Listeria methods development research at the Eastern Regional Research Center, U.S. Department of Agriculture

Buchanan, R.L.; Smith, J.L.; Stahl, H.G.; Archer, D.L.; Buchanan, R.L; Smith, J.L; Stahl, H.G; Archer, D.L

Home

>

Node

>

Subnode

Listeria methods development research at the Eastern Regional Research Center, U.S. Department of Agriculture

Buchanan, R.L.; Smith, J.L.; Stahl, H.G.; Archer, D.L.

Journal - Association of Official Analytical Chemists 71(3): 651-654

1988

ISSN/ISBN: 0004-5756

PMID: 3134336

Document Number: 325517

Listeria methods research at the U.S. Department of Agriculture, Eastern Regional Research Center, has concentrated on 2 areas during the past year. The first was development of techniques for assessing isolation methods for their ability to detect sublethally stressed cells. It appears that a number of widely used media do not accurately detect Listeria that have been injured by thermal processing or acidification. The second was development of improved plating media. One, modified Vogel-Johnson agar, shows promise; it is highly selective and quantitative, and eliminates the need to select colonies on the basis of a blue color when illuminated with reflected light.