Uncertainty associated with sampling and effect of sampling plan in aflatoxin analysis of dried figs

Ozer, H., Oktay, Basegmez, H. I., Whitaker, T. B., Slate, A. B.

Abstract

Aflatoxin test procedure is a multi-stage process and generally consists of three steps; sampling, sample preparation and analytical steps. Because of the uncertainty associated with each step, the true aflatoxin concentration of a bulk dried fig lot can’t be determined with 100% certainty. The sources of error in the aflatoxin test procedure should be determined so that the errors can be effectively reduced. <BR />Studies were developed to measure the variability and distribution among replicated sample aflatoxin test results taken from the same aflatoxin- contaminated lot of dried figs so that a model could be developed to evaluate the risk of misclassifying lots of aflatoxin sampling plan designs for dried figs.

Keywords

negative binomial distribution, operating characteristic curves, buyer’s risk, and seller’s risk

Download

IMEKO-TC23-2017-047.pdf

DOI

-

IMEKO TC

TC23 - Metrology in Food and Nutrition

Back to the proceedings