Answers are grounded in this paper and cite their sources.
Propionibacterium freudenreichii subsp. shermanii metabolized 7 mol of aspartate to 6 mol of succinate, 4 mol of CO(2), and 7 mol of ammonia. When lactate, sparged with 100% CO(2), was fermented at pH 5.5, unexpectedly high ratios of propionate to acetate were obtained (i.e., 3.2 to 3.8:1). Citrate cycle intermediates may be involved in these fermentations.
No takes yet. Share an insight, caveat, or question.
Vaughan L. Crow (1987) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: