Survey of aflatoxin contaminated commercial peanut butter and peanut products, raw shelled peanuts imported into Japan from 1970 to 1972

Abstract

Aflatoxin B₁ contamination was surveyed in commercial peanut butter(49 lots)and peanuts products(33 lots)in Japan during November 1970 to February 1971. Aflatoxin B₁ was detected in 49%(24 lots of 49 lots) of peanut butter samples, and 88% (29 lots of 33 lots) of the samples peanuts products. The aflatoxin B₁ levels for peanut butter and peanuts products were range of 3 - 42 ppb and range of 3 - 9 ppb, respectively. Aflatoxin B₁ contamination was surveyed in raw shelled peanuts(992 lots), peanut butter(259 lots), butter peanut(53 lots), peanut miso(2 lots) and peanut oil(1 lot), imported to Japan during March 1971 to Augaut 1972. The regulation level of aflatoxin B₁ in food is 10 ppb in Japan. Aflatoxin B₁ was detected in 8.6%(85 lots of 992 lots)of the raw shelled peanuts, 9.7%(25 lots of 259 lots)of the peanut butter, 5.7%(3 lots of 53 lots)of the butter peanut, and 4.6%(46 lots)of raw shelled peanuts, 3.9%(10 lots)of peanut butter, and 3.8%(2 lots)of butter peanut were rejected as having above the regulation level of aflatoxin B₁. Aflatoxin B₁ contamination of small-type raw shelled peanuts was detected in exports from 20 of 31 countries. Aflatoxin B₁ was detected in 3.4%(670 lots of 19,863 lots)of small-type raw shelled peanut samples and 1.4% (269 lots) were rejected as having above the regulation level of aflatoxin B₁. The aflatoxin B₁ levels for raw shelled peanuts, peanut butter and butter peanut were range 10 - 7400 ppb, 10 - 85ppb and 10 - 85 ppb, respectively.