Are sample size and sample preparation for mycotoxin quantitation in grain products getting trivialized?

Sampling and sample preparation (grinding and subsampling) are largest sources of variability that negate precision and accuracy of mycotoxin quantitation, particularly in grains. In general, halving sample or sub-sample (e.g., ground test portion) size doubles variance. Therefore, this paper report...

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Bibliographic Details
Published in:Food control 2021-12, Vol.130, p.108400, Article 108400
Main Authors: Kumphanda, Joseph, Matumba, Limbikani, Monjerezi, Maurice, Whitaker, Thomas B., De Saeger, Sarah, Makun, Hussaini Anthony
Format: Article
Language:English
Subjects:
Grains
Maize
Mycotoxin quantitation
Sample preparation
Sample size
Test portion
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Summary:Sampling and sample preparation (grinding and subsampling) are largest sources of variability that negate precision and accuracy of mycotoxin quantitation, particularly in grains. In general, halving sample or sub-sample (e.g., ground test portion) size doubles variance. Therefore, this paper reports on trends in sample and test portion masses used for the quantification of mycotoxin in maize between 1991 and 2020 by reviewing articles on mycotoxin quantitation in maize (grain and flour) published during this period. About 50% of the articles did not explicitly state the sample mass that was ground. Sample and test portion masses show a significant (p 
ISSN:0956-7135
1873-7129
DOI:10.1016/j.foodcont.2021.108400