Document Detail

Assessment of the stability of pesticides during cryogenic sample processing. 1. Apples.
MedLine Citation:
PMID:  11804510     Owner:  NLM     Status:  MEDLINE    
An assessment of the stability of a large number (106) of pesticides and related compounds during the cryogenic sample processing of apples has been undertaken. For the first time the procedure included an assessment of the losses during the freezing of the fruits, prior to processing. The stability of each pesticide during processing was assessed by comparing the mean recovery for the laboratory-spiked samples with the mean "survival" of the pesticides in cryogenically processed samples. The results clearly demonstrate that the vast majority, 94 of 106, of pesticides were stable during cryogenic processing. Of particular importance was that losses of several pesticides [bitertanol (95%), heptenophos (50%), isofephos (40%), and tolylfluanid (48%)] reported to occur during ambient processing of apples did not occur during cryogenic processing. Losses of dichlofluanid (54%), chlozolinate (22%), and etridiazole (40%), previously reported to occur during ambient processing of apples, were reduced to barely significant levels (10, 17, and 14%, respectively) by cryogenic processing. Small apparent losses for a few of the compounds were attributable to analytical and sample handling difficulties, rather than to losses during processing, and need further investigation.
R J Fussell; K Jackson Addie; S L Reynolds; M F Wilson
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of agricultural and food chemistry     Volume:  50     ISSN:  0021-8561     ISO Abbreviation:  J. Agric. Food Chem.     Publication Date:  2002 Jan 
Date Detail:
Created Date:  2002-01-23     Completed Date:  2002-05-23     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0374755     Medline TA:  J Agric Food Chem     Country:  United States    
Other Details:
Languages:  eng     Pagination:  441-8     Citation Subset:  IM    
Central Science Laboratory, Sand Hutton, York YO41 1LZ, United Kingdom.
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MeSH Terms
Dry Ice
Food Handling / methods*
Malus / chemistry*
Maximum Allowable Concentration
Pesticide Residues / analysis*
Reg. No./Substance:
0/Dry Ice; 0/Pesticide Residues

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