The amounts of AFB1 in three lots of naturally contaminated polished rice from Korea were analyzed by high-performance liquid chromatography after washing and after steaming. An in vitro mutagenicity assay with Salmonella Typhimurium TA100 was used to confirm the results of the chemical analyses. Cooking significantly reduced AFB1 (mean reduction, 34%) in naturally contaminated polished rice and reduced mutagenicity by ca. 27%. Processing factors (reflecting the removal of AFB1 residues during processing) for cooked rice were estimated at 0.66 to 0.73, as determined chemically and toxicologically, respectively. The revised Korean provisional daily intake of AFB1 from consumption of rice as a dietary staple (0.58 to 3.94 ng/kg of body weight per day) is still higher than that reported for foods in general in the United States (0.26 ng/kg of body weight per day). Thus, Koreans probably consume higher amounts of foodborne AFB1 than do Americans and thus are at higher risk for AFB1-induced health consequences.

Original languageEnglish
Pages (from-to)1431-1434
Number of pages4
JournalJournal of Food Protection
Volume68
Issue number7
Publication statusPublished - 2005 Jul 1

Fingerprint

Aflatoxin B1
aflatoxin B1
Cooking
cooking
rice
mutagenicity
processing residues
Body Weight
steaming
body weight
Oryza
Mycotoxins
staples
Salmonella typhimurium
Korea
Salmonella Typhimurium
mycotoxins
washing
Korean Peninsula
high performance liquid chromatography

ASJC Scopus subject areas

  • Food Science
  • Microbiology

Cite this

Fate of aflatoxin B1 during the cooking of Korean Polished rice. / Park, Je Won; Lee, Chan; Kim, Young Bae.

In: Journal of Food Protection, Vol. 68, No. 7, 01.07.2005, p. 1431-1434.

Research output: Contribution to journalArticle

Park, Je Won ; Lee, Chan ; Kim, Young Bae. / Fate of aflatoxin B1 during the cooking of Korean Polished rice. In: Journal of Food Protection. 2005 ; Vol. 68, No. 7. pp. 1431-1434.
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