Co-Authors:
JUVEN, B.J., Division of Food Technology, Agricultural Research Organization, The Volcani Center, P.O. Box 6, Bet Dagan, 50-250, Israel
WEISSLOWICZ, H., Division of Food Technology, Agricultural Research Organization, The Volcani Center, P.O. Box 6, Bet Dagan, 50-250, Israel
Abstract:
In an attempt to use specific bacterial metabolites in a monitoring system to detect initial signs of spoilage of tomato products, the changes in bacterial counts, pH, titratable acidity and the accumulation of lactic acid, hydrogen peroxide, diacetyl (DA) and acetoin (AMC) in tomato juices inoculated with Lactobacillus plantarum, L. fermentum and Leuconostoc mesenteroides, were studied. Of the metabolites tested, it appears that DA and AMC can be taken as valuable indicators of contamination of tomato juice by lactic acid bacteria at early stages but not at advanced stages of bacterial growth. Copyright © 1981, Wiley Blackwell. All rights reserved
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