Document Detail


Effect of sample size in the evaluation of "in-field" sampling plans for aflatoxin B(1) determination in corn.
MedLine Citation:
PMID:  20608734     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Use of proper sampling methods throughout the agri-food chain is crucial when it comes to effectively detecting contaminants in foods and feeds. The objective of the study was to estimate the performance of sampling plan designs to determine aflatoxin B(1) (AFB(1)) contamination in corn fields. A total of 840 ears were selected from a corn field suspected of being contaminated with aflatoxin. The mean and variance among the aflatoxin values for each ear were 10.6 mug/kg and 2233.3, respectively. The variability and confidence intervals associated with sample means of a given size could be predicted using an equation associated with the normal distribution. Sample sizes of 248 and 674 ears would be required to estimate the true field concentration of 10.6 mug/kg within +/-50 and +/-30%, respectively. Using the distribution information from the study, operating characteristic curves were developed to show the performance of various sampling plan designs.
Authors:
Carlo Brera; Barbara De Santis; Elisabetta Prantera; Francesca Debegnach; Elena Pannunzi; Floriana Fasano; Clara Berdini; Andrew B Slate; Marina Miraglia; Thomas B Whitaker
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of agricultural and food chemistry     Volume:  58     ISSN:  1520-5118     ISO Abbreviation:  J. Agric. Food Chem.     Publication Date:  2010 Aug 
Date Detail:
Created Date:  2010-08-04     Completed Date:  2010-11-22     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0374755     Medline TA:  J Agric Food Chem     Country:  United States    
Other Details:
Languages:  eng     Pagination:  8481-9     Citation Subset:  IM    
Affiliation:
GMO and Mycotoxins Unit, Department of Veterinary Public Health and Food Safety, Italian Institute for Health (ISS), Viale Regina Elena 299, Rome, Italy. carlo.brera@iss.it
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MeSH Terms
Descriptor/Qualifier:
Aflatoxin B1 / analysis*
Food Contamination / analysis*,  statistics & numerical data
Sample Size*
Selection Bias
Zea mays / chemistry*,  physiology
Chemical
Reg. No./Substance:
1162-65-8/Aflatoxin B1

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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