Document Detail

Microbial populations of Botrytis cinerea-inoculated strawberry fruit exposed to four volatile compounds.
MedLine Citation:
PMID:  9798154     Owner:  NLM     Status:  MEDLINE    
Aerobic, microaerophilic, coliform, and mold populations of Botrytis cinerea-inoculated strawberry fruit not exposed (control) or exposed to low and high quantities of four volatile compounds during storage at 2 degrees C were determined after storage for 7 days and after removal of the volatile and transfer to 22 degrees C for 3 days. Fruit harvested at the ripe stage were inoculated with 10(6) conidia B. cinerea per ml and were placed in plastic containers containing no volatile compound (control) or two quantities of (E)-2-hexenal (10 or 100 microliters), (E)-2-hexenal diethyl acetal (30 or 300 microliters), benzaldehyde (30 or 300 microliters), or methyl benzoate (12 or 60 microliters). The fruit containers were overwrapped with a low-density polyethylene film, sealed, stored at 2 degrees C for 7 days, and then transferred to 22 degrees C for 3 days. Aerobic, microaerophilic, and coliform populations of fruit exposed to volatile compounds tended to be lower than the controls after storage at 2 degrees C for 7 days and, depending on the volatile compound, similar, lower, or higher than the controls after transfer and storage at 22 degrees C. However, due to variability in initial aerobic, microaerophilic, and coliform populations of the fruit used in the different trials (P < 0.05), none of the differences between control and treatment and between treatments within a sample time were significant (P > 0.05). Strawberry fruit exposed to 100 microliters of (E)-2-hexenal was the only treatment that did not show a significant increase in mold populations after transfer and storage at 22 degrees C for 3 days. Additional studies are needed to determine if (E)-2-hexenal can be used in combination with other postharvest storage conditions, such as low temperature and controlled/modified atmosphere, to delay mold spoilage and extend the shelf life of the strawberry.
G Ntirampemba; B E Langlois; D D Archbold; T R Hamilton-Kemp; M M Barth
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of food protection     Volume:  61     ISSN:  0362-028X     ISO Abbreviation:  J. Food Prot.     Publication Date:  1998 Oct 
Date Detail:
Created Date:  1999-01-08     Completed Date:  1999-01-08     Revised Date:  2000-12-18    
Medline Journal Info:
Nlm Unique ID:  7703944     Medline TA:  J Food Prot     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1352-7     Citation Subset:  IM    
Department of Animal Sciences, University of Kentucky, Lexington 40546-0215, USA.
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MeSH Terms
Aldehydes / pharmacology
Bacteria / drug effects,  isolation & purification*
Bacteria, Aerobic / drug effects,  isolation & purification
Benzaldehydes / pharmacology
Benzoates / pharmacology
Botrytis / drug effects,  isolation & purification*
Enterobacteriaceae / drug effects,  isolation & purification
Food Handling*
Fruit / microbiology*
Fungi / drug effects,  isolation & purification*
Reg. No./Substance:
0/Aldehydes; 0/Benzaldehydes; 0/Benzoates; 100-52-7/benzaldehyde; 505-57-7/2-hexenal; 93-58-3/methyl benzoate

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