Abstract
Summary
Fermentations of glucose in the presence of carbon dioxide-C14 were carried out with strains of Actinomyces under aerobic and anaerobic conditions and with Lactobacillus bifidus. Fermentation products were isolated and degraded. It was found that succinic acid formed by these organisms had a high percentage of its radioactivity in the methylene carbons. When one strain of Actinomyces was grown in the presence of oxygen, 90% of the total activity of the succinic acid was found in the methylene carbons as compared to 62% when it was grown anaerobically.
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