International Aflatoxin Check Sample Program: 1972 Study

Coon, Francis B.; Baur, Fred J.; Symmes, L Richardson L

doi:10.1093/jaoac/56.2.322

Cited by 2 publications

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“…Even with clearly defined aflatoxin test procedures, variability in test results among different laboratories may be high (7)(8)(9). Since all measurements in this study were made in the same laboratory, the variances do not reflect differences in laboratories and may not be representative of all laboratories.…”

Section: Analytical Variancementioning

confidence: 96%

Variability associated with testing cottonseed for aflatoxin

Whitaker

Whitten²,

Monroe

1976

J Americ Oil Chem Soc

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The sampling, subsampling, and analytical variance associated with testing cottonseed for aflatoxin were estimated by use of 4.54 kg samples, 100 g subsamples, and the Velasco method of analysis. Regression analysis indicated that each of the above variance components is a function of the concentration of aflatoxin in the populations tested. Functional relationships are presented to determine the sampling, subsampling, and analytical variance for any size sample, subsample, and number of analyses.

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Section: Analytical Variancementioning

confidence: 96%

Variability associated with testing cottonseed for aflatoxin

Whitaker

Whitten²,

Monroe

1976

J Americ Oil Chem Soc

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“…Each lot of paste was thoroughly blended and kept in cold storage during the testing period. Sixty-four 50-g samples were removed from 3 of the lots and forty 50-g samples were removed from the FDA lot. For each of the 4 lots, half of the samples were analysed for aflatoxin by the CB method and halfby the BF method.…”

Section: Methodsmentioning

confidence: 99%

Comparison of the Amounts of Aflatoxin Extracted From Raw Peanuts Using AOAC Methods I and II1

Whitaker¹,

Dickens

1983

Peanut Science

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Four lots of raw shelled peanuts, naturally contaminated with aflatoxin, were each ground into a paste. Sixty-four 50-g samples were removed from three of the lots and forty 50-g samples were removed from the fourth lot. For each lot, aflatoxin was extracted from half of the samples by the AOAC Method I (CB) and from the remaining half by the AOAC Method II (BF). The 4 lots averaged 57.8, 127.6, 238.5, and 447.1 parts per billion (ppb) total aflatoxin when measured by the CB method. On the average across the four lots, the BF method extracted 26, 25, 22, and 18% less aflatoxin B1, B2, G1, and G2, respectively, than the CB method.

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International Aflatoxin Check Sample Program: 1972 Study

Cited by 2 publications

References 0 publications

Variability associated with testing cottonseed for aflatoxin

Variability associated with testing cottonseed for aflatoxin

Comparison of the Amounts of Aflatoxin Extracted From Raw Peanuts Using AOAC Methods I and II1

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