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Article: Controlling wayward water.(r&d applications)(Decagon Devices Inc. offers instruments to measure water activity)
- Article from:
- Prepared Foods
- Article date:
- January 1, 2005
- Author:
CopyrightCOPYRIGHT 2005 BNP Media. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Certain FDA regulations help assure the safety of low-acid and acidified foods in hermetically sealed containers. These rules do not cover products with a water activity level of less than 0.85 because food pathogens generally do not grow below a range of 0.95. See chart "Limited Opportunity for Growth."
As the water activity of foods and ingredients is lowered, fewer organisms are able to grow in the product. The only pathogen capable of growing below 0.90 is S. aureus. Research indicates this organism may produce enterotoxin at water activities as low as 0.867. Intermediate-moisture foods also are regulated to [A.sub.w] levels of 0.85 or below to assure ...
Related newspaper, magazine, and journal articles:
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Article: New temperature and water activity ...
Journal of Environmental Health;
October 1, 2006 ;
700+ words
... ... SafeStorage Monitor, from Decagon Devices, Inc., allows sampling of water activity and temperature over ... s popular AquaLab water activity meter, the SafeStorage ... up to five separate water activity/temperature sensors ...
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