Microbial Changes in Shredded Iceberg Lettuce Stored under Controlled Atmospheres

Microbial Changes in Shredded Iceberg Lettuce Stored under Controlled Atmospheres ABSTRACT Our purpose was to determine initial microbial populations in shredded Iceberg lettuce (Lactuca sativa L.) cv ‘Great Lakes’, and to study their changes under different controlled atmospheres. Lettuce was shredded, washed, disinfected, water rinsed and centrifuged before being stored for 12 days under air, 3% O2, 3% O2+ 5% CO2 or 3% O2+ 10% CO2. Microbiological analysis and assessment of visual quality were carried out every 3 days. No human pathogens were found. Controlled atmospheres had little or no effect on the microbiological populations studied. A 3% O2+ 10% CO2 atmosphere maintained acceptable visual quality of lettuce, without appreciably affecting microbial development. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Food Science Wiley

Microbial Changes in Shredded Iceberg Lettuce Stored under Controlled Atmospheres

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Publisher
Wiley
Copyright
Copyright © 1991 Wiley Subscription Services, Inc., A Wiley Company
ISSN
0022-1147
eISSN
1750-3841
DOI
10.1111/j.1365-2621.1991.tb08646.x
Publisher site
See Article on Publisher Site

Abstract

ABSTRACT Our purpose was to determine initial microbial populations in shredded Iceberg lettuce (Lactuca sativa L.) cv ‘Great Lakes’, and to study their changes under different controlled atmospheres. Lettuce was shredded, washed, disinfected, water rinsed and centrifuged before being stored for 12 days under air, 3% O2, 3% O2+ 5% CO2 or 3% O2+ 10% CO2. Microbiological analysis and assessment of visual quality were carried out every 3 days. No human pathogens were found. Controlled atmospheres had little or no effect on the microbiological populations studied. A 3% O2+ 10% CO2 atmosphere maintained acceptable visual quality of lettuce, without appreciably affecting microbial development.

Journal

Journal of Food ScienceWiley

Published: Nov 1, 1991

References

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