Author: Spanjer, Martien C.

Source: Stewart Postharvest Review, Volume 3, Number 6, December 2007 , pp. 1-6(6)

Publisher: Stewart Postharvest Solutions

Abstract:

Purpose of review: This review focuses on the state-of-the-art of sampling grain for quality control of contaminants and recent developments in measurement uncertainty related to sampling and sample preparation.

Findings: Recently, an update has been published on European Commission directives regarding sampling that contains all contaminants of interest. Some relevant literature was published in the last few years, which provided some additional data on the subject. It showed that the leading principle for sampling should be what parameter has to be determined in what commodity. This leads to the conclusion that when a lot can only be sampled once, the most extended sampling scheme has to be applied. Recently, interest has arisen on uncertainties of the sampling process, for which Eurachem developed a guidance document. Gy's sampling theory is included in its draft versions.

Directions for future research: Not all relevant data are available yet for all contaminant-commodity combinations, so ongoing research is needed. The latest development is to apply sampling uncertainty to the final report on a lot, which enlarges the need for missing data with respect to sampling experiments.

Keywords: SAMPLING; GRAIN; CEREALS; MYCOTOXINS; OTA; DON; VARIABILITY; UNCERTAINTY

Document Type: Review article

DOI: http://dx.doi.org/10.2212/spr.2007.6.12

Publication date: 2007-12-01

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