Stimulative Effects of the Various Compounds on the Acetic Acid Production by Acetobacter pasteurianus No. 2

Studies on the Substances to Stimulate Acetic Acid Fermentation Part IX

Abstract

Among various simple metabolites (22 sugars, 11 organic acids, 18 amino acids and 10 dipeptides) added to basal medium, glycerol, lactic acid, succinic acid and L-alanine were found to have a superior stimulative effect on acetic acid production by Acetobacter pasteurianus No. 2. In particular, glycerol had the remarkably stimulative activity under various culture conditions. On the other hand, glucose, malic acid, L-proline, succinic acid showed the remarkably stimulative effect on the production of acetic acid by Acetobacter aceti IFO 3281. Sugar alcohols except for glycerol were not effective to Acetobacter pasteurianus No. 2, but exhibited the stimulative effect to Acetobacter aceti IFO 3281. Among the glycerol metabolites in the EMP pathway, the supplement of DLglycerophosphate or dihydroxyacetone to basal medium showed considerably stimulative effect. Unexpectedly, no stimulative activity was observed in phospholipids and fatty acids other than cis-9-octadecenoic acid on acetic acid fermentation.